I tried to install Hugo with Snap on Ubuntu 16.04.3 LTS (GNU/Linux 2.6.32-042stab125.5 x86_64). Service snapd is running, but I get following error:
cannot perform the following tasks: - Mount snap "core" (3604) ([start snap-core-3604.mount] failed with exit status 1: Job for snap-core-3604.mount failed. See "systemctl status snap-core-3604.mo
unt" and "journalctl -xe" for details. )
systemctl status snap-core-3604.mount command gives following output:
● snap-core-3604.mount - Mount unit for core Loaded: loaded (/etc/systemd/system/snap-core-3604.mount; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Tue 2017-12-26 02:04:46 EST; 25s ago Where: /snap/core/3604 What: /var/lib/snapd/snaps/core_3604.snap Process: 15732 ExecMount=/bin/mount /var/lib/snapd/snaps/core_3604.snap /snap/core/3604 -t squashfs -o nodev,ro
Dec 26 02:04:46 server systemd[1]: Mounting Mount unit for core... Dec 26 02:04:46 server mount[15732]: mount: /snap/core/3604: mount failed: Unknown error -1 Dec 26 02:04:46 server systemd[1]: snap-core-3604.mount: Mount process exited, code=exited status=32 Dec 26 02:04:46 server systemd[1]: Failed to mount Mount unit for core. Dec 26 02:04:46 server systemd[1]: snap-core-3604.mount: Unit entered failed state.
I got same error, when I issued install command under root privileges.
The system you're running isn't pure Ubuntu 16.04.3. It is using a non-Ubuntu kernel 2.6.32-042stab125.5 x86_64 which is missing some of the critical features required by snapd and snaps themselves. I'd recommend either switching to a stock Ubuntu kernel (if possible), or request your provider updates their kernel.