Ubuntu 22.04 doesn't boot with xen
kernels compressed using zstd are only supported in upstream xen 4.15 but xen-4.11 is installed in ubuntu 22.04 together with zstd compressed kernel 5.13.0-19
Either compression needs to be changed to one that is supported by xen or xen packages needs to be upgraded to 4.15 or higher.
Ubuntu 22.04 doesn't boot with xen
kernels compressed using zstd are only supported in upstream xen 4.15 but xen-4.11 is installed in ubuntu 22.04 together with zstd compressed kernel 5.13.0-19
Either compression needs to be changed to one that is supported by xen or xen packages needs to be upgraded to 4.15 or higher.