[Simh] Oh, my

[Sergiusz Jarczyk]

Hi Nathan

2010/10/10 Nathan Cutler <presnypreklad at gmail.com>:
> I seem to have gotten myself into a bind. (SimH/VAX OpenVMS 7.3)
>
> I used the Standalone backup functionality to make a backup of my system
> disk (to a larger container - thanks to Tim for help on this). The
> BACKUP/IMAGE/VERIFY appeared to go well.
>
> Then, instead of just booting the new system disk, I stupidly decided go to
> one data disk (I had been using two). Stupidly, I deleted the second data
> disk (labeled DATA2) but forgot to edit the system startup procedures to
> reflect this.
>
> The SYSTARTUP_VMS.COM script contains "MOUNT/SYSTEM DUA2: DATA2" and when
> the startup process hits this command, the system chokes on it, demanding
> (repeatedly) that I mount DATA2. However, I can't mount it because it has
> been destroyed. This forces me to "power off" the "machine" (CTRL-E to the
> sim> prompt and then exit).
>
> To fix this, I did a conversational boot. This does get me to a $ prompt but
> a whole bunch of files seem to be missing. Critically, SYSTARTUP_VMS.COM is
> not where it's supposed to be:
>
> $ dir sys$manager
> dir sys$manager
> %DIRECT-E-OPENIN, error opening LIVVAX$DUA0:[SYS$STARTUP]SYS$MANAGER.*;* as
> input
> -RMS-E-DNF, directory not found
> -SYSTEM-W-NOSUCHFILE, no such file
> $ type sys$manager:systartup_vms.com
> type sys$manager:systartup_vms.com
> %TYPE-W-SEARCHFAIL, error searching for
> SYS$MANAGER:[SYS$STARTUP]SYSTARTUP_VMS.COM;
> -RMS-F-DEV, error in device name or inappropriate device type for operation
> $
>
> Suggestions, anyone?

What you're looking for is a 'conversational bootstrap' - in UN*X
environments, 'single user mode'... In general, you need:
>>> B/1
@GENBOO

Sergiusz