I think this is now done, at least in edge.
$ cat systems/20191210/grubenv # GRUB Environment Block snapd_recovery_kernel=/snaps/pc-kernel_359.snap
Looks good.
I think this is now done, at least in edge.
$ cat systems/ 20191210/ grubenv kernel= /snaps/ pc-kernel_ 359.snap
# GRUB Environment Block
snapd_recovery_
Looks good.