Date: Mon, 25 Mar 2002 13:08:04 +0300 From: "Victor Polyakov" <victor@tvcom.ru> To: <freebsd-hackers@freebsd.org> Subject: jail + mount_union problem Message-ID: <002601c1d3e4$f448cae0$6b40f650@niokr2>
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We have a system with some jails. First jail's home directory is =
/data/jails/ref. Then, we are running script "crash" under root:
-----------
#! /usr/local/bin/bash
SRC=3D/data/jails/ref
DEST=3D/data/jails/$1
mkdir $DEST
mkdir $DEST/usr
mount_union -b $SRC/usr $DEST/usr
mkdir $DEST/bin
mount_union -b $SRC/bin $DEST/bin
mkdir $DEST/root
mount_union -b $SRC/root $DEST/root
jail /data/jails/$1 jail$1 $2 /bin/csh /root/scripts/runjail
mount_union -b $SRC/usr $DEST/usr
mount_union -b $SRC/bin $DEST/bin
mount_union -b $SRC/root $DEST/root
--------------
Originally, this script was designed to make a clone of the first jail. =
Contents of /root/scripts/runjail:
-------------
sshd
/usr/local/apache/bin/apachectl start
cd /usr/local/mysql
bin/safe_mysqld --user=3Dmysql &
cron
-------------
After this, system hangs up. When trying to reboot with "boot -sv" we =
see:
...
...
trying /sbin/init...
and freebsd halts again. There is no way to boot up. Of course, fsck =
reports "no problem" and checksum of /sbin/init is correct. The only way =
to continue working is to run "upgrade" from the instalation CD.
We are using freebsd 4.5.
May be anybody knows solution for this problem?
Victor Polyakov (victor@tvcom.ru)
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2> We have a system =
with some=20
jails. First jail's home directory is /data/jails/ref. Then, we are =
running=20
script "crash" under root:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>-----------</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>#! /usr/local/bin/bash</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial=20
size=3D2>SRC=3D/data/jails/ref<BR>DEST=3D/data/jails/$1<BR></FONT><FONT =
face=3DArial=20
size=3D2></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>mkdir $DEST</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>mkdir $DEST/usr<BR>mount_union -b =
$SRC/usr=20
$DEST/usr</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>mkdir $DEST/bin<BR>mount_union -b =
$SRC/bin=20
$DEST/bin</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>mkdir $DEST/root<BR>mount_union -b =
$SRC/root=20
$DEST/root</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>jail /data/jails/$1 jail$1 $2 /bin/csh=20
/root/scripts/runjail</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>mount_union -b $SRC/usr =
$DEST/usr</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>mount_union -b $SRC/bin =
$DEST/bin</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>mount_union -b $SRC/root=20
$DEST/root<BR></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>--------------</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Originally, this script was designed to =
make a=20
clone of the first jail. Contents of /root/scripts/runjail:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>-------------</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>sshd<BR>/usr/local/apache/bin/apachectl =
start<BR>cd=20
/usr/local/mysql<BR>bin/safe_mysqld --user=3Dmysql =
&<BR>cron</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>-------------</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>After this, system hangs up. When =
trying to reboot=20
with "boot -sv" we see:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>trying /sbin/init...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>and freebsd halts again. There is no =
way to boot=20
up. Of course, fsck reports "no problem" and checksum of /sbin/init =
is=20
correct. The only way to continue working is to run=20
"upgrade" from the instalation CD.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>We are using freebsd 4.5.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>May be anybody knows solution for this=20
problem?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Victor Polyakov (<A=20
href=3D"mailto:victor@tvcom.ru">victor@tvcom.ru</A>)</DIV></FONT>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV></BODY></HTML>
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