"""last week: Pop!_OS 22.04: kernel 6.17.9-76061709 — module BTF validation cascade boots system to emergency mode #3961

Thanks for taking a look,

Quick update — I'd already recovered before seeing this comment. The path that worked: boot Pop_OS-oldkern, run sudo apt install --reinstall linux-image-6.17.9-76061709-generic linux-modules-6.17.9-76061709-generic && sudo kernelstub, reboot. 6.17.9 came up clean. The reinstall's postinst hooks ran update-initramfs automatically; /boot/initrd.img-6.17.{4,9}-* are both freshly dated 2026-05-06 (~11:44 / 11:46), and kernelstub copied them to the EFI partition. Verified: journalctl -k -b 0 | grep -iE 'btf|failed to validate' | wc -l → 0. """

  lsmod | cut -f 1 -d ' ' | grep snd | wc -l