Arch Linux

pisauraxtx

Member

Registered: 2021-05-15

Posts: 33

Real Time Kernel: systemd stuck at boot

Hello everyone.

I would like to run the linux-rt kernel on my computer, but every time I select it in GRUB, systemd gets stuck.
With linux-rt 5.11, it got to "Started Hostname Service".
With linux-rt-lts 5.10, it got to "Finished man-db regeneration."
I tried also linux-zen, which got to "Reached target Graphical Interface" and got stuck there.
The vanilla kernel 5.12.4-arch1-2 boots reliably without any problems.

I had a look at a similar issue, but my boot partition was mounted all the time during installation. The line in my fstab file reads:

# /dev/nvme0n1p1
UUID=6168-B241   /boot   vfat   rw,relatime,fmask=022,dmask=022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro   0 2

I would be very grateful if anyone could help me figure out what the problem is.

Last edited by pisauraxtx (2021-05-19 09:21:18)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,334

Re: Real Time Kernel: systemd stuck at boot

And with which kind  of system are you trying this and what exactly are you trying to boot into? A GUI? Which one? If you have a nvidia card you need to install nvidia-dkms and the linux-headers package pertaining to your kernel to have any shot at this.

In general you need to get logs and you should be able to switch to a VT and post the output of

sudo journalctl -b

or alternatively boot into a working kernel and post

journalctl -b-1

to get the log from a previous boot.

Also if your original issue from three days ago with generating GRUB entries is solved, please mark that one as [SOLVED] by editing the title in your first post of the thread.

pisauraxtx

Member

Registered: 2021-05-15

Posts: 33

Re: Real Time Kernel: systemd stuck at boot

Hello V1del, thanks for your reply. I'm going to adress the most important bit first:

If you have a nvidia card you need to install nvidia-dkms and the linux-headers package pertaining to your kernel to have any shot at this.

That solved it for me. I installed nvidia-dkms and linux-rt-lts-headers. Yay insisted upon compiling linux-rt-lts all over again, but I rebooted and it's working now. No further action needed to be taken.

Thank you very much for your help.

And with which kind  of system are you trying this and what exactly are you trying to boot into? A GUI? Which one?

I'm on a desktop computer that I want to use for audio recording using jack2. I'm using KDE Plasma as a graphical interface.

In general you need to get logs and you should be able to switch to a VT and post the output of

sudo journalctl -b

or alternatively boot into a working kernel and post

journalctl -b-1

to get the log from a previous boot.

Thanks, I will note this down for future use. I had a look at journalctl but I found it hard to find useful information in there.

Also if your original issue from three days ago with generating GRUB entries is solved, please mark that one as [SOLVED] by editing the title in your first post of the thread.

That issue is not solved, unfortunately. I had installed the OS via the archinstall command and ran into a few problems I could not solve, including being unable to edit GRUB, so I decided to re-install Arch in a more traditional way.

Edit: The issue is not solved. I tried booting with the real time kernel a second time and I was met with this screen.
No systemd journal seems to have been created.

journalctl -b-1

gives me the log for the boot process of last night, which worked.

journalctl -b

gives me the current boot using the vanilla kernel.

Last edited by pisauraxtx (2021-05-19 09:20:51)