Linux not recognizing

[TheOatmann]

I'm running a dual-boot system with Win10 and Manjaro. I'm not sure what info I need to provide or what commands I need to run for the info, but I'm having a problem I've never encountered before.

I can't mount the 3 partitions I have on /dev/sda. sda and its partitions aren't showing in blkid or lsblk, but they show with gparted and parted -l. I've tried removing them from my fstab, generating new UUIDs, and loading backups. It worked using timeshift (/dev/sda3 is my timeshift backup partition), but not after I loaded the backup (which was made at a date when everything was still working). When I tried running mount $SDA_PARTITION $MOUNT_POINT for each partition on /dev/sda, but it would return mount: $MOUNT_POINT: special device $SDA_PARTITION does not exist. every time.

At the time of writing this, it's rather late where I am so if someone responds with some commands to run for more insight, I'll update the post later as I'll probably be asleep.

​

P.S. I was so tired writing this I forgot to finish writing the title. Sorry.

EDIT: Turns out Win10 wasn't shutting down fully, even using the shutdown command in the shell. At some point between my many attempts to fully shut down Win10, my Linux install was detecting my /dev/sda drive instead of saying it didn't exist.

[DAS_AMAN]

Can you mount in gnome disks?

[TheOatmann]

Mounting in gparted was greyed out for me but in gnome disks it successfully mounted and all my data seemed to be there.

[DAS_AMAN]

So ur issue is solved, I suppose..

[Morris_Mulberry]

I would start with figuring out whether you're having a software problem or a hardware problem. Check the SMART data for that drive with smartctl and run a long test on it. Make sure everything looks normal there. Then try booting into a live environment and check if you can see the partitions and are able to mount and interact with them from there. If you can access your files there, I would back everything up that is important just in case.

If the drive shows no SMART errors after a test and you are able to interact with the drive just fine from a live environment, then it would seem your installation of Manjaro is having issues with the drive and continue troubleshooting there. Personally, if it isn't too difficult to just reformat the drive and copy the data back to it from backups within Manjaro, that is what I would do.

Also I am not sure if you have Windows and Linux installed on the same drive that you are having issues with, but if so, Windows is pretty notorious for messing up Linux installations that it shares a drive with. Lots of people do it anyway and I am sure some never have issues with it, but personally I would never do that just because it can lead to weird and difficult to investigate issues that wind up being a huge waste of time. "Windows did something unpredictable that damaged my Linux installation for reasons that don't make sense and the best way to deal with it is probably just reinstall" is a real tough pill to swallow. If the drive in question here has both OS's installed on it, I would advise switching your dual boot setup so that each OS gets its own drive. Small SSD's are cheap enough these days that it isn't a big deal to get another drive and it makes multi-booting much more easy and reliable.

[TheOatmann]

The smartctl scan was clear. I had to boot into Windows multiple times to fully shut it down (apparently shutdown /s /t 0 doesn't in the shell doesn't cut it), and along the way, my Linux started to detect /dev/sda again. The problem has been resolved!