やっぱり影響あった”消えた/dev/sda事件！” 犯人は"/boot/grub/grub.cfg"
この前の件ですが、やっぱり影響ありました。orz
au HTC EVOを抜いて起動すると「kernelが見つからん」みたいに怒られました。インストールDVDから起動し"Ubuntuを試す"から端末開いて、man 8 grub-installの通りに
# grub-install --boot-directory=/mnt/boot /dev/sda
でgrubを復旧させても、やっぱり「kernelが見つからん」と怒られます。
今更、再インストールはしたくないので*1、UbuntuTips/Others/RepairMbrWithGrub - Ubuntu Japanese Wikiの方法でとりあえず起動させていろいろ試行錯誤してたら、
root@ubuntu-server:~# cat /boot/grub/grub.cfg # # 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 $prefix/grubenv ]; then set have_grubenv=true load_env fi set default="0" if [ "${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 "${boot_once}" ]; then save_env recordfail; fi; fi } function load_video { insmod vbe insmod vga insmod video_bochs insmod video_cirrus } insmod part_msdos insmod xfs set root='(/dev/sdb,msdos10)' search --no-floppy --fs-uuid --set=root d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=auto load_video insmod gfxterm fi terminal_output gfxterm insmod part_msdos insmod xfs set root='(/dev/sdb,msdos10)' search --no-floppy --fs-uuid --set=root d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa set locale_dir=($root)/boot/grub/locale set lang=ja_JP insmod gettext if [ "${recordfail}" = 1 ]; then set timeout=-1 else set timeout=10 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 2.6.38-8-generic' --class ubuntu --class gnu-linux --class gnu --class os { recordfail set gfxpayload=$linux_gfx_mode insmod part_msdos insmod xfs set root='(/dev/sdb,msdos10)' search --no-floppy --fs-uuid --set=root d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa linux /boot/vmlinuz-2.6.38-8-generic root=UUID=d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa ro quiet splash vt.handoff=7 initrd /boot/initrd.img-2.6.38-8-generic } menuentry 'Ubuntu, with Linux 2.6.38-8-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { recordfail set gfxpayload=$linux_gfx_mode insmod part_msdos insmod xfs set root='(/dev/sdb,msdos10)' search --no-floppy --fs-uuid --set=root d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa echo 'Loading Linux 2.6.38-8-generic ...' linux /boot/vmlinuz-2.6.38-8-generic root=UUID=d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa ro single echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-2.6.38-8-generic } ### END /etc/grub.d/10_linux ### ### BEGIN /etc/grub.d/20_linux_xen ### ### END /etc/grub.d/20_linux_xen ### ### BEGIN /etc/grub.d/20_memtest86+ ### menuentry "Memory test (memtest86+)" { insmod part_msdos insmod xfs set root='(/dev/sdb,msdos10)' search --no-floppy --fs-uuid --set=root d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa linux16 /boot/memtest86+.bin } menuentry "Memory test (memtest86+, serial console 115200)" { insmod part_msdos insmod xfs set root='(/dev/sdb,msdos10)' search --no-floppy --fs-uuid --set=root d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa linux16 /boot/memtest86+.bin console=ttyS0,115200n8 } ### END /etc/grub.d/20_memtest86+ ### ### BEGIN /etc/grub.d/30_os-prober ### if [ "x${timeout}" != "x-1" ]; then if keystatus; then if keystatus --shift; then set timeout=-1 else set timeout=0 fi else if sleep --interruptible 3 ; then set timeout=0 fi fi fi ### 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 ###
ん？「set root='(/dev/sdb,msdos10)'」だと？？
しょーがないので、update-grubして復旧。
root@ubuntu-server:~# update-grub Generating grub.cfg ... Found linux image: /boot/vmlinuz-2.6.38-8-generic Found initrd image: /boot/initrd.img-2.6.38-8-generic Found memtest86+ image: /boot/memtest86+.bin done root@ubuntu-server:~# cat /boot/grub/grub.cfg # # 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 $prefix/grubenv ]; then set have_grubenv=true load_env fi set default="0" if [ "${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 "${boot_once}" ]; then save_env recordfail; fi; fi } function load_video { insmod vbe insmod vga insmod video_bochs insmod video_cirrus } insmod part_msdos insmod xfs set root='(/dev/sda,msdos10)' search --no-floppy --fs-uuid --set=root d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=auto load_video insmod gfxterm fi terminal_output gfxterm insmod part_msdos insmod xfs set root='(/dev/sda,msdos10)' search --no-floppy --fs-uuid --set=root d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa set locale_dir=($root)/boot/grub/locale set lang=ja_JP insmod gettext if [ "${recordfail}" = 1 ]; then set timeout=-1 else set timeout=10 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 2.6.38-8-generic' --class ubuntu --class gnu-linux --class gnu --class os { recordfail set gfxpayload=$linux_gfx_mode insmod part_msdos insmod xfs set root='(/dev/sda,msdos10)' search --no-floppy --fs-uuid --set=root d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa linux /boot/vmlinuz-2.6.38-8-generic root=UUID=d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa ro quiet splash vt.handoff=7 initrd /boot/initrd.img-2.6.38-8-generic } menuentry 'Ubuntu, with Linux 2.6.38-8-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { recordfail set gfxpayload=$linux_gfx_mode insmod part_msdos insmod xfs set root='(/dev/sda,msdos10)' search --no-floppy --fs-uuid --set=root d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa echo 'Loading Linux 2.6.38-8-generic ...' linux /boot/vmlinuz-2.6.38-8-generic root=UUID=d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa ro single echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-2.6.38-8-generic } ### END /etc/grub.d/10_linux ### ### BEGIN /etc/grub.d/20_linux_xen ### ### END /etc/grub.d/20_linux_xen ### ### BEGIN /etc/grub.d/20_memtest86+ ### menuentry "Memory test (memtest86+)" { insmod part_msdos insmod xfs set root='(/dev/sda,msdos10)' search --no-floppy --fs-uuid --set=root d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa linux16 /boot/memtest86+.bin } menuentry "Memory test (memtest86+, serial console 115200)" { insmod part_msdos insmod xfs set root='(/dev/sda,msdos10)' search --no-floppy --fs-uuid --set=root d0e0a7ac-4154-4b6f-940a-fcb4b2720ffa linux16 /boot/memtest86+.bin console=ttyS0,115200n8 } ### END /etc/grub.d/20_memtest86+ ### ### BEGIN /etc/grub.d/30_os-prober ### if [ "x${timeout}" != "x-1" ]; then if keystatus; then if keystatus --shift; then set timeout=-1 else set timeout=0 fi else if sleep --interruptible 3 ; then set timeout=0 fi fi fi ### 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 ### root@ubuntu-server:~#
