I'm also seeing the "cannot write user data" message every 6 minutes. Any updates on this issue?
I was feeling smug not getting this error... until tonight LOL. Something to do with my USB thumb drive?
root@MiOS_30013035:~# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 4.5M 4.5M 0 100% /rom
tmpfs 62.2M 1.9M 60.3M 3% /tmp
tmpfs 512.0K 0 512.0K 0% /dev
/dev/mtdblock7 11.0M 8.0M 3.0M 73% /overlay
overlayfs:/overlay 11.0M 8.0M 3.0M 73% /
/dev/sda1 506.2M 38.4M 442.0M 8% /tmp/log/cmh
/dev/mtdblock8 4.1M 4.1M 0 100% /mios