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Subject: bug#78363: Home is read-only in guix shell container
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I am not sure whether this is intended behavior, but it seems weird to
me. Inside e.g.
guix shell -Cu test coreutils
/home/test is mounted read-only and I do not see any way to make it
writable without sharing a host directory.
Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) Content-Type: text/plain; charset=utf-8 X-Loop: help-debbugs@HIDDEN From: help-debbugs@HIDDEN (GNU bug Tracking System) To: keinflue <keinflue@HIDDEN> Subject: bug#78363: Acknowledgement (Home is read-only in guix shell container) Message-ID: <handler.78363.B.174691798010084.ack <at> debbugs.gnu.org> References: <df56dcfd7fd78f50fe83429db976dc30@HIDDEN> X-Gnu-PR-Message: ack 78363 X-Gnu-PR-Package: guix Reply-To: 78363 <at> debbugs.gnu.org Date: Sat, 10 May 2025 23:00:02 +0000 Thank you for filing a new bug report with debbugs.gnu.org. This is an automatically generated reply to let you know your message has been received. Your message is being forwarded to the package maintainers and other interested parties for their attention; they will reply in due course. Your message has been sent to the package maintainer(s): bug-guix@HIDDEN If you wish to submit further information on this problem, please send it to 78363 <at> debbugs.gnu.org. Please do not send mail to help-debbugs@HIDDEN unless you wish to report a problem with the Bug-tracking system. --=20 78363: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D78363 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems
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Subject: bug#78363: Home is read-only in guix shell container
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Content preview: > I am not sure whether this is intended behavior, but it
seems weird to > me. Inside e.g. > > guix shell -Cu test coreutils > >
/home/test
is mounted read-only and I do not see any way to make it > w [...]
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Content preview: > I am not sure whether this is intended behavior, but it
seems weird to > me. Inside e.g. > > guix shell -Cu test coreutils > > /home/test
is mounted read-only and I do not see any way to make it > w [...]
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manager
> I am not sure whether this is intended behavior, but it seems weird to
> me. Inside e.g.
>
> guix shell -Cu test coreutils
>
> /home/test is mounted read-only and I do not see any way to make it
> writable without sharing a host directory.
Yes this is intentional. The root has been changed to read only
recently. See the guix news. Use --writable-root to restore the previous behavior.
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Subject: bug#78363: Home is read-only in guix shell container
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Oh ok, if that is intentionally including the home directory, then
everything is ok. I missed the --writable-root option when reading the
man page.
This can be closed then.
On 11.05.2025 13:44, Rutherther wrote:
>> I am not sure whether this is intended behavior, but it seems weird to
>> me. Inside e.g.
>>
>> guix shell -Cu test coreutils
>>
>> /home/test is mounted read-only and I do not see any way to make it
>> writable without sharing a host directory.
>
> Yes this is intentional. The root has been changed to read only
> recently. See the guix news. Use --writable-root to restore the
> previous behavior.
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Subject: bug#78363: Home is read-only in guix shell container
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--=-=-=
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Rutherther via Bug reports for GNU Guix <bug-guix@HIDDEN> writes:
>> I am not sure whether this is intended behavior, but it seems weird to=20
>> me. Inside e.g.
>>=20
>> guix shell -Cu test coreutils
>>=20
>> /home/test is mounted read-only and I do not see any way to make it=20
>> writable without sharing a host directory.
>
> Yes this is intentional. The root has been changed to read only
> recently. See the guix news. Use --writable-root to restore the previous =
behavior.
I think this is a bug, just like issues.guix.gnu.org/78272
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Subject: bug#78363: Home is read-only in guix shell container
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Hi,
keinflue <keinflue@HIDDEN> writes:
> I am not sure whether this is intended behavior, but it seems weird to
> me. Inside e.g.
>
> guix shell -Cu test coreutils
>
> /home/test is mounted read-only and I do not see any way to make it
> writable without sharing a host directory.
As noted in the =E2=80=98guix pull=E2=80=99 news, you can use =E2=80=98--wr=
itable-root=E2=80=99.
Otherwise, everything but the current directory and /tmp is read-only.
Ludo=E2=80=99.
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Subject: bug#78363: Home is read-only in guix shell container
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From: Tomas Volf <~@wolfsden.cz>
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Ludovic Court=C3=A8s <ludo@HIDDEN> writes:
> keinflue <keinflue@HIDDEN> writes:
>
>> I am not sure whether this is intended behavior, but it seems weird to
>> me. Inside e.g.
>>
>> guix shell -Cu test coreutils
>>
>> /home/test is mounted read-only and I do not see any way to make it
>> writable without sharing a host directory.
>
> As noted in the =E2=80=98guix pull=E2=80=99 news, you can use =E2=80=98--=
writable-root=E2=80=99.
> Otherwise, everything but the current directory and /tmp is read-only.
Does that make sense though? You have already made an exception for
/tmp, I would argue that ~ is another candidate for special-casing.
I think people would reasonably expect that touching a file in your own
home should work. But it does not:
--8<---------------cut here---------------start------------->8---
$ guix shell --no-cwd -C coreutils bash -- sh -c 'touch ~/foo'
touch: cannot touch '/home/user/foo': Read-only file system
--8<---------------cut here---------------end--------------->8---
Some software just fails to start in the container:
--8<---------------cut here---------------start------------->8---
$ guix shell --no-cwd -C deluge -- deluged
20:22:20 [ERROR ][deluge.common:136 ] Unable to use default config direct=
ory, exiting... ([Errno 30] Read-only file system: '/home/user/.config')
--8<---------------cut here---------------end--------------->8---
Sure, I *can* use --writable-root, but I agree that root being read-only
is a good idea. Maybe --writable-home, which would default to #t, would
be a good addition?
Tomas
--=20
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.
X-Loop: help-debbugs@HIDDEN
Subject: bug#78363: Home is read-only in guix shell container
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Hello,
Tomas Volf <~@wolfsden.cz> writes:
>> As noted in the =E2=80=98guix pull=E2=80=99 news, you can use =E2=80=98-=
-writable-root=E2=80=99.
>> Otherwise, everything but the current directory and /tmp is read-only.
>
> Does that make sense though? You have already made an exception for
> /tmp, I would argue that ~ is another candidate for special-casing.
>
> I think people would reasonably expect that touching a file in your own
> home should work. But it does not:
>
> $ guix shell --no-cwd -C coreutils bash -- sh -c 'touch ~/foo'
> touch: cannot touch '/home/user/foo': Read-only file system
>
>
> Some software just fails to start in the container:
>
> $ guix shell --no-cwd -C deluge -- deluged
> 20:22:20 [ERROR ][deluge.common:136 ] Unable to use default config dire=
ctory, exiting... ([Errno 30] Read-only file system: '/home/user/.config')
It=E2=80=99s surprising that deluged tries to write to ~/.config, but yeah,=
more
generally, I agree that many programs will want to write to ~/.cache and
the likes.
So hmm, maybe we can make another exception? It doesn=E2=80=99t hurt anyway
since it=E2=80=99s a tmpfs.
Ludo=E2=80=99.
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