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--- doc:appunti:linux:sa:debian_upgrade_12_13 [2025/12/09 17:13] – [Syslog] niccolo
+++ doc:appunti:linux:sa:debian_upgrade_12_13 [2026/02/20 17:38] (current) – [Impostazioni locale LANG] niccolo
@@ Line 46: / Line 46: @@
 </file>
-Al restart del servizio systemd-journald viene creato un opportuno punto di montaggio in **tmpfs**.
+Al restart del servizio systemd-journald viene creato la directory **/run/log/journal/** in **tmpfs**.
-Per limitare lo spazio utilizzato su memoria permanente (filesystem su disco) si possono usare diverse opzioni **%%System*%%**, per gestire lo spazio in memoria volatici si usano le omologhe **%%Runtime*%%**:
+Per limitare lo spazio utilizzato su memoria permanente (filesystem su disco) si possono usare diverse opzioni **%%System*%%**, per gestire lo spazio in memoria volatile si usano le omologhe **%%Runtime*%%**:
 ^  For persistent file system  ^^
-^ SystemMaxUse       | How much disk space the journal may use up at most. Default to **10%** of the partition where ''/var/log/journal/'' resides.  |
+^ SystemMaxUse        | How much disk space the journal may use up at most. Default to **10%** of the partition where ''/var/log/journal/'' resides.  |
-^ SystemKeepFree     | How much disk space systemd-journald shall leave free for other uses. |
+^ SystemKeepFree      | How much disk space systemd-journald shall leave free for other uses. |
-^ SystemMaxFileSize  | How large individual journal files may grow at most before rotating.  |
+^ SystemMaxFileSize   | How large individual journal files may grow at most before rotating.  |
-^ SystemMaxFiles     | How many individual journal files to keep at most in rotation.  |
+^ SystemMaxFiles      | How many individual journal files to keep at most in rotation.  |
 ^  For volatile in-memory file system  ^^
-^ RuntimeMaxUse      |  |
+^ RuntimeMaxUse       | In Debian, the default ''/run/log/journal/'', resides into the ''/run'' tempfs.  |
+^ RuntimeKeepFree     |  |
+^ RuntimeMaxFileSize  |  |
+^ RuntimeMaxFiles     |  |
 ^  Rotation  ^^
-^ MaxFileSec         | The maximum time to store entries in a single journal file before rotating to the next one. Use it to ensure that not too much data is lost at once when old journal files are deleted.  |
+^ MaxFileSec          | The maximum time to store entries in a single journal file before rotating to the next one. Use it to ensure that not too much data is lost at once when old journal files are deleted.  |
-^ MaxRetentionSec    | The maximum time to store journal entries. If you need a retention shorter than the one imposed by SystemMaxUse.  |
+^ MaxRetentionSec     | The maximum time to store journal entries. If you need a retention shorter than the one imposed by SystemMaxUse.  |
 This is an example on how to limit the disk space used and to determine rotaton policy (rotate once a day, keep 366 files i.e. one year):
@@ Line 236: / Line 239: @@
 export LESS='-iR'
 </code>
+===== Impostazioni locale LANG =====
+Nelle versioni precedenti di Debian era possibile impostare una singola variabile **LC_** con il comando **localectl**. Ad esempio avendo impostato **LANG=en_US.UTF-8** (che prevede l'ora nel formato AM/PM) era comunque possibile impostare il formato a 24 ore con il comando:
+<code>
+localectl set-locale LC_TIME=C.UTF-8
+</code>
+Tale comando aggiungeva la variabile di ambiente al file **/etc/default/locale**. Con Debian Trixie lo stesso comando produce un errore:
+<code>
+localectl set-locale LC_TIME=C.UTF-8
+Failed to issue method call: Access denied
+</code>
+Si tratta di una scelta intenzionale perché Debian ha il tool **update-locale**, che può essere usato ad esempio in questo modo:
+<code>
+update-locale LANG=en_US.UTF-8 LC_TIME=C.UTF-8
+</code>
+Le impostazioni vengono salvate in **/etc/locale.conf** e il vecchio ''/etc/default/locale'' è diventato un link simbolico ad esso.