jhunt@omews3.intel.com (Jim Hunt) (02/23/90)
I am having problems formatting 720k media on my new 1.44M drive. I give the command: format b: /n:9 /t:80 The error message back says something like "Invalid media or Track 0 bad - disk unusable". This looks like the drive thinks it is formatting 1.44M media instead of 720k media. I have an AT clone machine, it is set up for a 360k drive A:, 1.44M drive B:, and I'm running DOS 3.30. Anyone have any ideas what my problem is? Thanks in advance, Jim +---------------------------------------------+-------------------------------+ |____________________ __ | Jim Hunt | |\______NCC_1701_____|) .____.--"--"---._____ | Intel Corporation, JF1-58 | | \\ -----._________.----/ | 5200 NE Elam Young Pkwy | | /========\\=====/ / "--" | Hillsboro, OR 97124 | | \==\_____________|-( | (503) 696-4781 | | | jhunt@mipon3.intel.com | +---------------------------------------------+-------------------------------+
jdudeck@polyslo.CalPoly.EDU (John R. Dudeck) (02/23/90)
In article <5541@omepd.UUCP> jhunt@omews3.intel.com (Jim Hunt) writes: >I am having problems formatting 720k media on my new 1.44M drive. >I give the command: > >format b: /n:9 /t:80 > >The error message back says something like "Invalid media or Track 0 >bad - disk unusable". This looks like the drive thinks it is formatting >1.44M media instead of 720k media. I have an AT clone machine, it is I believe that the 1.44 mb drives have to switch a few things internally when going between DD and HD media. The hole in the corner of the diskette is how it knows what media is inserted. However, there is a jumper (at least there is on my Toshiba drive) that determines whether the media detection is enabled or not. I would guess that in your case the drive is permanently set for HD, and is not properly detecting a DD diskette. -- John Dudeck "You want to read the code closely..." jdudeck@Polyslo.CalPoly.Edu -- C. Staley, in OS course, teaching ESL: 62013975 Tel: 805-545-9549 Tanenbaum's MINIX operating system.