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- From: macanespie@waves.pas.ti.com (Alan MacAnespie)
- Subject: Re: HD validation
- Message-ID: <1993Jan25.174452.1@waves.pas.ti.com>
- Lines: 62
- Sender: usenet@csc.ti.com
- Nntp-Posting-Host: waves
- Reply-To: macanespie@waves.pas.ti.com
- Organization: Texas Instruments, PAS
- References: <43949@sdcc12.ucsd.edu>
- Date: Mon, 25 Jan 1993 22:44:52 GMT
-
- In article <43949@sdcc12.ucsd.edu>, cg18fgg@icogsci1.ucsd.edu (Greg) writes:
- > One of my harddrives had an error ("block 150341 used twice") and will no
- > longer validate. How can I correct this?
-
- First: Don't Panic! Most of your data should be safe as things are.
-
- Second: "Block XXX used twice means that there are two files on the disk
- that think that they own the same block on the disk. This is not right.
-
- Third: This also means that at least one file contains the data of the
- other file. (i.e. it is corrupt).
-
- Fourth: AmigaDOS sees that problem, and will now refuse to provide the
- harddrive for write access. (to prevent you from screwing it up any
- further) This is the reason for the First statement.
-
- Solutions
- ---------
- You have several choices:
-
- Do not, I repeat, DO _NOT_ use DiskDoctor on anything anymore. It has been
- removed from AmigaDOS distributions for malpractice. It worked just fine
- on ADOS 1.1 and 1.2, but it will *toast* just about any other disk.
-
- 1. The best/cleanest solution would be to use the unequaled utility
- DiskSalv, written by your (and my) Amiga's friend, Dave Haynie. This
- utility will fetch all the files that are located on just about any
- damaged/demented disk and copy them to another location. The main problem
- with this is that most people don't have large empty disks hanging around
- that are empty enough to move another disk's data onto it. (or dozens of
- floppy disks) Then reformat the disk, and copy the files back.
-
- Now, the next future version of DiskSalv (2.0?) is supposed to have some
- fix-in-place capability, but I don't believe that Dave Haynie has
- completed/released it yet, so this doesn't help you. :-(
-
- 2. Use Quarterback Tools. I don't know of any PD/Shareware programs that
- can fix this kind of problem, but QBTools works just great. This is a
- commercial program that provides fix-in-place disk recovery and will
- usually detect this kind of problem right away and is pretty capable of
- fixing it. (It also does disk defragmentation and other little goodies,
- but that isn't as important to you right now.)
-
- 3. If the disk mounts, but does not validate, you should still have read
- access to it. Just COPY all the files that mean something to you off the
- disk, reformat it, and copy files back on.
-
- 4. Use your latest backup disks and recover the drive from them. (You do
- have backups don't you?)
-
- > Thanks much in advance,
- > Greg
- > gcallahan@ucsd.edu
-
- No problemo, mon.
-
- --
- Alan MacAnespie, || * Standard Disclaimers Apply Upstairs.*
- Texas Instruments, PAS || Is a person who writes many different
- macanespie@waves.pas.ti.com || applications a Renaissance Computist?
-
- How many bits would a BlitBlit blit if a BlitBlit could blit bits?
-