Talk:Create Alpine Linux PV DomU

I had problems booting a 32bit Alpine domU on a OracleVM 2.2.2 (64bit) host - most probably since the Alpine kernel uses PVops.

The domU kernel failed to load with the following error:

Error: (2, 'Invalid kernel', 'elf_xen_note_check: ERROR: Will only load images built for the generic loader or Linux images')

Solution is to make sure you have a 64bit ISO.

Changes: I had to ln -s /media/cdrom to /media/xvdc or setup-alpine would not find some information.

The root fs would end up in readonly mount even when it shouldn't. Reason is that the barrier test during mount fails, if some of the underlying layers do not pass barriers (i.e. older LVM/DM in dom0). You have to change the /etc/fstab of the VM *and* run tune2fs -o nobarrier on the filesystem do disable barriers (or update the dom0). The "mounting root filesystem rw" init script prints out OK during all that, I'll be opening a bug about it. Right now the bugtracker does not send out confirmation emails.

One more thing: didnt the local Xen god hack pygrub to be able to boot alpine directly? This howto still assumes we need to save kernel somewhere.