Bug 64750

Summary:	udev fails to create /dev/md?
Product:	Gentoo Linux	Reporter:	Patrick Lauer <patrick>
Component:	New packages	Assignee:	Gentoo Linux bug wranglers <bug-wranglers>
Status:	RESOLVED UPSTREAM
Severity:	normal
Priority:	High
Version:	unspecified
Hardware:	x86
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Patrick Lauer gentoo-dev

2004-09-20 06:26:34 UTC

On my system, udev fails to create the /dev/md[0-9] devices for the md driver, thus not allowing me to create a Raid.

mknod /dev/md0 c 9 0 should create md0, but then mkraid -V says:
cannot determine md version: 6.
and exits. I assume that this is udev-related since it used to work on devfs systems and the md driver loads without problems

Reproducible: Always
Steps to Reproduce:
1. emerge udev raidtools
2. mkraid -V
3. 

Actual Results:  
The /dev/md[0-9] devices were missing

Expected Results:  
mkraid should have initialised the raid devices

Portage 2.0.51_rc1 (default-x86-1.4, gcc-3.4.1, glibc-2.3.4.20040808-r0, 2.6.7 i686)
=================================================================
System uname: 2.6.7 i686 AMD Athlon(tm) XP 2600+
Gentoo Base System version 1.5.3
distcc 2.17 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled]
ccache version 2.3 [enabled]
Autoconf: sys-devel/autoconf-2.59-r4
Automake: sys-devel/automake-1.8.5-r1
Binutils: sys-devel/binutils-2.15.90.0.1.1-r3
Headers:  sys-kernel/linux-headers-2.4.22
Libtools: sys-devel/libtool-1.5.2-r5
ACCEPT_KEYWORDS="x86 ~x86"
AUTOCLEAN="yes"
CFLAGS="-O2 -march=athlon-xp -pipe"
CHOST="i686-pc-linux-gnu"
COMPILER=""
CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config
/usr/kde/3.1/share/config /usr/kde/3.2/share/config /usr/kde/3.3/env
/usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config
/usr/lib/mozilla/defaults/pref /usr/share/config
/usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/
/usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/
/usr/share/texmf/xdvi/ /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O2 -march=athlon-xp -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs ccache sandbox"
GENTOO_MIRRORS="ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo
http://gentoo.inode.at/ ftp://gentoo.inode.at/source/"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage"
USE="3dnow X aalib alsa apache2 apm arts avi berkdb bitmap-fonts bonobo cdr
crypt cups dga dvd encode esd faad ffmpeg foomaticdb freetype gdbm gif gnome gpm
gtk2 gtkhtml imlib java jpeg kde libg++ libwww mikmod motif mozilla mpeg mysql
nas ncurses nls oggvorbis opengl oss pam pdflib perl png python qt quicktime
readline sdl slang spell ssl tcltk tcpd tetex truetype x86 xml2 xmms xprint xv zlib"

Comment 1 Patrick Lauer gentoo-dev

2004-09-20 07:30:29 UTC

md is not sysfs-aware, MAKEDEV md creates the missing device nodes.

The documentation is quite lacking, so it took me some time to track that down.