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April 20, 2015

Elementary OS freezes on loading screen after update

Hi. After updating my elementary OS Freya 64 bit using update manager it freezed on loading screen. The only thing I could see was elementary OS logo and blinking animation and nothing else happened. My hard drive seemed to be idle. When I pressed ESC or ctrl + alt + F1 on loading screen I could see this message repeating a few times: scanning for btfrs filesystems end request: i/o error, dev sr0, sector 0 and it freezed. When I tried to enter recovery mode there were some messages and this one at the end: Btfrs info (device sda8): disk space caching is enabled.
I did sudo btrfs check --repair --init-csum-tree /dev/sda8 and now when I try to boot to elementary OS my keyboard LEDs are blinking and when I go to recovery mode I see this message:
kernel offset 0x0 from ffffffff81000000 relocation range end kernel panic - not syncing: attempted to kill init! exit code=0x000000100.

Is there any way to fix my system? What caused those issues?

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