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I have installed Debian 5.0.7 with kernel version 2.6.26-2-amd64. I don't find the linux-image-dbg package inside install dvd. I need the vmlinux image of installed kernel for running crash utility.

Where do I get the vmlinux for this kernel?

Thanks, Anandan

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What crash utility are you going to run exactly? –  Warren P May 10 '11 at 20:59
    
standard crash utility. I got this from (packages.debian.org/lenny/crash) –  Anandan May 11 '11 at 5:43

1 Answer 1

It's usually in the root (the topmost folder in your unix filesystem is called the root), and the main linux kernel file is usually symbolically linked using the name /vmlinuz The z replaces the x and indicates it's compressed.

Update : I thought I might be able to extract the compressed image somehow, like this, but this doesn't work:

gunzip /vmlinuz > /tmp/vmlinux
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localhost:/# file /boot/vmlinuz-2.6.26-custom-kdump /boot/vmlinuz-2.6.26-custom-kdump: Linux kernel x86 boot executable RO-rootFS, root_dev 0x801, swap_dev 0x1, Normal VGA –  Anandan May 10 '11 at 18:38
    
How do i get the vmlinux from this vmlinuz? I want to this run crash utility. –  Anandan May 10 '11 at 18:39
    
You could try using the crash utility with this kernel image, and it will probably just work, because most unix utilities will automatically recognize and decompress the compressed kernel image. –  Warren P May 10 '11 at 20:58
    
I tried running the crash utility on this and i got this error. crash: vmlinuz-2.6.26-2-amd64: not a supported file format Also, gunzip does not work. It fails with error "not in gzip format" –  Anandan May 11 '11 at 5:39

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