Home » Personal collection » Acorn ADFS disks » Electron » PRES_E00.ADF » Help/FindBadSec
Help/FindBadSec
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Personal collection » Acorn ADFS disks » Electron » PRES_E00.ADF |
| Filename: | Help/FindBadSec |
| Read OK: | ✔ |
| File size: | 04E1 bytes |
| Load address: | 0000 |
| Exec address: | FFFFFFFF |
Duplicates
There are 5 duplicate copies of this file in the archive:
- AEW website » acornsoft » acornsoft_3_5_discs_Electron_Welcome_Disc_HA-WELC.adf » Help/FindBadSec
- AEW website » acp_pres » acp_pres_3_5_discs_Electron-Adfs-E00_A-E00.adf » Help/FindBadSec
- Personal collection » Acorn ADFS disks » Electron » PRES_E00.ADF » Help/FindBadSec
- Personal collection » Acorn ADFS disks » Electron » PRES_E00_backup.ADF » Help/FindBadSec
- Personal collection » Acorn ADFS disks » Greaseweazled » adfs_E00.adf » Help/FindBadSec
- Personal collection » Acorn ADFS disks » Greaseweazled » dfs_box04_disk01b_adfs_welcome_disk_interleaved.adf » Help/FindBadSec
File contents
** FINDBADSEC ** FINDBADSEC will search through a specified part of a disc to find any bad sectors (ie areas of the disc that cannot be read from or written to, and will cause 'Disc Error' messages when any attempt is made to access them ). You can then remove these from the Free Space Map so that they no longer appear to exist, using the HARDERROR utility program - see the help file for HARDERROR. You will be asked to specify the disc you wish to test and the first & last sectors between which the search is to be made. If a bad sector is encountered the sector number and the type of error will be displayed. Disc error numbers are listed in the User Guide. The program will continue looking for bad sectors, until either no more are found, or the screen is full, in which case you will be prompted as to whether or not you wish to continue. If you find more than a few bad sec- tors, you would be well advised to stop using the disc as soon as possible. If track 0 ( which contains the Free Space Map and Root Directory ) is cor- rupted, then the program will not run. However, in such a case, the disc would be too badly corrupted to recover and would need to be re-formatted.
00000000 20 20 20 20 20 20 20 20 20 20 20 2a 2a 20 46 49 | ** FI| 00000010 4e 44 42 41 44 53 45 43 20 2a 2a 0d 0d 20 20 46 |NDBADSEC **.. F| 00000020 49 4e 44 42 41 44 53 45 43 20 20 20 77 69 6c 6c |INDBADSEC will| 00000030 20 20 73 65 61 72 63 68 20 20 74 68 72 6f 75 67 | search throug| 00000040 68 20 20 61 0d 73 70 65 63 69 66 69 65 64 20 20 |h a.specified | 00000050 70 61 72 74 20 20 6f 66 20 61 20 64 69 73 63 20 |part of a disc | 00000060 74 6f 20 66 69 6e 64 20 20 61 6e 79 0d 62 61 64 |to find any.bad| 00000070 20 73 65 63 74 6f 72 73 20 20 28 69 65 20 61 72 | sectors (ie ar| 00000080 65 61 73 20 6f 66 20 74 68 65 20 64 69 73 63 20 |eas of the disc | 00000090 74 68 61 74 0d 63 61 6e 6e 6f 74 20 62 65 20 20 |that.cannot be | 000000a0 72 65 61 64 20 66 72 6f 6d 20 6f 72 20 77 72 69 |read from or wri| 000000b0 74 74 65 6e 20 74 6f 2c 20 61 6e 64 0d 77 69 6c |tten to, and.wil| 000000c0 6c 20 63 61 75 73 65 20 20 27 44 69 73 63 20 45 |l cause 'Disc E| 000000d0 72 72 6f 72 27 20 6d 65 73 73 61 67 65 73 20 20 |rror' messages | 000000e0 77 68 65 6e 0d 61 6e 79 20 61 74 74 65 6d 70 74 |when.any attempt| 000000f0 20 69 73 20 6d 61 64 65 20 74 6f 20 61 63 63 65 | is made to acce| 00000100 73 73 20 74 68 65 6d 20 29 2e 0d 0d 20 20 59 6f |ss them )... Yo| 00000110 75 20 20 63 61 6e 20 74 68 65 6e 20 20 72 65 6d |u can then rem| 00000120 6f 76 65 20 20 74 68 65 73 65 20 66 72 6f 6d 20 |ove these from | 00000130 74 68 65 0d 46 72 65 65 20 53 70 61 63 65 20 20 |the.Free Space | 00000140 4d 61 70 20 73 6f 20 74 68 61 74 20 20 74 68 65 |Map so that the| 00000150 79 20 6e 6f 20 6c 6f 6e 67 65 72 0d 61 70 70 65 |y no longer.appe| 00000160 61 72 20 20 74 6f 20 20 65 78 69 73 74 2c 20 75 |ar to exist, u| 00000170 73 69 6e 67 20 20 74 68 65 20 48 41 52 44 45 52 |sing the HARDER| 00000180 52 4f 52 0d 75 74 69 6c 69 74 79 20 70 72 6f 67 |ROR.utility prog| 00000190 72 61 6d 20 2d 20 73 65 65 20 74 68 65 20 68 65 |ram - see the he| 000001a0 6c 70 20 66 69 6c 65 20 66 6f 72 0d 48 41 52 44 |lp file for.HARD| 000001b0 45 52 52 4f 52 2e 0d 0d 20 20 59 6f 75 20 77 69 |ERROR... You wi| 000001c0 6c 6c 20 62 65 20 61 73 6b 65 64 20 74 6f 20 73 |ll be asked to s| 000001d0 70 65 63 69 66 79 20 74 68 65 20 64 69 73 63 0d |pecify the disc.| 000001e0 79 6f 75 20 20 77 69 73 68 20 20 74 6f 20 74 65 |you wish to te| 000001f0 73 74 20 61 6e 64 20 74 68 65 20 66 69 72 73 74 |st and the first| 00000200 20 26 20 6c 61 73 74 0d 73 65 63 74 6f 72 73 20 | & last.sectors | 00000210 62 65 74 77 65 65 6e 20 20 77 68 69 63 68 20 74 |between which t| 00000220 68 65 20 73 65 61 72 63 68 20 69 73 20 74 6f 0d |he search is to.| 00000230 62 65 20 6d 61 64 65 2e 20 49 66 20 61 20 62 61 |be made. If a ba| 00000240 64 20 73 65 63 74 6f 72 20 69 73 20 65 6e 63 6f |d sector is enco| 00000250 75 6e 74 65 72 65 64 0d 74 68 65 20 73 65 63 74 |untered.the sect| 00000260 6f 72 20 6e 75 6d 62 65 72 20 61 6e 64 20 74 68 |or number and th| 00000270 65 20 74 79 70 65 20 6f 66 20 65 72 72 6f 72 0d |e type of error.| 00000280 77 69 6c 6c 20 62 65 20 64 69 73 70 6c 61 79 65 |will be displaye| 00000290 64 2e 20 20 44 69 73 63 20 65 72 72 6f 72 20 20 |d. Disc error | 000002a0 6e 75 6d 62 65 72 73 0d 61 72 65 20 6c 69 73 74 |numbers.are list| 000002b0 65 64 20 69 6e 20 74 68 65 20 55 73 65 72 20 47 |ed in the User G| 000002c0 75 69 64 65 2e 0d 0d 20 20 54 68 65 20 70 72 6f |uide... The pro| 000002d0 67 72 61 6d 20 77 69 6c 6c 20 63 6f 6e 74 69 6e |gram will contin| 000002e0 75 65 20 6c 6f 6f 6b 69 6e 67 20 66 6f 72 0d 62 |ue looking for.b| 000002f0 61 64 20 73 65 63 74 6f 72 73 2c 20 20 75 6e 74 |ad sectors, unt| 00000300 69 6c 20 65 69 74 68 65 72 20 6e 6f 20 20 6d 6f |il either no mo| 00000310 72 65 20 61 72 65 0d 66 6f 75 6e 64 2c 20 6f 72 |re are.found, or| 00000320 20 74 68 65 20 20 73 63 72 65 65 6e 20 69 73 20 | the screen is | 00000330 66 75 6c 6c 2c 20 69 6e 20 77 68 69 63 68 0d 63 |full, in which.c| 00000340 61 73 65 20 79 6f 75 20 77 69 6c 6c 20 62 65 20 |ase you will be | 00000350 70 72 6f 6d 70 74 65 64 20 61 73 20 74 6f 20 77 |prompted as to w| 00000360 68 65 74 68 65 72 0d 6f 72 20 6e 6f 74 20 79 6f |hether.or not yo| 00000370 75 20 77 69 73 68 20 74 6f 20 63 6f 6e 74 69 6e |u wish to contin| 00000380 75 65 2e 0d 0d 20 20 49 66 20 20 79 6f 75 20 66 |ue... If you f| 00000390 69 6e 64 20 6d 6f 72 65 20 74 68 61 6e 20 61 20 |ind more than a | 000003a0 66 65 77 20 62 61 64 20 73 65 63 2d 0d 74 6f 72 |few bad sec-.tor| 000003b0 73 2c 20 79 6f 75 20 77 6f 75 6c 64 20 62 65 20 |s, you would be | 000003c0 77 65 6c 6c 20 61 64 76 69 73 65 64 20 74 6f 20 |well advised to | 000003d0 73 74 6f 70 0d 75 73 69 6e 67 20 74 68 65 20 64 |stop.using the d| 000003e0 69 73 63 20 61 73 20 73 6f 6f 6e 20 61 73 20 70 |isc as soon as p| 000003f0 6f 73 73 69 62 6c 65 2e 0d 0d 20 20 49 66 20 74 |ossible... If t| 00000400 72 61 63 6b 20 30 20 28 20 77 68 69 63 68 20 20 |rack 0 ( which | 00000410 63 6f 6e 74 61 69 6e 73 20 74 68 65 20 46 72 65 |contains the Fre| 00000420 65 0d 53 70 61 63 65 20 4d 61 70 20 61 6e 64 20 |e.Space Map and | 00000430 20 52 6f 6f 74 20 44 69 72 65 63 74 6f 72 79 20 | Root Directory | 00000440 29 20 69 73 20 63 6f 72 2d 0d 72 75 70 74 65 64 |) is cor-.rupted| 00000450 2c 20 74 68 65 6e 20 74 68 65 20 70 72 6f 67 72 |, then the progr| 00000460 61 6d 20 77 69 6c 6c 20 6e 6f 74 20 20 72 75 6e |am will not run| 00000470 2e 0d 48 6f 77 65 76 65 72 2c 20 69 6e 20 73 75 |..However, in su| 00000480 63 68 20 61 20 63 61 73 65 2c 20 74 68 65 20 64 |ch a case, the d| 00000490 69 73 63 20 77 6f 75 6c 64 0d 62 65 20 20 74 6f |isc would.be to| 000004a0 6f 20 20 62 61 64 6c 79 20 63 6f 72 72 75 70 74 |o badly corrupt| 000004b0 65 64 20 74 6f 20 72 65 63 6f 76 65 72 20 61 6e |ed to recover an| 000004c0 64 0d 77 6f 75 6c 64 20 6e 65 65 64 20 74 6f 20 |d.would need to | 000004d0 62 65 20 72 65 2d 66 6f 72 6d 61 74 74 65 64 2e |be re-formatted.| 000004e0 0d |.| 000004e1
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