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benny1967
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Joined: 25 Apr 2004
Posts: 224
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 Posted: Sun Sep 17, 2006 11:20 am Post subject: init 1 >> "Give root password for maintenance&quo |
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Hi,
some years ago I got into the habit of typing before doing unattended emerge-world-sessions overnight. (Only to shut down unnecessary services without calling the scripts manually.)
After one of the recent system updates, this doesnt work as expected any longer:
The services shut down, but then I get a
| Code: | | Give root password for maintenance (or type Control-D to continue) |
on tty 1.
I first thought "well, if you want it, here it is", but typing the root password only caused the prompt to re-appear with each single letter I typed. Suddenly the usual bash-prompt re-appeared, only to tell me that what I'd entered is not a valid command. It seems bash and (probably) sulogin (?) are fighting for control over tty 1, resulting in the console being unusable. (BTW: my logfile is full of login errors for uid 0 when I do this.)
All of this is a more or less cosmetical problem as I still have tty 2-6 to work with. Still I'd be interested to know why this happens, what caused it after all these years and how to stop it.
Oh, yes, before you tell me: I did seach the forum and yes, there are quite a lot of posts regarding the "Give root password"-thing, but all of them have a different context: They describe a situation when either shutdown or boot will not work, which is not the case here. |
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chrisstankevitz
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Joined: 14 Dec 2003
Posts: 472
Location: Santa Barbara, CA, USA
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| Posted: Fri Oct 13, 2006 4:51 pm Post subject: |
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| Me too. Exact same problem. |
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terminal9
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Joined: 12 Oct 2006
Posts: 157
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| Posted: Sat Oct 14, 2006 1:22 pm Post subject: |
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does not work either, it seems switching to runlevel 1 is broken,
https://bugs.gentoo.org/show_bug.cgi?id=95876
this bug entry says it's fixed but it's not.
How can such a fundamental operation remains broken still? or is there sth we're missing? |
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energyman76b
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Joined: 26 Mar 2003
Posts: 2048
Location: Germany
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| Posted: Sat Oct 14, 2006 2:44 pm Post subject: |
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wow, and I thought, that I am the only one with that problem ...
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terminal9
Apprentice
Joined: 12 Oct 2006
Posts: 157
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| Posted: Sat Oct 14, 2006 3:19 pm Post subject: |
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Both sulogin and agetty seem to be racing for the console, so the following line in /etc/inittab is the culprit:
| Code: |
c1:12345:respawn:/sbin/agetty 38400 tty1 linux |
we don't want a tty handler in runlevel 1, so it should be:
| Code: |
c1:2345:respawn:/sbin/agetty 38400 tty1 linux |
Now, please tell me there's actually a good reason to put 1 in that line, otherwise I'll be very upset to have selected Gentoo seeing it with such a crucial fault unnoticed for a long time. 
(yeah, this is my 2nd day) |
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energyman76b
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Joined: 26 Mar 2003
Posts: 2048
Location: Germany
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| Posted: Sat Oct 14, 2006 3:22 pm Post subject: |
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| terminal9 wrote: | Both sulogin and agetty seem to be racing for the console, so the following line in /etc/inittab is the culprit:
| Code: |
c1:12345:respawn:/sbin/agetty 38400 tty1 linux |
we don't want a tty handler in runlevel 1, so it should be:
| Code: |
c1:2345:respawn:/sbin/agetty 38400 tty1 linux |
Now, please tell me there's actually a good reason to put 1 in that line, otherwise I'll be very upset to have selected Gentoo seeing it with such a crucial fault unnoticed for a long time.
(yeah, this is my 2nd day) |
you may get an answer to that question, if you post it as a comment to the bug...
_________________
Study finds stunning lack of racial, gender, and economic diversity among middle-class white males
I identify as a dirty penismensch. |
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terminal9
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Joined: 12 Oct 2006
Posts: 157
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| Posted: Sat Oct 14, 2006 3:52 pm Post subject: |
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| energyman76b wrote: | | you may get an answer to that question, if you post it as a comment to the bug... |
I don't get the discussion in that bug entry, they're talking about baselayout package but /etc/inittab is part of sysvinit package. It's also about hacking init so that S or s can be used directly to switch to runlevel 1, but read this from init's man page:
| Quote: |
runlevel 1 is used to
get the system down into single user mode. Runlevel S is not really
meant to be used directly, but more for the scripts that are executed
when entering runlevel 1. |
It seems Gentoo is inventing its own understanding of the init process, too bad  |
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timeBandit
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Joined: 31 Dec 2004
Posts: 2719
Location: here, there or in transit
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| Posted: Sat Oct 14, 2006 4:03 pm Post subject: |
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I can't speak to the single-user-mode problem because my "maintenance mode" technique avoids it entirely. Gentoo extends the SysV init system to support an arbitrary number of "runlevels," so I created a couple of custom ones for heavy maintenance work and never bother with telinit. There's little need for true single-user mode on a desktop system anyway--as benny1967 said in the OP, it's an easy way to shut off all unnecessary services. Here's another way:
(Note that I did this years ago, but you may not need to: the Handbook suggests newer baselayouts include runlevel single, which probably gives the same end result.)
1. As root, create the runlevel directory for your new runlevel (using my admin runlevel as an example): | Code: | ~ # cd /etc/runlevels/
runlevels # mkdir admin |
2. Clone it from your default runlevel: | Code: | | runlevels # cp -P default/* admin |
cp -P copies symlinks as such, instead of following them.
3. Review the services in the new runlevel and remove the ones you don't want: | Code: | runlevels # eselect rc list admin
Init scripts to be started by runlevel admin
acpid
apcupsd
atd
bootsplash
cupsd
ddclient
famd
hplip
local
net.eth0
netmount
ntpd
postfix
syslog-ng
vixie-cron
vmware
xdm
xfs
runlevels # cd admin
admin # rm acpid atd bootsplash cupsd ddclient famd hplip postfix vixie-cron vmware xdm xfs |
eselect rc delete <service> <runlevel> is the "right" way to do it, but removing the symlinks directly is quicker.  I also added gpm to have mouse support on the console: | Code: | admin # eselect rc add gpm default
Adding gpm to following runlevels
default [done] |
Then just use rc admin to switch to your new admin runlevel, and rc default to restart everything when you're done.
One last trick: add this to root's .bash_profile to making starting/stopping individual services a little easier: | Code: | # save typing when stopping/starting services
#
function svc() {
if [ -z "$1" ] ; then
echo "Usage: svc <service-name> <action>"
elif [ ! -x "/etc/init.d/$1" ] ; then
echo "-svc: $1: No such service"
else
SERVICE="/etc/init.d/$1"
shift
$SERVICE $*
fi
}
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For example: | Code: | ~ # svc ntpd stop
* Stopping ntpd ... [ ok ]
~ # svc ntpd start
* Starting ntpd ... [ ok ]
~ # svc foo status
-svc: foo: No such service
~ # svc ntpd status
* status: started
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Last edited by timeBandit on Thu Aug 14, 2008 2:39 am; edited 1 time in total |
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energyman76b
Advocate
Joined: 26 Mar 2003
Posts: 2048
Location: Germany
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| Posted: Sat Oct 14, 2006 4:09 pm Post subject: |
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the problem: when I borked my system with a glibc downgrade (don't do it people!), I had a hard time to get a root console, because of this misbehaviour. And no 'admin' runlevel would have safed my ass.
_________________
Study finds stunning lack of racial, gender, and economic diversity among middle-class white males
I identify as a dirty penismensch. |
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wuzzerd
Guru
Joined: 05 Jan 2005
Posts: 467
Location: New Mexico
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| Posted: Sat Oct 14, 2006 6:19 pm Post subject: |
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[quote="energyman76b"][quote="terminal9"]Both sulogin and agetty seem to be racing for the console, so the following line in /etc/inittab is the culprit:
| Code: |
c1:12345:respawn:/sbin/agetty 38400 tty1 linux |
we don't want a tty handler in runlevel 1, so it should be:
| Code: |
c1:2345:respawn:/sbin/agetty 38400 tty1 linux |
Thanks for that. I haven't needed it yet, but the way power fails around here anytime I might get kicked to single user to run fsck manually. |
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terminal9
Apprentice
Joined: 12 Oct 2006
Posts: 157
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| Posted: Sun Oct 15, 2006 7:27 pm Post subject: |
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| timeBandit wrote: | | I can't speak to the single-user-mode problem because my "maintenance mode" technique avoids it entirely. Gentoo extends the SysV init system ... |
I don't see any extension per se, this is just plain broken. The init startup technique on un*x systems is decades old and proven. I just expect it to work as it is.
| wuzzerd wrote: | | Code: | | c1:2345:respawn:/sbin/agetty 38400 tty1 linux |
Thanks for that. I haven't needed it yet, but the way power fails around here anytime I might get kicked to single user to run fsck manually. |
That eliminates race for console only. If one decides to press Ctrl-D rather than login as root after doing telinit 1, the system dies. The problem is init losing state due to directly calling sulogin in /sbin/rc, i.e.
| Code: |
if [[ ${SOFTLEVEL} == "single" ]] ; then
rm -rf "${svcdir}/softscripts.new"
/sbin/sulogin ${CONSOLE}
exit 0
fi |
should be | Code: |
...
/sbin/telinit S
exit 0
fi |
Finally, S should be removed from the /etc/inittab line below. init handles it.
| Code: | | l1:S1:wait:/sbin/rc single |
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ppurka
Advocate
Joined: 26 Dec 2004
Posts: 3256
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| Posted: Sun Oct 15, 2006 8:51 pm Post subject: |
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| terminal9 wrote: | The problem is init losing state due to directly calling sulogin in /sbin/rc, i.e.
| Code: |
if [[ ${SOFTLEVEL} == "single" ]] ; then
rm -rf "${svcdir}/softscripts.new"
/sbin/sulogin ${CONSOLE}
exit 0
fi |
should be | Code: |
...
/sbin/telinit S
exit 0
fi |
Finally, S should be removed from the /etc/inittab line below. init handles it.
| Code: | | l1:S1:wait:/sbin/rc single |
|
I have noticed this problem on my system too, since one month at least.
I don't think doing the above modification is the correct approach since after executing init 1, I am provided with the "CTRL-D for maintenance" prompt, whereas I used to get the command prompt on executing init 1 earlier.
EDIT: Simply commenting out the /sbin/sulogin line in /sbin/rc seems to have fixed the problem for me. I get the earlier behaviour where I am not provided any prompt for a password, but the command prompt is available. |
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terminal9
Apprentice
Joined: 12 Oct 2006
Posts: 157
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| Posted: Sun Oct 15, 2006 9:35 pm Post subject: |
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| ppurka wrote: | I have noticed this problem on my system too, since one month at least.
I don't think doing the above modification is the correct approach since after executing init 1, I am provided with the "CTRL-D for maintenance" prompt, whereas I used to get the command prompt on executing init 1 earlier.
EDIT: Simply commenting out the /sbin/sulogin line in /sbin/rc seems to have fixed the problem for me. I get the earlier behaviour where I am not provided any prompt for a password, but the command prompt is available. |
Do that from a tty other than the first one, and tell me what happens. 
(i.e. press Alt-F2, login as root, run init 1) |
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ppurka
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Joined: 26 Dec 2004
Posts: 3256
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| Posted: Sun Oct 15, 2006 10:51 pm Post subject: |
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| terminal9 wrote: | Do that from a tty other than the first one, and tell me what happens.
(i.e. press Alt-F2, login as root, run init 1) |
Of course, I was not given the prompt back  init 1 will shut down all the ttys except the one on ALT-F1.
However, I could ALT-F1 to tty1 and login as root with no problems. An init 5, and I am back to writing this post  |
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LoSeR_5150
Guru
Joined: 20 Mar 2005
Posts: 455
Location: San Francisco, CA
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| Posted: Wed Oct 18, 2006 3:03 am Post subject: |
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yeah now my shutdown works properly again... thanks terminal9
update: this worked on my x86 and amd64 as both were affected
_________________
Opteron 1356@2.4Ghz
6GB DDR2 800Mhz
128MB Quadro NVS 210S
640GB Western Digital HD
*Gentoo-x86_64-2.6.30-r1
Opteron175@2.2GHz
2GB DDR 400MHz
256MB Quadro 1400 Go
(2) 80GB Segate HDs: RAID0
*Gentoo-x86_64-2.6.30-r1
Last edited by LoSeR_5150 on Tue Oct 31, 2006 3:34 am; edited 1 time in total |
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drescherjm
Advocate
Joined: 05 Jun 2004
Posts: 2790
Location: Pittsburgh, PA, USA
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| Posted: Wed Oct 18, 2006 1:42 pm Post subject: |
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Thanks guys, I just checked and I have the same problem on amd64. When I get some time I will try the solutions above and report back.
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My gentoo overlay
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GWilliam
Guru
Joined: 29 Dec 2005
Posts: 350
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| Posted: Sun Jan 14, 2007 2:21 am Post subject: |
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#NULL
Last edited by GWilliam on Sun Jul 25, 2010 3:22 pm; edited 1 time in total |
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drescherjm
Advocate
Joined: 05 Jun 2004
Posts: 2790
Location: Pittsburgh, PA, USA
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| Posted: Fri Jan 19, 2007 1:33 pm Post subject: |
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I have just checked and it now works fine for me however I am not sure what I did to fix it...
| Code: | # emerge --info
Portage 2.1.2 (default-linux/amd64/2006.1, gcc-4.1.1/amd64-vanilla, glibc-2.4-r4, 2.6.18-gentoo-r2 x86_64)
=================================================================
System uname: 2.6.18-gentoo-r2 x86_64 AMD Opteron(tm) Processor 850
Gentoo Base System version 1.12.8
Timestamp of tree: Fri, 19 Jan 2007 08:00:02 +0000
distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled]
ccache version 2.3 [enabled]
app-admin/eselect-compiler: 2.0.0_rc2-r1
dev-java/java-config: 1.3.7, 2.0.31
dev-lang/python: 2.4.3-r4
dev-python/pycrypto: 2.0.1-r5
dev-util/ccache: 2.3
dev-util/confcache: 0.4.2-r1
sys-apps/sandbox: 1.2.18.1
sys-devel/autoconf: 2.13, 2.61
sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
sys-devel/binutils: 2.17
sys-devel/gcc-config: 2.0.0_rc1
sys-devel/libtool: 1.5.22
virtual/os-headers: 2.6.17-r2
ACCEPT_KEYWORDS="amd64"
AUTOCLEAN="yes"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=k8 -O3 -pipe -fomit-frame-pointer -msse3"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/lib64/mozilla/defaults/pref /usr/share/X11/xkb /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/eselect/compiler /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/texmf/web2c"
CXXFLAGS="-march=k8 -O3 -pipe -fomit-frame-pointer -msse3"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig candy ccache confcache distlocks metadata-transfer parallel-fetch sandbox sfperms strict"
GENTOO_MIRRORS="http://gentoo.osuosl.org/ http://gentoo.cites.uiuc.edu/pub/gentoo/ http://gentoo.chem.wisc.edu/gentoo/ http://gentoo.mirrors.tds.net/gentoo"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_EXTRA_OPTS="--progress"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage /usr/portage/local/layman/masterdriverz"
SYNC="rsync://jmd0/gentoo-portage"
USE="7z 7zip X Xaw3d a52 aac acl acpi alsa amd64 apache2 arts bacula-split-init bash-completion berkdb bitmap-fonts bzip2 cg cli cracklib crypt cups dga dlloader doc dri dvd dvdr emacs emul-linux-x86 fbcon firefox font-server fortran fuse gdbm gif gmp gnome gnomecanvas gnomedb gphoto2 gpm grammar graphviz gtk gtk2 gtkhtml gzip hddtemp iconv isdnlog java jikes joystick jpeg jpeg2k kde kexi libg++ lirc lzo lzw mjpeg mng mozilla mysql mysqli ncurses nls nptl nptlonly nsplugin opengl pam pcre perl php png ppds pppd python readline reflection samba session smp spl ssl tcpd transcode truetype truetype-fonts type1-fonts udev unicode unzip usb v4l v4l2 videos wmf wxwindows xine xinerama xml xorg xvid zlib" ALSA_CARDS="snd_ac97_bus snd_intel8x0" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="nvidia"
Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS
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| Code: | # equery l baselayout
[ Searching for package 'baselayout' in all categories among: ]
* installed packages
[I--] [ ~] sys-apps/baselayout-1.12.8-r5 (0) |
| Code: | # equery l shadow
[ Searching for package 'shadow' in all categories among: ]
* installed packages
[I--] [ ] sys-apps/shadow-4.0.18.1 (0) |
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My gentoo overlay
Instructons for overlay |
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GWilliam
Guru
Joined: 29 Dec 2005
Posts: 350
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| Posted: Sun Jan 21, 2007 1:24 am Post subject: |
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#NULL
Last edited by GWilliam on Sun Jul 25, 2010 3:23 pm; edited 1 time in total |
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GWilliam
Guru
Joined: 29 Dec 2005
Posts: 350
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| Posted: Sun Feb 11, 2007 8:57 pm Post subject: |
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#NULL
Last edited by GWilliam on Sun Jul 25, 2010 3:26 pm; edited 1 time in total |
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ppurka
Advocate
Joined: 26 Dec 2004
Posts: 3256
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| Posted: Sun Feb 11, 2007 11:57 pm Post subject: |
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| So, it is time to put a "solved" as you promised in some other thread |
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GWilliam
Guru
Joined: 29 Dec 2005
Posts: 350
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| Posted: Tue Feb 13, 2007 2:42 am Post subject: |
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#NULL
Last edited by GWilliam on Sun Jul 25, 2010 3:23 pm; edited 1 time in total |
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ppurka
Advocate
Joined: 26 Dec 2004
Posts: 3256
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| Posted: Tue Feb 13, 2007 4:05 am Post subject: |
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| GWilliam wrote: | Done!--and gladly.
I know I must seem pretty down on Gentoo most of the time, but... geez... I spend more time maintaining my system than actually using it and to be brutally honest, the quality has been sucking. |
I wonder how much time people spend on maintaining their systems 
As for me, it has been gentoo for more than 2 years. The first time I installed, I had used stage 1. The system worked nicely. However, I switched over to BobP's new stage 3 install with the "hot & new" gcc 3.4 within half a year. It is the same install I am working on at present (of course, I recompiled the whole system about twice to incorporate gcc/glibc upgrades). Nowadays, I rarely do any system upgrades (gcc/glibc) only restricting myself to upgrades in the applications. That too about once a month. I think the last time I performed a major system upgrade must have been several months ago, when there was a major upgrade for udev and dbus.
An hour or two of painful forum searching and package unmasking, and my maintainance work was over,- I let portage (and the wonderful update-world script) take care of the rest of the job
Over the years, I have written a couple of scripts which make my gentoo work easier. Now, I just can not be comfortable with the other distributions, since I can not get such precise control over the system. |
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GWilliam
Guru
Joined: 29 Dec 2005
Posts: 350
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| Posted: Wed Mar 07, 2007 3:33 am Post subject: |
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#NULL
Last edited by GWilliam on Sun Jul 25, 2010 3:23 pm; edited 2 times in total |
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GWilliam
Guru
Joined: 29 Dec 2005
Posts: 350
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| Posted: Wed Mar 07, 2007 3:57 am Post subject: |
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#NULL
Last edited by GWilliam on Sun Jul 25, 2010 3:23 pm; edited 1 time in total |
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