From - Sat Jan 22 09:58:02 2000 Path: reader4.news.rcn.net!feed1.news.rcn.net!rcn!hermes.visi.com!news-out.visi.com!newsfeed.wirehub.nl!remarQ-uK!rQdQ!supernews.com!remarQ.com!corp.supernews.com!SendSpamHere.ORG!SYSTEM From: system@SendSpamHere.ORG (Brian Schenkenberger, VAXman-) Newsgroups: comp.os.vms Subject: Re: CD burners for OpenVMS Alpha? Date: Thu, 20 Jan 2000 22:23:46 GMT Organization: TMESIS Software Lines: 73 Message-ID: <009E46F3.9220BB85@SendSpamHere.ORG> References: <3882EF2C.5AB52988@gtech.com> <009E444D.2561B167@SendSpamHere.ORG> <388324F7.ACE5A9DB@gtech.com> <009E4472.0E31E1C7@SendSpamHere.ORG> <3885B7B6.6FB31C9D@gtech.com> <3885EE4E.611C5E3C@gce.com> <3886B92D.BECBA645@gtech.com> <009E46A9.5A38C174@SendSpamHere.ORG> Reply-To: system@SendSpamHere.ORG X-Complaints-To: newsabuse@supernews.com Xref: reader4.news.rcn.net comp.os.vms:258906 In article <009E46E7.BE818B30@SendSpamHere.ORG>, system@SendSpamHere.ORG (Brian Schenkenberger, VAXman-) writes: >In article <3887212C.3A9161A5@advocatehealth.com>, djesys writes: >>"Brian Schenkenberger, VAXman-" wrote: >>> >>[snip] >>> Also, if you know what you're doing, you can use alternate roots which >>> can be selected from the console via boot command flags to alter and to >>> boot different VMS versions. [snip] >> >>??? >>How you do dat?? >> >>How would you get the boot block to point to a different version's >>VMB/APB at boot time? How are all the kernel bits sought? > >Who says you need independent VMBs/APBs??? Read the OpenVMS I&DS, >specifically, chapters which describe the bootstrapping of OpenVMS. > > >Here's a simple installation scenario for you to follow on Alpha for >installing both V7.2 and V7.2-1 on the same device. > >Assume a new disk capable of holding the two copies of VMS. > >Place the distribution in the CD-ROM dirve and boot VMS from the CD. > >Install OpenVMS V7.2 > >Boot the newly installed V7.2. > >Rename [000000]VMS$COMMON.DIR to [000000]VMS_V72$COMMON.DIR >Rename [000000]SYS0.DIR to [000000]SYS20.DIR Be sure to rename [000000]SYS0.DIR first! >At this point, you will have to HALT the system as it will not be able to >find SYS$SYSTEM:SHUTDOWN.COM. > >Now, to boot OpenVMS V7.2 from this drive, enter: > >>>> B -FL 20,0 > > >Now, it's time to install the OpenVMS V7.2-1. > >Put the V7.2-1 distribution into the CD-ROM and boot from the CD. > >Install V7.2-1 to the same device. Be sure to [PRESERVE] not [INITIALIZE] >the device. > >The installation will complain that [SYS20]SYSCOMMON.DIR is not an alias >of [000000]VMS$COMMON.DIR. Continue with the installation anyway. > >Boot the newly installed V7.2-1. > >Rename [000000]VMS$COMMON.DIR to [000000]VMS_V721$COMMON.DIR >Rename [000000]SYS0.DIR to [000000]SYS21.DIR Be sure to rename [000000]SYS0.DIR first! >At this point, you will have to HALT the system as it will not be able to >find SYS$SYSTEM:SHUTDOWN.COM. > >Now, to boot OpenVMS V7.2-1 from this drive, enter: > >>>> B -FL 21,0 > > >The same can be accomplished on the VAX side. I'll leave this as an >exercise for the reader. -- VAXman- OpenVMS APE certification number: AAA-0001 VAXman@TMESIS.COM