SABnzbd via SNAP: Howto

[sanderjo]

SABnzbd via SNAP: Howto

Snap is available for a lot of Linux distribution, like

• Ubuntu
• Debian
• Raspberry Pi OS
• Fedora
• openSUSE
• Arch Linux
• Manjaro Linux

Install snapd

See https://snapcraft.io/docs/installing-snapd . On Debian and Raspi OS:

$ sudo apt update
$ sudo apt install snapd

Install the sabznbd snap

$ sudo snap install sabnzbd

Run the sabnzbd snap

$ sudo snap run sabnzbd

Access sabnzbd via http:127.0.0.1:8080

Run the sabnzbd snap as normal user

One time:
sudo chmod 777 /var/snap/sabnzbd/common/sabnzbd.ini

Then

$ snap run sabnzbd

Access sabnzbd via http:127.0.0.1:8080

Check if sabnzbd snap is running

$ snap services | grep -i active | grep -i sabnzbd
sabnzbd.sabnzbd                                      enabled  active   -

To do

• run as normal user
• specify sabnzbd.ini
• set nice download dir
• autostart sabnzbd snap

[sanderjo]

On Raspi, if you get

ERROR: ld.so: object '/usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so' from /etc/ld.so.preload cannot be preloaded (cannot open shared object file): ignored.

do this:

sudo nano /etc/ld.so.preload

and commented the offending line out from

/usr/lib/arm-linux-gnueabihf/libarmmem.so

to

#/usr/lib/arm-linux-gnueabihf/libarmmem.so

[thezoggy]

if you are changing out linked libraries normally you would use ldconfig to clear out cache and relink stuff
https://man7.org/linux/man-pages/man8/ldconfig.8.html

so instead of manually updating to comment it out, what if you just run ldconfig to make it clear its cache?

[sanderjo]

I'll try as soon as I'm near that Raspi.

[sanderjo]

I tried:
un-uncommented the line to make it active, did not do the ldconfig command, rebooted raspi, started sabnzbd-snap ... no error at all. Weird.

[sanderjo]

Ah, it was back. So I tried sudo ldconfig, and did not help

sander@raspberrypi:~ $ snap run sabnzbd
ERROR: ld.so: object '/usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so' from /etc/ld.so.preload cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so' from /etc/ld.so.preload cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so' from /etc/ld.so.preload cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so' from /etc/ld.so.preload cannot be preloaded (cannot open shared object file): ignored.

Fatal error:
  "/var/snap/sabnzbd/common/sabnzbd.ini" is not a valid configuration file<br>Error message: [Errno 13] Permission denied: '/var/snap/sabnzbd/common/sabnzbd.ini'
Specify a correct file or delete this file.
sander@raspberrypi:~ $ sudo ldconfig
sander@raspberrypi:~ $ snap run sabnzbd
ERROR: ld.so: object '/usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so' from /etc/ld.so.preload cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so' from /etc/ld.so.preload cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so' from /etc/ld.so.preload cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so' from /etc/ld.so.preload cannot be preloaded (cannot open shared object file): ignored.

Fatal error:
  "/var/snap/sabnzbd/common/sabnzbd.ini" is not a valid configuration file<br>Error message: [Errno 13] Permission denied: '/var/snap/sabnzbd/common/sabnzbd.ini'
Specify a correct file or delete this file.
sander@raspberrypi:~ $ 

[thezoggy]

is that just bad platform detection in the snap make / unsupported platform?

guessing you found: https://stackoverflow.com/questions/42443273/raspberry-pi-libarmmem-so-cannot-open-shared-object-file-error/50958615#50958615

found this,
https://forum.snapcraft.io/t/snapcraft-3-x-cross-compilation-amd64-armhf-in-multipass-vm/9758/7

wonder if we need to add the run-on to fixup snap building for the correct arc instead of just using vm original arc

[sanderjo]

Running the sabnzbd snap as normal user:

$ snap run sabnzbd

Fatal error:
  "/var/snap/sabnzbd/common/sabnzbd.ini" is not a valid configuration file<br>Error message: [Errno 13] Permission denied: '/var/snap/sabnzbd/common/sabnzbd.ini'
Specify a correct file or delete this file.

solved / prevented with:

sander@zwart2204:~$ sudo chmod 777 /var/snap/sabnzbd/common/sabnzbd.ini

sander@zwart2204:~$ ll /var/snap/sabnzbd/common/sabnzbd.ini
-rwxrwxrwx 1 777 root 6171 okt 13 20:12 /var/snap/sabnzbd/common/sabnzbd.ini*

[sanderjo]

Something weird. Maybe @Safihre and @jcfp can help?

I can only start the sabnzbd snap via "snap run sabnzbd". Not too bad, but I can start the firefox snap and pycharm snap without "snap run".

sander@zwart2204:~$ which firefox
/snap/bin/firefox

... which is found as /snap/bin is in my path

Something weird: it's a link to the snap binary itself:

sander@zwart2204:~$ ll /snap/bin/firefox
lrwxrwxrwx 1 root root 13 okt 12 14:14 /snap/bin/firefox -> /usr/bin/snap*

@jcfp do you understand that?

Same with pycharm ... all good & automatic:

sander@zwart2204:~$ which pycharm-community 
/snap/bin/pycharm-community

sander@zwart2204:~$ ll /snap/bin/pycharm-community
lrwxrwxrwx 1 root root 13 okt 12 23:48 /snap/bin/pycharm-community -> /usr/bin/snap*

Back to sabnzbd: it's not in /snap/bin:

sander@zwart2204:~$ ll /snap/bin/| grep -i  sabnzbd
sander@zwart2204:~$ 

So ... is that the cause I cannot run it by typing just sabnzbd ?

[Safihre]

It should run on startup, so there's no command because it runs as daemon.

[sanderjo]

Ah! I did a reboot of Ubuntu, and indeed sabnzbd-snap is running. Nice!

$ snap services  | grep sabnzbd
sabnzbd.sabnzbd                                      enabled  active   -