[4.5.3.2] Host kernel command line incorrectly quoted in oVirt 4.5.3.2

[amato-gianluca]

Hello.

I recently changed the kernel command line of one of my hosts using oVirt Manager (a custom kernel command line, not one obtained by choose a list of standard features). This did not work as expected. The kernel options I specify are added to the real kernel command line as an unique single-quoted string, therefore the kernel does not recognize them.

For example, this is the file /boot/loader/entries/ovirt-node-ng-4.5.3.2-0.20221028.0+1-4.18.0-408.el8.x86_64.conf which I get in one of my hosts:

title ovirt-node-ng-4.5.3.2-0.20221028.0 (4.18.0-408.el8.x86_64)
version 4.18.0-408.el8.x86_64
linux //ovirt-node-ng-4.5.3.2-0.20221028.0+1/vmlinuz-4.18.0-408.el8.x86_64
initrd //ovirt-node-ng-4.5.3.2-0.20221028.0+1/initramfs-4.18.0-408.el8.x86_64.img
options crashkernel=auto resume=/dev/mapper/onn_ovirt--clai1-swap
rd.lvm.lv=onn_ovirt-clai1/ovirt-node-ng-4.5.3.2-0.20221028.0+1
rd.lvm.lv=onn_ovirt-clai1/swap rhgb quiet intel_iommu=on
root=/dev/onn_ovirt-clai1/ovirt-node-ng-4.5.3.2-0.20221028.0+1
boot=UUID=9d44cf2a-38bb-477d-b542-4bfc30463d1f rootflags=discard
img.bootid=ovirt-node-ng-4.5.3.2-0.20221028.0+1 'modprobe.blacklist=nouveau
transparent_hugepage=never hugepagesz=1G hugepages=256 default_hugepagesz=1G'
id centos-0-4.18.0-408.el8.x86_64
grub_users $grub_users
grub_arg --unrestricted
grub_class kernel

You can see that the last part of the options is surrounded by quotes. I can later fix the problem by manually changing the files in /boot/loader/entries/, but this makes the GUI option useless.