Date: Fri, 10 May 2002 09:34:55 -0400 From: Bill Moran <wmoran@potentialtech.com> To: Len Zettel <zettel@acm.org> Cc: questions@FreeBSD.org Subject: Re: using dump Message-ID: <3CDBCC7F.3040904@potentialtech.com> References: <3CD5EC00.25D0C2@acm.org>
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Len Zettel wrote:
> It's not like I really know what I am doing or anything---
>
> My first priority in setting up FreeBSD 4.5 was to get my
> printer going well enough that I could get hard copy of
> things like file listings and man pages. That is going
> satisfactorily.
>
> Next priority is system backup. Per the handbook I am trying to
> use dump, but not to tape - I don't have a decent tape drive.
> However, I *do* have my system set up with mounting frames so
> that I can freely swap hard drives. Figure that ought to
> do reasonably well. (Anybody got any pointers/experience on
> hot swapping hard drives under FreeBSD?)
>
> At the moment my system is on a 6 GB hard drive. I seem to have
> succeeded in formatting a 40 GB hard drive as the slave on the
> same controller.
>
> So we do
> mount /dev/ad1s1e /mnt
> and it's there.
>
> Then we do
> dump -0u -f /mnt/usr/backup0 /usr
Use the -a flag to dump in addition to your other flags, that way
dump won't prompt to switch volumes. Otherwise it tries to pre-
caclulate how much data it can fit per tape. This isn't really
apropriate when you're dumping to another HDD.
>
> and get
>
> DUMP: Date of this level 0 dump: Sun May 5 21:52:36 2002
> DUMP: Date of last level 0 dump: the epoch
> DUMP: Dumping /dev/ad0s1g (/usr) to mnt/usr/backup0
> DUMP: mapping (Pass 1)[regular files]
> DUMP: mapping (Pass II) [directories]
> DUMP: estimated 746212 tape blocks on 19.16 tape(s).
> DUMP: dumping (Pass III) [directories]
> DUMP: Closing /mnt/usr/backup
> DUMP: Change Volumes: Mount volume #2
> DUMP: Is the new volume mounted and ready to go? ("yes" or "no") no
> DUMP: Do you want to abort? ("yes" or "no") yes
> DUMP: THe ENTIRE dump is aborted.
>
> then
> ls -l /mnt/usr
> -rw-r--r-- 1 root wheel 39260160 May 5 21:53 backup 0
>
> So: How far did I get? What is a good way to check what is or
> is not in backup0?
>
> What should I be doing to get the backup I want (preferably
> without novice-confusing error messages)?
>
> Should I be doing something else entirely?
>
> Any advice would be appreciated.
> -LenZ-
>
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>
--
Bill Moran
Potential Technology
http://www.potentialtech.com
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