download affects all the disks, so you won't need to redownload the kernel (unless, of course, you're upgrading the kernel at the same time).
Ok (I didn't know if download would only download on the root volume or all of them).
Actually, in 5.1 and later, we only download to file system disks, so you need to be careful of that. But your second volume should have a valid boot image.
Ah! That's the command I didn't find. So I suppose it removes the root bit from all the disks on the current root volume and puts it on the volume you specify.
Yep!
Thanks for your answer, Marc
Glad to be of assistance, Steve