domenico/openwrt-R7800-nss
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

base-files: add option to make /var persistent

Browse Source 
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>
This commit is contained in:
Stijn Tintel
2019-02-25 15:05:07 +02:00
parent 31d984a96e
commit 57807f50de
2 changed files with 13 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
config/Config-images.in
View File

@@ -303,4 +303,12 @@ menu "Target Images"
it will be mounted by PARTUUID which makes the kernel find the
appropriate disk automatically.
config TARGET_ROOTFS_PERSIST_VAR
bool "Make /var persistent"
default n
help
Do not symlink /var to /tmp, so that its content will persist
across reboots. When enabled, /var/run will still be linked
to /tmp/run.
endmenu