Bug#755256: grub-xen: Cannot boot XZ compressed kernels

Ian Campbell ijc at hellion.org.uk
Sat Jul 19 09:31:42 UTC 2014


Package: grub-xen
Version: 2.02~beta2-10
Severity: important

Dear Maintainer,

Currently grub-xen cannot boot kernels which are configured with
CONFIG_KERNEL_XZ=y and reports "error: not xen image.". The Debian
kernels have been compiled with this option since
3.6.8-1~experimental.1.
 
Fixing this is as simple as adding an "insmod xzio" after the existing
"insmod gzio" in /etc/grub.d/10_linux. ("insmod gzio" needs to stay for
compat with Wheezy kernels)

It is possible to extract the compressed payload from an x86 bzImage and
inspect the magic numbers to determine the required decompression
algorithm, but that seems like a lot more work for a pretty small gain.

Cheers,
Ian.

-- Package-specific info:

*********************** BEGIN /proc/mounts
/dev/disk/by-uuid/c1edab93-0151-44a9-b727-6db233208284 / ext3 rw,relatime,errors=remount-ro,data=ordered 0 0
*********************** END /proc/mounts

*********************** BEGIN /boot/grub/device.map
(hd0)	/dev/xvda
*********************** 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 $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

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 {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1'  c1edab93-0151-44a9-b727-6db233208284
else
  search --no-floppy --fs-uuid --set=root c1edab93-0151-44a9-b727-6db233208284
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=en_GB
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=-1
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=menu
    set timeout=5
  # Fallback normal timeout code in case the timeout_style feature is
  # unavailable.
  else
    set timeout=5
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
}
set linux_gfx_mode=
export linux_gfx_mode
menuentry 'Debian GNU/Linux' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-c1edab93-0151-44a9-b727-6db233208284' {
	load_video
	insmod gzio
	insmod xzio
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos1'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1'  c1edab93-0151-44a9-b727-6db233208284
	else
	  search --no-floppy --fs-uuid --set=root c1edab93-0151-44a9-b727-6db233208284
	fi
	echo	'Loading Linux 3.14-1-amd64 ...'
	linux	/boot/vmlinuz-3.14-1-amd64 root=UUID=c1edab93-0151-44a9-b727-6db233208284 ro  quiet
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-3.14-1-amd64
}
submenu 'Advanced options for Debian GNU/Linux' $menuentry_id_option 'gnulinux-advanced-c1edab93-0151-44a9-b727-6db233208284' {
	menuentry 'Debian GNU/Linux, with Linux 3.14-1-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.14-1-amd64-advanced-c1edab93-0151-44a9-b727-6db233208284' {
		load_video
		insmod gzio
		insmod xzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1'  c1edab93-0151-44a9-b727-6db233208284
		else
		  search --no-floppy --fs-uuid --set=root c1edab93-0151-44a9-b727-6db233208284
		fi
		echo	'Loading Linux 3.14-1-amd64 ...'
		linux	/boot/vmlinuz-3.14-1-amd64 root=UUID=c1edab93-0151-44a9-b727-6db233208284 ro  quiet
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-3.14-1-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 3.14-1-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.14-1-amd64-recovery-c1edab93-0151-44a9-b727-6db233208284' {
		load_video
		insmod gzio
		insmod xzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1'  c1edab93-0151-44a9-b727-6db233208284
		else
		  search --no-floppy --fs-uuid --set=root c1edab93-0151-44a9-b727-6db233208284
		fi
		echo	'Loading Linux 3.14-1-amd64 ...'
		linux	/boot/vmlinuz-3.14-1-amd64 root=UUID=c1edab93-0151-44a9-b727-6db233208284 ro single 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-3.14-1-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 3.2.0-4-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.2.0-4-amd64-advanced-c1edab93-0151-44a9-b727-6db233208284' {
		load_video
		insmod gzio
		insmod xzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1'  c1edab93-0151-44a9-b727-6db233208284
		else
		  search --no-floppy --fs-uuid --set=root c1edab93-0151-44a9-b727-6db233208284
		fi
		echo	'Loading Linux 3.2.0-4-amd64 ...'
		linux	/boot/vmlinuz-3.2.0-4-amd64 root=UUID=c1edab93-0151-44a9-b727-6db233208284 ro  quiet
		echo	'Loading initial ramdisk ...'
		initrd	/boot/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 $menuentry_id_option 'gnulinux-3.2.0-4-amd64-recovery-c1edab93-0151-44a9-b727-6db233208284' {
		load_video
		insmod gzio
		insmod xzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1'  c1edab93-0151-44a9-b727-6db233208284
		else
		  search --no-floppy --fs-uuid --set=root c1edab93-0151-44a9-b727-6db233208284
		fi
		echo	'Loading Linux 3.2.0-4-amd64 ...'
		linux	/boot/vmlinuz-3.2.0-4-amd64 root=UUID=c1edab93-0151-44a9-b727-6db233208284 ro single 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-3.2.0-4-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-2.6.32-5-xen-amd64-advanced-c1edab93-0151-44a9-b727-6db233208284' {
		load_video
		insmod gzio
		insmod xzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1'  c1edab93-0151-44a9-b727-6db233208284
		else
		  search --no-floppy --fs-uuid --set=root c1edab93-0151-44a9-b727-6db233208284
		fi
		echo	'Loading Linux 2.6.32-5-xen-amd64 ...'
		linux	/boot/vmlinuz-2.6.32-5-xen-amd64 root=UUID=c1edab93-0151-44a9-b727-6db233208284 ro  quiet
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-2.6.32-5-xen-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-2.6.32-5-xen-amd64-recovery-c1edab93-0151-44a9-b727-6db233208284' {
		load_video
		insmod gzio
		insmod xzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1'  c1edab93-0151-44a9-b727-6db233208284
		else
		  search --no-floppy --fs-uuid --set=root c1edab93-0151-44a9-b727-6db233208284
		fi
		echo	'Loading Linux 2.6.32-5-xen-amd64 ...'
		linux	/boot/vmlinuz-2.6.32-5-xen-amd64 root=UUID=c1edab93-0151-44a9-b727-6db233208284 ro single 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-2.6.32-5-xen-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-2.6.32-5-amd64-advanced-c1edab93-0151-44a9-b727-6db233208284' {
		load_video
		insmod gzio
		insmod xzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1'  c1edab93-0151-44a9-b727-6db233208284
		else
		  search --no-floppy --fs-uuid --set=root c1edab93-0151-44a9-b727-6db233208284
		fi
		echo	'Loading Linux 2.6.32-5-amd64 ...'
		linux	/boot/vmlinuz-2.6.32-5-amd64 root=UUID=c1edab93-0151-44a9-b727-6db233208284 ro  quiet
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-2.6.32-5-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-2.6.32-5-amd64-recovery-c1edab93-0151-44a9-b727-6db233208284' {
		load_video
		insmod gzio
		insmod xzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1'  c1edab93-0151-44a9-b727-6db233208284
		else
		  search --no-floppy --fs-uuid --set=root c1edab93-0151-44a9-b727-6db233208284
		fi
		echo	'Loading Linux 2.6.32-5-amd64 ...'
		linux	/boot/vmlinuz-2.6.32-5-amd64 root=UUID=c1edab93-0151-44a9-b727-6db233208284 ro single 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-2.6.32-5-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/30_os-prober ###
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###

### 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  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -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
ls: cannot access /dev/disk/by-id: No such file or directory
*********************** END /dev/disk/by-id

*********************** BEGIN /dev/disk/by-uuid
total 0
lrwxrwxrwx 1 root root 11 Jul 19 09:16 c1edab93-0151-44a9-b727-6db233208284 -> ../../xvda1
lrwxrwxrwx 1 root root 11 Jul 19 09:16 e311cf84-7804-4c61-a056-7f7f9fcbd29e -> ../../xvda5
*********************** END /dev/disk/by-uuid

-- System Information:
Debian Release: 7.6
  APT prefers stable
  APT policy: (990, 'stable'), (500, 'stable-updates'), (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.14-1-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/dash

Versions of packages grub-xen depends on:
ii  debconf [debconf-2.0]  1.5.49
ii  grub-common            2.02~beta2-10
ii  grub-xen-bin           2.02~beta2-10
ii  grub2-common           2.02~beta2-10
ii  ucf                    3.0025+nmu3

grub-xen recommends no packages.

grub-xen suggests no packages.

-- debconf information:
  grub2/kfreebsd_cmdline:
  grub2/device_map_regenerated:
* grub2/linux_cmdline:
  grub2/kfreebsd_cmdline_default: quiet
* grub2/linux_cmdline_default: quiet



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