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- Newsgroups: comp.unix.ultrix
- Path: sparky!uunet!stanford.edu!CSD-NewsHost.Stanford.EDU!CSD-Newshost!me
- From: me@Sunburn.Stanford.EDU (Martin Frost)
- Subject: swap configuration
- Message-ID: <ME.92Aug13140445@Sunburn.Stanford.EDU>
- Sender: news@CSD-NewsHost.Stanford.EDU
- Reply-To: me@CS.Stanford.EDU
- Organization: Computer Science Department, Stanford University.
- Distribution: comp
- Date: 13 Aug 92 14:04:45
- Lines: 45
-
- Can I run a kernel if some of the config'd swap devices are not present?
-
- We have some Ultrix 4.2A DECstation 5000/240s which have slightly different
- SCSI and disk configurations. I would like to be able to run the exact
- same kernel on all of them with different swap setups.
-
- I understand that I have to include the swap partitions in the kernel
- config file, and all but the first swap partition in /etc/fstab.
-
- My question is, can I run on a single kernel that includes multiple swap
- partitions in the config file, even though each system may have only a
- subset of those swap devices present?
-
- So I'd like to use a config entry like this:
-
- config vmunix on rz0a swap on rz0b and rz1b and rz10b dumps on rz0b
-
- (or maybe with even more swap devices listed). Then one fstab might
- include no swap partitions (defaulting to just rz0b), another would say
-
- /dev/rz1b:swap:sw:0:0:::
-
- and another
-
- /dev/rz10b:swap:sw:0:0:::
-
- and another possibly
-
- /dev/rz1b:swap:sw:0:0:::
- /dev/rz10b:swap:sw:0:0:::
-
- Will the kernel's config'd swap partitions' being absent cause any problem?
-
- By the way, the documentation (Ultrix System and Network Management, Vol.
- 2) suggests that you can only list two swap partitions in the configuration
- file, but I have a system running with four listed and seeming to work (I'm
- not sure we've ever actually swapped on all four). Is there a limit to how
- many the kernel can use?
-
- Thanks.
- --
- ------------------
- Martin Frost Computer Science Department, Computer Facilities
- Systems Programmer Stanford University, Stanford, CA 94305-2140
- me@CS.Stanford.EDU (or decwrl!labrea!me or mfrost@stanford.bitnet)
-