A few days ago Ubuntu froze and I hard reboot the laptop and when I wanted to boot Ubuntu again this message showed up.
After searching a lot on the internet, I tried to boot with older kernels and also I booted Ubuntu with different grub parameters (like nomodeset), and every time I faced different kernel panic errors as you can see
(and sometimes "Fixing recursive fault but a reboot is needed"):
So I booted ubuntu via recovery mode and I saw weird behavior on the screen. By the way, I was able to enter the root shell prompt and I saw my files too. I Also copied my necessary files to a USB. But the root shell prompt was unstable and after 1 or 2 minutes same errors appeared on the screen I was no longer able to work with it and the only solution was rebooting.
After all of these, I booted from a Ubuntu bootable live USB for any chance of backing up my data and when the disk's process was completed, it was just a blank screen.
I use Ubuntu 20.04 LTS.In the grub menu there are 2 possible kernels:
5.11.0.40-generic
5.11.0.38-generic
My laptop is Acer Aspire F5-573G-793D
CPU: Intel Core i7-7500U 2.7Ghz
RAM: 8 GB DDR4
and Nvidia GeForce 940 MX with 4GB dedicated VRAM
- Is my RAM damaged or generally is there any hardware issue?
- How can I back up my data?
