Re: [gentoo-user] Implicit udev dependancy in Gentoo? and workaround.
On 24 December 2012 22:21, Walter Dnes wrote: > I'm asking questions here before filing a bug/reature-request, to make > sure I have my ducks in a row. I did a big update a couple of days ago. > As per the user in... http://forums.gentoo.org/viewtopic-p-7168984.html > I too ran into a situation where I couldn't open any xterms because > /dev/pts was empty. The solution for that user came in 2 parts... > > 1) Add the following line to /etc/fstab > devpts /dev/pts devpts defaults 0 0 > > 2) Run "rc-update add udev-mount sysinit" oops... what udev-mount? I'm > the troublemaker/malcontent who runs mdev instead of udev. > > I noticed that the temporary solution would be to manually execute > "mount devpts". The problem was that it would only last till the next > reboot, after which the mount needed to be issued again. I got around > that by putting "mount devpts" in /etc/local.d/000.start (which file > must be executable). It is executed every bootup, solving the problem. > My questions... > > 1) Is this just my system, or has anybody else with mdev run into it? > If others have the same problem, I'll update the mdev wiki page to > mention this. I run mdev here, but haven't run into the problem you're describing. I don't have an /etc/fstab entry for /dev/pts, so I'm not entirely sure where it's starting, but it's definitely here. $ mount | grep pts devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620) $ ls -l /dev/pts/ total 0 crw--w 1 misternono tty 136, 0 Jan 6 14:27 0 crw--w 1 misternono tty 136, 1 Jan 6 13:48 1 crw--w 1 misternono tty 136, 2 Jan 6 13:32 2 crw--w 1 misternono tty 136, 3 Jan 6 14:27 3 Unless it's started by mdev via "rc-update add mdev sysinit". I'm just fartin' around with linux, though, so if you need any other information, let me know. Linux hostname 3.7.1-gentoo #1 SMP Tue Dec 18 16:49:02 EST 2012 i686 Intel(R) Atom(TM) CPU N280 @ 1.66GHz GenuineIntel GNU/Linux # rc-update show acpid | default alsasound | boot bootmisc | boot consolefont | boot default dbus | default devfs | sysinit dmesg | sysinit fsck | boot hostname | boot hwclock | boot keymaps | boot killprocs | shutdown laptop_mode | default local | default localmount | boot mdev | sysinit microcode_ctl | default modules | boot mount-ro | shutdown mtab | boot net.eth0 | default net.lo | boot net.wlan0 | default netmount | default ntpd | default procfs | boot root | boot rpcbind | default savecache | shutdown sshd | default swap | boot swapfiles | boot sysctl | boot sysfs | sysinit sysklogd | default termencoding | boot tmpfiles.setup | boot urandom | boot vixie-cron | default
Re: [gentoo-user] Implicit udev dependancy in Gentoo? and workaround.
On Tue, Dec 25, 2012 at 11:51:20AM +0800, William Kenworthy wrote > It does a few other things ... attached it here as its not that long. Thanks. The mdev setup has always required "CONFIG_DEVTMPFS=y". The other stuff (that udev-mount does) appears to be similar to what mdev does at bootup, as directed by /etc/mdev.conf I'll update the mdev page on the Gentoo wiki, just in case anyone else runs into this. -- Walter Dnes I don't run "desktop environments"; I run useful applications
Re: [gentoo-user] Implicit udev dependancy in Gentoo? and workaround.
On 25/12/12 11:21, Walter Dnes wrote: > I'm asking questions here before filing a bug/reature-request, to make > sure I have my ducks in a row. I did a big update a couple of days ago. > As per the user in... http://forums.gentoo.org/viewtopic-p-7168984.html > I too ran into a situation where I couldn't open any xterms because > /dev/pts was empty. The solution for that user came in 2 parts... > > 1) Add the following line to /etc/fstab > devpts /dev/pts devpts defaults 0 0 > > 2) Run "rc-update add udev-mount sysinit" oops... what udev-mount? I'm > the troublemaker/malcontent who runs mdev instead of udev. > > I noticed that the temporary solution would be to manually execute > "mount devpts". The problem was that it would only last till the next > reboot, after which the mount needed to be issued again. I got around > that by putting "mount devpts" in /etc/local.d/000.start (which file > must be executable). It is executed every bootup, solving the problem. > My questions... > > 1) Is this just my system, or has anybody else with mdev run into it? > If others have the same problem, I'll update the mdev wiki page to > mention this. > > 2) Can someone who uses udev have a look at their "udev-mount" script > and see if it does any other stuff besides mounting devpts? > Sorry about the html mail ... I just moved to tbird and didnt realise it was selected. BillK
Re: [gentoo-user] Implicit udev dependancy in Gentoo? and workaround.
On 25/12/12 11:21, Walter Dnes wrote:
> I'm asking questions here before filing a bug/reature-request, to make
> sure I have my ducks in a row. I did a big update a couple of days ago.
> As per the user in... http://forums.gentoo.org/viewtopic-p-7168984.html
> I too ran into a situation where I couldn't open any xterms because
> /dev/pts was empty. The solution for that user came in 2 parts...
>
> 1) Add the following line to /etc/fstab
> devpts /dev/pts devpts defaults 0 0
>
> 2) Run "rc-update add udev-mount sysinit" oops... what udev-mount? I'm
> the troublemaker/malcontent who runs mdev instead of udev.
>
> I noticed that the temporary solution would be to manually execute
> "mount devpts". The problem was that it would only last till the next
> reboot, after which the mount needed to be issued again. I got around
> that by putting "mount devpts" in /etc/local.d/000.start (which file
> must be executable). It is executed every bootup, solving the problem.
> My questions...
>
> 1) Is this just my system, or has anybody else with mdev run into it?
> If others have the same problem, I'll update the mdev wiki page to
> mention this.
>
> 2) Can someone who uses udev have a look at their "udev-mount" script
> and see if it does any other stuff besides mounting devpts?
>
It does a few other things ... attached it here as its not that long.
BillK
#!/sbin/runscript
# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
description="mount devtmpfs on /dev"
depend()
{
provide dev-mount
keyword -vserver -lxc
}
mount_dev_directory()
{
local mounted=false fstab=false action=--mount msg=Mounting rc=0
if ! grep -qs devtmpfs /proc/filesystems; then
eerror "CONFIG_DEVTMPFS=y is required in your kernel
configuration"
eerror "for this version of udev to run successfully."
eerror "This requires immediate attention."
if ! mountinfo -q /dev; then
mount -n -t tmpfs dev /dev
busybox mdev -s
mkdir /dev/pts
fi
return 1
fi
# Is /dev already a mounted devtmpfs?
mountinfo -q -f devtmpfs /dev && mounted=true
# If an entry for /dev exists in fstab it must be a devtmpfs.
fstabinfo -q -t devtmpfs /dev && fstab=true
# No options are processed here as they should all be in /etc/fstab
if $fstab; then
$mounted && action=--remount && msg=Remounting
ebegin "$msg /dev according to /etc/fstab"
fstabinfo $action /dev
rc=$?
elif ! $mounted; then
ebegin "Mounting /dev"
# Some devices require exec, Bug #92921
mount -n -t devtmpfs -o "exec,nosuid,mode=0755,size=10M" udev
/dev
rc=$?
else
ebegin "Using /dev mounted from kernel"
fi
eend $rc
}
seed_dev()
{
# Seed /dev with some things that we know we need
# creating /dev/console, /dev/tty and /dev/tty1 to be able to write
# to $CONSOLE with/without bootsplash before udevd creates it
[ -c /dev/console ] || mknod -m 600 /dev/console c 5 1
[ -c /dev/tty1 ] || mknod -m 620 /dev/tty1 c 4 1
[ -c /dev/tty ] || mknod -m 666 /dev/tty c 5 0
# udevd will dup its stdin/stdout/stderr to /dev/null
# and we do not want a file which gets buffered in ram
[ -c /dev/null ] || mknod -m 666 /dev/null c 1 3
# so udev can add its start-message to dmesg
[ -c /dev/kmsg ] || mknod -m 660 /dev/kmsg c 1 11
# Create problematic directories
mkdir -p /dev/pts /dev/shm
return 0
}
start()
{
mount_dev_directory || return 1
seed_dev
return 0
}
[gentoo-user] Implicit udev dependancy in Gentoo? and workaround.
I'm asking questions here before filing a bug/reature-request, to make sure I have my ducks in a row. I did a big update a couple of days ago. As per the user in... http://forums.gentoo.org/viewtopic-p-7168984.html I too ran into a situation where I couldn't open any xterms because /dev/pts was empty. The solution for that user came in 2 parts... 1) Add the following line to /etc/fstab devpts /dev/pts devpts defaults 0 0 2) Run "rc-update add udev-mount sysinit" oops... what udev-mount? I'm the troublemaker/malcontent who runs mdev instead of udev. I noticed that the temporary solution would be to manually execute "mount devpts". The problem was that it would only last till the next reboot, after which the mount needed to be issued again. I got around that by putting "mount devpts" in /etc/local.d/000.start (which file must be executable). It is executed every bootup, solving the problem. My questions... 1) Is this just my system, or has anybody else with mdev run into it? If others have the same problem, I'll update the mdev wiki page to mention this. 2) Can someone who uses udev have a look at their "udev-mount" script and see if it does any other stuff besides mounting devpts? -- Walter Dnes I don't run "desktop environments"; I run useful applications
