PVGRUB2 does not work in Qubes 4

[dylangerdaly]

Qubes OS version (e.g., R3.2):

4RC1

Affected TemplateVMs (e.g., fedora-23, if applicable):

Any VM with a VM Managed Kernel

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Steps to reproduce the behavior:\

Install grub2-xen, set kernel to pvgrub2 and start a VM

Expected behavior:

VM Should Boot

Actual behavior:

Missing file: /var/lib/qubes/vm-kernels/pvgrub2/modules.img

General notes:

Touching modules and copying modules from another kernel does not work (libxenlight error creating domain)

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Related issues:

None

[marmarek]

pvgrub2 is works only in PV mode. VMs in Qubes 4.0 are HVM. In practice it means pvgrub2 isn't needed at all and normal grub (or other bootloader) can be used instead. To do that, set kernel property to empty value:

qvm-prefs VMNAME kernel ''

You may want to enable debug mode initially:

qvm-prefs VMNAME debug on

Yes, we need to update documentation about this.

[marmarek]

pvgrub2 is works only in PV mode. VMs in Qubes 4.0 are HVM. In practice it means pvgrub2 isn't needed at all and normal grub (or other bootloader) can be used instead. To do that, set kernel property to empty value:

qvm-prefs VMNAME kernel ''

You may want to enable debug mode initially:

qvm-prefs VMNAME debug on

Yes, we need to update documentation about this.

[dylangerdaly]

Thank you! WireGuard works swimmingly!

qvm-prefs VMNAME kernel '' fixed my issue!

[dylangerdaly]

Thank you! WireGuard works swimmingly!

qvm-prefs VMNAME kernel '' fixed my issue!