Differences

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--- doc:appunti:hardware:raspberrypi_nas_kodi [2022/05/28 18:01] – [RaspiOS 11 Bullseye] niccolo
+++ doc:appunti:hardware:raspberrypi_nas_kodi [2023/06/10 17:24] (current) – [RaspiOS 11 Bullseye] niccolo
@@ Line 1: / Line 1: @@
-====== Raspberry Pi NAS: Kodi and multimedia ======
+====== Kodi on a Raspberry Pi NAS ======
 This page is about configuring **[[wp>Kodi_(software)|Kodi]]** on a Raspberry Pi installed with RaspiOS, to be used as NAS and mediacenter. See the main index at **[[raspberrypi_nas]]**.
@@ Line 5: / Line 5: @@
 ===== RaspiOS 11 Bullseye =====
-Default installation on the **Raspberry Pi 4** of the Raspberry Pi OS based on **Debian 11 Bullseye** is rather satisfactory in terms of optimization; no special settings are required in **raspi-config** nor tweaking of **/boot/cmdline.txt** or **/boot/config.txt**.
+**Debian 11 Bullseye** includes Kodi 19.1 or [[https://packages.debian.org/bullseye-backports/kodi|Kodi 19.4 as a backport]]; the derivative **RaspiOS** includes Kodi 19.4 natively instead. Default installation on the **Raspberry Pi 4** of the Raspberry Pi OS based on **Debian 11 Bullseye** is rather satisfactory in terms of optimization; no special settings are required in **raspi-config** nor tweaking of **/boot/cmdline.txt** or **/boot/config.txt**.
 If your system has undergone some software upgrades, it is recommended to check the content of **config.txt** for obsolete or wrong settings. This is the default content after a vanilla installation:
@@ Line 30: / Line 30: @@
 Another usefull option is **arm_boost=1**, which works only on some more recent Raspberry Pi 4: it enable the increase of the clock rate from 1.5 GHz to 1.8 GHz. Not all the Pi 4 are able to swith to 1.8 GHz, only the ones witht the three components highlighted into the **{{.:raspberrypi:raspberry-pi-white-ring-500x592.png?linkonly|this picture}}**.
+Check for other unnecessary configuration options in **[[https://www.raspberrypi.com/documentation/computers/config_txt.html|/boot/config.txt]]**, like **start_x=1** needed on the Pi 3 to play VP6, VP8, Theora and alike encoded files. Kernel options added into **/boot/cmdline.txt** may be obsolete too, e.g. the **elevator=deadline** was suggested as an alternative to the //cfq// scheduler when minimizing I/O latency is more important than maximizing I/O throughput, but it does not exist in recent Linux kernels in Bullseye.
+==== Swap file ====
+The default RaspiOS installation will enable a swap file to support system memory. Using the **free** command you can see that a 100 Mb swap file was enabled:
+<code>
+               total        used        free      shared  buff/cache   available
+Mem:         3931052      274392       55828      105748     3600832     3397328
+Swap:         102396      102396           0
+</code>
+The swap file is **/var/swap** and unfortunately it is on the very slow **SD card**. Having 4 Gb of RAM it is preferable to disable the swap file at all, just using the systemd **dphys-swapfile** service:
+<code>
+systemctl stop dphys-swapfile.service
+systemctl disable dphys-swapfile.service
+</code>
+==== Web References ====
+  * **[[https://forums.raspberrypi.com/viewtopic.php?t=323303|Kodi on Bullseye RPiOS]]**
+  * **[[https://forums.raspberrypi.com/viewtopic.php?f=66&t=251645|Kodi on Raspberry Pi OS / Raspbian Buster]]** (not Bullseye!)
   * **[[https://forums.raspberrypi.com/viewtopic.php?t=255478|Full KMS vs Fake KMS vs Legacy driver]]**
   * **[[https://forums.raspberrypi.com/viewtopic.php?t=325836|arm_boost]]**
   * **[[https://www.raspberrypi.com/news/bullseye-bonus-1-8ghz-raspberry-pi-4/|Bullseye bonus: 1.8GHz Raspberry Pi 4]]**
-Check for other unnecessary configuration options in **[[https://www.raspberrypi.com/documentation/computers/config_txt.html|/boot/config.txt]]**, like **start_x=1** used to enable the camera module. Kernel options added into **/boot/cmdline.txt** may be obsolete too, e.g. the **elevator=deadline** was suggested as an alternative to the //cfq// scheduler when minimizing I/O latency is more important than maximizing I/O throughput, but it does not exist in recent Linux kernels in Bullseye.
 ===== RaspiOS 10 Buster =====