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pascal@276
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1 #!/bin/sh
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pascal@276
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2
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paul@351
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3 ### cached kernel parameters :
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pascal@341
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4 #
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pascal@341
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5 # modprobe=
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pascal@341
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6 # list of modules to load, example modprobe=r8169,btrfs
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pascal@341
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7 #
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pascal@342
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8 ### Frugal mode or live CD : using a root ram disk.
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pascal@341
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9 #
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pascal@341
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10 # tmpram= [RAMDISK]
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pascal@341
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11 # minimum % of free RAM to build the root tmpfs, default 100
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pascal@341
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12 # a lower value may work, such as 50
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pascal@341
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13 # rootfssize= [RAMDISK]
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pascal@341
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14 # size of / regarding the RAM size, default 90%
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pascal@407
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15 # rootfsinodes= [RAMDISK]
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pascal@464
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16 # files count of / regarding the RAM size
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pascal@341
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17 #
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pascal@342
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18 ### Indirect mode ; an initramfs is used to mount root from the hard disk.
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pascal@342
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19 ### Any rootfs should fit, minimum required is slitaz-base.
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pascal@341
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20 #
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pascal@341
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21 # mount= [MOUNT]
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pascal@341
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22 # device with root loop file or sub directory
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pascal@341
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23 # posixovl [MOUNT]
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pascal@341
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24 # use posix attributes on a non posix filesystem (VFAT, NTFS...)
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pascal@341
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25 # loopfs= [MOUNT]
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pascal@341
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26 # loop file for root filesystem
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pascal@341
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27 # subroot= [MOUNT]
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pascal@341
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28 # sub directory for root filesystem
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paul@351
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29 # bindfs= [MOUNT] (deprecated)
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pascal@341
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30 # bind out of root tree part
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pascal@341
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31 #
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pascal@469
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32 # extra= [MOUNT]
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pascal@469
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33 # extra initrd files list to load
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pascal@469
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34 #
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pascal@342
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35 ### Special disk mode ; needs extra modules/softwares from preinit flavor.
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pascal@341
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36 #
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pascal@341
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37 # dmraid= [RAID]
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pascal@341
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38 # root semi hardware raid device name in /dev/mapper
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pascal@341
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39 # softraid= [RAID]
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pascal@341
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40 # root software device name in /dev/mapper
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pascal@341
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41 # lvmroot= [LVM]
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pascal@341
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42 # root logical volume name in /dev/mapper
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pascal@341
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43 # cryptoroot= [CRYPTO]
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pascal@341
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44 # encrypted root device using luks or loop-aes
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pascal@341
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45 #
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pascal@418
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46 ### Special mode used by loram flavor with aufs/overlayfs & squashfs
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pascal@342
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47 ### incremental/nested rootfs (russian dolls).
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pascal@341
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48 #
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pascal@341
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49 # rodev= [LORAM][MERGE]
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pascal@341
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50 # device (+ optional path) for the read only aufs branch
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pascal@341
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51 # rwdev= [LORAM][MERGE]
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paul@351
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52 # (persistent) device for the r/w aufs branch instead of the ramfs
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pascal@341
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53 # isofs [LORAM]
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pascal@341
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54 # do not use squashfs filesystem images, but the cdrom filesystem only
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pascal@341
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55
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al@416
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56
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al@416
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57 fail() {
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al@416
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58 echo -e '\033[70G[ \033[1;3'${1:-1mFailed}'\033[0;39m ]'
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pascal@278
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59 }
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pascal@278
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60
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al@416
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61
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al@416
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62 quit() {
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al@416
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63 [ -d /mnt$4/etc ] || return
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pascal@430
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64 grep -q serial /proc/ioports && ! grep -q ttyS /mnt$4/etc/inittab &&
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pascal@430
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65 echo "ttyS0::respawn:/sbin/getty 115200,38400,9600,4800,2400 ttyS0" \
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pascal@430
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66 >> /mnt$4/etc/inittab
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pascal@427
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67 [ -n "$4" ] || grep -q 'tmpfs /mnt tmpfs' /proc/mounts ||
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pascal@427
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68 busybox mount /mnt -o remount,ro
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al@416
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69 busybox mount --move /run /mnt/${1:-run}
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al@416
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70 cat > /run/init <<EOT
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pascal@314
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71 $2
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pascal@314
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72 x=/sbin/switch_root
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pascal@314
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73 [ -x \$x ] && exec \$x mnt $3 /sbin/init
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pascal@276
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74 EOT
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al@416
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75 fail 2mDone
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al@416
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76 exit
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pascal@276
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77 }
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pascal@276
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78
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al@416
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79
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al@416
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80 arg() {
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al@416
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81 grep -q $1 /proc/cmdline
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pascal@276
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82 }
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pascal@276
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83
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al@416
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84
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al@416
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85 got() {
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pascal@447
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86 arg $1= && root="$(sed "s/.*$1=\\([^ ]*\\).*/\\1/" </proc/cmdline)"
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pascal@276
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87 }
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pascal@276
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88
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al@416
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89
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al@416
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90 msg() {
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al@416
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91 echo "Switching / to $1..."
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pascal@276
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92 }
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pascal@276
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93
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al@416
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94
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al@416
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95 use() {
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al@416
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96 got $1 && msg "$1 $root"
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pascal@276
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97 }
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pascal@276
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98
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al@416
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99
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pascal@450
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100 bbmnt() {
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pascal@471
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101 r=$(blkid 2> /dev/null | grep "$root[:\"]" | sed 's|:.*||;q')
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pascal@470
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102 r=${r:-$(busybox blkid $root 2> /dev/null | sed 's|:.*||;q')}
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al@416
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103 r=${r:-$root}
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al@416
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104 if [ ! -b $r ]; then
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al@416
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105 r=${r#/dev/}
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al@416
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106 r=/dev/${r%%/*}
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al@416
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107 fi
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al@416
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108 d=${root#*$r}
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pascal@470
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109 t=$(busybox blkid $r 2> /dev/null | sed '/ TYPE=/!d;s/.* TYPE="//;s/".*//')
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pascal@469
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110 busybox mount $r $1 ${t:+-t $t}
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pascal@450
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111 }
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pascal@450
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112
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pascal@450
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113
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pascal@450
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114 mnt() {
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pascal@450
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115 bbmnt $1 && return
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al@416
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116 w=$(cat /sys/module/usb_storage/parameters/delay_use)
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al@416
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117 w=$((1+${w:-2}))
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pascal@450
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118 echo "Sleep $w seconds..."
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al@416
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119 sleep $w
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pascal@450
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120 bbmnt $1
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pascal@314
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121 }
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pascal@314
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122
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al@416
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123
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al@416
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124 mod() {
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al@416
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125 for i in $@; do
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pascal@465
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126 grep -q "^$i\\W" /proc/modules && continue
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pascal@465
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127 grep -q "\\W$i\$" /proc/filesystems && continue
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al@416
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128 echo "Loading module: $i"
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pascal@451
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129 modprobe $i 2>/dev/null ||
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pascal@464
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130 for j in $(find /lib/modules /mnt/.fs*/lib/modules|sed "/\/$i.ko/!d" 2> /dev/null); do
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pascal@451
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131 busybox insmod $j && break
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pascal@451
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132 done
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al@416
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133 done
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pascal@314
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134 }
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pascal@314
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135
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al@416
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136
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al@416
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137 try() {
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al@416
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138 if [ ! -d /mnt/etc ] && got cryptoroot; then
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al@416
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139 mod dm-mod dm-crypt aes-256
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al@416
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140 d=${root#/dev/}
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al@416
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141 l=crypto-$d
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al@416
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142 if cryptsetup isLuks $root 2>/dev/null; then
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al@416
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143 cryptsetup luksOpen $root $l
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al@416
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144 else
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al@416
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145 read -st 60 -p "Pass phrase : " p
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al@416
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146 k=$(echo $p|hashalot -x -n 32 sha512)
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al@416
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147 echo 0 $(cat $(find /sys/block|grep /$d/size))\
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al@416
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148 crypt aes-plain $k 0 $root 0|dmsetup create $l
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al@416
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149 fi
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al@416
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150 busybox mount /dev/mapper/$l /mnt
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pascal@314
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151 fi
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al@416
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152 got subroot && return
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al@416
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153 got loopfs && return
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al@416
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154 if [ -d /mnt/etc ]; then
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al@416
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155 for i in $@; do
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al@416
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156 cp -a $i /mnt$(dirname $i)
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al@416
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157 done
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al@416
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158 quit
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al@416
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159 fi
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al@416
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160 fail
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pascal@314
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161 }
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pascal@314
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162
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al@416
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163
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al@416
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164 lvm() {
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al@416
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165 use lvmroot || return
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al@416
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166 mod dm-mod
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al@416
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167 vgscan --ignorelockingfailure
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al@416
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168 vgchange -ay --ignorelockingfailure
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al@416
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169 busybox mount /dev/mapper/$root /mnt
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al@416
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170 try /dev/mapper $1
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pascal@314
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171 }
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pascal@314
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172
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al@416
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173
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al@416
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174 ldraid() {
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al@416
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175 while read l; do
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al@416
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176 case "$l" in
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al@416
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177 *raid10*) mod raid10;;
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al@416
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178 *raid0*) mod raid0;;
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al@416
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179 *raid1*) mod raid1;;
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al@416
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180 *raid*) mod raid456;;
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al@416
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181 *mirror*) mod dm-mirror;;
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al@416
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182 esac
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al@416
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183 done
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pascal@276
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184 }
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pascal@276
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185
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al@416
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186
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pascal@469
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187 mntiso() {
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pascal@469
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188 umnt=
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pascal@469
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189 if got mount; then
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pascal@469
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190 dev=$root
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pascal@469
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191 x=$(busybox blkid|grep $dev|sed 's/:.*//;q')
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pascal@469
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192 root=${x:-$dev}
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pascal@469
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193 [ "$dev" = "$root" ] || dev="$root ($dev)"
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pascal@469
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194 echo "Mount $dev..."
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pascal@469
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195 mnt $1
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pascal@469
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196 umnt=" $umnt $1"
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pascal@469
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197 arg posixovl && echo "And posixovl..." && umnt=" $umnt $1" &&
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pascal@469
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198 mount.posixovl -F $1 -- -oallow_other -odefault_permissions -osuid
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pascal@469
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199 fi
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pascal@469
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200 got loopfs && echo "Into file $root..." && umnt=" $umnt $1" &&
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pascal@469
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201 losetup /dev/loop0 $1/$root && root=/dev/loop0 && mnt $1
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pascal@469
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202 [ -z "$umnt" ] && mnt $1
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pascal@469
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203 got bindfs && echo "Bind ${root/,/ to }..." &&
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pascal@469
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204 busybox mount --bind $1/${root%,*} $1/${root/,//}
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pascal@469
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205 true
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pascal@469
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206 }
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pascal@469
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207
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al@416
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208
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al@416
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209
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al@416
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210 if [ "$1" != 'log' ]; then
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al@373
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211 busybox mount -t proc proc /proc
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al@373
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212 busybox mount -t sysfs sys /sys
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al@373
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213 busybox mount -t tmpfs tmpfs /run
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pascal@314
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214 x=/sbin/init; echo "[ -x $x ] && exec $x" >/run/init
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pascal@314
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215 $0 log 2>&1 | tee /run/boot.log
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pascal@410
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216 busybox umount /sys
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al@373
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217 busybox umount /proc
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pascal@310
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218 . /run/init
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pascal@314
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219 sh
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pascal@314
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220 fi
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al@416
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221
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pascal@459
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222 mdev -s 2> /dev/null ||
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pascal@410
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223 for i in /sys/block/*/dev /sys/block/*/*/dev ; do
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pascal@411
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224 [ -s "$i" ] || continue
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pascal@410
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225 n=${i%/dev}
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pascal@410
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226 n=/dev/${n##*/}
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pascal@410
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227 [ -e $n ] && continue
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pascal@410
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228 echo "Create $n "
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pascal@410
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229 mknod $n b $(sed 's/:/ /' < $i)
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pascal@410
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230 done
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al@416
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231
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pascal@341
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232 got modprobe && mod ${root//,/ }
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al@416
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233
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pascal@384
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234 [ -d /proc/sys/dev/cdrom ] &&
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al@393
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235 ln -s $(sed '/name/!d;s/.*:[^a-z]*//' /proc/sys/dev/cdrom/info) /dev/cdrom
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al@416
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236
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al@393
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237 if use dmraid; then
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al@393
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238 dmraid -s | sed '/^type/!ds/.*: *//' | ldraid
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pascal@314
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239 [ ${root:0:4} = /dev ] ||
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al@393
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240 root=/dev/mapper/$(dmraid -s|sed '/^name/!ds/.*: *//')p${root#p}
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pascal@314
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241 dmraid -ay
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pascal@314
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242 fi
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pascal@399
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243 use raiddev && raiddev="DEVICE ${root//,/ }"
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pascal@399
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244 use raidmail && raidmail="MAILADDR $root"
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al@393
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245 if use softraid; then
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pascal@418
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246 for i in 1 2 3 4 5 6 7 8 9; do
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pascal@418
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247 mdadm -E -s -c partitions > /etc/mdadm.conf
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pascal@418
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248 grep -qs " $root " /etc/mdadm.conf && break
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pascal@418
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249 sleep $i
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pascal@418
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250 done
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pascal@399
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251 [ "$raiddev" ] && echo "$raiddev" >> /etc/mdadm.conf
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pascal@399
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252 [ "$raidmail" ] && echo "$raidmail" >> /etc/mdadm.conf
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al@393
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253 grep level=raid /etc/mdadm.conf | ldraid
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pascal@452
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254 udevd --daemon
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pascal@452
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255 udevadm trigger
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pascal@452
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256 udevadm settle
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al@393
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257 for i in 1 2 3 4 5 6 7 8 9; do
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al@393
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258 sleep $i
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pascal@314
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259 mdadm -A -s
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pascal@452
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260 for j in $(sed '/\/md/!d;s|.*md/*\([0-9]*\).*|md\1|' \
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pascal@452
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261 /etc/mdadm.conf); do
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pascal@452
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262 grep -qs "$j : act" /proc/mdstat || continue 2
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pascal@452
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263 done
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pascal@452
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264 break
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pascal@314
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265 done
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pascal@419
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266 grep -qs "^$(basename $root) : act" /proc/mdstat ||
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pascal@418
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267 root=$(awk '/^md/ { print "/dev/" $1; exit }' < /proc/mdstat)
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pascal@323
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268 lvm /etc/mdadm.conf
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pascal@314
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269 fi
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pascal@323
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270 lvm
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al@416
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271
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pascal@469
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272 got extra && extra=$root && mntiso /mnt && for i in ${extra//,/ }; do
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pascal@471
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273 grep -q ' lm ' /proc/cpuinfo && [ -s /mnt/${i}64 ] && i=${i}64
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pascal@471
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274 (unlzma < /mnt/$i 2>/dev/null || zcat /mnt/$i 2>/dev/null || cat /mnt/$i) | cpio -idmu
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pascal@469
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275 done && for i in $umnt; do umount -l $i; done
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pascal@323
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276 arg cryptoroot= && try
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al@393
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277 if use subroot; then
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al@393
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278 cp $(LD_TRACE_LOADED_OBJECTS=1 /lib/ld*.so /usr/sbin/chroot | sed\
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pascal@314
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279 's|.*=> \(/lib/l[^ ]*\).*|\1|;/^\//!d') /usr/sbin/chroot /run
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pascal@314
|
280 r=$root/run
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pascal@314
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281 quit $r "export LD_LIBRARY_PATH=$r:/lib"\
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pascal@323
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282 "$root$(ls /run/ld-*so) $r/chroot $root" "/$root"
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pascal@314
|
283 fi
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pascal@321
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284 quit
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pascal@314
|
285 msg tmpfs
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pascal@314
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286 root=100
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pascal@314
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287 got tmpram
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pascal@314
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288 r=$root
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pascal@464
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289 got rootfsinodes && inodes=",nr_inodes=$root"
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pascal@314
|
290 root=90%
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pascal@314
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291 got rootfssize
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pascal@314
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292 [ $(busybox free|busybox awk '/Mem:/{print int(($4*100)/$3)}') -ge $r ] &&
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pascal@464
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293 busybox mount -t tmpfs -o size=$root$inodes tmpfs /mnt &&
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pascal@462
|
294 export PATH=/mnt/bin:$PATH &&
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pascal@462
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295 for i in $(ls -a /); do
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al@416
|
296 case "$i" in
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al@416
|
297 .*|cdrom) ;;
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pascal@463
|
298 mnt|proc|run|sys) mkdir /mnt/$i;;
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pascal@463
|
299 dev) cp -a /$i /mnt;;
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pascal@463
|
300 *) mv /$i /mnt; ln -s /mnt/$i / 2> /dev/null ||
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pascal@463
|
301 LD_LIBRARY_PATH=/mnt/lib:/mnt/usr/lib:/lib:/usr/lib \
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pascal@463
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302 /mnt/lib/ld-linux.so.2 /mnt/bin/ln -s /mnt/$i /;;
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al@416
|
303 esac
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al@416
|
304 done || fail 3mSkipped
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pascal@314
|
305 quit
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pascal@465
|
306 mod squashfs 2>/dev/null || exit
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pascal@314
|
307 msg aufs
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pascal@314
|
308 br=/mnt/.rw
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pascal@402
|
309 mkdir $br /mnt/.wd
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pascal@314
|
310 got rwdev && mnt $br && br=$br$d
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pascal@314
|
311 o=
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pascal@314
|
312 p=
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pascal@314
|
313 c=/mnt/.cdrom
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al@393
|
314 if [ -z "$(ls /mnt/rootfs* 2>/dev/null)" ]; then
|
al@393
|
315 root=/dev/cdrom/fs
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pascal@314
|
316 got rodev
|
pascal@314
|
317 mkdir -p $c /mnt$c /mnt/.rw$c
|
pascal@469
|
318 mntiso $c
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pascal@314
|
319 o="-o 124"
|
pascal@314
|
320 p=/.cdrom/boot
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pascal@318
|
321 c=$c$d
|
pascal@276
|
322 fi
|
pascal@314
|
323 l=0
|
pascal@314
|
324 r=
|
pascal@402
|
325 got isofs && r=:$c || for i in /mnt$p/rootfs?*.gz; do
|
al@393
|
326 fs=${i#*root}
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pascal@314
|
327 r=$r:/mnt/.$fs
|
pascal@314
|
328 mkdir -p /mnt/.rw/mnt/.$fs /mnt/.$fs
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pascal@469
|
329 losetup $o /dev/loop$((++l)) $i
|
pascal@469
|
330 busybox mount -o ro -t squashfs /dev/loop$l /mnt/.$fs
|
pascal@276
|
331 done
|
pascal@402
|
332 while read type opt; do
|
pascal@465
|
333 mod $type || continue
|
pascal@464
|
334 busybox mount -t $type -o $opt none /mnt && break
|
pascal@402
|
335 done <<EOT
|
pascal@402
|
336 aufs br=$br$r
|
pascal@402
|
337 overlayfs workdir=/mnt/.wd${r/:/,lowerdir=},upperdir=$br
|
pascal@402
|
338 EOT
|
pascal@314
|
339 quit
|