as many users are running out of space ...
(the reason, because writing/changing files on /overlay/work directory (see different threads about the format of RAM, etc ...
short explaination:
if you delete/change/write files on /etc (overlay/work/etc/...), then the file system is having limits, and only DOING on modifying =>
1.) mark file as deleted (NOT remove it and restore space)
2.) write file new to partition.
and that means, after time .- you are not having space left, and you would need to do everything from scratch ...
but that is often a lot of effort (installing and configuring all packages, etc ...
example to loose a lot of space, if you update packages, then you ran out of memory very very quick.
SIMPLE SOLUTION:
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IF OVERLAY FULL:
1. BACKUP:of overlay
tar -cvpzf /tmp/overlay.tar.gz /overlay/
then copy overlay.tar.gz to local backup system or to any other host (etc winscp)
2. CLEANUP + REBOOT (then on default firmware)
/rom/sbin/jffs2reset
and cofirm with key "y"
then let it do the cleanup/reformat - and then check with cmd: "top", til the cleanup process with mtd is finish - takes up to 2-5min
then do a reboot (and it will set the config back to 192.168.1.1) via:
reboot
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when it is up, then connect via ssh / scp (eg: winscp) and:
3. RESTORE:
then copy overlay.tar.gz to local /tmp from your backup system
sysupgrade -r /tmp/overlay.tar.gz
then check with cmd: "top", til the full restore process is done with mtd stuff til the cpu is on almost 0% and not working in any other format/copy processes - takes up to 2-5min , then cmd:
reboot
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and everything is as before and you have space !!
have fun - cu Camel