[Info-vax] Backup TK50 tapes

[Stephen Hoffman]

On 2013-02-27 14:20:51 +0000, Bob Koehler said:

> In article <nospam-8D665D.14283527022013 at news.chingola.ch>, Paul Sture 
> <nospam at sture.ch> writes:
>> 
>> And IIRC 11/780 boot floppies were written in RT-11 format, which was a
>> lot simpler.
> 
>    IIRC, 11/780 boot floppies had a boot block for the LSI-11, and
>    VMB.EXE was stored on the floppy.  VMB.EXE reads Files-11 disks
>    and finds the OS.

Yes; VMB.EXE was on console storage on various VAX systems.

The Itanium bootstrap is constructed relatively similarly, in that it 
booted from a FAT-format volume, and EFI finds and loads IPB.EXE, and 
IPB.EXE then reads in necessary contents from the Files-11 disk and 
continues with the bootstrap.  Like VMB.EXE on a console-storage 
VAX[1], IPB.EXE is transitional.  The SYSBOOT.EXE secondary bootstrap 
image that's loaded into memory by IPB.EXE operates in the native 
(target) environment.

[1] Yeah; I know about PolarStar.  But thanks for asking.


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