I have ubuntu 14.04 installed on my 64Gb flash card. It is not live and I am not guest user, 100% sure. I don't remember how exactly I created it, but filesystem is ext4 and I have no swap. It worked fine until the day all saved files have been removed after regular reboot. So system behavior look like liveUSB. I can save/delete no files permanently. All new files are erased after each reboot. I had some issues with 'read-only file system' before (file system spontaneously turns to read-only), but simple reboot was enough to fix it. I have tried fsck, but I am not sure of appropriate options. Any suggestions or configuration requests are welcome. Thank you!
df output:
Filesystem 1K-blocks Used Available Use% Mounted on
udev 2012448 4 2012444 1% /dev
tmpfs 404648 1312 403336 1% /run
/dev/sda1 60793916 52100200 5589104 91% /
none 4 0 4 0% /sys/fs/cgroup
tmpfs 65536 1272 64264 2% /tmp
none 5120 0 5120 0% /run/lock
none 2023236 292 2022944 1% /run/shm
none 102400 40 102360 1% /run/user
tmpfs 10240 780 9460 8% /var/log
sudo lsblk -f output
NAME FSTYPE LABEL MOUNTPOINT
fd0
sda
└─sda1 ext4 /
sr0
sudo lsblk -m output:
NAME SIZE OWNER GROUP MODE
fd0 4K root floppy brw-rw----
sda 58,9G root disk brw-rw----
└─sda1 58,9G root disk brw-rw----
sr0 1024M root cdrom brw-rw----
sudo e2fsck -cf /dev/sdb1 output
e2fsck 1.42.9 (4-Feb-2014)
Checking for bad blocks (read-only test): 0.00% done, 0:00 elapsed. (0/0/0 err
done
/dev/sdb1: Updating bad block inode.
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/sdb1: ***** FILE SYSTEM WAS MODIFIED *****
/dev/sdb1: 662079/3866624 files (0.5% non-contiguous), 13244484/15441152 blocks
