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Date: Tue, 6 Nov 2012 13:14:08 +0100
From: Milan Obuch <freebsd-jail@dino.sk>
To: freebsd-jail@freebsd.org
Subject: Jails not starting for me after recent update (fix found)
Message-ID: <20121106131408.7c6628b3@zeta.dino.sk>
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X-List-Received-Date: Tue, 06 Nov 2012 12:19:18 -0000

Hi,

after updating a server to fresh 9.1-PRERELEASE jails are not starting
for me. I have following in rc.conf (somewhat sanitized):

jail_enable="YES"
jail_list="jail1 jail2 jail3 jail4"

jail_jail1_rootdir="/data/jail1"
jail_jail1_hostname="jail1"
jail_jail1_interface="bge0"
jail_jail1_ip="IP1"
jail_jail1_devfs_enable="YES"
jail_jail1_procfs_enable="YES"

jail_jail2_rootdir="/data/jail2"
jail_jail2_hostname="jail2"
jail_jail2_interface="bge0"
jail_jail2_ip="IP2"
jail_jail2_devfs_enable="YES"
jail_jail2_procfs_enable="YES"
jail_jail2_mount_enable="YES"
jail_jail2_fstab="/etc/fstab.jail2"

jail_jail3_rootdir="/data/jail3"
jail_jail3_hostname="jail3"
jail_jail3_interface="bge0"
jail_jail3_ip="IP3"
jail_jail3_devfs_enable="YES"
jail_jail3_procfs_enable="YES"
jail_jail3_mount_enable="YES"
jail_jail3_fstab="/etc/fstab.jail3"

jail_jail4_rootdir="/data/jail4"
jail_jail4_hostname="jail4"
jail_jail4_interface="bge0"
jail_jail4_ip="IP4"
jail_jail4_devfs_enable="YES"
jail_jail4_procfs_enable="YES"
jail_jail4_mount_enable="YES"
jail_jail4_fstab="/etc/fstab.jail4"

/etc/rc.d/jail version is
# $FreeBSD: src/etc/rc.d/jail,v 1.47.2.6 2012/10/26 18:06:49 obrien Exp

It worked before flawlessly, now it simply does not start, whole error
message is 'cannot start jail <jailname>'. I found jail comman is not
successfull, in script it is called this way:

eval ${_setfib} jail -n ${_jail} ${_flags} -i -c path=${_rootdir}
host.hostname=${_hostname} \ ip4.addr=\"${_addrl}\"
ip6.addr=\"${_addr6l}\" ${_parameters} command=${_exec_start} >
${_tmp_jail} 2>&1 \
</dev/null

In my case, I have

WITHOUT_INET6=YES
WITHOUT_INET6_SUPPORT=YES

in /etc/src.conf, and found everything works if I erase
ip6.addr=\"${_addr6l}\" from jail arg list, so it looks this way

eval ${_setfib} jail -n ${_jail} ${_flags} -i -c path=${_rootdir}
host.hostname=${_hostname} \
ip4.addr=\"${_addrl}\" ${_parameters} command=${_exec_start} >
${_tmp_jail} 2>&1 \
</dev/null

(lines wrapped by mail program).

I commented out options INET6 and SCTP from kernel configuration file,
if that matters.

Maybe this helps some one...
Regards,
Milan