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From: jsalter@ibmpa.awdpa.ibm.com
Newsgroups: comp.unix.aix
Subject: Re: how to recover from a damaged system disk?
Message-ID: <1991May6.165412.16199@ibmpa.awdpa.ibm.com>
Date: 6 May 91 16:54:12 GMT
References: <80856@bu.edu.bu.edu>
Sender: news@ibmpa.awdpa.ibm.com (news ego)
Reply-To: jsalter@slo.awdpa.ibm.com (Jim Salter)
Organization: IBM PSP Development, Palo Alto, CA
Lines: 24

In article <80856@bu.edu.bu.edu> jdh@bu-pub.bu.edu (Jason Heirtzler) writes:
>Can someone who understands the boot procedure in AIX 3.1 explain
>how you recover from a damaged system disk, or alternatively how
>to restore the whole system from a backup tape?  The procedure of
>actually restoring the files from tape is pretty straight forward,
>but there's some special magic involved in making the system
>partitions.   It looks like bosboot or mkboot can make a bootable
>disk or tape, but what to do beyond that is pretty confusing.

>If you boot from a floppy diskette, does this create a ram disk, or
>does this copy something to the paging area and boot from there, like
>BSDish unixes do?  Also, what's the significance of the logical volume
>named /blv?  Are there any special requirements, like using contigious
>physical partitions there or on the root lv?

Check out the boot description in the /usr/lpp/bos/bsdadm document.  I
believe it is still up-to-date.  Did the /usr/lpp/bos/README not mention
this?  I thought it did...

>jdh@pub.bu.edu

jim/jsalter  IBM PSP, Palo Alto  T465/(415)855-4427  VNET: JSALTER at AUSVMQ
Internet: jsalter@slo.awdpa.ibm.com         UUCP: ..!uunet!ibmsupt!jsalter 
"IBM part #23521, aka Lt. Commander Data"    The stuff above is on my own.