* base-files: add option to make /var persistent
In OpenWrt, /var is symlinked to /tmp by default. This is done to reduce
the amount of writes to the flash chip, which often have not the
greatest durability. As a result, things like DHCP or UPnP lease files,
are not persistent across reboots.
Since OpenWrt can run on devices with more durable storage, it makes
sense to have an option for a persistent /var. Add an option to make
/var persistent. When enabled, /var will no longer be symlinked to /tmp,
but /var/run will be symlink to /tmp/run, as it should contains only
files that should not be kept during reboot. The option is off by
default, to maintain the current behaviour.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
* base-files: fix option to make /var persistent
The option was initially named TARGET_ROOTFS_LN_VAR_TMP, and the check
was correct. When renaming the option to something more suitable, the
check was changed to check for n, but when an option is not set, it's
not n but empty. This results in the check always evaluating to false.
Fix the check by checking for y with ifneq.
Fixes: 57807f50ded6 ("base-files: add option to make /var persistent")
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Co-authored-by: Stijn Tintel <stijn@linux-ipv6.be>
9b519e7747