29 Mar
2005
29 Mar
'05
7:22 a.m.
On Mon, 28 Mar 2005, Jim Leonard wrote:
Hmm, cool.
I'm not using floppies at all. This is with hard disks.
Vintage Computer Festival wrote:
It's definitely 512 on DOS 3.3.
MS-DOS 3.3 has a limit of 512 entries in the root
directory. I have a
need to put more than this.
I seem to remember that the limit is actually 224. Another
question:
When using the SUBST command in MS-DOS, you cannot aparently substitute
the C: drive. I seem to recall that MS-DOS 6.0 allowed this, although I
might be confusing that with the ability of LANtastic to redirect the C:
drive to a network drive.
Checking 6.22 right here... works fine (I did "subst d: c:\"). So yes,
you can. At any rate,
what I'm trying to do is overcome the limit of 512 file
entries in an MS-DOS 3.3 root directory.
SUBST won't help you do this unless you don't use a floppy at all, like:
subst a: c:\temp
...which works fine. My question is: Why?
I'm restoring files from VHS backup tapes. The files were all originally
stored and backed up from the root directory. On the tapes I used to test
my process, none had more than 512 files archived. The backup software
only restores *to the same exact drive and path* that the files were
archived from (in this case C:\). I'm running into some tapes that have
more than 512 files backed up frm the root directory. These were done
back in the 1980s. I can't figure out how they did it, but there they
are.
Once a backup is made, you cannot add to the backup, so that's not how
they did it.
Anyway, what I am trying to do so that we don't have to make two runs on
each tape (each tape takes 2 hours to dump) is to re-map the C: drive to a
directory so that we can overcome the 512 entry limit.
--
Sellam Ismail Vintage Computer Festival
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