nightmorph 09/01/26 09:28:37 Modified: udev-guide.xml Log: added info on network device renaming to udev guide, bug 255613
Revision Changes Path 1.49 xml/htdocs/doc/en/udev-guide.xml file : http://sources.gentoo.org/viewcvs.py/gentoo/xml/htdocs/doc/en/udev-guide.xml?rev=1.49&view=markup plain: http://sources.gentoo.org/viewcvs.py/gentoo/xml/htdocs/doc/en/udev-guide.xml?rev=1.49&content-type=text/plain diff : http://sources.gentoo.org/viewcvs.py/gentoo/xml/htdocs/doc/en/udev-guide.xml?r1=1.48&r2=1.49 Index: udev-guide.xml =================================================================== RCS file: /var/cvsroot/gentoo/xml/htdocs/doc/en/udev-guide.xml,v retrieving revision 1.48 retrieving revision 1.49 diff -u -r1.48 -r1.49 --- udev-guide.xml 7 Sep 2008 01:41:53 -0000 1.48 +++ udev-guide.xml 26 Jan 2009 09:28:37 -0000 1.49 @@ -1,6 +1,6 @@ <?xml version='1.0' encoding="UTF-8"?> <!DOCTYPE guide SYSTEM "/dtd/guide.dtd"> -<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/udev-guide.xml,v 1.48 2008/09/07 01:41:53 nightmorph Exp $ --> +<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/udev-guide.xml,v 1.49 2009/01/26 09:28:37 nightmorph Exp $ --> <guide link="/doc/en/udev-guide.xml"> <title>Gentoo udev Guide</title> @@ -23,8 +23,8 @@ <!-- See http://creativecommons.org/licenses/by-sa/2.5 --> <license/> -<version>3</version> -<date>2008-09-06</date> +<version>4</version> +<date>2009-01-26</date> <chapter> <title>What is udev?</title> @@ -200,6 +200,8 @@ [*] Support for hot-pluggable devices File systems ---> + [*] Inotify file change notification support + [*] Inotify support for userspace Pseudo filesystems ---> [*] /proc file system support [*] Virtual memory file system support (former shm fs) @@ -371,7 +373,7 @@ </body> </section> <section> -<title>Device renaming</title> +<title>Block device renaming</title> <body> <p> @@ -399,6 +401,34 @@ </body> </section> <section> +<title>Network device renaming</title> +<body> + +<p> +Sometimes unplugging and replugging a network device (like a USB WiFi card) can +rename your net device each time, incrementing the number by one. +</p> + +<p> +When this happens, you'll see it become <c>wlan0</c>, <c>wlan1</c>, +<c>wlan2</c>, etc. This is because udev is adding additional rules to its rules +file, instead of reloading the existing rules. Since udev watches its rules +directory via inotify, you need inotify support in your kernel config: +</p> + +<pre caption="Enabling inotify support in the kernel"> +File systems ---> + [*] Inotify file change notification support + [*] Inotify support for userspace +</pre> + +<p> +Now udev will retain proper names for your network devices. +</p> + +</body> +</section> +<section> <title>udev loads modules in an unpredictable order</title> <body>
