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- From: nessus@mit.edu (Douglas Alan)
- Subject: gtar bug report
- Message-ID: <9211062014.AA07669@twitch.media.mit.edu>
- Sender: gnulists@ai.mit.edu
- Organization: GNUs Not Usenet
- Distribution: gnu
- Date: Fri, 6 Nov 1992 10:14:51 GMT
- Approved: bug-gnu-utils@prep.ai.mit.edu
- Lines: 39
-
- I reported this bug a while back to gnu.utils.bug, but Michael
- Bushnell told me recently that postings to gnu.utils.bug might not
- make it to the right place, so here it is again, just in case.
-
- BUG REPORT:
-
- Program: GNU tar. Version: 1.10. Architecture: DEC MIPS Ultrix 4.2a
- Problem: I used GNU tar to copy a large filesystem (800 megabytes)
- from one machine to another, like so:
-
- # cd /u2; gtar olcf - . | rsh fire "(cd /u2; gtar xfp -)"
-
- I used the "-o" option because FIRE is an NFS server and does not have
- a copy of the password file used on MEDIA-LAB (the source machine),
- nor does it run YP; therefore, it would not know what to do with the
- user names used in a new format GNU tar file. (An NFS server doesn't
- need to know user names -- only the uid's are significant.) The files
- all made it over to FIRE fine, but there were some problems with
- permissions and ownership. Every copied directory on FIRE was copied
- without preserving the permissions of the directory: every directory
- made by gtar on FIRE ended up in mode 777. Furthermore, not all of
- the ownership information made it through the copy. Most of the files
- now on FIRE ended up with the correct ownership, but sprinkled
- throughout the filesystem in an apparently random manner were files
- left owned by root. (These files were not owned by root on
- MEDIA-LAB.)
-
- SUGGESTION:
-
- It should be possible to have an archive store uid's rather than user
- names without going into old archive format mode. A user may want to
- copy files to a system without a password file yet still gain the
- advantages provided by the new archive format.
-
- |>ouglas /\lan
- MIT Media Lab
- Systems Programming Group
- <nessus@mit.edu>
-
-