Ubuntu 18.04 LTS guest restarts when login

Discussions about using Linux guests in VirtualBox.
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pschirrer
Posts: 2
Joined: 9. Jan 2023, 11:19

Ubuntu 18.04 LTS guest restarts when login

Post by pschirrer »

Hello,
After increasing virtual disk size, my Ubuntu guest keeps restarting when trying to log in. Attached the log file.

Thanks for any pointer to solving this issue.

Regards
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mpack
Site Moderator
Posts: 39156
Joined: 4. Sep 2008, 17:09
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Mostly XP

Re: Ubuntu 18.04 LTS guest restarts when login

Post by mpack »

I don't know if this is your problem, but you can overallocate resources and expect stability. Your host has 8GB free and 4 CPU cores. So a fair share for your VM would be 4096MB RAM and 2 CPU cores.

16MB is not enough graphics RAM. Increase to 128MB. I notice that 3D acceleration is not enabled, which will limit performance. But I wouldn't do anything about that until the existing problems are confirmed fixed.

Let's see where that takes us.
pschirrer
Posts: 2
Joined: 9. Jan 2023, 11:19

Re: Ubuntu 18.04 LTS guest restarts when login

Post by pschirrer »

Hello,
Thanks for the answer, I think that the Display memory size did the trick. After 2 restarts, the VM is alive again.

Regards
mpack
Site Moderator
Posts: 39156
Joined: 4. Sep 2008, 17:09
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Mostly XP

Re: Ubuntu 18.04 LTS guest restarts when login

Post by mpack »

Thanks for reporting back. However, if you want stability then all of the changes I mentioned are required.
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