wok annotate syslinux/stuff/iso2exe/README @ rev 13691
syslinux: add iso2exe
| author | Pascal Bellard <pascal.bellard@slitaz.org> |
|---|---|
| date | Thu Dec 13 14:33:27 2012 +0100 (2012-12-13) |
| parents | |
| children | 87a217af01ea |
| rev | line source |
|---|---|
| pascal@13691 | 1 The iso2exe tool inserts a DOS .EXE header in an ISO image. |
| pascal@13691 | 2 The ISO image can be launched by DOS : |
| pascal@13691 | 3 |
| pascal@13691 | 4 C:\> ren slitaz-5.0.iso slitaz.exe |
| pascal@13691 | 5 C:\> slitaz |
| pascal@13691 | 6 |
| pascal@13691 | 7 |
| pascal@13691 | 8 Why ? |
| pascal@13691 | 9 |
| pascal@13691 | 10 According to the SliTaz forum, some new users have problems to burn CD-ROM, |
| pascal@13691 | 11 create USB Keys, and boot these devices with the BIOS. Others are lost during |
| pascal@13691 | 12 installation process or partitionning. |
| pascal@13691 | 13 |
| pascal@13691 | 14 The slitaz.exe program boots the SliTaz ISO image with a text menu: |
| pascal@13691 | 15 |
| pascal@13691 | 16 - to start SliTaz in RAM (live) in graphic mode or text mode. |
| pascal@13691 | 17 |
| pascal@13691 | 18 - to install SliTaz "a la UMSDOS" in the \slitaz\ subdirectory. The simplest |
| pascal@13691 | 19 way install to SliTaz. No partionning. No questions. |
| pascal@13691 | 20 |
| pascal@13691 | 21 |
| pascal@13691 | 22 Usage: |
| pascal@13691 | 23 |
| pascal@13691 | 24 C:\> progname [mode] |
| pascal@13691 | 25 |
| pascal@13691 | 26 Default mode is menu. mode can be: |
| pascal@13691 | 27 |
| pascal@13691 | 28 - menu start with an interactive menu |
| pascal@13691 | 29 - live launch SliTaz in RAM with graphics |
| pascal@13691 | 30 - text launch SliTaz in RAM with text mode |
| pascal@13691 | 31 - install SliTaz UMSDOS like installation |
| pascal@13691 | 32 |
| pascal@13691 | 33 If the progname name includes one of the supported mode, the according mode is |
| pascal@13691 | 34 assumed. Example 'C:\> slitazlive.exe' starts SliTaz in RAM with graphics. |
| pascal@13691 | 35 |
| pascal@13691 | 36 |
| pascal@13691 | 37 Implementation: |
| pascal@13691 | 38 |
| pascal@13691 | 39 ISO9660 format begins with 32Kb unused (16 sectors). Some programs may use it: |
| pascal@13691 | 40 |
| pascal@13691 | 41 - isolinux uses the first 512 bytes for hybrid iso boot (ISO image in a |
| pascal@13691 | 42 partition). |
| pascal@13691 | 43 - tazlito stores flavor extra infos at the 2nd Kb for 'tazlito iso2flavor'. |
| pascal@13691 | 44 |
| pascal@13691 | 45 The iso2exe tool moves the isolinux boot sector, installs its own boot sector |
| pascal@13691 | 46 with a DOS .EXE header, and adds a DOS .COM Linux loader and an initramfs in |
| pascal@13691 | 47 the end of the first 32Kb. |
| pascal@13691 | 48 |
| pascal@13691 | 49 +-----------------+ |
| pascal@13691 | 50 | untouched | ISO9660 files including /boot/bzImage and /boot/rootfs* |
| pascal@13691 | 51 32K +-----------------+ |
| pascal@13691 | 52 | ISO initramfs | Live loader and UMSDOS like install script |
| pascal@13691 | 53 +-----------------+ |
| pascal@13691 | 54 | DOS .COM loader | Load bzImage, the last rootfs*.gz and the ISO initramfs |
| pascal@13691 | 55 +-----------------+ |
| pascal@13691 | 56 unused |
| pascal@13691 | 57 +-----------------+ |
| pascal@13691 | 58 | tazlito info | Flavor missing datas for 'tazlito iso2flavor' |
| pascal@13691 | 59 1K +-----------------+ |
| pascal@13691 | 60 | isohybrid boot | Starts isolinux.bin |
| pascal@13691 | 61 512 +-----------------+ |
| pascal@13691 | 62 | iso2exe boot | Boot starts isohybrid (*), .EXE starts DOS .COM loader |
| pascal@13691 | 63 0 +-----------------+ |
| pascal@13691 | 64 |
| pascal@13691 | 65 * Eltorito boot (i.e. bootable CD-ROM by BIOS) is not concerned by iso2exe. |
| pascal@13691 | 66 |
| pascal@13691 | 67 |
| pascal@13691 | 68 Limitations: |
| pascal@13691 | 69 |
| pascal@13691 | 70 - Real mode support only. VM86 is not (yet?) supported |
| pascal@13691 | 71 |
| pascal@13691 | 72 - Image/zImage format not supported. bzImage only. Can't boot memtest or gpxe. |
| pascal@13691 | 73 |
| pascal@13691 | 74 - The tiny Linux loader can't load more than 15Mb of files. (not really a |
| pascal@13691 | 75 problem since many-in-1 ISO format). |
| pascal@13691 | 76 |
| pascal@13691 | 77 - The DOS Linux loader and the ISO initramfs must fit in ~30Kb. |
| pascal@13691 | 78 |
| pascal@13691 | 79 - Old Linux kernels don't support multiple initramfs load. They will not |
| pascal@13691 | 80 find the /init.exe file. As workaround, you can add the "text" argument: |
| pascal@13691 | 81 C:\> slitaz.exe text |
| pascal@13691 | 82 |
| pascal@13691 | 83 - The ISO image must include the files /boot/bzImage and /boot/rootfs* |
| pascal@13691 | 84 |