I recently updated the BIOS on a new Dell XPS 16 running Fedora 40. Prior to the update everything was working fine. After the update, grub displays the boot menu and indicates it is booting the default entry, then...nothing. I have performed the following tests and/or remedial actions: - attempted to downgrade the BIOS - the updated version does not allow downgrading - no change if secure boot is enabled or disabled - confirmed the boot disk (NVMe) is in AHCI mode (not RAID) - tried disabling extra C-states in BIOS - no change - BIOS has self-tests, they all pass - booting older kernels including the rescue kernel do not change the behavior (other than the grub output as to which kernel is being booted) - booting Ventoy works and lets me select other images to boot - booting a f40 netinstall ISO(via Ventoy) (the same one used to instal Fedora 40 on this laptop initially) gets as far as the "install/test/rescue" menu, but otherwise has the same boot failure - booting a f41 netinstall ISO (via Ventoy) has the same behavior as the f40 netinstall ISO - booting clonezilla (via Ventoy) gives multiple messages about trying to read or write outside of the partition - booting a Raspberry Pi x86 ISO (basically a live image) (via Ventoy) displays several boot messages before the system hangs - booting a NetBSD ISO (via Ventoy) displays several boot messages before eventually displaying a "privileged instruction fault" trap and dropping into a debugger Out of all of the above, the only thing that made me go "hmm" was the partition errors from clonezilla, so I did a test where I disabled the NVMe disk and attempted to boot off of a known, good Fedora install on a USB drive. This also failed. My theories and where they break down: - CPU issue: everything boots and works, up to a point, and the BIOS self-test passes. - RAM issue: everything boots and works, up to a point, and the BIOS self-test passes. - NVMe issue: grub boots, and if I disable the NVMe drive, the boot failures persist anyway. Any suggestions? -- _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
