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Comment configurer Grub pour charger automatiquement le noyau Xen

Comment configurez-vous Grub pour utiliser automatiquement le noyau Xen sous Ubuntu 11.10?

Peu importe ce que je fais, il charge le premier menuentry. La seule façon de l'obtenir pour charger Xen est de sélectionner manuellement le noyau, ce que je ne peux pas faire si je dois redémarrer le serveur à distance, ou en cas de panne de courant et de démarrage automatique de la machine lorsque l'alimentation est rétablie, etc. me rend fou.

Dans mon /boot/grub/grub.cfg, le noyau Xen est à l’index 4 (c’est-à-dire qu’il s’agit du cinquième menuentry). Alors j'ai essayé:

  1. Définition de GRUB_DEFAULT = 4 et exécution de Sudo update-grub
  2. Définition de GRUB_DEFAULT = sauvegardé et GRUB_SAVEDEFAULT = true et exécution de Sudo update-grub
  3. Définition de GRUB_DEFAULT = "Ubuntu GNU/Linux, avec serveur Xen 4.1-AMD64 et Linux 3.0.0-16", et exécution de Sudo update-grub

Aucun de ces travaux. Il continue à charger le premier menuentry, "Ubuntu, avec Linux 3.0.0-16-server".

Vous trouverez ci-dessous mon /boot/grub/grub.cfg actuel. Qu'est-ce que je fais mal?

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
set default="Ubuntu GNU/Linux, with Xen 4.1-AMD64 and Linux 3.0.0-16-server"
if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}

function load_video {
  insmod vbe
  insmod vga
  insmod video_bochs
  insmod video_cirrus
}

insmod raid
insmod mdraid1x
insmod part_msdos
insmod part_msdos
insmod ext2
set root='(mduuid/be73165bc31d6f5cd00d05036c7b964f)'
search --no-floppy --fs-uuid --set=root d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  insmod raid
  insmod mdraid1x
  insmod part_msdos
  insmod part_msdos
  insmod ext2
  set root='(mduuid/be73165bc31d6f5cd00d05036c7b964f)'
  search --no-floppy --fs-uuid --set=root d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac
  set locale_dir=($root)/boot/grub/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ]; then
  set timeout=-1
else
  set timeout=2
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30; then
  clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
if [ ${recordfail} != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
if [ "$linux_gfx_mode" != "text" ]; then load_video; fi
menuentry 'Ubuntu, with Linux 3.0.0-16-server' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    set gfxpayload=$linux_gfx_mode
    insmod gzio
    insmod raid
    insmod mdraid1x
    insmod part_msdos
    insmod part_msdos
    insmod ext2
    set root='(mduuid/be73165bc31d6f5cd00d05036c7b964f)'
    search --no-floppy --fs-uuid --set=root d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac
    linux   /boot/vmlinuz-3.0.0-16-server root=UUID=d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac ro   
    initrd  /boot/initrd.img-3.0.0-16-server
}
menuentry 'Ubuntu, with Linux 3.0.0-16-server (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod raid
    insmod mdraid1x
    insmod part_msdos
    insmod part_msdos
    insmod ext2
    set root='(mduuid/be73165bc31d6f5cd00d05036c7b964f)'
    search --no-floppy --fs-uuid --set=root d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac
    echo    'Loading Linux 3.0.0-16-server ...'
    linux   /boot/vmlinuz-3.0.0-16-server root=UUID=d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd  /boot/initrd.img-3.0.0-16-server
}
submenu "Previous Linux versions" {
menuentry 'Ubuntu, with Linux 3.0.0-12-server' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    set gfxpayload=$linux_gfx_mode
    insmod gzio
    insmod raid
    insmod mdraid1x
    insmod part_msdos
    insmod part_msdos
    insmod ext2
    set root='(mduuid/be73165bc31d6f5cd00d05036c7b964f)'
    search --no-floppy --fs-uuid --set=root d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac
    linux   /boot/vmlinuz-3.0.0-12-server root=UUID=d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac ro   
    initrd  /boot/initrd.img-3.0.0-12-server
}
menuentry 'Ubuntu, with Linux 3.0.0-12-server (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod raid
    insmod mdraid1x
    insmod part_msdos
    insmod part_msdos
    insmod ext2
    set root='(mduuid/be73165bc31d6f5cd00d05036c7b964f)'
    search --no-floppy --fs-uuid --set=root d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac
    echo    'Loading Linux 3.0.0-12-server ...'
    linux   /boot/vmlinuz-3.0.0-12-server root=UUID=d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd  /boot/initrd.img-3.0.0-12-server
}
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
submenu "Xen 4.1-AMD64" {
menuentry 'Ubuntu GNU/Linux, with Xen 4.1-AMD64 and Linux 3.0.0-16-server' --class ubuntu --class gnu-linux --class gnu --class os --class xen {
    insmod raid
    insmod mdraid1x
    insmod part_msdos
    insmod part_msdos
    insmod ext2
    set root='(mduuid/be73165bc31d6f5cd00d05036c7b964f)'
    search --no-floppy --fs-uuid --set=root d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac
    echo    'Loading Xen 4.1-AMD64 ...'
    multiboot   /boot/xen-4.1-AMD64.gz placeholder  
    echo    'Loading Linux 3.0.0-16-server ...'
    module  /boot/vmlinuz-3.0.0-16-server placeholder root=UUID=d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac ro  
    echo    'Loading initial ramdisk ...'
    module  /boot/initrd.img-3.0.0-16-server
}
menuentry 'Ubuntu GNU/Linux, with Xen 4.1-AMD64 and Linux 3.0.0-16-server (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os --class xen {
    insmod raid
    insmod mdraid1x
    insmod part_msdos
    insmod part_msdos
    insmod ext2
    set root='(mduuid/be73165bc31d6f5cd00d05036c7b964f)'
    search --no-floppy --fs-uuid --set=root d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac
    echo    'Loading Xen 4.1-AMD64 ...'
    multiboot   /boot/xen-4.1-AMD64.gz placeholder 
    echo    'Loading Linux 3.0.0-16-server ...'
    module  /boot/vmlinuz-3.0.0-16-server placeholder root=UUID=d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac ro single 
    echo    'Loading initial ramdisk ...'
    module  /boot/initrd.img-3.0.0-16-server
}
menuentry 'Ubuntu GNU/Linux, with Xen 4.1-AMD64 and Linux 3.0.0-12-server' --class ubuntu --class gnu-linux --class gnu --class os --class xen {
    insmod raid
    insmod mdraid1x
    insmod part_msdos
    insmod part_msdos
    insmod ext2
    set root='(mduuid/be73165bc31d6f5cd00d05036c7b964f)'
    search --no-floppy --fs-uuid --set=root d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac
    echo    'Loading Xen 4.1-AMD64 ...'
    multiboot   /boot/xen-4.1-AMD64.gz placeholder  
    echo    'Loading Linux 3.0.0-12-server ...'
    module  /boot/vmlinuz-3.0.0-12-server placeholder root=UUID=d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac ro  
    echo    'Loading initial ramdisk ...'
    module  /boot/initrd.img-3.0.0-12-server
}
menuentry 'Ubuntu GNU/Linux, with Xen 4.1-AMD64 and Linux 3.0.0-12-server (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os --class xen {
    insmod raid
    insmod mdraid1x
    insmod part_msdos
    insmod part_msdos
    insmod ext2
    set root='(mduuid/be73165bc31d6f5cd00d05036c7b964f)'
    search --no-floppy --fs-uuid --set=root d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac
    echo    'Loading Xen 4.1-AMD64 ...'
    multiboot   /boot/xen-4.1-AMD64.gz placeholder 
    echo    'Loading Linux 3.0.0-12-server ...'
    module  /boot/vmlinuz-3.0.0-12-server placeholder root=UUID=d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac ro single 
    echo    'Loading initial ramdisk ...'
    module  /boot/initrd.img-3.0.0-12-server
}
}
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
    insmod raid
    insmod mdraid1x
    insmod part_msdos
    insmod part_msdos
    insmod ext2
    set root='(mduuid/be73165bc31d6f5cd00d05036c7b964f)'
    search --no-floppy --fs-uuid --set=root d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac
    linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
    insmod raid
    insmod mdraid1x
    insmod part_msdos
    insmod part_msdos
    insmod ext2
    set root='(mduuid/be73165bc31d6f5cd00d05036c7b964f)'
    search --no-floppy --fs-uuid --set=root d72bad3f-9ed7-44b9-b3d1-d7af9f62a8ac
    linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
servergrub2virtualizationxen
3
Cerin

Par essais et erreurs, j’ai trouvé que cela fonctionnait si j’utilisais le nom de sous-menu "Xen 4.1-AMD64" pour GRUB_DEFAULT. Je ne comprends toujours pas pourquoi l'utilisation du nom menuentry n'a pas fonctionné ...

0
Cerin

Etes-vous sûr que l'ancienne commande de mise à jour update-grub ne devrait pas être:

grub2-mkconfig -o /boot/grub2/grub.cfg
1
nippur