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  1. Path: sparky!uunet!news.centerline.com!noc.near.net!news.Brown.EDU!qt.cs.utexas.edu!cs.utexas.edu!ut-emx!ibmchs!auschs!awdprime.austin.ibm.com!konopik.austin.ibm.com!konopik
  2. From: konopik@konopik.austin.ibm.com (Brad Konopik)
  3. Newsgroups: comp.unix.aix
  4. Subject: Re: remote /usr info needed
  5. Message-ID: <1992Nov16.184038.18067@awdprime.austin.ibm.com>
  6. Date: 16 Nov 92 18:40:38 GMT
  7. References: <1992Nov9.183050.22598@selway.umt.edu> <1992Nov10.215549.17360@ibmpa.awdpa.ibm.com>
  8. Sender: news@awdprime.austin.ibm.com (USENET News)
  9. Organization: IBM AIX Porting Center, Austin
  10. Lines: 74
  11.  
  12. I expect that since I saw a reply to this question in the AIX32 FORUM on 
  13. the internal IBMUNIX conference disk, someone has already e-mailed this
  14. answer back to the originator.  But, just in case...
  15.  
  16. ----- AIX32 FORUM appended at 18:21:58 on 92/11/12 GMT (by KRAEMERF at FRANVM3)
  17. Subject: Re: remote /usr info needed                                           
  18. From: hm292hu@unidui.uni-duisburg.de (Fred Hucht)                              
  19. Organization: Universitaet Duisburg GH                                         
  20.                                                                                
  21. In <1992Nov9.183050.22598@selway.umt.edu> mcguire@selway.umt.edu (Charles J McGuire) writes:
  22.                                                                                
  23. >I'm looking for info on whether it may be possible to "regress" from          
  24. >a diskfull machine to one that uses a remote /usr. I'm running AIX            
  25. >3.2.2*. Basically, I have several 220's with fully configured 400M            
  26. >disks that I would now like to reconfigure for use with a remote /usr.        
  27. >The only response I've been able to get from IBM support is to                
  28. >re-install the clients using "install for use with remote /usr".              
  29. >This means I'll have to go back thru the painful 3.2.2 updates which          
  30. >is something I'd really rather avoid if possible.                             
  31.                                                                                
  32. You can switch from standalone to remote /usr in the following way:            
  33.                                                                                
  34.  1) Create /sbin/net.info with the following contents:                         
  35.                                                                                
  36.     <client-IP> <server-IP> 0 69 0 0 <netmask> 0 ent0 1                        
  37.                                                                                
  38.     All IPs must be numeric. The last number specifies bnc, change to 0        
  39.     for DIX. /sbin/rc.boot reads this file to configure the network             
  40.     interface. Here we have no gateway between client and server and use       
  41.     standard ethernet.                                                         
  42.                                                                                
  43.  2) Edit /etc/filesystems: Comment out the complete /usr:-stanza and add       
  44.     a new one with your server-IP:                                             
  45. */usr:                                                                         
  46. *       dev             = /dev/hd2                                             
  47. *       vfs             = jfs                                                  
  48. *       log             = /dev/hd8                                             
  49. *       mount           = automatic                                            
  50. *       check           = false                                                
  51. *       type            = bootfs                                               
  52. *       vol             = /usr                                                 
  53. *       free            = false                                                
  54.                                                                                
  55. /usr:                                                                          
  56.         dev             = /usr                                                 
  57.         vfs             = nfs                                                  
  58.         nodename        = <server-IP>                                          
  59.         mount           = automatic                                            
  60.         check           = false                                                 
  61.         type            = boot                                                 
  62.         options         = ro,fg,hard,intr,retry=3                              
  63.                                                                                
  64.  3) Execute the command:                                                       
  65.                                                                                
  66.     bosboot -a -d <bootdisk> -p /usr/lib/boot/netdisk.proto                    
  67.                                                                                
  68.     with <bootdisk> being your bootdisk.                                       
  69.                                                                                
  70. With this procedure we have successfully installed a 32H that runs both        
  71. as /usr client and standalone (for demos). Note that you must export /usr      
  72. with root access and read-only to the client.                                  
  73.                                                                                
  74. Note that I don't take any responsibility for crashes and 888's :-)            
  75. Hope this helps...                                                             
  76.                                                                                
  77. Fred Hucht, Institute of Theoretical Physics, University of Duisburg, Germany  
  78. EMail: fred@hal6000.Uni-Duisburg.DE                                            
  79. ----- end of APPEND ------------------------------------------------
  80.  
  81. -- 
  82.   tcpnet: konopik@konopik.austin.ibm.com  |  Brad Konopik
  83.  ibmvnet: KONOPIK at AUSTIN               |  IBM AIX Porting Center, Austin
  84. internet: konopik.austin.ibm.com!konopik@ibmpa.awdpa.ibm.com
  85.    uunet: ..!uunet!ibmsupt!ibmpa!konopik.austin.ibm.com!konopik
  86.