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b49a4696c4
If sh is not bash, some builtin command behave slightly differently. E.g. if sh is provided by busybox, its builtin test command does not check if the path is a mount point or not, and 'test -w' only checks the access mode of the inode. So, even if a readonly filesystem is mounted on a directory, the test command may succeed. To avoid such confusion, let's unconditionally use bash.
17 lines
487 B
Desktop File
17 lines
487 B
Desktop File
# SPDX-License-Identifier: LGPL-2.1-or-later
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[Unit]
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Description=Test for TemporaryFileSystem on /usr
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[Service]
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Type=oneshot
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# Check TemporaryFileSystem= are empty
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ExecStart=bash -c 'for i in $$(ls -A /usr); do test $$i = lib -o $$i = lib64 -o $$i = bin -o $$i = sbin || false; done'
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# Cannot create files under /usr
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ExecStart=bash -c '! touch /usr/hoge'
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ExecStart=bash -c '! touch /usr/bin/hoge'
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TemporaryFileSystem=/usr:ro
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BindReadOnlyPaths=-/usr/lib -/usr/lib64 /usr/bin /usr/sbin
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