[OpenIndiana-discuss] Problems with some zfs fs unable to mount after shutdown

[Flemming Dalsgaard]

The commands
zfs create -omountpoint=/export            p0/export
zfs create -omountpoint=/export/home       p0/export/home
zfs create -omountpoint=/export/home/USER  p0/export/home/USER

Should be sufficient to make the /export/home/USER
so you should not pre create the involved folders, zfs take care of that it
self.

Regards
Flemming

On Thu, Jan 13, 2022 at 3:54 PM hput via openindiana-discuss <
openindiana-discuss at openindiana.org> wrote:

> I've wanted to put the home directories on a different pool than
> rpool.
>
> Ok. So, resynced the content of rpool/export/USER to directory
> /was-USER Did not create a another zfs fs just put the content at the
> new directory at /was-USER
>
> Now since the content of /export/home/USER is superfluos I did
>
> zfs destroy -r rpool/export/home/USER
> zfs destroy -r rpool/export/home
> zfs destroy -r rpool/export
>
> And followed up with rm -rf export/home/USER
> rmdir /export/home
> rmdir /export
>
> Now I create:
>
> zfs create -omountpoint=/export            p0/export
> zfs create -omountpoint=/export/home       p0/export/home
> zfs create -omountpoint=/export/home/USER  p0/export/home/USER
>
> Each one mounted itself as it was created.  I then rsynced /was-USER
> content back in place /export/home/reader/  But thought I meet keep
> the backup a while
>
> as I continued to work on other stuff that setup seemed to be working.
> But, when I shut it down and on reboot it could now mount
> p0/export/home/ or p0/export/home/USER  claiming that the directories
> were not empty
>
> ls and sure enough if you looked in /export/home  your would see USER
> too.
>
> So I thought I must be doing something I shouldn't at the point of
> creating the mountpoints.
>
> I logged into the console and tried mounting them from the bottom up
> and it seemed to go as expected.
>
> Not sure what all I did from there but at present still in console
> I can see those diretories seemingly mounted
>
> And mount|grep export
> says: mount|grep export
> /export/home on p0/export/home read/write/setuid/devices/nonbmand/exec\
> xattr.atime/dev=4c5000b on Jan 13 13:51:57 2022
>
> I can't copy/paste from that console so hand written may be errors but
> small images included below
>
>
> So I tried (and I'm logged in as root):
> touch /export/home/it
> output:
> touch: cannot create export/home/it: No such file or diretory
>
>
> So what is the error I'm making? Setting those mountpoints? . So how
> is it done correctly?
>
> Looking at oracle docs it seems that I am doing it right.  But must
> not be as it's not working
>
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