As shipped, the MISE's hard and floppy drives are organized as described here. Some users may wish to reconfigure this arrangement, to have more or fewer hard drives, hard drives of different sizes, or a different number of floppy drives.
Before attempting any of these steps, make a backup of your CF card, or use a CF card reader/writer to dump an image to your PC. That way if something goes wrong you can recover your system.
When creating a hard drive, its size will be: cylinders * heads * 8KB.
In order to re-arrange your hard drives you will first need to remove one or more from the system. If you wish to remove all hard drives and start from scratch, skip this section.
Let's assume you want to remove drive :5. Start by disabling the drive:
Disabling the drive does not remove its assignment in LDOS. If you ENABLE the drive at this point, nothing will have been changed. To permanently remove the drive (not necessary if it's a floppy drive):
This will free the drive's disk space allocation for new drives to be created. The drive, if re-enabled, will become the lowest-numbered unused floppy.
Proceed to remove drives :4, :3, etc. in the same manner until you reach the desired arrangement. It's recommended that you remove the highest-numbered drive first and proceed downward, to leave the maximum amount of contiguous free space on the disk without any "holes". Do not remove drive :0, which would render the hard disk system unusable. Skip to the next section if you really want to start from scratch.
Next, if desired, create new hard drives to replace the ones you've removed, starting with the lowest-numbered:
This will generate several prompts. The "drive address <1-2>" is 1 for the Primary and 2 for the Secondary IDE device. "F/R" means fixed vs. removable. Use Fixed.
The partition's number of heads controls the number of heads assigned to the logical drive. It's recommended that you always use the maximum of 8 heads.
The number of cylinders controls how many will be assigned to the drive. The default value shows the maximum number that can be used. It is strongly advised that you use 203 or fewer cylinders because LDOS doubles the size of its file allocation units for any larger number. In addition to wasting disk space, this can cause problems with software including LDOS itself.
If the geometry of the new drive doesn't match the drive that previously occupied its disk space, or if the previous drive was corrupted, you will be advised that the new drive appears to be unformatted. Important: If you receive this message, you must immediately format the new drive, because certain LDOS commands will corrupt its Drive Code Table (DCT) entry.
If you don't see the message, it means that your new drive appears to match the physical geometry of an old drive. If this is not what you intended, it's advisable to re-format the drive.
See here for information on formatting hard drives.
Continue creating hard drives until you run out of drive numbers or reach the maximum of 1024 cylinders per physical IDE disk. Finish by executing SYSTEM (SYSGEN) to save your changes to disk.
If for some reason you really want to remove and reconfigure all the hard drives, read on. This is not something most MISE users will ever need to do. There are two main approaches.
The basic system created by this procedure does not contain all the files that came with MISE. You can download additional files from this website, and copy them to MISE using FTP. Once you have all the files, run DO ACCESS to set the correct passwords and permissions on all the files. This script will also help you detect files that are missing.
This assumes you have the default logical drive number setup (hard drives :0 through :5, floppies :6 and :7).
Or to simplify matters, just make a mirror-image backup to the second card:
The secondary CF card need not even be formatted. See the backup utility page for more details.
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