(Reading database … 115892 files and directories currently installed. )
Preparing to unpack asl-update-node-list_2.0.0-beta.4_all.deb …
Removed /etc/systemd/system/multi-user.target.wants/update-node-list.service.
Unpacking asl-update-node-list (2.0.0-beta.4) over (2.0.0-beta.4) …
Setting up asl-update-node-list (2.0.0-beta.4) …
Disabling old service…
Failed to disable unit: Unit file updatenodelist.service does not exist
dpkg: error processing package asl-update-node-list (–install):
installed asl-update-node-list package post=installation script subprocess returned error exit status 1
Errors were encountered while processing:
asl-update-node-list
The “updatenodelist” is assumed to be the old service which might be running on your system, so the installer attempts to disable it. You apparently don’t have that service, so there is nothing to disable. It’s kind of unfortunate that this breaks the installer, but all you need to do to finish the install is execute the following for the new service which is called “update-node-list” with hyphens: