Bug#490661: update-grub segfaults

Enrico Zini enrico at debian.org
Sun Jul 13 12:36:35 UTC 2008


Package: grub
Version: 0.97-41
Severity: grave

Hello,

thanks for maintaining grub.

Running update-grub segfaults:

  # update-grub ; echo $?
  Searching for GRUB installation directory ... found: /boot/grub
  139

(139 = 128 + 11, 11 = SIGSEGV)

This is a trace of the script:

  # sh -x `which update-grub`
  + set -e
  ++ uname -s
  ++ tr '[A-Z]' '[a-z]'
  + host_os=linux
  ++ find_grub_dir
  ++ echo -n 'Searching for GRUB installation directory ... '
  Searching for GRUB installation directory ... ++ for d in /boot/grub
  /boot/boot/grub
  ++ '[' -d /boot/grub ']'
  ++ grub_dir=/boot/grub
  ++ break
  ++ '[' -z /boot/grub ']'
  ++ echo 'found: /boot/grub'
  found: /boot/grub
  ++ echo /boot/grub
  + grub_dir=/boot/grub
  + device_map=/boot/grub/device.map
  + menu_file_basename=menu.lst
  + menu_file=/boot/grub/menu.lst
  + default_file_basename=default
  + default_file=/boot/grub/default
  ++ find_device /
  ++ test -e /boot/grub/device.map
  ++ grub-probe --device-map=/boot/grub/device.map -t device /
  + root_device=

And this is the core of the problem:

  # grub-probe --device-map=/boot/grub/device.map -t device /
  Segmentation fault

This is the /etc/fstab line related to '/':

  /dev/sda1       /               ext3    defaults,errors=remount-ro,relatime 0       1


Cheers,

Enrico


-- Package-specific info:

*********************** BEGIN /boot/grub/device.map
(hd0)	/dev/sda
*********************** END /boot/grub/device.map

*********************** BEGIN /proc/mounts
/dev/sda1 / ext3 rw,relatime,errors=remount-ro,data=ordered 0 0
/dev/sda1 /dev/.static/dev ext3 rw,errors=remount-ro,data=ordered 0 0
/dev/mapper/viaza-usr /usr ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/mapper/viaza-var /var ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/mapper/viaza-aptcache /var/cache/approx ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/mapper/home /home ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/mapper/viaza-dev /home/enrico/dev ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/mapper/viaza-store /store ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/mapper/viaza-flash /var/lib/schroot/mount/flash ext3 rw,errors=continue,data=ordered 0 0
/dev/mapper/home /var/lib/schroot/mount/flash/home ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/mapper/viaza-dev /var/lib/schroot/mount/flash/home/enrico/dev ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/sda1 /var/lib/schroot/mount/flash/tmp ext3 rw,relatime,errors=remount-ro,data=ordered 0 0
/dev/mapper/viaza-sid--4090beb3--69c5--4e2f--a2e1--e9edf2981c76 /var/lib/schroot/mount/sid-4090beb3-69c5-4e2f-a2e1-e9edf2981c76 ext3 rw,errors=continue,data=ordered 0 0
/dev/mapper/home /var/lib/schroot/mount/sid-4090beb3-69c5-4e2f-a2e1-e9edf2981c76/home ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/mapper/viaza-dev /var/lib/schroot/mount/sid-4090beb3-69c5-4e2f-a2e1-e9edf2981c76/home/enrico/dev ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/sda1 /var/lib/schroot/mount/sid-4090beb3-69c5-4e2f-a2e1-e9edf2981c76/tmp ext3 rw,relatime,errors=remount-ro,data=ordered 0 0
/dev/mapper/viaza-svk /var/lib/schroot/mount/svk ext3 rw,errors=continue,data=ordered 0 0
/dev/mapper/home /var/lib/schroot/mount/svk/home ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/mapper/viaza-dev /var/lib/schroot/mount/svk/home/enrico/dev ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/sda1 /var/lib/schroot/mount/svk/tmp ext3 rw,relatime,errors=remount-ro,data=ordered 0 0
/dev/mapper/viaza-system /var/lib/schroot/mount/system ext3 rw,errors=continue,data=ordered 0 0
/dev/mapper/home /var/lib/schroot/mount/system/home ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/mapper/viaza-dev /var/lib/schroot/mount/system/home/enrico/dev ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/sda1 /var/lib/schroot/mount/system/tmp ext3 rw,relatime,errors=remount-ro,data=ordered 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-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/sda1 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=

## 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

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

title		Debian GNU/Linux, kernel 2.6.25-1-amd64
root		(hd0,0)
kernel		/boot/vmlinuz-2.6.25-1-amd64 root=/dev/sda1 ro 
initrd		/boot/initrd.img-2.6.25-1-amd64

title		Debian GNU/Linux, kernel 2.6.25-1-amd64 (single-user mode)
root		(hd0,0)
kernel		/boot/vmlinuz-2.6.25-1-amd64 root=/dev/sda1 ro single
initrd		/boot/initrd.img-2.6.25-1-amd64

title		Debian GNU/Linux, kernel 2.6.24-1-amd64
root		(hd0,0)
kernel		/boot/vmlinuz-2.6.24-1-amd64 root=/dev/sda1 ro 
initrd		/boot/initrd.img-2.6.24-1-amd64

title		Debian GNU/Linux, kernel 2.6.24-1-amd64 (single-user mode)
root		(hd0,0)
kernel		/boot/vmlinuz-2.6.24-1-amd64 root=/dev/sda1 ro single
initrd		/boot/initrd.img-2.6.24-1-amd64

title		Debian GNU/Linux, kernel 2.6.18-4-amd64
root		(hd0,0)
kernel		/boot/vmlinuz-2.6.18-4-amd64 root=/dev/sda1 ro 
initrd		/boot/initrd.img-2.6.18-4-amd64

title		Debian GNU/Linux, kernel 2.6.18-4-amd64 (single-user mode)
root		(hd0,0)
kernel		/boot/vmlinuz-2.6.18-4-amd64 root=/dev/sda1 ro single
initrd		/boot/initrd.img-2.6.18-4-amd64

### END DEBIAN AUTOMAGIC KERNELS LIST
*********************** END /boot/grub/menu.lst

-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.25-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages grub depends on:
ii  grub-common              1.96+20080704-2 GRand Unified Bootloader, version 

grub recommends no packages.

-- no debconf information





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