A.P. Lawrence

cpio to file in blocks

If this isn't exactly what you wanted, please try our Search (there's a LOT of techy and non-techy stuff here about Linux, Unix, Mac OS X and just computers in general!):

From - Wed Dec  6 05:59:27 2000
Path: news.randori.com!newsfeeder.randori.com!newsfeed.stanford.edu!arclight.uoregon.edu!hammer.uoregon.edu!enews.sgi.com!hobbes.caldera.com!johnd
From: johnd@sco.COM (John DuBois)
Newsgroups: comp.unix.sco.misc
Subject: Re: Backup in 650 mb chunks as files.
Date: 6 Dec 2000 07:11:51 GMT
Organization: The Santa Cruz Operation, Inc.
Lines: 22 Message-ID: <90korn$4nv$1@hobbes.caldera.com> References: <90bfq1$gct$1@uranium.btinternet.com>
NNTP-Posting-Host: tahoe.caldera.com
Xref: news.randori.com comp.unix.sco.misc:69571
X-Mozilla-Status: 8010
X-Mozilla-Status2: 00000000

In article <90bfq1$gct$1@uranium.btinternet.com>,
gerryb <gerryb@careprovider.com> wrote:
+I cannot see how to use tar or cpio to create extents as files unless it is
+using a device.

You can marry a file to a device.  E.g.:

# for i in 1 2 3; do >/tmp/arch$i; done
# marry -a /tmp/arch[123]
# find . -print|cpio -o -K 300 -C 102400 -O/dev/marry/tmp/arch1,/dev/marry/tmp/arch2,/dev/marry/tmp/arch3
# marry -d /tmp/arch[123]

# cat /tmp/arch[123]|cpio -it >/dev/null && echo OK
1374 blocks
OK

Control Spam and Viruses

Run your own mailserver

        John
-- 
John DuBois     johnd@caldera.com       KC6QKZ/AE
I wish to God these calculations had been executed by steam. - Charles Babbage