Score:1

Stuck in a restart loop after fresh Ubuntu 20.04.3 LTS installation

ma flag

I'm stuck in a restart loop after installing Ubuntu. I tried everything I could but it didn't help. I also tried reinstalling.

After restarting the screen flickers once displaying:

[136.270728] sd-umoun[5824]: Failed to unmount /oldroot: Device or resource busy
[136.271541] sd-umoun[5825]: Failed to unmount /oldroot/dev/pts: Device or resource busy
[136.272356] sd-umoun[5826]: Failed to unmount /oldroot/dev: Device or resource busy
[136.274237] shutdown[1]: Could not detach loopback /dev/loop0: Device or resource busy
[136.275094] shutdown[1]: Failed to finalize file systems, loop devices, ignoring

Failed to unmount

Then it displays Reset System in the corner and starts to loop.

Device:

  • Lenovo ideapad slim 1
  • RAM 4gb
  • 250 gb ssd
  • intel N4020 1.1GHz
  • Windows 10 Home preinstalled
Kole Frogen avatar
ma flag
I'm a newbie and i followed the exact steps for installation from ubuntu official website.
in flag
Have you seen [this answer](https://askubuntu.com/a/1278795/1222991) regarding a similar problem?
abu-ahmed al-khatiri avatar
in flag
i've same laptop with celeron. did you try to change to UEFI boot?
MrParrot avatar
id flag
This may not help, but when I personally installed Ubuntu, I enabled UEFI, and chose the UEFI option on the boot menu.
Kole Frogen avatar
ma flag
yeah i did. I also tried legacy support.
Kole Frogen avatar
ma flag
i have seen these warnings during installation [https://askubuntu.com/questions/832524/possible-missing-frmware-lib-firmware-i915] will this be the problem?
mangohost

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