Raphael Mankin raph@panache.demon.co.uk writes:
Second, configure *two* root partitions. That way, when you wnat to upgrade some critical components e.g. libc or binutils, you can build a new system in your spare partition and avoid any risk to your live system.
I would usually suggest using a chroot for this - no reboots required that way.
(And again: I set mail-followup-to for a reason.)