wip grub
This commit is contained in:
Marc Beninca
parent
64c5f9b709
commit
589507824d
4 changed files with 377 additions and 4 deletions
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**********
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Make image
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**********
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@ -5,4 +5,4 @@ GRUB
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.. toctree::
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modules
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image
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standalone
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@ -1,3 +1,85 @@
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*******
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Modules
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*******
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===== ==========================
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date display/set date/time
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echo display message
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eval expression evaluation
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help commands and args
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sleep escape interruptible pause
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test if then else fi
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true true/false nop commands
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===== ==========================
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=========== ============================================
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at_keyboard keyboard layouts handling for terminal_input
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keylayouts change keyboard layout
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keystatus test alt/ctrl/shift keys
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read variable until enter
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=========== ============================================
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====== ========
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halt shutdown
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reboot restart
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====== ========
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========= =========================================
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biosdisk disks detection via bios
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cpuid check if cpu can handle 64 bit and/or PAE
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lspci list pci devices
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videoinfo list video modes
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========= =========================================
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========== ======================================
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part_gpt guid partition table partitions scheme
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part_msdos master boot record partitions scheme
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========== ======================================
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=========== ================================================
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btrfs | better file system
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exfat | ms extended file allocation table file system
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ext2 | linux file systems
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fat | ms file allocation table file system
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hfs | apple file system
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hfspluscomp | apple extended file system with compression
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iso9660 | older optical disk file system
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ntfscomp | ms new technology file system with compression
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tar | tar archive format handling
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| (for embedded fonts,locales,etc.)
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udf | optical disk file system
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=========== ================================================
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====== =====================================
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search set root according to uuid/label/file
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====== =====================================
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=========== ===================================
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cat display file content
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configfile load different menu/script file
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gcry_crc crc hash algorithm
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gcry_md5 md5 hash algorithm
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gcry_sha1 sha1 hash algorithm
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gcry_sha256 sha256 hash algorithm
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gcry_sha512 sha512 hash algorithm
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hashsum hash file, needs gcry_ modules
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loadenv load and save menu environment file
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testspeed file loading benchmark
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=========== ===================================
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======== =================================
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loopback turn a file into a virtual device
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memdisk ram disk
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======== =================================
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===== =========================
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linux kernel & initial ram disk
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===== =========================
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================== ===========================
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gfxterm_background | color/image
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| triggers graphic terminal
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jpeg | jpeg image format
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png | png image format
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tga | tga image format
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================== ===========================
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294
source/grub/standalone.rst
Normal file
294
source/grub/standalone.rst
Normal file
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@ -0,0 +1,294 @@
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**********
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Standalone
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**********
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# Choisir les modules à inclure
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[Parmi la liste suivante](modules.md)
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# Télécharger les paquets nécessaires
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## actuels
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================== ===================================
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grub2-common fichiers v2 communs
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grub-common fichiers v2 et v1 communs
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grub-efi-amd64 architecture EFI avec installation
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grub-efi-amd64-bin architecture EFI sans installation
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grub-pc architecture BIOS avec installation
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grub-pc-bin architecture BIOS avec installation
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================== ===================================
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## anciens
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=========== ============
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grub-efi transitional
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grub-legacy maintenance
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=========== ============
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# Créer une arborescence autonome
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boot/grub/grub.cfg
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```bash
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search --set --fs-uuid "YYYY-MM-DD-hh-mm-ss-cc"
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```
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Or at worst:
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```bash
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search --set --label "LA_BEL"
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```
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# Générer une image modulaire
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/bin/tar
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```bash
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tar
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--create
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--dereference
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--file='grub.tar'
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--verbose
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boot
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```
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* moddep.lst
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* kernel.img
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* lzma_decompress.img
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* diskboot.img
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* *.mod
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/usr/bin/grub-mkimage
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```bash
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grub-mkimage
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--directory='i386-pc'
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--format='i386-pc'
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--memdisk='grub.tar'
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--output='i386-pc/core.img'
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modules…
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```
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i386-pc-eltorito for ISO encapsulation
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# Rendre un périphérique amorçable
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* boot.img
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* core.img
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/usr/sbin/grub-bios-setup
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```bash
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grub-bios-setup \
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--directory="i386-pc" \
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/dev/sd?
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```
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# Créer un menu de démarrage
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## couleurs disponibles
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========= ============= =========== ==========
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black blue green cyan
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red magenta brown light-gray
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dark-gray light-blue light-green light-cyan
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light-red light-magenta yellow white
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========= ============= =========== ==========
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les arrière-plans noirs sont en fait transparents !
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## variables d’environnement disponibles
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==================== ========================================
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chosen 4
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color_highlight black/light-gray
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color_normal light-gray/black
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default "${id}"
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gfxmode 1024x768
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gfxpayload keep
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gfxterm_font unicode
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lang en_US
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locale_dir
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menu_color_highlight white/blue
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menu_color_normal cyan/blue
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pager 1
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prefix (hd?,msdos?)/Portable/Grub/Versions/grub
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root hd?,msdos?
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theme …/.txt
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timeout -1
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==================== ========================================
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======= =====
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cmdpath (hd?)
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======= =====
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## fichier de persistence d’environnement
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/usr/bin/grub-editenv
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```bash
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grub-editenv file create
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grub-editenv file set variable=value
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grub-editenv file unset variable
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```
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## démarrer un système préparé
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Attention, lamentables plantages en vue si :
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* le live-media-path ne comprend aucun fichier .squashfs
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* le nom du fichier à charger ne finit pas par .squashfs
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* le nom du fichier à charger n’est que .squashfs
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* le nom du fichier à charger contient une virgule
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---
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* /live/name.squashfs
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```bash
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linux /live/subdir/vmlinuz boot="live" toram="subdir/name.squashfs"
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initrd /live/subdir/initrd.img
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```
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```bash
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loopback loop /live/dir/name.squashfs
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linux (loop)/vmlinuz boot="live" toram="dir/name.squashfs"
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initrd (loop)/initrd.img
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```
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* Debian installed
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```bash
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unset path
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uuid="????????-????-????-????-????????????"
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search --set="path" --fs-uuid "${uuid}"
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if [ "${path}" ]; then
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path="(${path})"
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linux "${path}/vmlinuz" \
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elevator=deadline \
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root=UUID=${uuid}
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initrd "${path}/initrd.img"
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fi
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```
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* Debian Installer
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```bash
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linux "/path/to/vmlinuz" priority="low"
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```
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```bash
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linux "/path/to/vmlinuz" auto="true" \
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file="/hd-media/path/to/preseed"
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```
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---
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```bash
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initrd /path/to/gtk/initrd.gz
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```
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---
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La recherche d’ISO ne va pas à plus d’1 niveau d’arborescence !
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Peut-on vraiment spécifier quelle ISO au préalable ?!
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```bash
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iso-scan/ask_second_pass="true" iso-scan/filename="/path/to/file.iso"
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```
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* Debian Live
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```bash
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file="/path/to.iso"
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loopback loop "${file}"
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path="(loop)/live"
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linux "${path}/vmlinuz" boot="live" findiso="${file}" components
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initrd "${path}/initrd.img"
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```
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* PartedMagic
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```bash
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file="/path/to.iso"
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loopback loop ${file}
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path="(loop)/pmagic"
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linux "${path}/bzImage64" iso_filename="${file}" load_ramdisk=1
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initrd "${path}/initrd.img" "${path}/fu.img" "${path}/m64.img"
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```
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* Windows
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```
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menuentry "Windows" {
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drivemap -s (hd0) (hd1)
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chainloader (hd0,msdos2)+1
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}
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```
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* CloneZilla
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```bash
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file="/path/to/file.iso"
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loopback loop "${file}"
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path="(loop)/live"
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linux "${path}/vmlinuz" findiso="${file}" \
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boot="live" union="overlay" \
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username="user" config components \
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toram="filesystem.squashfs" ip="" \
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locales="en_US.UTF-8" keyboard-layouts="fr-latin9" \
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```
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---
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```bash
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ocs_live_batch="yes" \
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ocs_prerun="mount /dev/disk/by-uuid/${cz_home} /mnt" \
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ocs_prerun1="mount --bind /mnt/${cz_partimag} /home/partimag" \
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ocs_live_run="ocs-live-restore" \
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```
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```bash
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ocs_live_extra_param="\
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-e1 auto -e2 -t -r -j2 -cs -k \
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-p reboot restoreparts ask_user ${cz_target}"
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```
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```bash
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ocs_live_extra_param="\
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-q2 -j2 -rm-win-swap-hib -gs -z1p -i 1000000 -fsck-y \
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-p reboot saveparts ask_user ${cz_target}"
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```
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---
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```bash
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ocs_live_batch="no" \
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ocs_live_run="ocs-live-general" \
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```
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---
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```bash
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initrd "${path}/initrd.img"
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```
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* ISO
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```bash
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xorrisofs \
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\
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-output live-grub.iso \
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\
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-volid "LIVE_GRUB" \
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-boot-info-table \
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-no-emul-boot \
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--modification-date="YYYYMMDDhhmmsscc" \
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-eltorito-boot live/boot/grub/2.02-2/i386-pc/core.img \
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-eltorito-catalog "boot.cat" \
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--boot-catalog-hide \
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\
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-exclude live/sources \
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-exclude live/boot/debian.squashfs/debootstrap \
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-exclude live/boot/debian.squashfs/live \
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-root "live" \
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"live"
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```
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