Recently there was a linux kernel update, 5.4.0-45.
With this kernel I cannot boot into Lubuntu, it halts with a intramfs> prompt.
Today there was a linux kernel update, 5.4.0-47.
The same issue.
I have to choose 5.4.0-42 to boot into Lubuntu.
I have a notebook HP 14-0200ng (Ryzen 3) and HP EX-900 M.2 SSD PCIe NVMe.
I was thinking to make a new installation of Lubuntu 20.04. Would that solve the problem?
Also I don’t know, if a new installation only provides the latest kernel, which currently doesn’t work, or if there are a few to choose from, for example also 5.4.0-42?
But at least I thought of trying to solve the issue with a new installation, but better to ask upfront.
Today’s kernel update 5.4.0-47 came shortly after 5.4.0-45, it looks like it was ment to solve the issue with 5.4.0-45, but it doesn’t.
My Lubuntu version is (via lsb_release -a):
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.1 LTS
Release: 20.04
Codename: focal
The URL shows:
Reading package lists…
Building dependency tree…
Reading state information…
linux-generic is already the newest version (5.4.0.47.50).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
I booted with 5.4.0-42, why does it show the latest 5.4.0.47.50?
Sorry, I am using another shell and did not test it with bash. Seems, that I forgot a ; (I have edited the post to correct it, for other people in the same situation).
linux-generic is a metapackage, which points always to the latest available kernel and kernel header.
It seems, that you have installed the kernel correctly, which is normally a good sign.
You can rebuild the initramfs with
sudo update-initramfs -u -k all
If there are no errors, reboot and try it again with the latest kernel.
If it does not boot, than we should check the log files: