Kernel panic after upgrade

Firstly, my situation is very non-standard:

  • I normally use a personal nixpkgs branch (to use a not-yet-merged pr)
  • I use secure boot via lanzaboote
  • My disks are configured via disko

When booting the initrd, I instantly got a kernel panic. It says No filesystem could mount root.

I first encountered this when upgrading to 29916453413845e54a65b8a1cf996842300cd299 on nixos-unstable.

I have bisected the issue to this nixpkgs commit: d34930e274f36c80ee3589564a80bcf3e3d8e58d, which is a merge commit.

I see that linux-firmware was updated in it

kernel panic log: pastebin

Any ideas?

Update: working after kernel update, now on 7.0.10