OK, thanks all.

So there are two options here, both of which are to manually chown the directory to the correct 36:36 ownership.

And just to understand the side effects of not doing this, given I don't have the correct ownership on the directory, how was oVirt able to installed the HE on this share?  What will be the side effects of trying to use this share as it is?

On Wed, Mar 18, 2020 at 8:12 AM Joop <jvdwege@xs4all.nl> wrote:
On 17-3-2020 21:31, Strahil Nikolov wrote:
> On March 17, 2020 10:21:53 PM GMT+02:00, Shareef Jalloq <shareef@jalloq.co.uk> wrote:
>> Hi all,
>>
>> I'm trying to set up a hosted engine on an NFS share provided by a
>> Synology
>> NAS.  I've been reading the info and threads regarding the requirement
>> that
>> the share be owned by vdsm:kvm with uid:gid of 36:36, but this seems
>> impossible to set on modern Synology boxes.
>>
>> My understanding of DSM is that the user doesn't have control of the
>> UID
>> and GID of users.  You can ssh in and modify /etc/passwd but these
>> files
>> are auto-generated from Synology's own scripts so changes here will not
>> persist across reboots.  Is that correct?
>>
>> Secondly, having read lots of posts about permissions and various
>> issues
>> around export settings, why isn't this documented anywhere?  There just
>> seems to be lots of contradictory posts.  For example, my experience
>> has
>> been:
>>
>> - my Synology vdsm:kvm ids are 1028:65536
>> - the permissions on the NFS export are 777, anything else gives
>> permissions errors in HE setup
>> - the hosted engine install went fine with these settings.
>> - the nfs-check.py script provided to check the NFS export fails but
>> the
>> installation still completes.
>>
>> So are these issues specific to Synology or is the documentation out
>> there
>> just wrong?
>>
>> #confused
>>
>> Cheers, Shareef.
> Actually,
> I have seen users using anonuid=36,anonguid=36,all_squash  (or whatever were the anon user options) which  forces all users on the share to be mapped to nfsnobody and that user/group will have uid  of '36'.
>
>
Yes, thats the way I do it.
If you add the exports using the UI you don't get the right lines in
/etc/exports but if you enable ssh access you can edit the file and than do:
mkdir -p /volume1/ovirt/{he|data}
chown -R 36:36 /volume1/ovirt
install oVirt using the nfs path your.nas:/volume1/ovirt/he

That should work.

Greetings,

Joop
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