I've just tried to provision a new VM (via uvtools) using the latest focal kernel (5.4.0-25-generic) and it seems to boot fine with 256MB of memory. However, I haven't tried to do the release upgrade from 19.10 (I'll test this later).
If you have a way to boot into the previous kernel you can try to install the linux-kvm kernel and boot with this one, it has smaller memory footprint and it should be able to boot fine. Then, once it's booted you probably need also a swap file / swap partition to be able to do your normal activities without triggering the oom killer. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1872535 Title: Kernel panic in 5.4.0-21-generic when try to launch on system with 256 MB RAM Status in linux package in Ubuntu: Confirmed Bug description: I have VPS with 256 MB RAM. I had Ubuntu 19.10 there, but decided to upgrade to 20.04. But right after upgrade I can't load it, there's kernel panic. Old kernel from Ubuntu 19.10 loads successfully. I have Ubuntu 20.04 installed in my VirtualBox and I tried to decrease RAM to 256 MB. It gives the same kernel panic. Here's screenshot: https://i.imgur.com/dBRwBAi.png Will Ubuntu 20.04 never work on 256 MB budget VPS anymore or is it bug? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872535/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
