Permission denied on nfs mount, can't seem to figure it out!

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smssoleimani
Posts: 1
Joined: Sat Jan 22, 2022 4:20 am

Permission denied on nfs mount, can't seem to figure it out!

Post by smssoleimani »

Hi folks, long-time Transmission user but new to using it on Linux/Ubuntu Server, specifically 20.04. Running into permission denied issues with a nfs mount. User is 'steve' but I elevated permissions via sudo su and did everything below. Any suggestions on what I am doing wrong? I'm assuming it's an issue with permissions or something related to the user/group within linux.

Transmission install:

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apt update
apt upgrade
add-apt-repository ppa:transmissionbt/ppa
apt-get install transmission-cli transmission-common transmission-daemon
service transmission-daemon status
service transmission-daemon stop
nano /var/lib/transmission-daemon/info/settings.json
service transmission-daemon start
I only modified the following in the settings.json:
  • rpc-username, rpc-password, rpc-whitelist, download-dir, incomplete-dir, umask
NFS Install:

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apt install nfs-common
showmount -e 192.168.x.x
Export list for 192.168.x.x:
/MEDIA     *
/DOWNLOADS *
Output of 'service transmission-daemon status' following the permission denied error in the web ui:

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transmission-daemon.service - Transmission BitTorrent Daemon
     Loaded: loaded (/lib/systemd/system/transmission-daemon.service; enabled; vendor preset: enabled)
     Active: active (running) since Sat 2022-01-22 05:11:37 UTC; 5min ago
   Main PID: 17493 (transmission-da)
      Tasks: 4 (limit: 1061)
     Memory: 8.6M
     CGroup: /system.slice/transmission-daemon.service
             └─17493 /usr/bin/transmission-daemon -f --log-error

Jan 22 05:11:37 habitual-cinder-hysteria systemd[1]: Started Transmission BitTorrent Daemon.
Jan 22 05:11:39 habitual-cinder-hysteria transmission-daemon[17493]: [2022-01-22 05:11:39.018] UDP Failed to set receive buffer: requested 4194304, got 425984 (tr-udp.c:97)
Jan 22 05:11:39 habitual-cinder-hysteria transmission-daemon[17493]: [2022-01-22 05:11:39.019] UDP Failed to set send buffer: requested 1048576, got 425984 (tr-udp.c:105)
Jan 22 05:12:18 habitual-cinder-hysteria transmission-daemon[17493]: [2022-01-22 05:12:18.015] Couldn't create "/var/lib/transmission-daemon/downloads/TORRENT": Permission denied (file-posix.c:243)
Jan 22 05:12:18 habitual-cinder-hysteria transmission-daemon[17493]: [2022-01-22 05:12:18.016] Couldn't create "/var/lib/transmission-daemon/downloads/TORRENT": Permission denied (fdlimit.c:174)
cat of /etc/init.d/transmission-daemon:

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root@habitual-cinder-hysteria:/var/lib/transmission-daemon/downloads# cat /etc/init.d/transmission-daemon
#!/bin/sh -e
### BEGIN INIT INFO
# Provides:          transmission-daemon
# Required-Start:    $local_fs $remote_fs $network
# Required-Stop:     $local_fs $remote_fs $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start or stop the transmission-daemon.
# Description:       Enable service provided by transmission-daemon.
### END INIT INFO

NAME=transmission-daemon
DAEMON=/usr/bin/$NAME
USER=debian-transmission
STOP_TIMEOUT=30

export PATH="${PATH:+$PATH:}/sbin"

[ -x $DAEMON ] || exit 0

[ -e /etc/default/$NAME ] && . /etc/default/$NAME

. /lib/lsb/init-functions

start_daemon () {
    if [ $ENABLE_DAEMON != 1 ]; then
        log_progress_msg "(disabled)"
		log_end_msg 255 || true
    else    
        start-stop-daemon --start \
        --chuid $USER \
		$START_STOP_OPTIONS \
        --exec $DAEMON -- $OPTIONS || log_end_msg $?
		log_end_msg 0
    fi
}

case "$1" in
    start)
        log_daemon_msg "Starting bittorrent daemon" "$NAME"
        start_daemon
        ;;
    stop)
        log_daemon_msg "Stopping bittorrent daemon" "$NAME"
        start-stop-daemon --stop --quiet \
            --exec $DAEMON --retry $STOP_TIMEOUT \
            --oknodo || log_end_msg $?
        log_end_msg 0
        ;;
    reload)
        log_daemon_msg "Reloading bittorrent daemon" "$NAME"
        start-stop-daemon --stop --quiet \
            --exec $DAEMON \
            --oknodo --signal 1 || log_end_msg $?
        log_end_msg 0
        ;;
    restart|force-reload)
        log_daemon_msg "Restarting bittorrent daemon" "$NAME"
        start-stop-daemon --stop --quiet \
            --exec $DAEMON --retry $STOP_TIMEOUT \
            --oknodo || log_end_msg $?
        start_daemon
        ;;
    status)
        status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
        ;;
    *)
        log_action_msg "Usage: /etc/init.d/$NAME {start|stop|reload|force-reload|restart|status}" || true
        exit 2
        ;;
esac

exit 0
cat of settings.json:

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root@habitual-cinder-hysteria:/var/lib/transmission-daemon/downloads# cat /var/lib/transmission-daemon/info/settings.json
{
    "alt-speed-down": 50,
    "alt-speed-enabled": false,
    "alt-speed-time-begin": 540,
    "alt-speed-time-day": 127,
    "alt-speed-time-enabled": false,
    "alt-speed-time-end": 1020,
    "alt-speed-up": 50,
    "bind-address-ipv4": "0.0.0.0",
    "bind-address-ipv6": "::",
    "blocklist-enabled": false,
    "blocklist-url": "http://www.example.com/blocklist",
    "cache-size-mb": 4,
    "dht-enabled": true,
    "download-dir": "/var/lib/transmission-daemon/downloads",
    "download-limit": 100,
    "download-limit-enabled": 0,
    "download-queue-enabled": true,
    "download-queue-size": 5,
    "encryption": 1,
    "idle-seeding-limit": 30,
    "idle-seeding-limit-enabled": false,
    "incomplete-dir": "/var/lib/transmission-daemon/downloads",
    "incomplete-dir-enabled": false,
    "lpd-enabled": false,
    "max-peers-global": 200,
    "message-level": 1,
    "peer-congestion-algorithm": "",
    "peer-id-ttl-hours": 6,
    "peer-limit-global": 200,
    "peer-limit-per-torrent": 50,
    "peer-port": 54299,
    "peer-port-random-high": 65535,
    "peer-port-random-low": 49152,
    "peer-port-random-on-start": true,
    "peer-socket-tos": "default",
    "pex-enabled": true,
    "port-forwarding-enabled": false,
    "preallocation": 1,
    "prefetch-enabled": true,
    "queue-stalled-enabled": true,
    "queue-stalled-minutes": 30,
    "ratio-limit": 0,
    "ratio-limit-enabled": true,
    "rename-partial-files": true,
    "rpc-authentication-required": true,
    "rpc-bind-address": "0.0.0.0",
    "rpc-enabled": true,
    "rpc-host-whitelist": "",
    "rpc-host-whitelist-enabled": true,
    "rpc-password": "xxx",
    "rpc-port": 9091,
    "rpc-url": "/transmission/",
    "rpc-username": "xxx",
    "rpc-whitelist": "127.0.0.1,192.168.*.*",
    "rpc-whitelist-enabled": true,
    "scrape-paused-torrents-enabled": true,
    "script-torrent-done-enabled": false,
    "script-torrent-done-filename": "",
    "seed-queue-enabled": false,
    "seed-queue-size": 10,
    "speed-limit-down": 100,
    "speed-limit-down-enabled": false,
    "speed-limit-up": 100,
    "speed-limit-up-enabled": false,
    "start-added-torrents": true,
    "trash-original-torrent-files": false,
    "umask": 2,
    "upload-limit": 100,
    "upload-limit-enabled": 0,
    "upload-slots-per-torrent": 14,
    "utp-enabled": true
}
ls -la and mount:

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root@habitual-cinder-hysteria:/var/lib/transmission-daemon/downloads# ls -la
total 28
drwxrwx---+ 4 nobody debian-transmission 4096 Jan 22 16:16  .
drwxr-xr-x  4 root   root                4096 Jan 22 04:40  ..
drwxrwxrwx+ 8 steve  debian-transmission 4096 Jan 18 03:23  @Recycle
root@habitual-cinder-hysteria:/var/lib/transmission-daemon/downloads# 

root@habitual-cinder-hysteria:/var/lib/transmission-daemon/info# ls -la
total 28
drwsr-x--- 5 debian-transmission debian-transmission 4096 Jan 22 16:17 .
drwxr-xr-x 3 root                root                4096 Jan 22 04:40 ..
drwxr-xr-x 2 debian-transmission debian-transmission 4096 Jan 22 04:40 blocklists
-rw------- 1 debian-transmission debian-transmission  712 Jan 22 05:10 dht.dat
drwxr-xr-x 2 debian-transmission debian-transmission 4096 Jan 22 16:16 resume
lrwxrwxrwx 1 root                root                  38 May 22  2020 settings.json -> /etc/transmission-daemon/settings.json
-rw------- 1 debian-transmission debian-transmission  137 Jan 22 16:17 stats.json
drwxr-xr-x 2 debian-transmission debian-transmission 4096 Jan 22 16:15 torrents
root@habitual-cinder-hysteria:/var/lib/transmission-daemon/info# 

root@habitual-cinder-hysteria:/var/lib/transmission-daemon/info# mount
192.168.x.x:/DOWNLOADS on /var/lib/transmission-daemon/downloads type nfs (rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.x.x,mountvers=3,mountport=30000,mountproto=udp,local_lock=none,addr=192.168.x.x)


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