Re: guix shell: error: mount: Invalid argument

[bbb ee]

I have submitted a bug report : https://issues.guix.gnu.org/issue/59425.
Tobias is right, some of my tests fail because the current path is a
mountpoint, but other tests fail because some paths of the host system
can't be mounted.

`guix shell --container coreutils -- echo Elmo` is runnable for me if I
avoid this two condition above

Le dim. 20 nov. 2022 à 10:32, bbb ee <blasforr@gmail.com> a écrit :

> I have posted in the help mailing list, because I want to be sure that the
> command doesn't run is not because of bad usage from me. Apparently, my
> usage is correct, it is from my environment.
>
> I will also post a bug report. But the difficulty to get help for this
> problem is to provide a reproducible test. I have tried to reproduce this
> issue in a guix container
> ```
> dev_1@dev_1 /mnt/recoverData$ guix shell --no-cwd --network --container
> guix
> dev_1@dev_1 ~ [env]$ guix-daemon &
> dev_1@dev_1 ~ [env]$ guix shell --container coreutils -- echo Elmo
> accepted connection from pid 3, user dev_1
> substitute: guix substitute: warning: ACL for archive imports seems to be
> uninitialized, substitutes may be unavailable
> ..
> ```
> The issue with my reproducible test is that the guix in guix container
> doesn't find any substitute, so it will compile all package, which will
> take time.
>
>
> Le dim. 20 nov. 2022 à 01:29, Maxim Cournoyer <maxim.cournoyer@gmail.com>
> a écrit :
>
>> Hi,
>>
>> Tobias Geerinckx-Rice <me@tobias.gr> writes:
>>
>>
>> [...]
>>
>> > ~ λ guix shell -C --expose=/proc=/test coreutils -- echo Elmo
>> > world
>> > guix shell: error: mount: mount "/proc" on
>> > "/tmp/guix-directory.zTa1qb//test": Invalid argument
>> >
>> >
>> > Weird!  Clearly, /proc is imbued with magical Kernel magick and
>> > simply canno— what?  Oh:
>> >
>> > ~ λ mount | grep /proc
>> > none on /proc type proc (rw,relatime)
>> > binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc
>> > (rw,relatime)
>> >
>> >
>> > Surely not…
>> >
>> > ~ λ sudo umount /proc/sys/fs/binfmt_misc
>> >
>> > ~ λ guix shell -C --expose=/proc=/test coreutils -- echo Elmo
>> > world
>> > Elmo world
>> >
>> > …huh.
>> >
>> > So, ‘guix shell --container’ apparently takes issue with rbind'ing
>> > mounts, or something like that.
>> >
>> > Maybe that's something Guix can handle by bind-mounting the entire
>> > subtree itself, or maybe it's a hard permissions error enforced by
>> > the kernel.  I don't know.
>> >
>> > Someone with podman/Docker/similar experience might.
>>
>> I'm not useful, but just want to point out that this looks a lot like
>> https://issues.guix.gnu.org/46782 (guix environment --expose options
>> cannot be layered onto $PWD).
>>
>> --
>> Thanks,
>> Maxim
>>
>