From mboxrd@z Thu Jan 1 00:00:00 1970 To: 9fans@cse.psu.edu From: Alt Message-ID: <3AFEEEEB.21387D41@p21.kiev.ua> Content-Type: text/plain; charset=iso-8859-2 Content-Transfer-Encoding: 7bit References: , <3AFD060F.29F72B32@p21.kiev.ua> Subject: [9fans] Re: Arguments concerning cross mounting /usr/local, /opt Date: Mon, 14 May 2001 08:37:30 +0000 Topicbox-Message-UUID: 9f7d6556-eac9-11e9-9e20-41e7f4b1d025 2 "Plaen Nein" users: I guess it might be interesting here: [skip] > ????? "Alt" == Alt ?alter@p21.kiev.ua? writes: > > Alt? Marc D Bumble wrote: > ?? When using UNIX, what are the arguments against cross mounting > ?? /usr/local? Is it better to cross mount /opt? > > Alt? What do you mean under "cross mount" ? > > I mean using NFS to mount /opt and/or /usr/local across a network of > > machines. I have received excuses that cross mounting the file system > > cause non specific incompatibilities. That cross mounting a directory > > may cause licensing problems for commercial software. Most of the > > excuses, I believe, are nonsense, or should not be a deterrent, but I > am not an OS specialist. I am seeking something in writing. I > > thought OSs would be well beyond the stage of standardization by now. > ! BY THE WAY, there is no such problems in PLAN-9. > Without cross mounting, systems quickly degrade into software version > > inconsistencies, maintenance difficulties, lack of standardization > across network nodes, etc. Plus it just makes the admin's life more > > difficult. > Oh, I understand. Yea.You see, UNIX is not the best choice for the such things. PLAN-9 (and probably Oberon) does it much better. UNIX is a mainframe. --Alt. P.S. I have an old idea of the "multy-dimetional file system". There will be no troubles like this. > ?? What was the intended difference between the two mount points? > > Alt? You mean whet difference between /opt and /usr/localWell, > Alt? answer is easy. But first answer me, why the microsoft used > Alt? '\' but not '/' in separator in path names ??? ... and why > Alt? they used "\h0d\h0a" like a carrier return instead "\h0a" ??? > > Alt? Simple, to make the MSux-DOS incompatible with the UNIX. > Alt? Same with several UNIXes there was a lot of companies who > Alt? made their UNIXes (better say - "UNIX - looklike OSes"), and > Alt? they stickup their catalogs in the several places. Same is > Alt? goes with several Linux installations. > > ?? I'm seeking a generic UNIX answer. > ?? > > Alt? Well, try to check out native UNIX > Alt? mans. http://plan9.bell-labs.com > > Alt? --Alt. > [skip]