Newsgroups: comp.unix.sysv386
Path: utzoo!telly!problem!nyama!jad
From: jad@nyama.UUCP
Subject: Re: Backup of DOS partitions
Message-ID: <1991May13.163905.25912@nyama.uucp>
Keywords: dos NDOSINODES ISC
Sender: jad@nyama.uucp (Jose A. Dias)
Reply-To: jad@nyama.UUCP (Jose A. Dias)
Organization: Nyama Nyama
References: <3799@sixhub.UUCP> <638@bigfoot.first.gmd.de> <6056@eastapps.East.Sun.COM>
Date: Mon, 13 May 1991 16:39:05 GMT
Lines: 45

In <6056@eastapps.East.Sun.COM>, gsteckel@east.sun.com (Geoff Steckel - Sun BOS Hardware CONTRACTOR) writes:
>
> In article <3799@sixhub.UUCP>, davidsen@sixhub.UUCP (Wm E. Davidsen Jr) writes:
> |> Does anyone have software which will backup the DOS partition on the
> |> hard disk from unix or xenix? Please don't suggest using dd, if you've
> |> tried you know why that's not the solution.
> |> would be useful but not required.
>In article <638@bigfoot.first.gmd.de> tmh@prosun.first.gmd.de (Thomas Hoberg) writes:
> Well on ISC at least, it's possible to simply mount the DOS file system and use
> find, cpio or tar. If you have VPIX you could run one of the DOS cpio's in a
> pipe. Even PC-Backup on a file (even UNIX char special?) should work.
>
>I tried the mount approach.  tar and cpio repeatedly save the first file found
>over and over and over and ...  Has anyone gotten this to work correctly,
>and if so, how?  I haven't tried PAX yet.  Of course, I may have set something
>up wrong...

Well, this is what /etc/dfspace says I have mounted:

/              :	 Disk space:   7.16 MB of  20.48 MB available (34.98%).
/usr           :	 Disk space:   8.34 MB of  52.67 MB available (15.85%).
/usr/u         :	 Disk space:   6.87 MB of  14.62 MB available (47.01%).
/usr/src       :	 Disk space:   7.45 MB of  31.19 MB available (23.89%).
/usr/spool/news:	 Disk space:   9.70 MB of  32.83 MB available (29.54%).
/dos           :	 Disk space:   3.45 MB of  12.47 MB available (27.67%).

Total Disk Space:        	      42.99 MB of 164.29 MB available (26.17%).
(not much, but enough for me :-)

Now, every saturday morning I run sysadm backup to backup the entire
system, dos and all, with incremental backups, relative to the last full
backup not just any backup, nightly.  You do have to make sure
that NDOSINODES is set high enough, or Unix will not be able to read
in all of the dos "inodes" into core.  (There are no real dos "inodes" but
unix, (my unix? ISC2.2) maintains an incore list of inodes for all dos
files.)  The first few times that I was doing a backup of /dos I would
hit the same problem.  So I increased NDOSINODES and rebooted.  Works like
a charm now... (standard disclaimer about this work for me on my system
aply:-)

>	geoff steckel (gwes@wjh12.harvard.EDU)
>			(...!husc6!wjh12!omnivore!gws)

-- 
Jose Dias		jad@nyama.UUCP		 Who me? I didn't say anything!