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Hi Greg, On Wednesday 25 August 2004 15:17, Denis Vlasenko wrote: > I am migrating my 2.6 systems from devfs to udev. > Versions: > > # uname -a > Linux firebird 2.6.7-bk20 #6 Mon Jul 12 01:23:31 EEST 2004 i686 unknown > # ls -d udev* hotplug* > hotplug-2004_04_01 udev-030 > > In early boot, when root fs is readonly yet, I start udev this way: > > mount -t ramfs none /dev > env - udevd & sleep 1 > udevstart > > and then continue as normal. Things mostly work. > However, I noticed that vcsN device nodes are missing > (I tried to start Midnight Commander and it failed). > This can be due to the fact that I start agettys very > late in boot sequence, and thus all ttyN's were not > open at the time of udevstart, only first one was (tty1). > > I logged in and did: > > # ls -l /udev >before > # strace -o us.log udevstart > # ls -l /udev >after > # diff -u before after >diff > > This worked, vcsN's appeared: [snip] As you suggested, I tried 2.6.9-rc1-mm1. Sorry. It does not work. My hotplug is instrumented a bit to log invocations to syslog. I did 'cat >/dev/tty13': hotplug[1196]: cmd: /sbin/hotplug vc hotplug[1196]: env: DEVPATH=/class/vc/vcs13 PATH=/sbin:/bin:/usr/sbin:/usr/bin ACTION=add PWD=/ SHLVL=1 HOME=/ SEQNUM=232 _=/sbin/env hotplug[1198]: cmd: /sbin/hotplug vc hotplug[1198]: env: DEVPATH=/class/vc/vcsa13 PATH=/sbin:/bin:/usr/sbin:/usr/bin ACTION=add PWD=/ SHLVL=1 HOME=/ SEQNUM=233 _=/sbin/env hotplug[1198]: run: /etc/hotplug.d/default/default.hotplug vc hotplug[1196]: run: /etc/hotplug.d/default/default.hotplug vc hotplug[1196]: run: /etc/hotplug.d/default/udev.hotplug vc hotplug[1198]: run: /etc/hotplug.d/default/udev.hotplug vc /dev/vcs[a]13 did NOT appear. I waited ~15 secs and ^C'ed cat: hotplug[1233]: cmd: /sbin/hotplug vc hotplug[1233]: env: DEVPATH=/class/vc/vcs13 PATH=/sbin:/bin:/usr/sbin:/usr/bin ACTION=remove PWD=/ SHLVL=1 HOME=/ SEQNUM=234 _=/sbin/env hotplug[1235]: cmd: /sbin/hotplug vc hotplug[1235]: env: DEVPATH=/class/vc/vcsa13 PATH=/sbin:/bin:/usr/sbin:/usr/bin ACTION=remove PWD=/ SHLVL=1 HOME=/ SEQNUM=235 _=/sbin/env hotplug[1233]: run: /etc/hotplug.d/default/default.hotplug vc hotplug[1235]: run: /etc/hotplug.d/default/default.hotplug vc hotplug[1235]: run: /etc/hotplug.d/default/udev.hotplug vc hotplug[1233]: run: /etc/hotplug.d/default/udev.hotplug vc I verified that I do run udevsend: # ls -l /etc/hotplug.d/default/udev.hotplug lrwxrwxrwx 1 root root 48 Aug 25 10:53 /etc/hotplug.d/default/udev.hotplug -> /app/udev-030/etc/hotplug.d/default/udev.hotplug # ls -l /app/udev-030/etc/hotplug.d/default/udev.hotplug lrwxrwxrwx 1 root root 14 Jul 27 15:35 /app/udev-030/etc/hotplug.d/default/udev.hotplug -> /sbin/udevsend # ls -l /sbin/udevsend lrwxrwxrwx 1 root root 27 Aug 25 10:53 /sbin/udevsend -> /app/udev-030/sbin/udevsend # ls -l /app/udev-030/sbin/udevsend -rwxr-xr-x 1 root root 6696 Aug 25 10:53 /app/udev-030/sbin/udevsend Symlink forest may look strange to you, but actually works. I replaced /app/udev-030/sbin/udevsend with sh script doing 'echo "I AM HERE" | logger' and I do see it in syslog. I conclude udevsend is being run, but doesn't do it's magic. -- vda - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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