mirror of
https://git.yoctoproject.org/poky
synced 2026-02-10 10:43:02 +01:00
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>
649 B
Executable File
649 B
Executable File
#!/bin/sh
Perform a bind mount, copying existing files as we do so to ensure the
overlaid path has the necessary content.
if [ $# -lt 2 ]; then echo >&2 "Usage: $0 spec mountpoint [OPTIONS]" exit 1 fi
spec=$1 mountpoint=$2
if [ $# -gt 2 ]; then options=$3 else options= fi
[ -n "$options" ] && options=",$options"
mkdir -p "${spec%/*}" if [ -d "$mountpoint" ]; then if [ ! -d "$spec" ]; then mkdir "$spec" cp -pPR "$mountpoint"/. "$spec/" fi elif [ -f "$mountpoint" ]; then if [ ! -f "$spec" ]; then cp -pP "$mountpoint" "$spec" fi fi
mount -o "bind$options" "$spec" "$mountpoint"