On 27/08/2020 19:51, Brandon Bergren wrote:
> FWIW, on powerpc64, using /etc/zfs/zpool.cache is great because it avoids the 
> problem of having to unmount /boot (which is an msdos filesystem because 
> peitiboot doesn't understand ufs or zfs) to update the copy of zpool.cache 
> that is on the root filesystem in /boot instead of only changing the one in 
> the runtime /boot (which was mounted on top, and is never useful because it's 
> not mounted at the time that zpool.cache is actually needed to import pools.)
> 
> In any case, the correct way on ZFS to control where the cachefile is written 
> is to set the cachefile property on the zpool to the specific path. The 
> correct behavior regarding boot time auto import of pools is to honor that 
> property as found on the pool the boot filesystem was on, so that other pools 
> sharing the same cachefile path will be imported. Multiple cache files and 
> pools not actually listed in a cachefile are valid scenarios for pools.


Just want to express my complete agreement.

-- 
Andriy Gapon
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