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Date: Sun, 22 Nov 2009 02:27:26 +0100
From: Bernt Hansson <bernt@bah.homeip.net>
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Cc: freebsd-questions@freebsd.org
Subject: Re: Dump
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Chris Rees said the following on 2009-11-21 17:44:
> 2009/11/21 Bernt Hansson <bernt@bah.homeip.net>:
>> Matthew Seaman skrev:
>>> Bernt Hansson wrote:
>>>> Hello list.
>>>>
>>>> I've been testing backups with dump, works well BUT
>>>> -L does not work. For example
>>>>
>>>> dump -0 -a -u -L -f /mnt/dump.home.full /dev/ad0s2d
>>> I believe that you need to tell dump the mount point of the file system in
>>> order for it to create a snapshot, rather than the device file for the
>>> partition. (ie. snapshotting only makes sense on a mounted read-write
>>> filesystem).
>>>
>>> Also, if you're dumping a snapshotted FS to a local file, then bump up the
>>> cachesize to improve performance a lot.  Add '-C 32' to your command-line.
>> Ok. I've tested this
>> dump -1 -a -u -L -C 64 -h 0 -f /usr/home/bernt/disk2/dump.backup.home.2
>> /usr/home
>>
>> The error is
>> mksnap_ffs: Cannot create /usr/home/.snap/dump_snapshot: Invalid argument
>> dump: Cannot create /usr/home/.snap/dump_snapshot: No such file or directory
>>
> 
> Just for sanity... Are you root?

Yes!

> Chris
>