Bug#720032: grub-probe misdetects filesystem and UUID
Erich Schubert
erich at debian.org
Sat Aug 17 20:40:17 UTC 2013
Package: grub-pc
Version: 2.00-17
Severity: important
Grub since version 2.00 is unable to boot (goes to resuce prompt only).
Downgrading to 1.99-27+deb7u1 resolves the problem, so this is a regression.
I've noticed that grub seems to misdetect the filesystem and UUID:
It reports the UUID as 07D6-0A0F, and detects it as "fat":
-- grub-probe -vv
... trying various fs, but not ext2/3/4 yet ...
grub-core/kern/fs.c:55: Detecting fat...
07D6-0A0F
--
I believe this bug is another instance of #505137
but I have no idea why this wasn't a problem before.
Maybe grub previously was running the ext2/3/4 test before FAT?
hexdump -Cn 512 /dev/sda1
--
00000000 eb 63 90 00 65 6c 6c 20 38 2e 30 00 02 04 01 00 |.c..ell 8.0.....|
00000010 02 00 02 00 00 f8 5e 00 3f 00 ff 00 3f 00 00 00 |......^.?...?...|
00000020 47 78 01 00 80 00 29 0f 0a d6 07 44 65 6c 6c 55 |Gx....)....DellU|
00000030 74 69 6c 69 74 79 00 41 54 31 36 20 20 20 00 00 |tility.AT16 ..|
00000040 00 00 00 00 00 00 00 00 00 00 00 30 33 c0 8e d0 |...........03...|
00000050 bc 00 07 fc b9 80 00 8e d8 be 00 80 1d 0d 02 00 |................|
00000060 00 00 00 00 ff fa 90 90 f6 c2 80 74 05 f6 c2 70 |...........t...p|
00000070 74 02 b2 80 ea 79 7c 00 00 31 c0 8e d8 8e d0 bc |t....y|..1......|
00000080 00 20 fb a0 64 7c 3c ff 74 02 88 c2 52 be 80 7d |. ..d|<.t...R..}|
00000090 e8 17 01 be 05 7c b4 41 bb aa 55 cd 13 5a 52 72 |.....|.A..U..ZRr|
000000a0 3d 81 fb 55 aa 75 37 83 e1 01 74 32 31 c0 89 44 |=..U.u7...t21..D|
000000b0 04 40 88 44 ff 89 44 02 c7 04 10 00 66 8b 1e 5c |. at .D..D.....f..\|
000000c0 7c 66 89 5c 08 66 8b 1e 60 7c 66 89 5c 0c c7 44 ||f.\.f..`|f.\..D|
000000d0 06 00 70 b4 42 cd 13 72 05 bb 00 70 eb 76 b4 08 |..p.B..r...p.v..|
000000e0 cd 13 73 0d f6 c2 80 0f 84 d8 00 be 8b 7d e9 82 |..s..........}..|
000000f0 00 66 0f b6 c6 88 64 ff 40 66 89 44 04 0f b6 d1 |.f....d. at f.D....|
00000100 c1 e2 02 88 e8 88 f4 40 89 44 08 0f b6 c2 c0 e8 |....... at .D......|
00000110 02 66 89 04 66 a1 60 7c 66 09 c0 75 4e 66 a1 5c |.f..f.`|f..uNf.\|
00000120 7c 66 31 d2 66 f7 34 88 d1 31 d2 66 f7 74 04 3b ||f1.f.4..1.f.t.;|
00000130 44 08 7d 37 fe c1 88 c5 30 c0 c1 e8 02 08 c1 88 |D.}7....0.......|
00000140 d0 5a 88 c6 bb 00 70 8e c3 31 db b8 01 02 cd 13 |.Z....p..1......|
00000150 72 1e 8c c3 60 1e b9 00 01 8e db 31 f6 bf 00 80 |r...`......1....|
00000160 8e c6 fc f3 a5 1f 61 ff 26 5a 7c be 86 7d eb 03 |......a.&Z|..}..|
00000170 be 95 7d e8 34 00 be 9a 7d e8 2e 00 cd 18 eb fe |..}.4...}.......|
00000180 47 52 55 42 20 00 47 65 6f 6d 00 48 61 72 64 20 |GRUB .Geom.Hard |
00000190 44 69 73 6b 00 52 65 61 64 00 20 45 72 72 6f 72 |Disk.Read. Error|
000001a0 0d 0a 00 bb 01 00 b4 0e cd 10 ac 3c 00 75 f4 c3 |...........<.u..|
000001b0 00 00 00 00 00 00 00 00 00 c4 1e 48 00 cd 13 72 |...........H...r|
000001c0 a1 66 ff 06 3e 00 81 06 48 00 00 02 75 06 81 06 |.f..>...H...u...|
000001d0 4a 00 00 10 c3 44 69 73 6b 20 65 72 72 6f 72 00 |J....Disk error.|
000001e0 4e 6f 20 6c 6f 61 64 65 72 00 44 45 4c 4c 42 49 |No loader.DELLBI|
000001f0 4f 20 42 49 4e 00 00 00 00 00 00 00 00 00 55 aa |O BIN.........U.|
00000200
--
As you can see, there is some data remaining from the original Dell restore
partition that wasn't properly reset (it is a valid ext2 filesystem though)
The laptop was installed a long time ago (2004?) so I don't remember the
exact details of how I installed Debian then.
Reformatting the partition zeroed out the sector and fixes the detection.
I havn't rebooted yet, so I don't know if this resolved the overall problem
(non-bootable system). For reference, I kept a partition image, if more
information is needed / useful than above sector dump.
-- Package-specific info:
*********************** WARNING grub-setup left core.img in filesystem
*********************** BEGIN /proc/mounts
/dev/mapper/cryptroot / ext3 rw,noatime,errors=remount-ro,barrier=1,data=ordered 0 0
/dev/sda1 /boot ext2 rw,noatime,errors=continue 0 0
*********************** END /proc/mounts
*********************** BEGIN /boot/grub/device.map
(hd0) /dev/disk/by-id/ata-Hitachi_HTS721060G9SA00_MPCCN8Y3H28ZGL
(hd1) /dev/disk/by-id/usb-Generic_Flash_Disk_17033EBC-0:0
*********************** END /boot/grub/device.map
*********************** BEGIN /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 $prefix/grubenv ]; then
load_env
fi
set default="0"
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
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 load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod fat
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 07D6-0A0F
else
search --no-floppy --fs-uuid --set=root 07D6-0A0F
fi
font="/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=de_DE
insmod gettext
fi
terminal_output gfxterm
set timeout=5
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
insmod part_msdos
insmod fat
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 07D6-0A0F
else
search --no-floppy --fs-uuid --set=root 07D6-0A0F
fi
insmod png
if background_image /grub/.background_cache.png; then
set color_normal=white/black
set color_highlight=black/white
else
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
fi
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Debian GNU/Linux' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-9d4d069c-cff2-4568-bcbd-5b0a187b1dda' {
load_video
insmod gzio
insmod part_msdos
insmod fat
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 07D6-0A0F
else
search --no-floppy --fs-uuid --set=root 07D6-0A0F
fi
echo 'Linux 3.10-2-686-pae wird geladen …'
linux /vmlinuz-3.10-2-686-pae root=UUID=9d4d069c-cff2-4568-bcbd-5b0a187b1dda ro quiet
echo 'Initiale Ramdisk wird geladen …'
initrd /initrd.img-3.10-2-686-pae
}
submenu 'Erweiterte Optionen für Debian GNU/Linux' $menuentry_id_option 'gnulinux-advanced-9d4d069c-cff2-4568-bcbd-5b0a187b1dda' {
menuentry 'Debian GNU/Linux, mit Linux 3.10-2-686-pae' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.10-2-686-pae-advanced-9d4d069c-cff2-4568-bcbd-5b0a187b1dda' {
load_video
insmod gzio
insmod part_msdos
insmod fat
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 07D6-0A0F
else
search --no-floppy --fs-uuid --set=root 07D6-0A0F
fi
echo 'Linux 3.10-2-686-pae wird geladen …'
linux /vmlinuz-3.10-2-686-pae root=UUID=9d4d069c-cff2-4568-bcbd-5b0a187b1dda ro quiet
echo 'Initiale Ramdisk wird geladen …'
initrd /initrd.img-3.10-2-686-pae
}
menuentry 'Debian GNU/Linux, mit Linux 3.10-2-686-pae (Wiederherstellungsmodus)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.10-2-686-pae-recovery-9d4d069c-cff2-4568-bcbd-5b0a187b1dda' {
load_video
insmod gzio
insmod part_msdos
insmod fat
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 07D6-0A0F
else
search --no-floppy --fs-uuid --set=root 07D6-0A0F
fi
echo 'Linux 3.10-2-686-pae wird geladen …'
linux /vmlinuz-3.10-2-686-pae root=UUID=9d4d069c-cff2-4568-bcbd-5b0a187b1dda ro single
echo 'Initiale Ramdisk wird geladen …'
initrd /initrd.img-3.10-2-686-pae
}
menuentry 'Debian GNU/Linux, mit Linux 3.10-1-686-pae' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.10-1-686-pae-advanced-9d4d069c-cff2-4568-bcbd-5b0a187b1dda' {
load_video
insmod gzio
insmod part_msdos
insmod fat
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 07D6-0A0F
else
search --no-floppy --fs-uuid --set=root 07D6-0A0F
fi
echo 'Linux 3.10-1-686-pae wird geladen …'
linux /vmlinuz-3.10-1-686-pae root=UUID=9d4d069c-cff2-4568-bcbd-5b0a187b1dda ro quiet
echo 'Initiale Ramdisk wird geladen …'
initrd /initrd.img-3.10-1-686-pae
}
menuentry 'Debian GNU/Linux, mit Linux 3.10-1-686-pae (Wiederherstellungsmodus)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.10-1-686-pae-recovery-9d4d069c-cff2-4568-bcbd-5b0a187b1dda' {
load_video
insmod gzio
insmod part_msdos
insmod fat
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 07D6-0A0F
else
search --no-floppy --fs-uuid --set=root 07D6-0A0F
fi
echo 'Linux 3.10-1-686-pae wird geladen …'
linux /vmlinuz-3.10-1-686-pae root=UUID=9d4d069c-cff2-4568-bcbd-5b0a187b1dda ro single
echo 'Initiale Ramdisk wird geladen …'
initrd /initrd.img-3.10-1-686-pae
}
}
### 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 fat
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 07D6-0A0F
else
search --no-floppy --fs-uuid --set=root 07D6-0A0F
fi
linux16 /memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod fat
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 07D6-0A0F
else
search --no-floppy --fs-uuid --set=root 07D6-0A0F
fi
linux16 /memtest86+.bin console=ttyS0,115200n8
}
menuentry "Memory test (memtest86+, experimental multiboot)" {
insmod part_msdos
insmod fat
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 07D6-0A0F
else
search --no-floppy --fs-uuid --set=root 07D6-0A0F
fi
multiboot /memtest86+_multiboot.bin
}
menuentry "Memory test (memtest86+, serial console 115200, experimental multiboot)" {
insmod part_msdos
insmod fat
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 07D6-0A0F
else
search --no-floppy --fs-uuid --set=root 07D6-0A0F
fi
multiboot /memtest86+_multiboot.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/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###
### 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 ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
*********************** END /boot/grub/grub.cfg
*********************** BEGIN /proc/mdstat
cat: /proc/mdstat: No such file or directory
*********************** END /proc/mdstat
*********************** BEGIN /dev/disk/by-id
total 0
lrwxrwxrwx 1 root root 9 Aug 17 21:34 ata-HL-DT-STCD-RW_DVD-ROM_GCC-4244N -> ../../sr0
lrwxrwxrwx 1 root root 9 Aug 17 22:06 ata-Hitachi_HTS721060G9SA00_MPCCN8Y3H28ZGL -> ../../sda
lrwxrwxrwx 1 root root 10 Aug 17 21:59 ata-Hitachi_HTS721060G9SA00_MPCCN8Y3H28ZGL-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Aug 17 21:34 ata-Hitachi_HTS721060G9SA00_MPCCN8Y3H28ZGL-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Aug 17 21:34 ata-Hitachi_HTS721060G9SA00_MPCCN8Y3H28ZGL-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Aug 17 21:34 dm-name-cryptroot -> ../../dm-0
lrwxrwxrwx 1 root root 10 Aug 17 21:34 dm-name-cryptswap -> ../../dm-1
lrwxrwxrwx 1 root root 10 Aug 17 21:34 dm-uuid-CRYPT-LUKS1-6731f2b9b054446eac0c471f5b07c939-cryptroot -> ../../dm-0
lrwxrwxrwx 1 root root 10 Aug 17 21:34 dm-uuid-CRYPT-PLAIN-cryptswap -> ../../dm-1
lrwxrwxrwx 1 root root 9 Aug 17 22:06 scsi-SATA_Hitachi_HTS72106_MPCCN8Y3H28ZGL -> ../../sda
lrwxrwxrwx 1 root root 10 Aug 17 21:59 scsi-SATA_Hitachi_HTS72106_MPCCN8Y3H28ZGL-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Aug 17 21:34 scsi-SATA_Hitachi_HTS72106_MPCCN8Y3H28ZGL-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Aug 17 21:34 scsi-SATA_Hitachi_HTS72106_MPCCN8Y3H28ZGL-part3 -> ../../sda3
*********************** END /dev/disk/by-id
*********************** BEGIN /dev/disk/by-uuid
total 0
lrwxrwxrwx 1 root root 10 Aug 17 21:34 4b3f176e-2485-447f-90d5-20dfb7e1c2d2 -> ../../dm-1
lrwxrwxrwx 1 root root 10 Aug 17 21:34 6731f2b9-b054-446e-ac0c-471f5b07c939 -> ../../sda2
lrwxrwxrwx 1 root root 10 Aug 17 21:34 9d4d069c-cff2-4568-bcbd-5b0a187b1dda -> ../../dm-0
*********************** END /dev/disk/by-uuid
-- System Information:
Debian Release: jessie/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 3.10-2-686-pae (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages grub-pc depends on:
ii debconf [debconf-2.0] 1.5.50
ii grub-common 2.00-17
ii grub-pc-bin 2.00-17
ii grub2-common 2.00-17
ii ucf 3.0027+nmu1
grub-pc recommends no packages.
grub-pc suggests no packages.
-- debconf information:
grub2/kfreebsd_cmdline:
grub2/device_map_regenerated:
* grub2/linux_cmdline:
grub-pc/install_devices_empty: false
* grub-pc/install_devices_failed: true
grub-pc/chainload_from_menu.lst: true
grub-pc/kopt_extracted: false
* grub-pc/install_devices: /dev/disk/by-id/ata-Hitachi_HTS721060G9SA00_MPCCN8Y3H28ZGL, /dev/disk/by-id/ata-Hitachi_HTS721060G9SA00_MPCCN8Y3H28ZGL-part1
grub-pc/postrm_purge_boot_grub: false
grub-pc/install_devices_failed_upgrade: true
grub-pc/disk_description:
grub2/kfreebsd_cmdline_default: quiet
grub-pc/partition_description:
grub-pc/install_devices_disks_changed:
* grub2/linux_cmdline_default: quiet
grub-pc/mixed_legacy_and_grub2: true
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