I tried to boot into my ubuntu machine and this error message appears. I read through dozens of previous questions about this and unfortunately no one answered with an objective step by step on how to solve the problem and boot to the system.
Edit: I was able to solve my problem reinstalling the OS without erasing data, by not setting the "format" flag in the ubuntu live usb. It doesn't get to the root of the problem, but solves the issue of how to gain access to the system and the data once again.
smartctletc) thenfsck(file system check) your ssd/hdd. If errors are detected on the fs and fixed, you'll likely find it boots normally next time. – guiverc Oct 13 '20 at 02:48fsck from util-linux 2.34 e2fsck 1.45.5 (07-Jan-2020) /dev/sda5: clean, 895897/64462848 files, 21272980/257846784 blocks
– David Moseler Oct 13 '20 at 02:50