Connection refused with mergerfs in /etc/fstab?

[CuddlyBunny]

Hi,

I just set up my new linux (debian 8.6 jessie) server yesterday. With my providers setup system I installed the OS, partitioned and formatted the first drive.
There was no option to do the second one aswell so I did that one manually afterwards by running fdisk and mkfs afterwards. (I'm not using RAID or LVM.)

This was my /etc/fstab after the most basic setup. I didn't change anything else:

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proc /proc proc defaults 0 0
# /dev/sda1 during Installation (RescueSystem)
UUID=36ace109-0cec-48c8-8352-3c61274173bb none swap sw 0 0
# /dev/sda2 during Installation (RescueSystem)
UUID=3e7fef70-8870-45b3-89f0-d2a4637025d8 /boot ext3 defaults 0 0
# /dev/sda3 during Installation (RescueSystem)
UUID=1df53214-d1cd-41ed-a56a-92e7c55e4504 / ext4 defaults 0 0
# /dev/sda5 during Installation (RescueSystem)
UUID=1bd0be6a-9173-4913-96e6-f92854deef06 /mnt/hdd1 ext4 defaults 0 0
# /dev/sdb1 manually
/dev/sdb1 /mnt/hdd2 ext4 defaults 0 0

Now since I want to pool my HDDs with mergerfs I installed it like this:

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wget https://github.com/trapexit/mergerfs/releases/download/2.17.0/mergerfs_2.17.0.debian-jessie_amd64.deb
dpkg -i mergerfs_2.17.0.debian-jessie_amd64.deb
rm mergerfs*.deb

... and added this line to /etc/fstab:

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/mnt/hdd1:/mnt/hdd2 /virtual fuse.mergerfs category.create=eplfs,moveonenospc=true,defaults,allow_other,minfreespace=16G,fsname=mergerfsPool 0 0

After that I rebooted and the server wouldn't come back up (i.e. 'Connection refused' in PuTTy). So I sent the server into rescue mode (a system from my provider) and commented out that line.
Server now boots again but I don't have the slightest clue why. Does anyone have experience with mergerfs and can tell me what I did wrong?

I don't have proper experience with linux. Usually just doing what Google tells me, but with this one I'm stumped.

Cheers
- Bunny

[Head_on_a_Stick]

I have not tried mergerfs but the github page example only uses "defaults,allow_other" in the options, have you tried that?

Otherwise, perhaps 2.17 has a new bug; version 2.16 is available from Debian testing, I threw the files in an OBS repository and they seem to have built fine for a Debian jessie system:

https://software.opensuse.org/download. ... e=mergerfs

I haven't bothered renaming the package to reflect the backported status so you will have to remove it manually beforehand if you ever attempt a `dist-upgrade` to stretch.

[CuddlyBunny]

Hi,

thanks for the suggestions. The options I have in there shouldn't create such extreme bugs like failure to boot.
I found a note on the Github repository which said:

NOTE: for mounting via fstab to work you must have mount.fuse installed. For Ubuntu/Debian it is included in the fuse package.

So I did that, things worked again. Sorry for not finding out about this earlier.

Cheers,
- Bunny