Why did my file-system suddenly become corrupted and why can I not repair it?
A few months ago I built a computer to host my Minecraft server on, it ran great for months on end, but a few weeks ago it decided overnight to corrupt my file-system. I woke up to find that the drive was read-only and upon restarting it took me to GRUB Rescue and told me I had an unknown file-system. I left it for a few weeks since I haven't had time, but now I decided to finally get around to doing it. I read a bunch of websites recommending using Boot Repair, fsck, etc but nothing worked. Does anyone have any suggestions? I'm happy to provide more information if necessary and I have a Boot Repair paste-bin thing that seems to indicate I don't have an OS anymore? If possible I really really want to get the drive back intact, but I'm not sure exactly how to accomplish that.
Thanks!
EDIT:
- I have an SSD installed.
- When I first realized it was in read-only (before I restarted and got to GRUB Rescue) I tried putting in an external drive but it was unable to mount.
- I am running Ubuntu 16.04 LTS.
1 Answer
Possible reasons for corrupted data :
- Improper voltage on component, this may be voluntary (overclocking, not connecting the machine to an Uninterruptible Power Supply) or involuntary (defect in Uninterruptible Power Supply, Power Supply, voltage regulators elsewhere).
- Improper shutdown.
- Storage got above maximum temperature allowed by manufacturer.
- Writing to raw device.
- Bad sectors.
- Malicious software or script due to human or software security flaw.
You could try to repair the file system using the tool associated to said file system you chosen after making a full image backup of the drive.
If you do not have a favorite imaging tool yet, you may want to check ddrescue and dd man pages.
ddrescue may not be pre installed, use sudo apt install gddrescue ddrescueview to install it.
You can execute it from a livecd's terminal, including the installation part in case the livecd does not come with this tool pre-installed.
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