My memory is completely full when I tried following the data recovery and copied the wrong file using command line tool Test Disk. As it was taking so long to copy, I turned it off and I realized I copied the wrong file. Now my laptop memory is now full and lead me to more problems.
I have had similar problems to :
Ubuntu boots on terminal only, how do I recover the GUI desktop?
Now my screen keeps blinking: https://www.youtube.com/watch?v=BN4twl0V8JQ
Can anybody help? Many thanks. Wish you all the best.
fsck(do a file system check), then boot it, use a tty (terminal, say ctrl+alt+f4) to login, delete the the file you didn't want - then reboot or restart gui & try logging in normally. – guiverc Nov 28 '18 at 03:08fsckbecause it detected an abnormal condition (such as abnormal shutdown the last time it booted because it was turned off) and means little. It occurs after a certain number of boots (eg. 30) just as preventative maintenance so is nothing to worry about. The 'clean' is actually good news! – guiverc Nov 28 '18 at 03:12fsckwill be easier. I suggested it as a security-measure I'd do, not that you had to do it. (if errors were there, they would be noticed & corrected). I don't know what filesystem you were using so would need more info to provide command, I'll provide https://help.ubuntu.com/community/FilesystemTroubleshooting – guiverc Nov 28 '18 at 11:39fsck(xfs_checkor whatever command matches your fs) I'd imagined you'd delete the file you didn't want to copy, and 'filled' your laptop, and hoped with luck, that you could then reboot & everything would hopefully be fine. If you still have problems, these [additional problems] would most likely be the result of your turning off whilst your drive was writing etc... – guiverc Nov 28 '18 at 11:42