zfs problems after rebuilding system

[Alan Somers]

On Fri, Mar 2, 2018 at 2:26 PM, tech-lists <tech-lists at zyxst.net> wrote:

> Hi, thanks for looking at this,
>
> On 02/03/2018 20:39, Alan Somers wrote:
> > This doesn't make sense.  vdevs have nothing to do with mounting.  You
> see
> > your vdevs by doing "zpool status".  What are you expecting to see that
> you
> > don't?
>
> sorry, I was confusing terms. I was expecting to see similar to output
> of zfs list from both zpools instead of just zpool0.
>
> (just rebooted the system.)
>
> OK here's zpool status:
>
> # zpool status
>   pool: zpool1
>  state: ONLINE
>   scan: scrub repaired 0 in 0h39m with 0 errors on Mon Feb  5 22:55:31 2018
> config:
>
>         NAME                    STATE     READ WRITE CKSUM
>         zpool1                  ONLINE       0     0     0
>           diskid/DISK-NA7DKXXF  ONLINE       0     0     0
>
> errors: No known data errors
>
>   pool: zpool0
>  state: ONLINE
>   scan: scrub repaired 0 in 3h46m with 0 errors on Thu Mar  1 23:01:29 2018
> config:
>
>         NAME        STATE     READ WRITE CKSUM
>         zpool0      ONLINE       0     0     0
>           raidz1-0  ONLINE       0     0     0
>             ada1    ONLINE       0     0     0
>             ada2    ONLINE       0     0     0
>             ada3    ONLINE       0     0     0
> >
> >> Confusingly, I didn't need to and don't have to do any of that for
> >> zpool0. What am I doing wrong/what am I missing? Why is zpool0
> >> automatically loading but zpool1 is not? Before ada0 (the failed disk)
> >> was replaced, both loaded on boot.
> >>
> > Please post the output of "zfs list -r -o name,mountpoint,canmount,
> mounted"
> > and also the contents of /etc/fstab.
>
> # zfs list -r -o name,mountpoint,canmount,mounted
> NAME                 MOUNTPOINT             CANMOUNT  MOUNTED
> zpool1               /zpool1                   on       no
> zpool1/compressed    /zpool1/compressed        on       no
> zpool1/important     /zpool1/important         on       no
> zpool0               /zpool0                   on      yes
> zpool0/home          /zpool0/home              on      yes
> zpool0/usr           /zpool0/usr               on      yes
> zpool0/usr/local     /zpool0/usr/local         on      yes
> zpool0/usr/oldsrc    /usr/oldsrc               on      yes
> zpool0/usr/ports     /usr/ports                on      yes
> zpool0/usr/src       /usr/src                  on      yes
> zpool0/vms           /zpool0/vms               on      yes
>
> # cat /etc/fstab
> # Device        Mountpoint      FStype          Options Dump    Pass#
> /dev/ada0s1a    /               ufs             rw      1       1
> /dev/ada0s1b    none            swap            sw      0       0
> linprocfs   /compat/linux/proc  linprocfs       rw      0       0
> tmpfs    /compat/linux/dev/shm  tmpfs   rw,mode=1777    0       0
> fdescfs         /dev/fd         fdescfs         rw,late 0       0
>
> > Also, have you set "zfs_enable=YES" in /etc/rc.conf?
>
> yes.
>
> If I run zfs mount -a, everything zfs is mounted as expected. I'm
> wondering if at bootup, when zfs mount is called (I suppose it must be
> called from somewhere), whether it needs to specify -a. I would not know
> the first place to look though.
>

The relevant code is in /etc/rc.d/zfs, and it already uses "-a".  Have you
checked if /etc/rc.d/zfs is printing any errors to the console during boot?
-Alan