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- Newsgroups: comp.unix.bsd
- Path: sparky!uunet!haven.umd.edu!darwin.sura.net!jvnc.net!nuscc!ntuix!eoahmad
- From: eoahmad@ntuix.ntu.ac.sg (Othman Ahmad)
- Subject: tar 'multivolume' bugs and workaround workound
- Message-ID: <1992Aug26.041547.26517@ntuix.ntu.ac.sg>
- Organization: Nanyang Technological University - Singapore
- Date: Wed, 26 Aug 1992 04:15:47 GMT
- Lines: 53
-
- gnu tar 1.10 which comes with 386bsd bin01 distribution "cannot" do multivolume
- compressed backup but can do uncompressed multivolume backup.
-
- There is a need to reduce the temporary file storage for systems with limited
- disk space. 0.1 method of distribution requires that the entire files must
- first be loaded before they can be extracted.
- 0.0 was better because it does not have to so was much faster and
- does not require a lot of tmp space.
-
- The solution was that I used to backup my root device is to
-
- tar -cvpzf ar.tar.Z
- tar -cvMf /dev/rfd1a
-
- To extract: the O option extracts to stdout instead of to files
-
- tar -xMOf /dev/rfd1a | tar xvzf -
-
- I do not manage to recover the symbolic links. Maybe I missed some options.
-
- Someone who wants to extract bin01, may try my method like this. This is only
- an idea. I do not need to do it because I have sufficient disk space(60Mbyte).
-
-
- cd /tmp
- mread "a:*.*" . ; for all disks
- tar -cvMf /dev/rfd1a
-
- ;to extract
-
- tar -xvMOf /dev/rfd1a | uncompress | cpio -idalm
-
-
- Anyone would like to try?
- I may do that using etc distribution which uses up 20 disketes. I have not
- even managed to download all of them. The filelists already take up the
- first 20 files. I cannot even extract bash which is what I need the most,
- after downloading the first 20 files.
-
- IMHO the utilities in etc01 should be distributed in normal compressed tar
- format as previously was done for 0.0 instead of being jumbled into
- 90 files which must all be downloaded together.
-
- Chris, are you reading?
-
-
-
- --
- Othman bin Ahmad, School of EEE,
- Nanyang Technological University, Singapore 2263.
- Internet Email: eoahmad@ntuix.ntu.ac.sg
- Bitnet Email: eoahmad@ntuvax.bitnet
-
-