Hi Vojta

My LVM version on the hypervisor is:
udisks2-lvm2-2.9.0-7.el8.x86_64
llvm-compat-libs-12.0.1-4.module_el8.6.0+1041+0c503ac4.x86_64
lvm2-libs-2.03.14-2.el8.x86_64
lvm2-2.03.14-2.el8.x86_64
libblockdev-lvm-2.24-8.el8.x86_64

LVM on VM:
[root@nextcloud ~]# rpm -qa | grep lvm
lvm2-libs-2.03.12-10.el8.x86_64
lvm2-2.03.12-10.el8.x86_64


VM disk layout is:

[root@nextcloud ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 5G 0 disk
├─sda1 8:1 0 500M 0 part
│ └─md127 9:127 0 2G 0 raid0 /boot
└─sda2 8:2 0 4,5G 0 part
└─nextcloud--system-root 253:0 0 10G 0 lvm /
sdb 8:16 0 5G 0 disk
├─sdb1 8:17 0 500M 0 part
│ └─md127 9:127 0 2G 0 raid0 /boot
└─sdb2 8:18 0 4,5G 0 part
└─nextcloud--system-root 253:0 0 10G 0 lvm /
sdc 8:32 0 5G 0 disk
├─sdc1 8:33 0 500M 0 part
│ └─md127 9:127 0 2G 0 raid0 /boot
└─sdc2 8:34 0 4,5G 0 part
└─nextcloud--system-root 253:0 0 10G 0 lvm /
sdd 8:48 0 5G 0 disk
├─sdd1 8:49 0 500M 0 part
│ └─md127 9:127 0 2G 0 raid0 /boot
└─sdd2 8:50 0 4,5G 0 part
└─nextcloud--system-root 253:0 0 10G 0 lvm /
sde 8:64 0 1G 0 disk
└─nextcloud--db-db 253:2 0 4G 0 lvm /var/lib/mysql
sdf 8:80 0 1G 0 disk
└─nextcloud--db-db 253:2 0 4G 0 lvm /var/lib/mysql
sdg 8:96 0 1G 0 disk
└─nextcloud--db-db 253:2 0 4G 0 lvm /var/lib/mysql
sdh 8:112 0 1G 0 disk
└─nextcloud--db-db 253:2 0 4G 0 lvm /var/lib/mysql
sdi 8:128 0 300G 0 disk
└─data-slow 253:1 0 600G 0 lvm /var/www/html/nextcloud/data
sdj 8:144 0 300G 0 disk
└─data-slow 253:1 0 600G 0 lvm /var/www/html/nextcloud/data
sr0




I have managed to start my VM as follows:
1. Start the VM
2. Dump the VM xml
3. Destroy
4. Add "<boot order="X" /> to every disk entry in the dump file
5. virsh define VM.xml
6. virsh start VM


Sadly I can't set more than 1 disk as bootable in oVirt.


Best Regards,
Strahil Nikolov