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Newsgroups: comp.unix.bsd Path: sserve!manuel!munnari.oz.au!mips!mips!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