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Date:      Thu, 5 May 2016 18:47:25 +1000
From:      Graham Menhennitt <graham@menhennitt.com.au>
To:        freebsd-current@freebsd.org
Subject:   Re: boot fails "Can't stat /dev/da0a: No such file or directory"
Message-ID:  <4ec4e751-5ac7-d793-9356-5af4327b824d@menhennitt.com.au>
In-Reply-To: <20160503095925.GC5892@brick>
References:  <57247294.4050607@menhennitt.com.au> <57266A7E.1070500@menhennitt.com.au> <20160503084251.GB5892@brick> <57286DC6.3010403@menhennitt.com.au> <20160503095925.GC5892@brick>

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On 3/05/2016 07:59 PM, Edward Tomasz Napiera=C5=82a wrote:
> On 0503T1922, Graham Menhennitt wrote:
>> On 3/05/2016 06:42 PM, Edward Tomasz Napiera=C5=82a wrote:
>>> On 0502T0643, Graham Menhennitt wrote:
>>>> On 30/04/2016 06:53 PM, Graham Menhennitt wrote:
>>>>> Hi all,
>>>>>
>>>>> I have a USB disk that I use for backup. Up till now, it's mounted
>>>>> without any problems at boot time. After updating to -current as of
>>>>> yesterday, it doesn't mount and causes the boot to fail.
>>>>>
>>>>> My /etc/fstab looks like:
>>>>>
>>>>>     # Device    Mountpoint    FStype    Options    Dump    Pass#
>>>>>
>>>>>     /dev/ada0s1a    /        ufs    rw    1    1
>>>>>     /dev/ada0s1b    none        swap    sw    0    0
>>>>>     /dev/da0a    /backup        ufs    rw,late    1    1
>>>>>
>>>>>
>>>>> I tried adding the "late" to fix the problem, but it doesn't help.
>>>>>
>>>>> The error message is:
>>>>>
>>>>>     /dev/ada0s1a: clean...
>>>>>     Can't stat /dev/da0a: No such file or directory
>>>>>     Unknown error; help!
>>>>>     ERROR: ABORTING BOOT (sending SIGTERM to parent)!
>>>>>
>>>>>
>>>>> (hand transcribed - maybe typos)
>>>>>
>>>>> Can anybody help, please.
>>>>>
>>>>> Thanks,
>>>>>     Graham
>>>> Sorry, I forgot to mention...
>>>>
>>>> I commented out that line from fstab which allows the boot to comple=
te.
>>>> I can then manually mount it without any problems. It looks like the
>>>> device doesn't get created early enough.
>>> Have you run mergemaster after upgrade?  In particular, do you have
>>> the current version of /etc/rc.d/mountcritlocal?
>>>
>> Thanks for replying, Edward. Yes I've installed that file. The delay
>> that Dave told me about has fixed the problem.
> Still, it would be nice if this worked by default.  The updated
> mountcritlocal script should wait for USB to release root tokens
> if the mount initially fails,
>
Ok, I tried to do a bit of diagnosis here. I took out the delay from
/boot/loader.conf and I added "set -x" to the top of
/etc/rc.d/mountcritlocal (before the start of the mountcritlocal_start()
function definition). I then rebooted. I didn't see any shell command
output from the "set -x" before the error occurred. That means that the
error is happening before /etc/rc.d/mountcritlocal is being read.

When I put the delay back in and boot, I see the shell commands after
the filesystems are mounted (and, hence, after the error would have
occurred if the delay wasn't there). So I don't think mountcritlocal is
going to help me.

I'm not sure what else to try. if you have any suggestions, I can do
some experimenting. Is there a simple way to capture the output from the
rc.d scripts?

Graham




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