kernel-packages team mailing list archive

[Scott Moser <smoser@xxxxxxxxxx>]

Public bug reported:

kexec explictly (in --help and man page) reports to support multiboot
format images.  That doesn't work for at least some subset of seemingly
proper multiboot images.  For some context, the goal essentially the
same as discussed at [1].

mbchk is from 'multiboot' package (built from source).

Also note that 'qemu-system-x86_64' loads this multiboot image properly
with 'qemu-system-x86_64 -kernel'

$ dpkg-query --show kexec-tools
kexec-tools     1:2.0.4-1ubuntu1

$ mbchk /boot/grub/i386-pc/core.img
/boot/grub/i386-pc/core.img: The Multiboot header is found at the offset 2416.
/boot/grub/i386-pc/core.img: Page alignment is turned off.
/boot/grub/i386-pc/core.img: Memory information is turned off.
/boot/grub/i386-pc/core.img: Address fields is turned on.
/boot/grub/i386-pc/core.img: All checks passed.

$ kexec --debug --type multiboot-x86 /boot/grub/i386-pc/core.img
kernel: 0x1767010 kernel_size: 6315
MEMORY RANGES
0000000000000100-000000000009f000 (0)
000000000009f000-00000000000a0000 (1)
00000000000e7000-0000000000100000 (1)
0000000000100000-00000000bf760000 (0)
00000000bf76e000-00000000bf770000 (1)
00000000bf770000-00000000bf77e000 (2)
00000000bf77e000-00000000bf7d0000 (3)
00000000bf7d0000-00000000bf7e0000 (1)
00000000bf7ec000-00000000c0000000 (1)
00000000e0000000-00000000f0000000 (1)
00000000fee00000-00000000fee01000 (1)
00000000ffc00000-0000000100000000 (1)
0000000100000000-0000000c40000000 (0)
Cannot determine the file type of /boot/grub/i386-pc/core.img


--
[1] http://comments.gmane.org/gmane.linux.ubuntu.devel.discuss/14419

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: kexec-tools 1:2.0.4-1ubuntu1
ProcVersionSignature: User Name 3.13.0-8.27-generic 3.13.2
Uname: Linux 3.13.0-8-generic x86_64
ApportVersion: 2.13.2-0ubuntu2
Architecture: amd64
Date: Tue Mar 25 14:00:01 2014
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: kexec-tools
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: kexec-tools (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug trusty uec-images

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to kexec-tools in Ubuntu.
https://bugs.launchpad.net/bugs/1297316

Title:
  kexec doesn't load multiboot images

Status in “kexec-tools” package in Ubuntu:
  New

Bug description:
  kexec explictly (in --help and man page) reports to support multiboot
  format images.  That doesn't work for at least some subset of
  seemingly proper multiboot images.  For some context, the goal
  essentially the same as discussed at [1].

  mbchk is from 'multiboot' package (built from source).

  Also note that 'qemu-system-x86_64' loads this multiboot image
  properly with 'qemu-system-x86_64 -kernel'

  $ dpkg-query --show kexec-tools
  kexec-tools     1:2.0.4-1ubuntu1

  $ mbchk /boot/grub/i386-pc/core.img
  /boot/grub/i386-pc/core.img: The Multiboot header is found at the offset 2416.
  /boot/grub/i386-pc/core.img: Page alignment is turned off.
  /boot/grub/i386-pc/core.img: Memory information is turned off.
  /boot/grub/i386-pc/core.img: Address fields is turned on.
  /boot/grub/i386-pc/core.img: All checks passed.

  $ kexec --debug --type multiboot-x86 /boot/grub/i386-pc/core.img
  kernel: 0x1767010 kernel_size: 6315
  MEMORY RANGES
  0000000000000100-000000000009f000 (0)
  000000000009f000-00000000000a0000 (1)
  00000000000e7000-0000000000100000 (1)
  0000000000100000-00000000bf760000 (0)
  00000000bf76e000-00000000bf770000 (1)
  00000000bf770000-00000000bf77e000 (2)
  00000000bf77e000-00000000bf7d0000 (3)
  00000000bf7d0000-00000000bf7e0000 (1)
  00000000bf7ec000-00000000c0000000 (1)
  00000000e0000000-00000000f0000000 (1)
  00000000fee00000-00000000fee01000 (1)
  00000000ffc00000-0000000100000000 (1)
  0000000100000000-0000000c40000000 (0)
  Cannot determine the file type of /boot/grub/i386-pc/core.img

  
  --
  [1] http://comments.gmane.org/gmane.linux.ubuntu.devel.discuss/14419

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: kexec-tools 1:2.0.4-1ubuntu1
  ProcVersionSignature: User Name 3.13.0-8.27-generic 3.13.2
  Uname: Linux 3.13.0-8-generic x86_64
  ApportVersion: 2.13.2-0ubuntu2
  Architecture: amd64
  Date: Tue Mar 25 14:00:01 2014
  ProcEnviron:
   TERM=screen
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: kexec-tools
  UpgradeStatus: No upgrade log present (probably fresh install)

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