![]() Before I could still access the diskette's contents after mounting it. The following command 'sudo mkfs.fat -a /dev/fd0 1440' now seems to work despite the error message that the "partition" is not found. left open.Īn odd thing after shutting down for the day and coming back to this. The write protection tab on the diskette was not engaged i.e. Happy New Year ! and thanks! to all who replied. If memory serves me correctly, there will be a hole at the bottom LEFT (when viewing the back of the disk), for disks with 1.44 MB capacity, and if no hole exists on bottom LEFT, then the floppy is 720 KB. If you hold the floppy so you are looking at the back, then there will be a hole on the bottom LEFT that is used to tell the drive what the floppy disk's capacity is. Please note that the 3.5 inch floppies came in various capacities (the two most common were 720 KB and 1.44 MB. and you will be able to write to the floppy. If that's the case, then just put a small piece of opaque tape over the "hole" (where the slider switch was). Sometimes the little "slider switch" on 3.5" floppies were removed (to make the floppy permanently read-only). If the movable part of the tab is down, the disk is write-enabled. If the movable part of the sliding tab is up, so that there's a hole in that corner of the disk, the disk is write-protected. If you hold the disk so that the edge that goes into the drive is at the bottom, this should be in the top left corner. On one corner, there should be a sliding tab. To tell if a floppy disk is write-protected (locked), look at the underside of the disk (the part that's on the bottom when you put the disk in the drive). I assume you know this, but to make sure. I assume you are talking about the 3.5" floppies. I think DOS 3.Are you talking about 5.25" and 8" floppy discs or 3.5" floppies? However, the created blank disk image is not recognized unless I format it with /1 /4 /8 parameter. I tested a self-extracting file that recreates a a 160kb IBM DOS 1.10 floppy disk. It reads the file correcltly but it finds an error on the floppy image file.ī.Select the drive letter of the floppy drive.chose to convert from image file to disk.Here is the hard disk image, it is the same as I uploaded before, but has the Teledisk directory The image file to transfer is Lemmings.td0. I copied Teledisk in the C:\teledisk directory. But I tried this to test if it works, unfortunately I don't know if this bug related In also configure The floppy drive as 720kb in both 86box configuration and the setup bios.Ĩ6box read the TD0 image file as a floppy disk correctly. I also get an error when start to write the 720kb blank floppy image. Today I tested Teledisk to convert a TD0 file to the emulated 720kb floppy disks. I also have another VM with a 386 and DOS 6.0 and has the same issue. (Can format a 5.25 360kb floppy disk on a 5.25 1.2MB drive, altought I did not test, if it happens on the 5.25 disk format).ĭesktop (please complete the following information): DOS 3.2 added support for 720kb floppy disks and added disk format autodetection. It should detect the disk format correctly. Type FORMAT A: (If the disk drive is A).On DOS 4.0 and later is possible to force a 720kb format using the FORMAT command with the /F:720 parameter. ![]() It formats correctly a 720kb disk on 720kb drive. This bug only occurs when 1.44MB floppy is used.This affects all DOS versions from 3.30 (this was the first version with 1.44MB floppy disk support) to MS-DOS 6.22. The DOS FORMAT utility, throws an error when formatting a 3.5 720KB floppy on a 1.44MB disk drive.
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