[72] in Moira
Re: afs 3.0B and groups
daemon@ATHENA.MIT.EDU (marc@ATHENA.MIT.EDU)
Sun Apr 1 19:53:03 1990
From: marc@ATHENA.MIT.EDU
To: qjb@ATHENA.MIT.EDU
Cc: moiradev@ATHENA.MIT.EDU, afsdev@ATHENA.MIT.EDU
In-Reply-To: Your message of Sun, 01 Apr 90 15:22:41 -0400.
Reply-To: marc@MIT.EDU
Date: Sun, 01 Apr 90 19:52:25 EDT
AFS comment:
The watch realm has a few "guest" users, that is, users without athena
accounts. To keep them separate, I have assigned them uid's > 65536.
This has the interesting side effect that they can't own a volume
because I can't chmod the top level file. jis and I looked into this,
and the kernel data structures quite specifically make uid and gid
"short", so there is no way to get the information on the disk besides
of adb. Although qjb.root is probably not interested in owning
volumes, there may be users uid > 65536 who may be interested in doing
this in the future. This problem will exist on a larger scale with
Decorum's 128-bit uid's.
I don't know enough about AFS to really address this fully, and
although it isn't entirely a moira issue, someone should probably
thing about this and tell Transarc this problem exists.
Marc
