I have a weird problem on an old Asus Zenbook UX305C where new kernels cannot be installed by grub. Specifically what happens is they appear in the boot menu fine, but if you try to boot them then the machine hangs hard with a completely black screen. Oddly the kernel installed by Anaconda can boot, but obviously this makes upgrading the kernel RPM impossible. My real question is how on earth do I start debugging this? I edited the kernel command line, removed “rhgb quiet”, added “loglevel=9 nomodeset” but still no output at all is visible before the hang. The machine doesn't have a serial port. Any ideas? Does grub have debugging that can be enabled somehow? Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v _______________________________________________ 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 on the list, report it: https://pagure.io/fedora-infrastructure
