Systemd Service Hang

Why and when do systemd services hang indefinitely

 Posted on April 22, 2022  |  3 minutes  |  482 words  |  Ritesh Raj Sarraf

Finally, TIL, what can all be the reason for systemd services to hang indefinitely. The internet is flooded with numerous reports on this topic but no clear answers. So no more uselessly marked workarounds like: systemctl daemon-reload and systemctl-daemon-reexec for this scenario. The scene would be something along the lines of: rrs 6467 0.0 0.0 23088 15852 pts/1 Ss 12:53 0:00 | | \_ /bin/bash rrs 11512 0.0 0.0 14876 4608 pts/1 S+ 13:18 0:00 | | | \_ systemctl restart snapper-timeline. [Read More]
Linux  Containers  systemd  hang  daemon-reexec  daemon-reload  systemd-timesyncd  systemd-tty-ask-password-agent  systemd-time-wait-sync 

Btrfs Subvol Fix

BTRFS Subvolume Received UUID fix

 Posted on April 20, 2022  |  2 minutes  |  422 words  |  Ritesh Raj Sarraf

There surely is need for better tooling on the BTRFS File System side. While migrating my setup from one machine to another, this is one issue I came to be aware of, only today, when my backup tool (btrbk) complained about it. Following the pointers, I see the below snippet in btrfs-subvolume manual page. A snapshot that was created by send/receive will be read-only, with different last change generation, read-only and with set received_uuid which identifies the subvolume on the filesystem that produced the stream. [Read More]
Linux  Containers  BTRFS  snapshot  File System  COW  Migration 

Setting Up a Secure Webapp

ngingx reverse proxy auth for a basic web app

 Posted on May 22, 2021  (Last modified on May 29, 2021)  |  8 minutes  |  1502 words  |  Ritesh Raj Sarraf

As a person who prefers full access to data in the simplest format, while at the same time having it useful with latest technologies, my quest for trying things out is an ongoing activity. Earlier, I blogged about my needs of collating news feeds in a simple format, readily accessible offline, while still being useful and aligned with the modern paradigm. In today’s age, the other common aspect of our life, is digitization of moments. [Read More]
Linux  Containers  PhotoPrism  nginx  Reverse Proxy  Docker  Proxy Auth 

Wayland KDE X11

Impressions from KDE, Wayland and Plasma 5.21.1

 Posted on February 26, 2021  (Last modified on March 1, 2021)  |  6 minutes  |  1093 words  |  Ritesh Raj Sarraf

KDE Impressions These days, I often hear a lot about Wayland. And how much of effort is being put into it; not just by the Embedded world but also the usual Desktop systems, namely KDE and GNOME. In recent past, I switched back to KDE and have been (very) happy about the switch. Even though the KDE 4 (and initial KDE 5) debacle had burnt many, coming back to a usable KDE desktop is always a delight. [Read More]
Linux  Containers  systemd  KDE  Plasma  Plasma 5.21  Wayland  X11  OBS  Open Build Service 

Cross Architecture Linux Containers

 Posted on July 19, 2019  |  9 minutes  |  1827 words  |  Ritesh Raj Sarraf

Linux and ARM With more ARM based devices in the market, and with them getting more powerful every day, it is more common to see more of ARM images for your favorite Linux distribution. Of them, Debian has become the default choice for individuals and companies to base their work on. It must have to do with Debian’s long history of trying to support many more architectures than the rest of the distributions. [Read More]
Linux  Containers  systemd  systemd-nspawn  Qemu  Virtualization  Docker