The following packages have been kept back: linux-image-amd64 is the error message
on 2 updates yesterday
linux-image-5.15.0-0.bpo.2-amd64 5.15.5-2~bpo11+1
Linux 5.15 for 64-bit PCs (signed)
linux-image-amd64 5.15.5-2~bpo11+1
Linux for 64-bit PCs (meta-package)
not sure what to do any ideas?