Zfs: Unintuitive error message setting sharenfs=on

[grantwwu]

If the NFS server is not installed and you attempt to set sharenfs=on on a filesystem, you get the following unintuitive error message:

cannot share '<filesystem name>': share(1M) failed        
property may be set but unable to reshare filesystem

[jpellman]

+1

[fm365]

I encountered this problem too.

[KES777]

You have no installed required system libs:

sudo apt install nfs-kernel-server

[grantwwu]

@KES777 Yes, as I said, this happens "If the NFS server is not installed"

[foxpalace]

hihihi - what a nonsense - please check before tranfser some TBs - just waiting hours and then boom - lol

[grantwwu]

@foxpalace What?

[jpellman]

@grantwwu I think @foxpalace started a file transfer, didn't realize that an NFS mount point wasn't mounted, and then sync'd a bunch of data to a root volume instead, thus filling it up. Presumably the reason the NFS mount point wasn't mounted was due to sharenfs=on not working.

[grantwwu]

@jpellman I applaud and appreciate your translation abilities.

It's still irrelevant to this thread though; there _is_ an error message, which still ought to have given pause to the person before they did the transfer. The issue is that the error message is confusing.

[foxpalace]

yes - i didn't control the settings - therefore is my software - I transfered some TBs of Data and on the end ... böhm - your settings are wrong - all data on the second machine deleted after hours of transfer ... its like: hoooouuuu middlefinger

[jpellman]

@grantwwu It's reassuring to know that my minor in French wasn't totally useless :)

[mswezey23]

this worked for me too - sudo apt install nfs-kernel-server

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