Re: Overview over my outstanding patches

[Claudius Heine <claudius.heine.ext@siemens.com>]

Hi,

On 2018-05-24 11:21, [ext] Claudius Heine wrote:
> Hi Alex,
> 
> On 2018-05-14 15:47, Alexander Smirnov wrote:
>> Remaining:
>> ==========
>>   - meta-isar/isar-image-base: added removal of qemu-*-static binaries:
>>
>> Here is the question about case, when user wants to install 
>> qemu-user-static package to target rootfs.
> 
> If the user wants to install qemu-user-static to the image, apt 
> overwrites the one already there and then the linux kernel complains 
> about infinite symlink since it wants to execute the new foreign 
> 'qemu-*-static' binary with the foreign 'qemu-*-static' binary on and on.
> 
> Installing qemu-user-static is simply forbidden until qemu-debootstrap 
> changes the deployment path and binfmt settings to avoid this conflict.

With Hennings help we further investigated this. The binfmt_misc flag 
'F' would prevent this issue [1]. So installing qemu-user-static could 
be possible if that flag is used.

I will prepare a patch that removes the qemu-*-static binaries only if 
that package is not installed.

Claudius

[1] 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/admin-guide/binfmt-misc.rst?h=v4.16#n83

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