[Info-vax] how to ignore (some?) errors during backup ?

[Paul Sture]

In article <045AZrSzxVXT at eisner.encompasserve.org>,
 koehler at eisner.nospam.encompasserve.org (Bob Koehler) wrote:

> In article <paul.nospam-271C2D.20152902052011 at pbook.sture.ch>, Paul Sture 
> <paul.nospam at sture.ch> writes:
> > 
> > I think this is a side effect of /IMAGE.  BACKUP gets a list of files 
> > when it starts but they file has gone by the time BACKUP gets around to 
> > copying it.
> 
>    The error message is due to getting the list first and trying to
>    save the file later, whethre /IMAGE is used or not.  It does
>    not explain BACKUP failing to complete.

I believe the behaviour changed here.  /IMAGE does an implicit /FAST in 
recent versions.  Here are the relevant texts which can be found under
HELP BACKUP/IMAGE and HELP BACKUP/FAST respectively:

"To use the /IMAGE command
qualifier, you need write access to both the index file
(INDEXF.SYS) and the bit map file (BITMAP.SYS), or the input
medium must be write-locked."


"To perform a fast file scan, you need write access to the
 INDEXF.SYS file on the input medium or the input medium must
 be write-locked."

(/FAST apparently doesn't need write access to BITMAP.SYS)

-- 
Paul Sture