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From: Judy Anderson <JAnderson AT rocketsoftware DOT com>
To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Date: Mon, 14 Sep 2009 09:21:51 -0400
Subject: Strange tar error with --format=ustar: value 4294967295 out of  gid_t range 0..2097151
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I need to send a collection of files to a Z/OS machine from a windows machi=
ne.  When we were on Windows 2000, we just used "pax".  But apparently Micr=
osoft has discontinued pax in Win2003.  So we searched for a solution.  Cyg=
win tar SAID it would produce pax format files, but the Z/OS machine doesn'=
t like them if they contain long file names.  However, tar will ALSO produc=
e ustar format, and pax on the mainframe is able to read those.  So we were=
 cooking with gas.

Except on my usual development machine, where I get the error:

E:\yduJ> c:\cygwin\bin\tar cf foo.tar --format=3Dustar foo
/usr/bin/tar: value 4294967295 out of gid_t range 0..2097151
/usr/bin/tar: Exiting with failure status due to previous errors

It works FINE on the official build machine, just not MINE.  So I reran Cyg=
win setup and reinstalled and rebooted.  No help.  I started making all sor=
ts of wrong guesses about this.  Eventually I discovered a directory on my =
machine which DID tar up.  Then I realized what was different:  I had made =
or edited at least one file USING EMACS in all the other directories.  Yep,=
 added a file using emacs and the new directory couldn't be tarred either.

I went and got emacs version 23.1.1 from gnu hoping it would be better, but=
 it's not.  Tar is version 1.21.

I figured out a workaround, which is to say --group=3D1 to specify groups, =
so I'm OK now, but it would be nice not to need that, since it's only for m=
y development machine.  The build machine of course works only on the cvs c=
hecked out files and does not require this workaround.

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