Maybe someone can give me a short hint what to do with this problem:
root@cubie:~# apt-get install mc
W: Not using locking for read only lock file /var/lib/dpkg/lock
E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem.
root@cubie:~# dpkg --configure -a
dpkg: error: unable to access dpkg status area: Read-only file system
EDIT: Looks like SD Card is nearly dead or something :-/ :
Jan 4 23:40:15 localhost kernel: [ 1300.326224] [mmc-err] smc 0 err, cmd 18, DTO
Jan 4 23:40:15 localhost kernel: [ 1300.333891] [mmc-err] In data read operation
Jan 4 23:40:15 localhost kernel: [ 1300.343307] [mmc-msg] found data error, need to send stop command
Jan 4 23:40:15 localhost kernel: [ 1300.355359] mmcblk0: timed out sending r/w cmd command, card status 0x900
Jan 4 23:40:15 localhost kernel: [ 1300.366282] mmcblk0: not retrying timeout
Jan 4 23:40:15 localhost kernel: [ 1300.376002] end_request: I/O error, dev mmcblk0, sector 4267944
Astrofreak85 got a reaction from electric in How to upgrade/update