My Ubuntu hanged today while it was downloading, as it was unresponsive for long i shut it down forcefully . Later when i switched it on, it was not coming up so i used a live cd to fix the file system after googling for a while i executed following command
sudo fsck -t etx3 -y /dev/sda1
Everything seemed fine it ended with
FILESYSTEM WAS MODIFIED
something like that ,but then i realised my filesystem was ext4 and i passed ext3 to fsck -t option .
i was worried that i might have corrupted my entire filesystem but later when i restarted everything was working fine except for my internet connection . My system was connected to Wifi but i was not able to resolve any IP address , i tried chrome & firefox but no use . i even tried curl but it too couldn't resolve address . But my torrent client was working and downloading properly (This is y i assumed my internet connection is working) . Apart from this i don't think my system is behaving properly it freezes in between and i have to restart again.
This internet thing may be a coincidence ,but my question is did i messed up my filesystem by passing wrong option to fsck -t ,if so how can i fix it .