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authorKai Lueke <kailuke@microsoft.com>2022-07-22 15:09:21 +0200
committerKai Lueke <kailuke@microsoft.com>2022-07-22 15:09:21 +0200
commit519c2f0d6b343d140f7e08e3eb0f46708c023b4a (patch)
tree18d3797f39bd6aebda5e7c88f554b13d43c77118 /man/systemd-sysext.xml
parent566e4b3a19e8cba2fee588b101560269b8dae033 (diff)
downloadsystemd-519c2f0d6b343d140f7e08e3eb0f46708c023b4a.tar.gz
man: Document mask workaround for sysext images
A read-only /usr may ship a sysext image by default and the user wants to opt out. Currently it's not clear how to do this. Document that a /dev/null symlink in /etc/extensions/ works to "mask" a sysext image in a folder with lower precedence.
Diffstat (limited to 'man/systemd-sysext.xml')
-rw-r--r--man/systemd-sysext.xml4
1 files changed, 3 insertions, 1 deletions
diff --git a/man/systemd-sysext.xml b/man/systemd-sysext.xml
index d7f5d2f37f..42e8e12df9 100644
--- a/man/systemd-sysext.xml
+++ b/man/systemd-sysext.xml
@@ -108,7 +108,9 @@
accessed.</para>
<para>Note that there is no concept of enabling/disabling installed system extension images: all
- installed extension images are automatically activated at boot.</para>
+ installed extension images are automatically activated at boot. However, you can place a symlink
+ to <filename>/dev/null</filename> in <filename>/etc/extensions/</filename> to "mask" an image with
+ the same name in a folder with lower precedence.</para>
<para>A simple mechanism for version compatibility is enforced: a system extension image must carry a
<filename>/usr/lib/extension-release.d/extension-release.<replaceable>$name</replaceable></filename>