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environment, home: Make /tmp writable.

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Fixes <https://issues.guix.gnu.org/78272>.

Fixes a bug caused by commit ce363c1dc7,
which inadvertently made /tmp read-only as well.

* guix/scripts/environment.scm (launch-environment/container)[tmpfs]:
New variable.
Add it to ‘file-systems’.
* guix/scripts/home.scm (spawn-home-container): Add /tmp file system
to #:mounts.
* tests/guix-environment-container.sh: Add test.

Reported-by: Tomas Volf <~@wolfsden.cz>
Change-Id: I5cb449e6d0c213d4b5866cbcbd14990437a7d4c5
This commit is contained in:
Ludovic Courtès
2025-05-06 11:29:19 +02:00
parent db336991b5
commit edc799dabf
3 changed files with 19 additions and 1 deletions
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5
tests/guix-environment-container.sh
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@@ -195,6 +195,11 @@ guix environment --bootstrap --container --ad-hoc guile-bootstrap \
--writable-root \
-- guile -c '(mkdir "/whatever")'
# /tmp itself is always writable.
guix environment --bootstrap --container --ad-hoc guile-bootstrap \
-- guile -c '(mkdir "/tmp/foo")'
# Check the exit code.
abnormal_exit_code="