Bug#706415: grub-pc: grub-probe fails to find / on a ZFS-on-Linux system
Mike Swanson
mikeonthecomputer at gmail.com
Mon Apr 29 21:59:43 UTC 2013
Package: grub-pc
Version: 1.99-27+deb7u1
Severity: normal
Dear Maintainer,
I use zfsonlinux using the repository from http://zfsonlinux.org/debian.html
and ZFS itself is contained in a LUKS volume, so it is a somewhat unusual
setup. There is an unencrypted /boot partition (ext4) that I use so that
the kernel and initramfs can be loaded simply and I unlock the disk at
the startup time. Basically the layout of the disk is (gdisk -l):
Number Start (sector) End (sector) Size Code Name
1 2048 312371200 148.9 GiB BF01 zfs
2 312371202 312581774 102.8 MiB 8300 boot
9 34 2047 1007.0 KiB EF02 BIOS boot partition
GRUB, in Debian at least, is not able to automatically create a configuration
for my setup, mainly because there is no / device listed in /etc/fstab (ZFS
on root, it manages the mountpoints itself). This results in grub-probe
erroring out, and it causes the package to be marked as being in an
unconfigured state, resulting in this:
root at philipjfry:~# dpkg --configure grub-pc
Setting up grub-pc (1.99-27+deb7u1) ...
grub-probe: error: cannot find a device for / (is /dev mounted?).
Installation finished. No error reported.
/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).
dpkg: error processing grub-pc (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
grub-pc
GRUB still works fine writing the grub.cfg by hand (it's not that hard),
and using grub-install afterwards. It's still annoying to have this
package remain in an "unconfigured" state!
-- Package-specific info:
*********************** BEGIN /proc/mounts
/dev/sda2 /boot ext4 rw,sync,nosuid,nodev,relatime,user_xattr,barrier=1 0 0
*********************** END /proc/mounts
*********************** BEGIN /boot/grub/device.map
(hd0) /dev/disk/by-id/ata-Hitachi_HTS541616J9SA00_SB2404SJJT818E
*********************** 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 $prefix/grubenv ]; then
load_env
fi
set default="0"
if [ "${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="${chosen}"
save_env saved_entry
fi
}
function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}
insmod part_gpt
insmod ext2
set root='(hd0,gpt2)'
search --no-floppy --fs-uuid --set=root e8cf781f-b835-422d-b500-77da7fbc83d6
if loadfont /grub/unicode.pf2 ; then
set gfxmode=640x480
load_video
insmod gfxterm
insmod part_gpt
insmod ext2
set root='(hd0,gpt2)'
search --no-floppy --fs-uuid --set=root e8cf781f-b835-422d-b500-77da7fbc83d6
set locale_dir=($root)/grub/locale
set lang=en_US
insmod gettext
fi
terminal_output gfxterm
set timeout=5
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
insmod part_gpt
insmod ext2
set root='(hd0,gpt2)'
search --no-floppy --fs-uuid --set=root e8cf781f-b835-422d-b500-77da7fbc83d6
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, with Linux 3.2.0-4-amd64' --class debian --class gnu-linux --class gnu --class os {
load_video
insmod gzio
insmod part_gpt
insmod ext2
set root='(hd0,gpt2)'
search --no-floppy --fs-uuid --set=root e8cf781f-b835-422d-b500-77da7fbc83d6
echo 'Loading Linux 3.2.0-4-amd64 ...'
linux /vmlinuz-3.2.0-4-amd64 ro boot=zfs rpool=philipjfry quiet splash cryptopts=target=philipjfry,source=/dev/sda1
echo 'Loading initial ramdisk ...'
initrd /initrd.img-3.2.0-4-amd64
}
menuentry 'Debian GNU/Linux, with Linux 3.2.0-4-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os {
load_video
insmod gzio
insmod part_gpt
insmod ext2
set root='(hd0,gpt2)'
search --no-floppy --fs-uuid --set=root e8cf781f-b835-422d-b500-77da7fbc83d6
echo 'Loading Linux 3.2.0-4-amd64 ...'
linux /vmlinuz-3.2.0-4-amd64 ro boot=zfs rpool=philipjfry quiet splash cryptopts=target=philipjfry,source=/dev/sda1
echo 'Loading initial ramdisk ...'
initrd /initrd.img-3.2.0-4-amd64
}
### 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_gpt
insmod ext2
set root='(hd0,gpt2)'
search --no-floppy --fs-uuid --set=root e8cf781f-b835-422d-b500-77da7fbc83d6
linux16 /memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_gpt
insmod ext2
set root='(hd0,gpt2)'
search --no-floppy --fs-uuid --set=root e8cf781f-b835-422d-b500-77da7fbc83d6
linux16 /memtest86+.bin console=ttyS0,115200n8
}
menuentry "Memory test (memtest86+, experimental multiboot)" {
insmod part_gpt
insmod ext2
set root='(hd0,gpt2)'
search --no-floppy --fs-uuid --set=root e8cf781f-b835-422d-b500-77da7fbc83d6
multiboot /memtest86+_multiboot.bin
}
menuentry "Memory test (memtest86+, serial console 115200, experimental multiboot)" {
insmod part_gpt
insmod ext2
set root='(hd0,gpt2)'
search --no-floppy --fs-uuid --set=root e8cf781f-b835-422d-b500-77da7fbc83d6
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/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 ###
*********************** END /boot/grub/grub.cfg
*********************** BEGIN /proc/mdstat
cat: /proc/mdstat: No such file or directory
*********************** END /proc/mdstat
*********************** BEGIN LVM
*********************** END LVM
*********************** BEGIN /dev/disk/by-id
total 0
lrwxrwxrwx 1 root root 9 Apr 29 14:44 ata-Hitachi_HTS541616J9SA00_SB2404SJJT818E -> ../../sda
lrwxrwxrwx 1 root root 10 Apr 29 14:18 ata-Hitachi_HTS541616J9SA00_SB2404SJJT818E-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Apr 29 14:18 ata-Hitachi_HTS541616J9SA00_SB2404SJJT818E-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Apr 29 14:18 ata-Hitachi_HTS541616J9SA00_SB2404SJJT818E-part9 -> ../../sda9
lrwxrwxrwx 1 root root 9 Apr 29 14:18 ata-Optiarc_DVD_RW_AD-7563A_30650010_1014851Q111 -> ../../sr0
lrwxrwxrwx 1 root root 10 Apr 29 14:18 dm-name-philipjfry -> ../../dm-0
lrwxrwxrwx 1 root root 10 Apr 29 14:18 dm-uuid-CRYPT-LUKS1-df5177c304e748c1b04264c81002e82f-philipjfry -> ../../dm-0
lrwxrwxrwx 1 root root 9 Apr 29 14:44 scsi-SATA_Hitachi_HTS5416_SB2404SJJT818E -> ../../sda
lrwxrwxrwx 1 root root 10 Apr 29 14:18 scsi-SATA_Hitachi_HTS5416_SB2404SJJT818E-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Apr 29 14:18 scsi-SATA_Hitachi_HTS5416_SB2404SJJT818E-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Apr 29 14:18 scsi-SATA_Hitachi_HTS5416_SB2404SJJT818E-part9 -> ../../sda9
lrwxrwxrwx 1 root root 9 Apr 29 14:50 usb-Generic-_Multi-Card_20060413092100000-0:0 -> ../../sdb
lrwxrwxrwx 1 root root 9 Apr 29 14:44 wwn-0x5000cca51fe73619 -> ../../sda
lrwxrwxrwx 1 root root 10 Apr 29 14:18 wwn-0x5000cca51fe73619-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Apr 29 14:18 wwn-0x5000cca51fe73619-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Apr 29 14:18 wwn-0x5000cca51fe73619-part9 -> ../../sda9
*********************** END /dev/disk/by-id
*********************** BEGIN /dev/disk/by-uuid
total 0
lrwxrwxrwx 1 root root 9 Apr 29 14:18 d6443f5a-e5a6-4194-b27c-9bae74251462 -> ../../zd0
lrwxrwxrwx 1 root root 10 Apr 29 14:18 df5177c3-04e7-48c1-b042-64c81002e82f -> ../../sda1
lrwxrwxrwx 1 root root 10 Apr 29 14:18 e8cf781f-b835-422d-b500-77da7fbc83d6 -> ../../sda2
*********************** END /dev/disk/by-uuid
-- System Information:
Debian Release: 7.0
APT prefers testing-updates
APT policy: (500, 'testing-updates'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.2.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages grub-pc depends on:
ii debconf [debconf-2.0] 1.5.49
ii grub-common 1.99-27+deb7u1
ii grub-pc-bin 1.99-27+deb7u1
ii grub2-common 1.99-27+deb7u1
ii ucf 3.0025+nmu3
grub-pc recommends no packages.
grub-pc suggests no packages.
-- debconf information:
grub-pc/kopt_extracted: false
grub2/kfreebsd_cmdline:
grub2/device_map_regenerated:
* grub-pc/install_devices: /dev/disk/by-id/ata-Hitachi_HTS541616J9SA00_SB2404SJJT818E
grub-pc/postrm_purge_boot_grub: false
grub-pc/install_devices_failed_upgrade: true
grub-pc/disk_description:
* grub2/linux_cmdline:
* grub-pc/install_devices_empty: true
grub2/kfreebsd_cmdline_default: quiet
grub-pc/partition_description:
grub-pc/install_devices_failed: false
grub-pc/install_devices_disks_changed:
* grub2/linux_cmdline_default: splash quiet
grub-pc/chainload_from_menu.lst: true
grub-pc/mixed_legacy_and_grub2: true
More information about the Pkg-grub-devel
mailing list