Bug#591222: grub-pc: grub seems not to detect disks

Mattia Dongili malattia at linux.it
Sun Aug 1 11:00:41 UTC 2010


Package: grub-pc
Version: 1.98+20100710-1
Severity: important

Hi,

I spent a couple of days trying to figure what was wrong  but I don't
seem to make any bit progress.
I have a number of symptoms that seem to point to grub not finding the
root partition where grub is installed on my HD.
1. Grub stops at "Welcome to Grub", nothing happens from there.
2. using the ata disk module I also get a nice "no device connected"
error
I just have a plain primary partition with an ext3 filesystem, the
chipset is Intel SCH.

I tried both 20100710 and 20100722, both have the same behaviour. I'm
trying to recompile 1.98-1 which seems the last one I had working
(looking at dpkg.log). Unfortunately rebuilding the package seems to
enter a loop and builds the sources over and over without ever building
the packages.

For now I'm running with grub-legacy chain-loading grub2 and I'm looking
for how to further debug the issue.

P.S.: grub-legacy's grub-install is not quite happy with that hd0,msdos1
partition, had to install that manually from grub shell.

Thanks
Mattia

-- Package-specific info:

*********************** BEGIN /proc/mounts
/dev/root / ext3 rw,relatime,errors=remount-ro,data=ordered 0 0
/dev/sda3 /home ext3 rw,relatime,errors=continue,data=ordered 0 0
*********************** END /proc/mounts

*********************** BEGIN /boot/grub/device.map
(hd0)	/dev/disk/by-id/ata-SAMSUNG_MMCRE28GFMXP-MVB_DCF4100943SE943B8181
*********************** 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_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 780abb45-b1a8-4669-9504-7dc34a2b8812
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=640x480
  load_video
  insmod gfxterm
fi
if terminal_output gfxterm ; then true ; else
  # For backward compatibility with versions of terminal.mod that don't
  # understand terminal_output
  terminal gfxterm
fi
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 780abb45-b1a8-4669-9504-7dc34a2b8812
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 780abb45-b1a8-4669-9504-7dc34a2b8812
insmod png
if background_image /boot/grub/moreblue-orbit-grub.png ; then
  set color_normal=black/black
  set color_highlight=magenta/black
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 2.6.35-rc4+' --class debian --class gnu-linux --class gnu --class os {
	insmod part_msdos
	insmod ext2
	set root='(hd0,msdos1)'
	search --no-floppy --fs-uuid --set 780abb45-b1a8-4669-9504-7dc34a2b8812
	echo	'Loading Linux 2.6.35-rc4+ ...'
	linux	/boot/vmlinuz-2.6.35-rc4+ root=UUID=780abb45-b1a8-4669-9504-7dc34a2b8812 ro mem=2000MB 
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-2.6.35-rc4+
}
menuentry 'Debian GNU/Linux, with Linux 2.6.35-rc4+.old' --class debian --class gnu-linux --class gnu --class os {
	insmod part_msdos
	insmod ext2
	set root='(hd0,msdos1)'
	search --no-floppy --fs-uuid --set 780abb45-b1a8-4669-9504-7dc34a2b8812
	echo	'Loading Linux 2.6.35-rc4+.old ...'
	linux	/boot/vmlinuz-2.6.35-rc4+.old root=UUID=780abb45-b1a8-4669-9504-7dc34a2b8812 ro mem=2000MB 
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-2.6.35-rc4+
}
menuentry 'Debian GNU/Linux, with Linux 2.6.32' --class debian --class gnu-linux --class gnu --class os {
	insmod part_msdos
	insmod ext2
	set root='(hd0,msdos1)'
	search --no-floppy --fs-uuid --set 780abb45-b1a8-4669-9504-7dc34a2b8812
	echo	'Loading Linux 2.6.32 ...'
	linux	/boot/vmlinuz-2.6.32 root=/dev/sda1 ro mem=2000MB 
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### 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

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 2.6.32 (SMP w/2 CPU cores; PREEMPT)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=ja_JP.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages grub-pc depends on:
ii  debconf [debconf-2.0]    1.5.32          Debian configuration management sy
ii  grub-common              1.98+20100710-1 GRand Unified Bootloader, version 
ii  libc6                    2.11.2-2        Embedded GNU C Library: Shared lib
ii  libdevmapper1.02.1       2:1.02.48-2     The Linux Kernel Device Mapper use
ii  ucf                      3.0025          Update Configuration File: preserv

grub-pc recommends no packages.

Versions of packages grub-pc suggests:
ii  desktop-base                  5.0.5      common files for the Debian Deskto

-- debconf information:
  grub-pc/kopt_extracted: false
  grub2/kfreebsd_cmdline:
  grub2/device_map_regenerated:
* grub-pc/install_devices: /dev/disk/by-id/ata-SAMSUNG_MMCRE28GFMXP-MVB_DCF4100943SE943B8181
  grub-pc/postrm_purge_boot_grub: false
  grub-pc/install_devices_failed_upgrade: true
  grub-pc/disk_description:
* grub2/linux_cmdline: mem=2000MB
  grub-pc/install_devices_empty: false
  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:
  grub-pc/chainload_from_menu.lst: true
  grub-pc/mixed_legacy_and_grub2: true





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