On 28/08/2016 23:22, James Gritton wrote:
On 2016-08-28 15:42, Grzegorz Junka wrote:
I am trying to set up a Centos 6 jail. It fails with the following
error:
root@ultrabook:~ # service jail start centos6
Starting jails: centos6jls: jail "centos6" not found
.
I somehow managed to run it once by changing the start script from:
exec.start = "/bin/sh /etc/rc";
to
exec.start = "/etc/rc 3";
It started once but after I shut it down it shows the same error again
wherever I am trying to start it. This is what I have configured so
far:
root@ultrabook:~ # cat /etc/jail.conf
# Use the rc scripts to start and stop jails. Mount jail's /dev.
#exec.start = "/bin/sh /etc/rc";
#exec.stop = "/bin/sh /etc/rc.shutdown";
exec.clean;
allow.mount;
mount.devfs;
mount.fstab = "/usr/local/etc/fstab/$name";
devfs_ruleset = 4;
path = "/j/$name";
host.hostname = "$name.ultrabook.yoonka.com";
exec.consolelog = "/var/log/jail/$name";
centos6 {
exec.start = "/etc/rc 3";
ip4.addr = 127.0.2.1;
interface = lo0;
}
root@ultrabook:~ # cat /usr/local/etc/fstab/centos6
linsys /j/centos6/sys linsysfs rw 0 0
linproc /j/centos6/proc linprocfs rw 0 0
#tmpfs /j/centos6/lib/init/rw tmpfs rw,mode=777 0 0
/devfs /j/centos6/dev devfs rw,ruleset=4 0 0
I was following this example:
https://bluehatrecord.wordpress.com/2015/09/19/the-midnight-oil-jailing-centos6-in-freebsd-10-2/
but wanted to use the new configuration files. My system:
root@ultrabook:~ # uname -a
FreeBSD ultrabook.yoonka.com 10.3-RELEASE FreeBSD 10.3-RELEASE #0
r297264: Fri Mar 25 02:10:02 UTC 2016
[email protected]:/usr/obj/usr/src/sys/GENERIC amd64
How to fix or debug this 'jail "centos6" not found' error and start
the jail?
Grzegorz
I wonder if the jail exists as dying - does it show up in "jls -d"?
Also, for a verbose start, try "jail -v -c centos6". That shows
commands that are run when creating the jail, and may pinpoint where
the trouble is.
- Jamie
No, 'jls -d' doesn't show anything but every time I try to start the
jail new mounts from the jail's fstab are made, e.g. just after starting
FreeBSD:
linsysfs on /j/centos6/sys (linsysfs, local)
linprocfs on /j/centos6/proc (linprocfs, local)
devfs on /j/centos6/dev (devfs, local, multilabel)
devfs on /j/centos6/dev (devfs, local, multilabel)
Then after trying to start the jail again:
linsysfs on /j/centos6/sys (linsysfs, local)
linprocfs on /j/centos6/proc (linprocfs, local)
devfs on /j/centos6/dev (devfs, local, multilabel)
devfs on /j/centos6/dev (devfs, local, multilabel)
linsysfs on /j/centos6/sys (linsysfs, local)
linprocfs on /j/centos6/proc (linprocfs, local)
devfs on /j/centos6/dev (devfs, local, multilabel)
devfs on /j/centos6/dev (devfs, local, multilabel)
After unmounting all those and trying again:
root@ultrabook:/home/g # jail -v -c centos6
centos6: run command: /sbin/ifconfig lo0 inet 127.0.2.1 netmask
255.255.255.255 alias
centos6: run command: /sbin/mount -t linsysfs -o rw linsys /j/centos6/sys
centos6: run command: /sbin/mount -t linprocfs -o rw linproc /j/centos6/proc
centos6: run command: /sbin/mount -t devfs -oruleset=4 . /j/centos6/dev
centos6: jail_set(JAIL_CREATE) persist name=centos6 allow.mount
devfs_ruleset=4 path=/j/centos6
host.hostname=centos6.ultrabook.yoonka.com ip4.addr=127.0.2.1
centos6: created
centos6: run command in jail: /etc/rc 3
centos6: jail_set(JAIL_UPDATE) jid=3 nopersist
root@ultrabook:/home/g # jls
JID IP Address Hostname Path
root@ultrabook:/home/g # jls -d
JID IP Address Hostname Path
Grzegorz
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