First VAX-11/730 VMS Boot! (was: Re: VAX-11/730 %BOOT-F-Unexpected Machine Check)

Mark J. Blair nf6x at
Sat Jun 13 19:45:34 CDT 2015

Thanks, I will read that. But how do I enter the reply command when the BACKUP program is hogging the console? Is there a VMS equivalent to the way a task can be suspended in UNIX with ^Z?

> On Jun 13, 2015, at 17:28, Glen Slick <glen.slick at> wrote:
>> On Sat, Jun 13, 2015 at 5:13 PM, Mark J. Blair <nf6x at> wrote:
>> I figured out pre-initializing the tape by trial and error, but now I'm stuck at knowing how to respond when I get the OPCON request for another tape. The system drive has too much data for one tape, but at least I managed to make it through writing one tape.
> Maybe this would apply here? I have never used this myself.
> OpenVMS System Manager’s Manual, Volume1: Essentials
> Order Number: AA-PV5MF-TK
> Managing Storage Media
> 9.8 Mounting Tape Volume Sets
> Sending Messages Back to Users
> After loading the continuation volume on the drive specified in the
> mount request, mount the volume by entering the REPLY command with one
> of the three qualifiers shown in Table 9–16. For more information
> about these qualifiers, refer to the OpenVMS DCL Dictionary.
> Table 9-16 REPLY Command Qualifiers for Continuation Volumes

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