[arch-general] file-5.14 - change in how information is read from vmlinuz?

[Chris “Kwpolska” Warrick]

On Tue, Apr 2, 2013 at 4:28 PM, Oon-Ee Ng <ngoonee.talk at gmail.com> wrote:
> Hi, I previously used the output from `file /boot/*` on the various
> vmlinuz files in /boot/* to detect what kernels were installed on a
> machine. As of file 5.14 this no longer works[1].
>
> I'm not sure what's changed, perhaps the magic.mgc file? When I copy
> the magic.mgc file from previous (5.13) version of the file package I
> get the 'expected' output[2].
>
> Not sure if this is a bug or simply a change in behaviour.
>
> [1] - /boot/vmlinuz-linux: x86 boot sector
>
> [2] - /boot/vmlinuz-linux: Linux kernel x86 boot executable bzImage,
> version 3.8.5-1-ARCH (tobias at T-POWA-LX) #1 SMP PREEMPT Fri Mar 29
> 19:18, RO-rootFS, swap_dev 0x3, Normal VGA

file -k gives better results[1].  I believe that happens because “x86
boot sector” has a higher priority or something like that in the new
version.

[1]: /boot/vmlinuz-linux: x86 boot sector\012- Linux kernel x86 boot
executable bzImage, version 3.8.5-1-ARCH (tobias at T-POWA-LX) #1 SMP
PREEMPT Fri Mar 29 19:18, RO-rootFS, swap_dev 0x3, Normal VGA PE32+
executable (EFI application) x86-64 (stripped to external PDB), for MS
Windows

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