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[Bug 1324544] Re: kdump-config load fails with vmlinux kernel (vs. vmlinuz)

 

Attaching debdiffs for Utopic and Trusty.

The patch fixes this issue:

	$ sudo kdump-config load
	Cannot open `/boot/vmlinuz-3.16.0-14-generic': No such file or directory
	 * failed to load kdump kernel

Test OK on Utopic:

	$ sudo kdump-config load
	Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.16.0-14-generic root=UUID=780a7cc8-faf1-4613-bc3b-9b9fda9f0862 ro quiet splash vt.handoff=7 irqpoll maxcpus=1 nousb elfcorehdr=154688K 
	segment[0].mem:0x8000000 memsz:24117248
	segment[1].mem:0x9700000 memsz:65536
	segment[2].mem:0x9710000 memsz:65536
	segment[3].mem:0x9720000 memsz:65536
	segment[4].mem:0x9730000 memsz:21692416
	segment[5].mem:0xfff0000 memsz:65536
	 * loaded kdump kernel

	$ sudo kdump-config test | grep -A1 'kdump kernel:'
	kdump kernel:
	   /boot/vmlinux-3.16.0-14-generic

	$ sudo kdump-config status
	current state   : ready to kdump


Test OK on Trusty:

	$ sudo kdump-config load
	Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.13.0-35-generic root=UUID=742d5ea0-2a70-4a5a-a8eb-7215d36a4caa ro quiet splash vt.handoff=7 irqpoll maxcpus=1 nousb elfcorehdr=157440K 
	segment[0].mem:0x8000000 memsz:26935296
	segment[1].mem:0x99b0000 memsz:65536
	segment[2].mem:0x99c0000 memsz:65536
	segment[3].mem:0x99d0000 memsz:65536
	segment[4].mem:0x99e0000 memsz:20054016
	segment[5].mem:0xfff0000 memsz:65536
	 * loaded kdump kernel

	$ sudo kdump-config test | grep -A1 'kdump kernel:'
	kdump kernel:
	   /boot/vmlinux-3.13.0-35-generic

	$ sudo kdump-config status
	current state   : ready to kdump

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https://bugs.launchpad.net/bugs/1324544

Title:
  kdump-config load fails with vmlinux kernel (vs. vmlinuz)

Status in “makedumpfile” package in Ubuntu:
  New

Bug description:
  On ppc64el, there's no vmlinu/z/, only vmlinu/x/.

  Thus, kdump-config load fails as follows:

  # kdump-config load
  Cannot open `/boot/vmlinuz-3.13.0-27-generic': No such file or directory
   * failed to load kdump kernel

  This small patch (attached) fixes the issue.
  It defaults KDUMP_KERNEL to vmlinux if vmlinuz is not found.

  # cd /usr/sbin && patch -p1 < ~/kdump-config-vmlinux.patch
  patching file kdump-config

  # kdump-config load
  [...]
   * loaded kdump kernel

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References