Intel microcode update definitely created same issue for me on Asus Zenbook 14 (UX433F) on 18.04.2 LTS.
Can also confirm the instructions above "add dis_ucode_ldr to the kernel command line (from GRUB if you cannot boot)" worked perfectly for temporary workaround. This is my fourth Asus, and I've been using Linux since 1997, but I can't remember struggling as much with any other machine/distro combo as with this UX433F on Ubuntu. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1829620 Title: intel-microcode on ASUS makes kernel stuck during loading initramfs on bionic-updates, bionic-security To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/intel-microcode/+bug/1829620/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs