errors.txt
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- Table of Errors:
- Most of these will prevent the hard disk from working correctly under DOS, so
- it's not likely that you ever get these errors.
- Invalid root sector signature
- The last two bytes of the root sector should be 55 AA (hex).
- This is a serious error and usually prevents the hard disk from being
- accessible under DOS. You can use 'fdisk /mbr' after booting from a
- floppy disk to write a correct root sector.
- Calculation error
- Oops, this is a bug in FIPS. The changed root sector is defective. Please
- send a bug report to schaefer@rbg.informatik.th-darmstadt.de
- Overlapping partitions
- The partition table contains overlapping partitions. This is a serious
- problem and should not happen.
- Invalid jump instruction in boot sector
- The first three bytes of the boot sector must be a 3-byte jump (E9 xx xx)
- or a 2-byte jump (EB xx 90). Perhaps the partition is not yet formatted.
- FIPS can only split DOS-formatted partitions.
- Invalid boot sector
- The last two bytes of the boot sector must be 55 AA (hex)
- Can't handle number of bytes per sector
- The number of bytes per sector must be 512
- Number of sectors per cluster must be a power of 2
- Only 1, 2, 4, 8, 16, 32, 64 or 128 are allowed
- Partition must have 2 FATs
- Every DOS partition has 2 copies of the FAT
- Number of root directory entries must not be zero
- Sounds reasonable, doesn't it?
- Number of hidden sectors incorrect
- The number of hidden sectors in the boot sector must match the number
- of the start sector in the partition table
- 12-bit FAT not supported
- FIPS can't split partitions with a 12-bit FAT
- Number of sectors (short) must be zero
- For partitions with more than 65536 sectors (BIGDOS) the number of sectors
- (short) must be zero
- Number of sectors (short) does not match partition info
- The number of sectors in the partition table must match the number of
- sectors in the boot sector
- Number of sectors (long) does not match partition info
- The number of sectors in the partition table must match the number of
- sectors in the boot sector
- Invalid drive number
- Only the numbers 128 - 255 are valid drive numbers
- Error reading FAT 1
- Read error - bad sector
- Error reading FAT 2
- Read error - bad sector
- FAT copies differ
- The two copies of the FAT differ - use 'chkdsk /f' to correct this
- New partition not empty
- The New Partition is not empty. Apparently this is a bug in FIPS, since
- the empty space of the partition has been determined before. Please
- send a bug report to schaefer@rbg.informatik.th-darmstadt.de
- Too many drives found
- FIPS can handle up to 9 drives - that should be enough for most PCs :-)
- No compatible hard disk found
- Hey, where is your drive? Perhaps your hard disk is not int 13h compatible.
- No valid partition found
- All partitions in the partition table are empty
- No free partition
- All four partitions are in use
- Error reading drive geometry
- Interrupt 13h 08h returned an error code
- Drive initialization failure
- Interrupt 13h 00h returned an error code
- Error reading root sector
- Read error - bad sector, wrong drive number or incompatible harddrive
- Can't split extended partitions
- FIPS can not yet split extended DOS partitions
- Unknown file system
- Only DOS partitions can be split (system indicator byte must be 4 or 6)
- Error reading boot sector
- Read error - bad sector
- Partition too small - can't split
- If the partition has only slightly more than 4085 clusters, it can't be
- split any further without rewriting the FAT to 12 bit.
- Last cylinder is not free
- Since the new partition is created at the end of the old one and
- contains at least one cylinder, the partition can not be split if
- not at least the very last cylinder is completely free.
- Probably there is a hidden file like 'image.idx' or 'mirorsav.fil'
- in the last cylinder - see the doc.
- Error writing root sector
- Write error - perhaps the disk is write protected?
- Error writing boot sector
- Write error :-( - this will hopefully never happen ...
- Too many save files on disk
- There can only be ten save files on one floppy disk (rootboot.000 to
- rootboot.009). Delete some or use another floppy disk.
- Can't open file
- FIPS tried to write the file rootboot.00? to drive A: but an error occured
- Try using another floppy disk
- Error writing file
- FIPS tried to write the file rootboot.00? to drive A: but an error occured
- Try using another floppy disk
- Error closing file
- FIPS tried to write the file rootboot.00? to drive A: but an error occured
- Try using another floppy disk
- Warnings:
- These will not cause FIPS to exit, since they are not really errors. If you
- have the possibility to correct the problem, do it; if not, this will not
- affect DOS, so you should be safe.
- More than one active partition
- More than one partition is marked 'active' in the partition table.
- There are some boot programs that do not complain about more than one
- active partition - they will just use the first one. If you have such
- a program in your root sector and the PC boots normally, you may ignore
- this message. Otherwise use fdisk to correct the error.
- Invalid active flag
- The 'active' flag of a partition should be either 80h or 0.
- By modifying the active flag and the boot program it is theoretically
- possible to boot from the second harddrive. If you happen to have such
- a configuration, ignore this message. Otherwise you can delete the flag
- now.
- Partition table inconsistency
- FIPS has detected that the 'physical' start or end sector (head/cylinder/
- sector) do not match with the 'logical' start/end sector. This is not
- an error since the 'physical' values are redundant and not used anyway.
- There are many configurations where the values differ. This message is
- meant only to inform you that FIPS has adapted the 'physical' values
- according to the current drive geometry. So don't be alarmed by an unex-
- pected cylinder range.
- Invalid partition entry
- The partition entry contains data, but the system indicator is 0 (empty).
- Attention: FIPS will possibly overwrite this entry. Make sure this is no
- valid Partition (temporarily disabled etc.)
- No active partition
- No partition in the partition table is marked active. Normally you will
- not be able to boot from this disk. Use fdisk to correct that.
- Partition does not end on cylinder boundary
- All partitions should end on a cylinder boundary
- Partition does not begin on cylinder boundary
- Normally, all partitions except the first one should begin on head 0,
- sector 1 of a cylinder. This is not required by DOS, however.
- Free space between partitions
- There is free space on the harddisk that is not covered by a partition
- Number of reserved sectors should be 1
- The boot sector uses only 1 sector, so the number of reserved sector
- is usually 1. If you can access your drive, do not attempt to change this.
- Number of root directory entries must be multiple of 16
- One sector of the root directory contains 16 entries. An invalid number
- of root directory entries is accepted by DOS but causes problems.
- Wrong media descriptor byte in boot sector
- The media descriptor byte should be F8h for a harddisk, but other values
- like FCh are accepted by DOS (perhaps used for removable media ?).
- FAT too large
- Since the number of sectors per FAT is a 2 byte number, it is theoretically
- possible to have up to 65535 sectors per FAT. A number of FAT sectors
- greater than 256 is accepted by DOS, but not useful, since the largest
- possible FAT has 2 bytes * 64K entries = 128K = 256 * 512 bytes. If you can
- access the drive, do not attempt to change this.
- FAT too small
- If the number of clusters in the partition is larger than there are entries
- in the FAT, DOS uses only part of the partition. Something has gone *very*
- wrong with this partition, but all is not lost - reduce the partition to a
- size that can be properly managed.
- Sectors per track incorrect
- The number of sectors per track in the boot sector does not match the actual
- drive geometry reported by the BIOS
- Number of drive heads incorrect
- The number of drive heads in the boot sector does not match the actual
- drive geometry reported by the BIOS
- Wrong system indicator byte
- For BIGDOS Partitions the System Indicator Byte should be 6; for DOS16
- Partitions it should be 4
- Wrong signature
- Partitions with 32-bit sector numbers (since DOS 4.0+) have an 'extended
- Bios Parameter Block' in the boot sector, its signature byte is 29h. This
- is however totally ignored by DOS.
- Drive number in boot sector does not match actual drive number
- The drive number in the boot sector does not match the drive number by which
- the drive is accessed
- Wrong media descriptor byte in FAT
- The first byte of each FAT is the Media Descriptor - it should be F8h
- for a hard disk, but other values like FCh are accepted by DOS (perhaps
- used for removable media ?).
- Wrong FAT entries 1 & 2
- A 16-bit FAT should start with F8 FF FF FF
- Can't open debug file
- The debug file is created in the current directory - make sure it is
- writable