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Ubuntu won't boot [duplicate]

My laptop ran out of power and when I went to plug it in and power it on, Ubuntu no longer boots. I get directed to BusyBox built in shell that looks exactly like: BusyBox v1.27.2 (Ubuntu 1:1.27.2-...
0
votes
2answers
4k views

Can't load Ubuntu: Superblock checksum does not match superblock while trying to open /dev/sda7

I have a problem while loading into Ubuntu 17.04. This happens for the 2nd time after I booted into Windows. For the 1st time I just reinstalled the Ubuntu. I am not good at this question, so I hope ...
2
votes
1answer
684 views

mdadm + lvm2: destroyed all superblocks accidentally

I accidentally overwrote all my RAID1 superblocks with garbage. I think this happened because I ALT-CTRL-DEL booted when the Ubuntu had put me in some kind of hard disk recovery mode. My display wasn'...
3
votes
1answer
3k views

All my superblocks are corrupt!

I am having a problem with my ubuntu ext3 filesystem. I can't boot from it or mount the volume when running live CD. When I try e2fsck I get: "Bad magic number in super-block while trying to open /...