[net.micro.pc] pc-dos 3.1

sommers@topaz.ARPA (Mamaliz @ The Soup Kitchen) (06/29/85)

I just tried to bring PC-DOS 3.1 up on my AT.  DOS is the 4th partition on 
the disk.  I already have 3.0 up and do NOT want to have to backup and
reformat the whole disk (I trust the backup facilities in XENIX and PC-DOS
about as much as I trust CS professors).

I keep getting an error that there is not enough room on the system disk
to bring the system up.  This has to be a crock, I deleted until I had at
least a meg of space.  Does anybody have a fix so that I can update?
-- 
liz sommers
uucp:   ...{harvard, seismo, ut-sally, sri-iu, ihnp4!packard}!topaz!sommers
arpa:   sommers@rutgers

hamilton@uiucuxc.Uiuc.ARPA (07/04/85)

/* Written  6:21 pm  Jun 28, 1985 by sommers@topaz.ARPA in uiucuxc:net.micro.pc */
/* ---------- "pc-dos 3.1" ---------- */
I just tried to bring PC-DOS 3.1 up on my AT.  ...
I keep getting an error that there is not enough room on the system disk
to bring the system up.  This has to be a crock, I deleted until I had at
least a meg of space.  Does anybody have a fix so that I can update?
-- 
liz sommers
/* End of text from uiucuxc:net.micro.pc */

    i think what DOS is complaining about is the occupation of the special
directory slots reserved for ibmbio.com and ibmdos.com.  for example, if you:
	format a:/v		;volume label in root directory
	sys a:			;slot where ibmbio.com belongs
you'll get the same error message.  on the other hand,
	format a:/s
	sys a:
doesn't complain; i wonder if versions are being compared?  anyhow, you
could try using the CHMOD syscall to remove the readonly/hidden/system
attributes from ibmbio.com and ibmdos.com so you can delete them and
re-install from your 3.1 disk.
    on a related note, one of my colleagues wanted to "sample" 3.1, so he
installed "borrowed" copies of ibm???.com and command.com on his XT.  
thereafter, his old command.com and chkdsk.com (from DOS 2.11?) would abort
with a "wrong version of DOS" message.
	wayne ({decvax,ucbvax}!pur-ee!uiucdcs!uiucuxc!)hamilton

rde@ukc.UUCP (R.D.Eager) (07/08/85)

Surely  the  problem  has to be the usual one; the new DOS files take up
slightly more room than the old ones, so it isn't possible to  copy  the
new  files (specifically IBMBIO.COM which has to be contiguous) into the
space occupied by the old ones.

Solutions are to reformat the disk (great!)  or  find  out  which  files
occupy  the  space needed by the larger files (although I am not certain
this will work).

-- 
           Bob Eager

           rde@ukc.UUCP
           rde@ukc
           ...!mcvax!ukc!rde

           Phone: +44 227 66822 ext 7589