On Tue, Dec 27, 2011 at 12:32:59AM +0100, Paolo Aglialoro wrote: > running on -current and, similar to the example, having the following > disklabel: > > /boot on both sd0a and sd1a > / on sd2a which is the raid result of sd0d and sd1d For i386 and amd64, architectures which have a two-stage boot, the second stage bootloader (/usr/mdec/boot) is installed into the RAID array. This program cannot read kernels from the array, so the kernels must be stored on one or more non-RAID FFS filesystems. In my example, I stored it on the "a" partition of two drives, wd0 and wd1.
> would the snapshot upgrade process be consistent through the standard > installer or should one always go to shell, make manual adjustments and > then run install? The installer installs kernels into the root partition. You must copy them to non-RAID partition(s) in order for the second stage bootloader to be able to load them. Using your example of a binary upgrade such as a snapshot, copy the ramdisk kernel to a non-RAID partition, boot it, conduct the upgrage, then copy the kernels to non-RAID storage, so that the second stage bootloader can find them.
