NFS Share on ZFS Pool: Cannot stat after reboot

[Nafi]

Hi

I want to use Proxmox 5.4 with cifs and nfs shares. nfs-kernel-server is already installed
A large raidz2 pool is mounted at /pool.

I created some nfs shares in /etc/export to share some subdirectories of /pool.

when nfs-kernel-server is started manually, everything works fine, but after reboot i get the following Error for every share:

Cannot stat /pool/shares/... : No such file or directory

It seems the zfs pool is not mounted at the time the nfs server is started. I already tried specifying

After=zfs-mount.service

in /etc/systemd/multi-user.target/system/nfs-server.service but even though i can confirm the nfs-server is started after zfs-mount, i still get the error messages. It also happens if i add 60s to ExecStartPre of nfs-server.service.

Am i missing something?
I dont have issues with my samba share

Thanks

 

[Stoiko Ivanov]

You could use the 'sharenfs' property of the datasets you want to export via NFS - this works quite reliably
(see `man zfs`)

Hope this helps!

 

[Nafi]

I don't use datasets. :/ Its the pool iself with directories

 

[Stoiko Ivanov]

hmm - any chance to create datasets and move the data there ? (with rsync)
(you can rename the datasets after the move)

 

[mir]

I don't use datasets. :/ Its the pool iself with directories

Try reading this: https://serverfault.com/questions/824932/why-zfs-file-system-is-not-shared-after-boot/824956

 

[Nafi]

i'll try the zfs dataset sharing. If it works fine I may be able to copy the files over.

thank you so far!

 

[Nafi]

It seems to work with zfs's share option. I'll copy over the data to datasets tonight. Thank you.

 

[timonych]

I didn't create Datase but I have success share all zfs pool over NFS and after reboot all works fine.

According to such page https://docs.oracle.com/cd/E23824_01/html/821-1448/gayne.html

I have input in terminal

zfs set share=name=pp,path=/pub,prot=nfs,sec=sys,rw=*

Spoiler: Screen

 

[blueduckdock]

For those who don't wish to use the nfs from zfs, I found this. I haven't yet tested it but I tried the same avenue as OP and it failed.

https://askubuntu.com/questions/988...epend-on-to-ensure-that-a-mountpoint-is-avail

The basic premise is to just create a new systemd service and make nfs-server wait on it. That simple service can just be something as simple as `zfs get mounted /myMountedZFSpool | grep yes` which simply responds with "yes" or "no". Not being able to grep "yes" automatically gives an exit code of 1, etc. so simple enough.

I will report back if this does work as it should be simple enough.