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Date: Fri, 17 Jul 2015 19:26:56 +0200
From: Per olof Ljungmark <peo@intersonic.se>
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CC: jamie@freebsd.org
Subject: Re: jail: /etc/rc: cannot create /dev/null: Operation not supported
References: <20150715215253.Horde._Uobbflf4-5sp0TjL7DgCrc@webmail.bsdlabs.com>
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On 2015-07-17 01:41, James Gritton wrote:
> On 2015-07-15 13:52, Per olof Ljungmark wrote:
>> FreeBSD 10.2-PRERELEASE #0 r284949
>>
>> The jail can be started, but when /etc/rc is executed:
>>
>> root@mar:/ # sh -x /etc/rc
>> + stty status ^T
>> /etc/rc: cannot create /dev/null: Operation not supported
>> + trap : 2
>> + trap 'echo '\''Boot interrupted'\''; exit 1' 3
>> + HOME=/
>> + PATH=/sbin:/bin:/usr/sbin:/usr/bin
>> + export HOME PATH
>> + [ '' = autoboot ]
>> + autoboot=no
>> + _boot=quietstart
>> + /sbin/sysctl -n vfs.nfs.diskless_valid
>> /etc/rc: cannot create /dev/null: Operation not supported
>> ...
>>
>> I have done the procedure several times before but never saw this one
>> before and don't know how to get around it.
>>
>> Ideas anyone? Any recent changes that can show up like the above?
>>
>> Thanks!
> 
> If it's trying to create /dev/null, I assume that the jail's /dev isn't
> mounted when /etc/rc is running.  Do you have mount.devfs set in the
> jail.conf, or jail_foo_devfs_enable in rc.conf (depending on your
> configuration)? For that matter, can you tell if the jail's /dev is
> mounted?
> 
> - Jamie

Yes, it's mounted.

Because I can set up jails with an identical procedure on other boxes we
run I suspect something is wrong with the install so I am starting from
scratch with this one.

While doing that, I am trying to sort another problem, namely to boot
zfs on root on a HP Proliant with a P410 controller, but that is another
story.

You know, if it was easy it would not be interesting...

Thanks!