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1 #!/bin/sh
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2 # Tazusb - SliTaz LiveUSB
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3 #
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4 # Tazusb is an utility to generate, configure and manipulate SliTaz LiveUSB
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5 # bootable media and/or USB /home partition, such as flash keys, SD card or
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6 # USB harddisk.
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7 #
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8 # Authors : Christophe Lincoln (Pankso) <pankso@slitaz.org>
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9 # Andrew Miller (Spode) <spode@spodesabode.com>
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10 #
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11 VERSION=20080304
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12
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13 COMMAND=$1
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14 TARGET_ROOT=/media/flash
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15 DRIVE_NAME=`cat /proc/sys/dev/cdrom/info | grep "drive name" | cut -f 3`
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16 CDROM=/dev/$DRIVE_NAME
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17
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18 #
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19 # Tazusb functions
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20 #
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21
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22 # Print the usage.
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23 usage ()
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24 {
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25 echo -e "\nSliTaz Live USB - Version: $VERSION\n
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26 \033[1mUsage: \033[0m `basename $0` [command] [compression|device]
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27 \033[1mCommands: \033[0m\n
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28 usage Print this short usage.
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29 writefs Write the current filesystem to rootfs.gz.
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30 tazSupported compression: lzma. gzip, none.
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31 format Format and label device with ext3 filesystem
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32 (for LiveUSB or /home).
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33 gen-liveusb Generate a bootable LiveUSB using files from the LiveCD.\n"
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34 }
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35
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36 # Status function.
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37 status()
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38 {
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39 local CHECK=$?
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40 echo -en "\\033[70G[ "
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41 if [ $CHECK = 0 ]; then
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42 echo -en "\\033[1;33mOK"
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43 else
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44 echo -en "\\033[1;31mFailed"
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45 fi
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46 echo -e "\\033[0;39m ]"
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47 }
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48
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49 # Exit if user is not root.
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50 check_root()
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51 {
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52 if test $(id -u) != 0 ; then
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53 echo -e "\nThis program requires being run as root.\n"
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54 exit 0
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55 fi
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56 }
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57
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58 # Verify a device exists before format or install
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59 check_for_device()
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60 {
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61 DEVID=`fdisk -l | grep -w $DEVICE | cut -d: -f1 | cut -d/ -f3`
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62 if [ -z "$DEVID" ]; then
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63 echo -e "\nUnable to find device: $DEVICE\n"
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64 exit 0
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65 fi
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66
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67 PARTID=/dev/"$DEVID"1
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68 }
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69
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70 #gets the UUID and filesystem type
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71 get_part_info()
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72 {
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73 UUID=`blkid -s UUID -o value $PARTID`
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74 FSTYPE=`blkid -s TYPE -o value $PARTID`
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75 }
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76
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77 # Format target device and label partition.
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78 mkfs_ext3()
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79 {
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80 echo -n "Please specify a label for the partition (TazUSB): "
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81 read label
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82
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83 if [ -z $label ]; then
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84 label=TazUSB
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85 fi
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86
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87 echo "Label : $label"
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88 echo "Mkfs : mkfs.ext3 -L \"$label\" $PARTID"
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89 echo "" && sleep 2
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90 mkfs.ext3 -L "$label" $PARTID
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91
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92 }
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93
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94 # Mount an existing USB device.
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95 unmount_target_usb()
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96 {
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97 # If mount point is in use, unmount
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98 if mount | grep $TARGET_ROOT; then
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99 umount $TARGET_ROOT
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100 fi
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101
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102 # Device could be mounted elsewhere, so unmount
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103 if mount | grep $PARTID; then
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104 echo "Unmounting USB target device..."
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105 umount $PARTID
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106 fi
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107 }
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108
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109 # Mount an existing USB device.
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110 mount_target_usb()
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111 {
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112 # If mount point is in use, unmount
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113 if mount | grep $TARGET_ROOT; then
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114 umount $TARGET_ROOT
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115 fi
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116
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117 # Device could be mounted elsewhere, so unmount
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118 if mount | grep $PARTID; then
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119 umount $PARTID
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120 fi
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121
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122 echo "Mounting USB target device..."
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123 mkdir -p $TARGET_ROOT
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124 mount $PARTID $TARGET_ROOT 2>/dev/null
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125 }
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126
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127 # Mount SliTaz LiveCD to get needed files.
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128 mount_cdrom()
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129 {
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130 echo "Mounting cdrom device..."
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131
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132 if mount | grep /media/cdrom; then
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133 umount /media/cdrom
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134 fi
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135
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136 mkdir -p /media/cdrom
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137 mount -t iso9660 $CDROM /media/cdrom
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138
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139 if [ ! -f /media/cdrom/boot/rootfs.gz ]; then
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140 echo -e "\nUnable to find a filesystem on the cdrom (rootfs.gz).\n"
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141 exit 0
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142 fi
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143 }
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144
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145 # All needed files are in the boot direcory of the cdrom.
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146 copy_cdrom_files()
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147 {
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148 echo -n "Copying needed files from cdrom..."
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149 mkdir -p $TARGET_ROOT/boot
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150 cp /media/cdrom/boot/bzImage $TARGET_ROOT/boot
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151 cp /media/cdrom/boot/rootfs.gz $TARGET_ROOT/boot
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152 status
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153 }
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154
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155 install_mbr()
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156 {
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157 # MBR
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158 if [ -f /usr/share/syslinux/mbr.bin ]; then
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159 echo -n "Installing a new MBR to: $DEVICE"
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160 cat /usr/share/syslinux/mbr.bin > $DEVICE
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161 status
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162 else
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163 # Skip MBR install (tazpkg get-install syslinux-extra ? and then cat)
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164 echo "No new MBR installed to: $DEVICE"
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165 fi
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166 }
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167
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168 # ext/syslinux install
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169 install_boot()
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170 {
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171 #decide if we're installing syslinux or extlinux
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172 if [ "$FSTYPE" = "vfat" ]; then
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173 ST=syslinux
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174 STC="syslinux -d /boot/syslinux/ $PARTID"
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175 STE=cfg
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176 else
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177 ST=extlinux
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178 STC="extlinux --install $TARGET_ROOT/boot/$ST"
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179 STE=conf
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180 fi
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181
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182 echo "Installing bootloader: $ST"
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183 mkdir -p $TARGET_ROOT/boot/$ST
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184 $STC
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185
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186 # extlinux.conf / syslinux.cfg
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187 cat > $TARGET_ROOT/boot/$ST/$ST.$STE << _EOT_
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188 display display.txt
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189 default slitaz
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190 timeout 20
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191 label slitaz
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192 kernel /boot/bzImage
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193 append initrd=/boot/rootfs.gz rw root=/dev/null home=$UUID
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194
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195 label previous
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196 kernel /boot/bzImage
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197 append initrd=/boot/previous.gz rw root=/dev/null home=$UUID
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198
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199 _EOT_
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200
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201 # display.txt
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202 cat > $TARGET_ROOT/boot/$ST/display.txt << "EOT"
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203 _______. __ __ .___________. ___ ________
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204 / || | | | | | / \ | /
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205 | (----`| | | | `---| |---` / ^ \ `---/ /
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206 \ \ | | | | | | / /_\ \ / /
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207 .----) | | `----.| | | | / _____ \ / /----.
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208 |_______/ |_______||__| |__| /__/ \__\ /________|
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209
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210
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211 SliTaz GNU/Linux LiveUSB
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212 Simple Light Incredible Temporary Autonomus Zone
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213
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214
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215 EOT
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216 status
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217 }
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218
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219 # Let user exit or reboot.
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220 exit_or_reboot()
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221 {
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222 echo ""
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223 echo -n "Do you want to exit Tazusb or reboot system (Exit/reboot) ? "
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224 read anser
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225 if [ "$anser" == "reboot" ]; then
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226 umount $TARGET_ROOT
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227 umount /media/cdrom
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228 reboot || reboot -f
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229 else
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230 umount /media/cdrom
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231 echo "==============================================================================="
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232 echo ""
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233 exit 0
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234 fi
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235 }
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236
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237 set_bootable()
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238 {
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239 # As the boot flag is toggable, need to check it before hand
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240 ISSET=`fdisk -l $DEVICE | grep $DEVICE | grep "*"`
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241
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242 # If not set, set bootable
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243 if [ -z "$ISSET" ]; then
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244 umount $DEVICE
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245 echo "Setting $PARTID as bootable..."
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246 fdisk $DEVICE >/dev/null << EOF
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247 a
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248 1
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249 w
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250 EOF
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251 status
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252 fi
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253 }
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254
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255 #
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256 # Tazusb sequence
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257 #
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258
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259 case $COMMAND in
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260 writefs)
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261 #writefs to rootfs.gz
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262 check_root
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263 if [ -z $2 ]; then
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264 COMPRESSION=none
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265 else
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266 COMPRESSION=$2
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267 fi
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268 #start info
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269 echo ""
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270 echo -e "\033[1mWrite filesystem\033[0m
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271 ===============================================================================
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272 The command writefs will write all the current filesystem into a suitable cpio
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273 archive (rootfs.gz) usable on a bootable LiveUSB media.
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274
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275 Archive compression: $COMPRESSION"
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276 echo ""
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277
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278 #clear out tazpkg cache
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279 rm /var/cache/tazpkg/* -r -f
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280
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281 #optionally remove sound card selection
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282 echo -n "Do you wish to remove the sound card selection (Yes/no/exit) ? "
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283 read answer
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284 answer=`echo "$answer:0:1}" | tr A-Z a-z`
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285
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286 if [ "$answer" = "e" ]; then
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287 exit 0
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288 fi
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289
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290 if [ "$answer" = "y" ]; then
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291 echo -n "Removing current sound card selection..."
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292 rm -f /var/lib/sound-card-driver
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293 rm -f /etc/asound.state
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294 else
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295 echo -n "Keeping current sound card selection..."
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296 fi
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297 status
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298
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299 #create list of files
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300 find /bin /etc /init /sbin /var /dev /lib /mnt /root /usr >/tmp/list
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301
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302 for dir in /home /proc /sys /tmp /media /media/cdrom /media/flash /media/usbdisk
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303 do
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304 echo $dir >>/tmp/list
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305 done
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306
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307 #gen initramfs with specified compression
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308 if [ "$COMPRESSION" = "lzma" ]; then
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309 echo -n "Creating rootfs.gz with lzma compression... "
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310 cat /tmp/list | cpio -o -H newc | lzma e -si -so > /rootfs.gz
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311
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312 elif [ "$COMPRESSION" = "gzip" ]; then
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313 echo -n "Creating rootfs.gz with gzip compression... "
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314 cat /tmp/list | cpio -o -H newc | gzip -9 > /rootfs.gz
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315
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316 else
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317 echo -n "Creating rootfs.gz without compression... "
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318 cat /tmp/list | cpio -o -H newc > /rootfs.gz
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319 fi
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320
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321 #get initramfs size
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322 size=`du -sh /rootfs.gz | cut -f 1`
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323
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324 #if the bootable medium is where it should be, copy across
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325
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326 if (test -e /home/boot/bzImage); then
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327 echo "Moving rootfs.gz to media. Remember to unmount for delayed writes!"
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328
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329 #move the old filesystem with the unix timestamp for reference
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330 if (test -e /home/boot/previous.gz); then
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331 mv /home/boot/previous.gz /home/boot/rootfs.gz.$(date +%s)
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332 fi
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333
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334 mv /home/boot/rootfs.gz /home/boot/previous.gz
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335 mv /rootfs.gz /home/boot/.
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336 else
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337 echo "rootfs.gz is located in /"
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338 fi
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339
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340 echo "==============================================================================="
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341 echo "Root filesystem size: $size"
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342 echo ""
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343 ;;
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344 format)
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345 # Format a partitions in ext3.
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346 check_root
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347 echo ""
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348 echo -e "\033[1mFormat a device\033[0m"
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349 echo "==============================================================================="
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350 DEVICE=$2
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351 if [ -z $DEVICE ]; then
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352 echo -e "\nPlease specify a device to format: tazusb $COMMAND /dev/name\n"
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353 exit 0
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354 fi
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355 check_for_device
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356 echo "Device : $DEVICE"
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357 mkfs_ext3
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358 echo "==============================================================================="
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359 echo "Device $label ($PARTID) is ready to use as LiveUSB and/or /home partition."
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360 echo ""
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361 ;;
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spode@0
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362 gen-liveusb)
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363 # Generate a LiveUSB media using files from a LiveCD.
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364 check_root
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365 echo ""
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366 echo -e "\033[1mGen a LiveUSB media\033[0m"
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367 echo "==============================================================================="
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368 DEVICE=$2
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369 if [ -z $DEVICE ]; then
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370 echo -e "\No device specified. Usage: tazusb $CAMMAND /dev/name\n"
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371 exit 0
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372 fi
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373
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374 check_for_device
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spode@0
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375 get_part_info
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376 unmount_target_usb
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spode@0
|
377 install_mbr
|
spode@0
|
378 set_bootable
|
spode@0
|
379 mount_target_usb
|
spode@0
|
380 mount_cdrom
|
spode@0
|
381 copy_cdrom_files
|
spode@0
|
382 install_boot
|
spode@0
|
383 exit_or_reboot
|
spode@0
|
384 ;;
|
spode@0
|
385 usage|*)
|
spode@0
|
386 # Display usage by default.
|
spode@0
|
387 usage
|
spode@0
|
388 ;;
|
spode@0
|
389 esac
|
spode@0
|
390
|
spode@0
|
391 exit 0
|