Bug#427289: grub-probe: error: unknown device when / is an encrypted LVM
Luca Capello
luca at pca.it
Sat Jun 2 22:34:12 UTC 2007
Package: grub-pc
Version: 1.95+20070520-1
Severity: important
Hello,
I installed a new lenny with yesterday daily-built netinst amd64
image and at the end d-i proposed me to install grub2 instead of
grub-legacy. The installation was OK and I rebooted into the new
lenny to upgrade it to sid:
=====
Script started on Sat 02 Jun 2007 01:01:28 AM CEST
gismo:~# apt-get dist-upgrade
Reading package lists... Done
[...]
Setting up linux-image-2.6.21-1-amd64 (2.6.21-4) ...
Running depmod.
Finding valid ramdisk creators.
Using mkinitramfs-kpkg to build the ramdisk.
Running postinst hook script /usr/sbin/update-grub.
grub-probe: error: unknown device
User postinst hook script [/usr/sbin/update-grub] exited with value 1
dpkg: error processing linux-image-2.6.21-1-amd64 (--configure):
subprocess post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of linux-image-2.6-amd64:
linux-image-2.6-amd64 depends on linux-image-2.6.21-1-amd64; however:
Package linux-image-2.6.21-1-amd64 is not configured yet.
dpkg: error processing linux-image-2.6-amd64 (--configure):
dependency problems - leaving unconfigured
Setting up grub-pc (1.95+20070520-1) ...
grub-probe: error: unknown device
dpkg: error processing grub-pc (--configure):
subprocess post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of grub2:
grub2 depends on grub-pc; however:
Package grub-pc is not configured yet.
dpkg: error processing grub2 (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
linux-image-2.6.21-1-amd64
linux-image-2.6-amd64
grub-pc
grub2
E: Sub-process /usr/bin/dpkg returned an error code (1)
gismo:~#
======
I guess the problem is linked to the fact that I've
/dev/sda1, 200M, ext3, /boot
/dev/sda2, 90G, encrypted LVM
In fact, grub-probe works with /boot, but not with /:
=====
gismo:~# grub-probe -v /boot
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda'
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda'
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda2'
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda2'
grub-probe: info: changing current directory to /dev/mapper
grub-probe: info: changing current directory to /dev
grub-probe: info: changing current directory to snd
grub-probe: info: changing current directory to net
grub-probe: info: changing current directory to loop
grub-probe: info: changing current directory to shm
grub-probe: info: changing current directory to pts
grub-probe: info: changing current directory to vggismo
grub-probe: info: changing current directory to mapper
grub-probe: info: /dev/sda1 starts from 63
grub-probe: info: opening the device hd0
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: DOS partition 0 starts from 63
grub-probe: info: opening hd0,1
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
ext2
gismo:~# grub-probe -v /
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda'
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda'
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda2'
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: opening the device `/dev/sda1'
grub-probe: info: the size of hd0 is 195371568
grub-probe: info: opening the device `/dev/sda2'
grub-probe: info: changing current directory to /dev/mapper
grub-probe: info: opening vggismo-lvroot
grub-probe: error: unknown device
gismo:~#
=====
I'm here ready to test any patch, if needed :-)
Thx, bye,
Gismo / Luca
-- Package-specific info:
*********************** BEGIN /proc/mounts
rootfs / rootfs rw 0 0
none /sys sysfs rw,nosuid,nodev,noexec 0 0
none /proc proc rw,nosuid,nodev,noexec 0 0
udev /dev tmpfs rw 0 0
/dev/mapper/vggismo-lvroot / ext3 rw,data=ordered 0 0
/dev/mapper/vggismo-lvroot /dev/.static/dev ext3 rw,data=ordered 0 0
tmpfs /lib/init/rw tmpfs rw,nosuid 0 0
varrun /var/run tmpfs rw,nosuid 0 0
usbfs /proc/bus/usb usbfs rw,nosuid,nodev,noexec 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0
devpts /dev/pts devpts rw,nosuid,noexec 0 0
/dev/sda1 /boot ext3 rw,data=ordered 0 0
/dev/mapper/vggismo-lvhome /home ext3 rw,data=ordered 0 0
/dev/mapper/vggismo-lvchroot /mnt/chroot ext3 rw,data=ordered 0 0
/dev/mapper/vggismo-lvlab /mnt/lab ext3 rw,data=ordered 0 0
/dev/mapper/vggismo-lvmovies /mnt/movies ext3 rw,data=ordered 0 0
/dev/mapper/vggismo-lvmusic /mnt/music ext3 rw,data=ordered 0 0
/dev/mapper/vggismo-lvpictures /mnt/pictures ext3 rw,data=ordered 0 0
*********************** END /proc/mounts
*********************** BEGIN /boot/grub/device.map
(hd0) /dev/sda
*********************** END /boot/grub/device.map
*********************** BEGIN /boot/grub/grub.cfg
# grub.cfg - See: grub(8), info grub, update-grub(8)
# grub-install(8), grub-floppy(8),
# grub-md5-crypt, /usr/share/doc/grub
# and /usr/share/doc/grub-doc/.
## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
set default=0
## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
set timeout=5
# Pretty colours
# FIXME: use gfxterm here?
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST
### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below
## DO NOT UNCOMMENT THEM, Just edit them to your needs
## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
## kopt_2_6_8=root=/dev/hdc1 ro
## kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=/dev/mapper/vggismo-lvroot ro vga=792
## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,1)
## should update-grub create alternative automagic boot options
## e.g. alternative=true
## alternative=false
# alternative=true
## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
## lockalternative=false
# lockalternative=false
## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=
## should update-grub lock old automagic boot options
## e.g. lockold=false
## lockold=true
# lockold=false
## Xen hypervisor options to use with the default Xen boot option
# xenhopt=
## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0
## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
## altoptions=(single-user) single
# altoptions=(single-user mode) single
## controls how many kernels should be put into the grub.cfg
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
## howmany=7
# howmany=all
## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true
## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false
## ## End Default Options ##
menuentry "Debian GNU/Linux, linux 2.6.18-4-amd64" {
set root=(hd0,1)
linux /vmlinuz-2.6.18-4-amd64 root=/dev/mapper/vggismo-lvroot ro vga=792
initrd /initrd.img-2.6.18-4-amd64
}
menuentry "Debian GNU/Linux, linux 2.6.18-4-amd64 (single-user mode)" {
set root=(hd0,1)
linux /vmlinuz-2.6.18-4-amd64 root=/dev/mapper/vggismo-lvroot ro vga=792 single
initrd /initrd.img-2.6.18-4-amd64
}
### END DEBIAN AUTOMAGIC KERNELS LIST
*********************** END /boot/grub/grub.cfg
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.18-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages grub-pc depends on:
ii libc6 2.5-9 GNU C Library: Shared libraries
ii liblzo2-2 2.02-2 data compression library
grub-pc recommends no packages.
-- no debconf information
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