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author | Chen Qi <Qi.Chen@windriver.com> | 2014-07-23 05:40:12 -0400 |
---|---|---|
committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2014-08-02 09:26:14 +0100 |
commit | db15e2d01c48786326ee13dd09b7f2dd45f53116 (patch) | |
tree | 85aaa9c06c70204977ffd5c8624e9a93f6c98849 /meta/recipes-core/volatile-binds/files/volatile-binds.service.in | |
parent | 3b19f90bdfca520a6e00057cacb103f8a55feac6 (diff) | |
download | poky-db15e2d01c48786326ee13dd09b7f2dd45f53116.tar.gz |
volatile-binds: add recipe
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>
Diffstat (limited to 'meta/recipes-core/volatile-binds/files/volatile-binds.service.in')
-rw-r--r-- | meta/recipes-core/volatile-binds/files/volatile-binds.service.in | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/meta/recipes-core/volatile-binds/files/volatile-binds.service.in b/meta/recipes-core/volatile-binds/files/volatile-binds.service.in new file mode 100644 index 0000000000..32be5b4425 --- /dev/null +++ b/meta/recipes-core/volatile-binds/files/volatile-binds.service.in | |||
@@ -0,0 +1,19 @@ | |||
1 | [Unit] | ||
2 | Description=Bind mount volatile @where@ | ||
3 | DefaultDependencies=false | ||
4 | Before=local-fs.target | ||
5 | RequiresMountsFor=@whatparent@ @whereparent@ | ||
6 | ConditionPathIsReadWrite=@whatparent@ | ||
7 | ConditionPathExists=@where@ | ||
8 | ConditionPathIsReadWrite=!@where@ | ||
9 | |||
10 | [Service] | ||
11 | Type=oneshot | ||
12 | RemainAfterExit=Yes | ||
13 | StandardOutput=syslog | ||
14 | TimeoutSec=0 | ||
15 | ExecStart=/sbin/mount-copybind @what@ @where@ | ||
16 | ExecStop=/sbin/umount @where@ | ||
17 | |||
18 | [Install] | ||
19 | WantedBy=local-fs.target | ||