Xen installed in a Linux distro
QubesOS
Is there a documentation regarding editing the GRUB/ISO to correct some errors in QubesOS?
Xen installed in a Linux distro
QubesOS
Is there a documentation regarding editing the GRUB/ISO to correct some errors in QubesOS?
There is Troubleshooting part of the documentation, in particular Installation troubleshooting and UEFI troubleshooting. Perhaps they could help you.