How to process files from a different computer?

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I’ve retried with an ext4 drive with no luck. The only thing different I’ve done from the guide is that instead of a bind mount I’ve mounted the drive directly to the /srv/nfs location.

s: server, c: client
s ❯ sudo mkdir -p /srv/nfs/V
s ❯ sudo chmod ugo+rwx /srv/nfs/V
s ❯ sudo umount /run/media/user/V
s ❯ lsblk -no UUID /dev/sdd1
61aea4de-aa02-4f6d-b77d-dc0b09eac2ca

s ❯ sudo blkid
/dev/sdd1: LABEL="V" UUID="61aea4de-aa02-4f6d-b77d-dc0b09eac2ca" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="823000c4-e3eb-434a-a5f9-009571ecd1c8"

s ❯ sudo cat /etc/systemd/system/srv-nfs-V.mount
[Unit]
Description=My shared partition

[Mount]
What=/dev/disk/by-uuid/61aea4de-aa02-4f6d-b77d-dc0b09eac2ca
Where=/srv/nfs/V
Type=nfs
Options=defaults,rw,noatime

[Install]
WantedBy=multi-user.target

s ❯ sudo cat /etc/systemd/system/srv-nfs-V.automount
[Unit]
Description=Automount shared partition
ConditionPathExists=/srv/nfs/V

[Automount]
Where=/srv/nfs/V
TimeoutIdleSec=10

[Install]
WantedBy=multi-user.target

s ❯ sudo systemctl enable --now srv-nfs-V.automount
s ❯ ls -l /srv/nfs/V
ls: cannot open directory '/srv/nfs/V': No such device
s ❯ sudo rm /etc/systemd/system/*mount
s ❯ sudo cat /etc/fstab
UUID=61aea4de-aa02-4f6d-b77d-dc0b09eac2ca /srv/nfs/V ext4 defaults,noatime 0 0
s ❯ sudo systemctl daemon-reload
s ❯ sudo mount -a
s ❯ ls -l /srv/nfs/V
total 24
s ❯ sudo ln -s /srv/nfs/V /run/media/user/V
s ❯ sudo cat /etc/exports
/srv/nfs            192.168.1.118(rw,sync,crossmnt,fsid=0)
/srv/nfs/V          192.168.1.118(rw,sync)

s ❯ sudo systemctl enable --now nfs-server.service

c ❯ sudo systemctl enable --now nfs-client.target
c ❯ sudo cat /etc/fstab
192.168.1.122:/nfs/V   /srv/nfs/V  nfs auto,x-systemd.automount,x-systemd.device-timeout=10,timeo=14,x-systemd.idle-timeout=1min 0 0
c ❯ sudo systemctl daemon-reload
c ❯ sudo mkdir -p /srv/nfs/V
c ❯ sudo mount -a
mount.nfs: Operation not permitted

I removed the line from /etc/fstab and tried manually:

c ❯ sudo systemctl daemon-reload
c ❯ sudo mount -t nfs 192.168.1.122:/V /srv/nfs/V
mount.nfs: Operation not permitted
c ❯ sudo mkdir -p /mnt/V
c ❯ sudo mount -t nfs 192.168.1.122:/V /mnt/V
mount.nfs: Operation not permitted