We have a complex env. with root on ZFS, zones and zpools and booting
environments. I have been experiencing lots of issues (now and then) while
using the LU feature to patch OS. I usually end up fixing mountpoints, promote
lingering databsets etc.
So I am now inclined of "still" using LU to patch systems but before touching
the system, I am planning to do "zpool split rpool rpool2" to be on the safer
side! I know booting from rpool is not clean yet and gives some errors like
dump,swap,vfstab etc.. but at least you have option to failback!
I am inclined bcos one of my mates, lost major zone/zonepath (on zfs ds) while
trying to fix mountpoint / promote clone etc...
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