I'm also getting the same issue on an ASUS VivoBook K451LB (x86_64, UEFI boot). 5.3.0-19.20 is the last kernel that boots on this system, all subsequent ones fail and drop to the initramfs prompt.
Unpacking /boot/initrd.img-5.3.0-19-generic and /boot/initrd.img-5.3.0-23-generic (using unmkinitramfs) and performing a diff doesn't appear to yield much, with only one file missing (an RTC driver that was intentionally removed). However, I did notice that the kernel modules were just slightly smaller in the 5.3.0-23 initrd, and that eventually led me to this: $ modinfo '/run/shm/initrd.img-5.3.0-19-generic/main/lib/modules/5.3.0-19-generic/kernel/drivers/ata/libahci.ko' filename: /run/shm/initrd.img-5.3.0-19-generic/main/lib/modules/5.3.0-19-generic/kernel/drivers/ata/libahci.ko license: GPL description: Common AHCI SATA low-level routines author: Jeff Garzik srcversion: 20FB7D717055C5AA0AF9896 depends: retpoline: Y intree: Y name: libahci vermagic: 5.3.0-19-generic SMP mod_unload signat: PKCS#7 signer: sig_key: sig_hashalgo: md4 parm: skip_host_reset:skip global host reset (0=don't skip, 1=skip) (int) parm: ignore_sss:Ignore staggered spinup flag (0=don't ignore, 1=ignore) (int) parm: ahci_em_messages:AHCI Enclosure Management Message control (0 = off, 1 = on) (bool) parm: devslp_idle_timeout:device sleep idle timeout (int) $ modinfo '/run/shm/initrd.img-5.3.0-23-generic/main/lib/modules/5.3.0-23-generic/kernel/drivers/ata/libahci.ko' filename: /run/shm/initrd.img-5.3.0-23-generic/main/lib/modules/5.3.0-23-generic/kernel/drivers/ata/libahci.ko license: GPL description: Common AHCI SATA low-level routines author: Jeff Garzik srcversion: EF173B0C134561F058A30A9 depends: retpoline: Y intree: Y name: libahci vermagic: 5.3.0-23-generic SMP mod_unload parm: skip_host_reset:skip global host reset (0=don't skip, 1=skip) (int) parm: ignore_sss:Ignore staggered spinup flag (0=don't ignore, 1=ignore) (int) parm: ahci_em_messages:AHCI Enclosure Management Message control (0 = off, 1 = on) (bool) parm: devslp_idle_timeout:device sleep idle timeout (int) Notice that the output of modinfo for the 5.3.0-19 module contains the following lines (which are missing in the 5.3.0-23 modinfo output): signat: PKCS#7 signer: sig_key: sig_hashalgo: md4 My hypothesis is that the newer kernel modules being unsigned is the root cause behind these boot failures, since I currently have Secure Boot enabled. I'll attempt a boot with Secure Boot turned off and report back again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1852581 Title: hwe-edge kernel 5.3.0-23.25 kernel does not boot on Precision 5720 AIO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe-edge/+bug/1852581/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
