Bug#514976: update-grub cannot locate /boot on /dev/sdag1, even when device.map is correct (worked in Etch)
Chris Samuel
csamuel at vpac.org
Thu Feb 12 12:22:36 UTC 2009
Package: grub
Version: 0.97-47lenny2
Severity: important
This system has a lot of disks (35 all up) and due to the
order in which the aacraid discovers them the system disk
with the /boot partition is #33 with /boot on /dev/sdag1.
Unfortunately even after having worked around #514967 that
prevents device.map being correctly created update-grub still
cannot correctly locate the boot partition, and gives the
following error:
stg7 ~ # /usr/sbin/update-grub
Searching for GRUB installation directory ... found: /boot/grub
warning: grub-probe can't find drive for /dev/sdag1.
grub-probe: error: Cannot find a GRUB drive for /dev/sdag1. Check your
device.map.
The only way we have found to get the system to correctly
boot was during the install to disable the JBOD of the 32
drives for our software RAID arrays and post installation
we have to manually downgrade to the old Etch grub package
which works correctly as shown below:
stg7 ~ # dpkg -i ./grub_0.97-27etch1_amd64.deb
dpkg - warning: downgrading grub from 0.97-47lenny2 to 0.97-27etch1.
(Reading database ... 35348 files and directories currently installed.)
Preparing to replace grub 0.97-47lenny2 (using
./grub_0.97-27etch1_amd64.deb) ...
Unpacking replacement grub ...
Setting up grub (0.97-27etch1) ...
Processing triggers for man-db ...
stg7 ~ # update-grub
Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... found: /boot/grub/default
Testing for an existing GRUB menu.lst file ... found:
/boot/grub/menu.lst
Searching for splash image ... none found, skipping ...
Found kernel: /vmlinuz-2.6.28.4-vpac-1
Found kernel: /vmlinuz-2.6.26-1-amd64
Updating /boot/grub/menu.lst ... done
stg7 ~ #
-- Package-specific info:
*********************** BEGIN /boot/grub/device.map
(fd0) /dev/fd0
(hd0) /dev/sda
(hd1) /dev/sdb
(hd2) /dev/sdc
(hd3) /dev/sdd
(hd4) /dev/sde
(hd5) /dev/sdf
(hd6) /dev/sdg
(hd7) /dev/sdh
(hd8) /dev/sdi
(hd9) /dev/sdj
(hd10) /dev/sdk
(hd11) /dev/sdl
(hd12) /dev/sdm
(hd13) /dev/sdn
(hd14) /dev/sdo
(hd15) /dev/sdp
(hd16) /dev/sdq
(hd17) /dev/sdr
(hd18) /dev/sds
(hd19) /dev/sdt
(hd20) /dev/sdu
(hd21) /dev/sdv
(hd22) /dev/sdw
(hd23) /dev/sdx
(hd24) /dev/sdy
(hd25) /dev/sdz
(hd26) /dev/sdaa
(hd27) /dev/sdab
(hd28) /dev/sdac
(hd29) /dev/sdad
(hd30) /dev/sdae
(hd31) /dev/sdaf
(hd32) /dev/sdag
(hd33) /dev/sdah
*********************** END /boot/grub/device.map
*********************** BEGIN /proc/mounts
/dev/mapper/stg7-root / ext3 rw,errors=remount-ro,data=ordered 0 0
/dev/sdag1 /boot ext3 rw,errors=continue,data=ordered 0 0
/dev/mapper/stg7-var /var ext3 rw,errors=continue,data=ordered 0 0
/dev/md15 /nfs/user1 xfs rw,noatime,nodiratime,swalloc,attr2,nobarrier,logbufs=8,logbsize=256k,logdev=/dev/md1,sunit=128,swidth=512,usrquota,prjquota,grpquota 0 0
/dev/md25 /nfs/user2 xfs rw,noatime,nodiratime,swalloc,attr2,nobarrier,logbufs=8,logbsize=256k,logdev=/dev/md2,sunit=128,swidth=512,usrquota,prjquota,grpquota 0 0
*********************** END /proc/mounts
*********************** BEGIN /boot/grub/menu.lst
# menu.lst - 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-legacy-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.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
# WARNING: If you are using dmraid do not change this entry to 'saved' or your
# array will desync and will not let you boot your system.
default 0
## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
timeout 5
# Pretty colours
color cyan/blue white/blue
### PASSWORD LINE REMOVED ###
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line) and entries protected by the
# command 'lock'
### PASSWORD LINE REMOVED ###
### PASSWORD LINE REMOVED ###
### PASSWORD LINE REMOVED ###
#
# examples
#
# title Windows 95/98/NT/2000
# root (hd0,0)
# makeactive
# chainloader +1
#
# title Linux
# root (hd0,1)
# kernel /vmlinuz root=/dev/hda2 ro
#
#
# 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/stg7-root ro
## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,0)
## 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=quiet
## 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 menu.lst
## 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 ##
title Debian GNU/Linux, kernel 2.6.28.4-vpac-1
root (hd0,0)
kernel /vmlinuz-2.6.28.4-vpac-1 root=/dev/mapper/stg7-root ro quiet
initrd /initrd.img-2.6.28.4-vpac-1
savedefault
title Debian GNU/Linux, kernel 2.6.28.4-vpac-1 (single-user mode)
root (hd0,0)
kernel /vmlinuz-2.6.28.4-vpac-1 root=/dev/mapper/stg7-root ro single
initrd /initrd.img-2.6.28.4-vpac-1
savedefault
title Debian GNU/Linux, kernel 2.6.26-1-amd64
root (hd0,0)
kernel /vmlinuz-2.6.26-1-amd64 root=/dev/mapper/stg7-root ro quiet
initrd /initrd.img-2.6.26-1-amd64
savedefault
title Debian GNU/Linux, kernel 2.6.26-1-amd64 (single-user mode)
root (hd0,0)
kernel /vmlinuz-2.6.26-1-amd64 root=/dev/mapper/stg7-root ro single
initrd /initrd.img-2.6.26-1-amd64
savedefault
### END DEBIAN AUTOMAGIC KERNELS LIST
*********************** END /boot/grub/menu.lst
-- System Information:
Debian Release: 5.0
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.28.4-vpac-1 (SMP w/8 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages grub depends on:
ii grub-common 1.96+20080724-14 GRand Unified Bootloader, version
grub recommends no packages.
Versions of packages grub suggests:
pn grub-legacy-doc <none> (no description available)
ii mdadm 2.6.7.2-1 tool to administer Linux MD arrays
pn multiboot-doc <none> (no description available)
-- debconf-show failed
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