Is there a standard HOWTO I can follow to fix the boot process (to go from a grub / xen.cfg that fails to LUKS decrypt and load unencrypted rootfs)
Not that I know. Would be helpful, indeed.
Unfortunately the grub update for the kernel upgrade seems to have messed up the boot process. How do I figure out if it's installed for BIOS or UEFI mode ?
That is in your BIOS. If it is "legacy" it means old-school MBR, if not it should be written UEFI somewhere.
My data is safe and LUKS encrypted . I can use a live USB to decrypt it, access it and I also have made 2 backup copies.
good.
So with nothing to lose I tried to fix the boot manually from a live USB including creating /etc/default/grub but situation is no better.
I had similar problems recently. If it is UEFI (and I guess so), efibootmgr is your friend (not preinstalled on debian-live, but you grab it easily via apt-get). Also look the "UEFI troubleshooting" qubes webpage! You can re-do the qubes boot entry with efibootmgr (please read the man page, syntax is not memorisable for me). Good luck, Bernhard -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/9296d3c7-7ea1-b9f0-23ac-2153920095f9%40web.de.
