Having had the out of space in tmp message, with a zero length config.xml, hence no web gui, I copied the backup config file from /tmp/.back_conf
to the correct place.
Now however while having a nice gui back, cannot get in with the original or admin/admin passwords.
Done a reset, no go.
Tried to reset password by going in as ssh@root and resetting using passwd admin, no go.
ssh with admin@box with password admin, gets me in to the command line, but not via gui
Also, why did this file get corrupted, because df -h reported / was 100% use, replaced the config.xml, now its 6% use, no files deleted!!!
Thanks in advance for any pointers
edit fixed it, the htusers.php file was zero length also.
Still would like to know why this happened.