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pascal@13697
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1 (c) GPLv2, Pascal Bellard <pascal.bellard@slitaz.org>
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2
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pascal@14247
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3 The iso2exe tool inserts a DOS/WIN32 .EXE header in an ISO image.
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4 The ISO image can be launched by DOS or Windows :
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5
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6 C:\> ren slitaz-5.0.iso slitaz.exe
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7 C:\> slitaz
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8
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9
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10 Why ?
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11
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paul@13692
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12 According to the SliTaz forum, some new users have problems burning CD-ROMs,
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13 creating USB Keys and booting these devices with the BIOS. Others are lost
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paul@13692
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14 during the installation process or partitioning.
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15
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16 The slitaz.exe program boots the SliTaz ISO image with a text menu:
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17
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paul@13692
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18 - to start SliTaz in RAM (live) in graphics mode or text mode.
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19
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20 - to install SliTaz "a la UMSDOS" in the \slitaz\ subdirectory. The easiest
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21 way to install SliTaz. No partitioning. No questions. But (very) slow.
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22
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pascal@13756
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23 - to create a SliTaz USB Key.
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24
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25 When the slitaz.exe program can't boot SliTaz directly it will prompt to create
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26 a bootable image on a removeable media (Memory card, USB stick or ... floppy).
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27
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28 Usage:
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29
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30 C:\> progname [mode]
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31
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32 Default mode is menu. Mode can be:
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33
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34 - menu start with an interactive menu
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35 - live launch SliTaz in RAM with graphics
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36 - text launch SliTaz in RAM with text mode
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37 - install SliTaz UMSDOS like installation
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38
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pascal@17160
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39 If the program name includes one of the supported modes, the according mode is
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40 assumed. Example 'C:\> slitazlive.exe' starts SliTaz in RAM with graphics.
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41
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42
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43 Implementation:
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44
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45 ISO9660 format begins with 32Kb unused (16 sectors). Some programs may use it:
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46
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47 - isolinux uses the first 512 bytes for hybrid iso boot (ISO image in a
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48 partition).
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paul@13692
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49 - tazlito stores extra flavor info at the 2nd Kb for 'tazlito iso2flavor'.
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50
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51 The iso2exe tool moves the isolinux boot sector, installs its own boot sector
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52 with a DOS .EXE header, and adds a WIN32 .EXE installer, a DOS .COM Linux
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pascal@17450
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53 loader, a floppy bootstrap and an initramfs in the end of the first 32Kb.
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54
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55 +-----------------+
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56 | untouched | ISO9660 files including /boot/bzImage and /boot/rootfs*
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57 32K +-----------------+
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58 | DOS .EXE stub | Start DOS .COM loader
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59 +-----------------+
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60 | ISO initramfs | Live loader and UMSDOS like install script
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61 +-----------------+
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62 | DOS .COM loader | Load bzImage, the last rootfs*.gz and the ISO initramfs
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63 +-----------------+
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64 | floppy bootstrap| CD-ROM emulation boot driver for hard disk ISO image
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65 +-----------------+
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66 unused
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67 +-----------------+
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68 | tazlito info | Flavor missing data for 'tazlito iso2flavor'
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69 +-----------------+
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70 | isohybrid boot | Starts isolinux.bin
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71 +-----------------+
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72 | iso2exe boot + | Boot starts isohybrid (*), .EXE starts DOS .COM loader
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73 | WIN32 PE .exe | NT+ boot device creator / Win9x DOS .COM launcher.
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74 0 +-----------------+
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75
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76 * Eltorito boot (i.e. bootable CD-ROM by BIOS) is not concerned by iso2exe.
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77
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78
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79 Limitations:
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80
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81 - Only DOS 3 to 7 boot supported. Checked with http://www.allbootdisks.com/
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82 NT/XP support via boot device creation.
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83
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84 - Real mode support only. VM86 is not supported. Will not boot directly, but
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85 a removable boot media is created.
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86
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87 - The DOS Linux loader and the ISO initramfs must fit in ~30Kb.
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88
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89 - Linux kernels before version 2.6.30 don't support multiple initramfs load.
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90 They will not find the /init.exe file. The "text" mode will be forced:
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91 C:\> slitaz.exe text
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92
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93 - The ISO image must include the files /boot/bzImage and /boot/rootfs*.
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94
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95 TODO:
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96
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97 - Add XMM and VCPI (VM86) support.
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98
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99 - floppy bootstrap
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100
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