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Chen Qi
db15e2d01c
This recipe is designed to play a key role in a read-only rootfs of systemd based systems. It generates service files from a template, volatile-binds.service.in and the VOLATILE_BINDS variable. By default, VOLATILE_BINDS takes the value of "/var/volatile/lib /var/lib\n", which leads to the generation of volatile-var-lib.service file. This file doesn't have any effect in a read-write system, as it has "ConditionPathIsReadWrite = !/var/lib" in the [Unit] section. In other words, this file only has effect in a read-only rootfs. (From OE-Core rev: ed7d30dc0cdb6d6c56c50ac7a3440c4ed0ee70d3) Signed-off-by: Chen Qi <Qi.Chen@windriver.com> Signed-off-by: Saul Wold <sgw@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
20 lines
432 B
Plaintext
20 lines
432 B
Plaintext
[Unit]
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Description=Bind mount volatile @where@
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DefaultDependencies=false
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Before=local-fs.target
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RequiresMountsFor=@whatparent@ @whereparent@
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ConditionPathIsReadWrite=@whatparent@
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ConditionPathExists=@where@
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ConditionPathIsReadWrite=!@where@
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[Service]
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Type=oneshot
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RemainAfterExit=Yes
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StandardOutput=syslog
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TimeoutSec=0
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ExecStart=/sbin/mount-copybind @what@ @where@
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ExecStop=/sbin/umount @where@
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[Install]
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WantedBy=local-fs.target
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