Dzu's Blog (Einträge über systemd)

Switching to maildir in Debian Bullseye

Detlev Zundel — Fri, 22 Oct 2021 21:23:27 GMT

Although e-mail has lost some of its importance by the advent of secure messaging platforms like Signal, from time to time I still get the itch to improve my existing setup. Recently I wondered why I am still using a single file mbox instead of the more Unixy maildir format on my Debian desktop and how difficult it would to be switch. As we will see, the transition is pretty straight forward.

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Wake-on-lan

Detlev Zundel — Fri, 28 Apr 2017 20:24:18 GMT

After upgrading my main desktop machine from Debian Jessie to Stretch, I wondered if my current solution to enable wake-on-lan on that machine could be replaced with something prepared in one of the upstream packages.

The old (but in my opinion still very elegant) solution consisted of a systemd template contained in /etc/systemd/system/wol@.service:

[Unit]
Description=Wake-on-LAN for %i
Requires=network.target
After=network.target

[Service]
ExecStart=/sbin/ethtool -s %i wol g
Type=oneshot

[Install]
WantedBy=multi-user.target

With this in place, all that is needed to enable wake-on-lan for eth0 is a simple:

root@deepthought:~# systemctl enable wol@eth0.service

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Entering Recovery Mode in Ubuntu 16.04 LTS

Detlev Zundel — Mon, 13 Feb 2017 08:16:00 GMT

As described in my post Broken Recovery Mode in Ubuntu 16.04 LTS, it is currently not possible to use the rescue mode provided by Ubuntu in the 16.04 LTS version. Although the bug was confirmed, there is no visible activity to fix the problem. Should you still need to use rescue mode, it is straightforward to enter it manually by way of providing the correct systemd parameter on the Linux command line.

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Broken Recovery Mode in Ubuntu 16.04 LTS

Detlev Zundel — Mon, 06 Feb 2017 17:51:00 GMT

Ubuntu 16.04 LTS is the first long term Ubuntu version using systemd as the init process. Unfortunately the switch from upstart to systemd broke the recovery mode that comes in handy in a number of situations.

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