Article View: comp.sys.ibm.pc.rt
Article #1532TAR warning for AIX 2.2.1
From: 6eorge Rankin.
Date: Thu, 12 Jan 1989 02:25
Date: Thu, 12 Jan 1989 02:25
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2210 bytes
We just got AIX 2.2.1 for the RT, and it looks pretty good. It has real sendmail, supports NFS, and even symbolic links! This is hot stuff for us AIX dullards :-) There is a rather severe problem with tar, however. When a directory with hard links is archived, the links all point to the first linked item. Rather odd things happen when the archive is restored. Repeat this problem by: %mkdir /tmp/foo %cd /tmp/foo %touch a %touch b %ln a c %ln b d %cd .. %tar cf badstuff foo %tar tvf badstuff rwxrwx---340/19 0 Jan 11 18:08 1989 foo/ rw-rw----340/19 0 Jan 11 18:08 1989 foo/a rw-rw----340/19 0 Jan 11 18:08 1989 foo/b rw-rw----340/19 0 Jan 11 18:08 1989 foo/c linked to foo/a rw-rw----340/19 0 Jan 11 18:08 1989 foo/d linked to foo/a Notice that file "d" is linked to "a", which is incorrect. (By the way, this is a simulated example... the RT is not yet on the net.) This problem became apparent when all of my local programs became "compress". As far as I know, our install completed with no problems. The disks are ok, and linked files normally point to to the correct place. I suspect somebody goofed when modifying tar to make it handle SYMBOLIC links, and then didn't check that hard links worked. I have reported the problem to my local rep. and assume that IBM will fix the problem soon. Meanwhile, I'll be installing gnu-tar... *************************************************************************** George Rankin Department of Research and Assessment Springfield Public School District #19 525 Mill Street Springfield Oregon (503) 726-9529 UNIX in a school district? Don't look, Martha!
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!ames!mailrus!cornell!uw-beaver!uoregon!rankin From: rankin@uoregon.uoregon.edu (6eorge Rankin.) Newsgroups: comp.sys.ibm.pc.rt Subject: TAR warning for AIX 2.2.1 Summary: TAR fails on links for AIX 2.2.1 Keywords: AIX tar problems Message-ID: <3501@uoregon.uoregon.edu> Date: 12 Jan 89 02:25:22 GMT Reply-To: rankin@drizzle.UUCP (6eorge Rankin.) Distribution: na Organization: University of Oregon, Computer Science, Eugene OR Lines: 50