To be honest in grub rescue I can see only hd0 which leaded me to the issue 
(and qemu-6.2+ has a fix for it): 
https://bugzilla.proxmox.com/show_bug.cgi?id=3010

Can someone also test creating a Linux VM with /boot being a raid0 software MD 
device ?

Best Regards,Strahil Nikolov
 
 
  On Fri, Jan 7, 2022 at 2:15, Strahil Nikolov via Users<[email protected]> 
wrote:   Hi All,
I recently migrated from 4.3.10 to 4.4.9 and it seems that booting from 
software raid0 (I have multiple gluster volumes) is not possible with Cluster 
compatibility 4.6 .
I've tested creating a fresh VM and it also suffers the problem. Changing 
various options (virtio-scsi to virtio, chipset, VM type) did not help .
Booting from rescue media shows that the data is still there, but grub always 
drops to rescue.
Any hints are welcome.
Host: CentOS Stream 8 with qemu-6.0.0oVirt 4.4.9 (latest)VM OS: RHEL7.9/RHEL8.5
Best Regards,Strahil Nikolov_______________________________________________
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