Wolfgang Weisselberg wrote:
>
> Hi!
Hi there.
> Trying to kill the keyboard, [EMAIL PROTECTED] produced:
> > Apr 2 22:46:36 meteu kernel: [019] ftape-read.c
>(ftape_decode_header_segment) - wrong signature in header segment.
>
> in FTAPE/ftape/lowlevel/ftape-read.c (Version 3.04 i.e. OLD(!),
> but still may be the same code), the function
>
> ftape_decode_header_segment
>
> tests first if it's a Ditto 2GB (encrypted the bad sector map)
> by checking the Magic Number (which would be 0x82288228).
It shouldn't be a Ditto 2GB - It's a Colorado DJ-20 (QIC-80 250MG) Tape
Drive
> If it's not a Ditto 2GB Magic Number, then it should be
> the normal magic number for a floppy tape (0xaa55aa55) (see
> FTAPE/include/linux/ftape-header-segment.h).
Please forgive a stupid question... I see in the header that it should
be 0xaa55aa55. How do I check to see if that is the Magic Number?
Follow up stupid question.. I understand what a bad sector is... I'm
assuming the bad sector map is just a listing of bad sectors but where
is the bad sector map, and how do I view it?
> Your Magic Number is not a "Ditto 2GB" and not a normal Magic
> Number, in other words, your header (on this tape) is so badly
> damaged that it cannot be interpreted with any security ---
> it may well be line noise for all we know, so we die with an
> error message.
This is not unique to any specific tape. This happens with all tapes.
I even have a blank, unformatted tape right out of the shrink wrap that
I tried it on.
> Maybe you should reformat the tape[1] ... oh you said, you had
> troubles doing just this? Try getting the newest ftformat etc.
> you can get and recompile it. That may or may not help.
> (Or use some DOS/Win tools)
I am using the latest ftformat, no help. I will try using the Windows
NT format on the tape, then I'll come back and try doing the format
again. I really do not think its a problem with the tape though, because
I can not read tapes that had previously been written with ftape when it
was working (about a year ago prior to a million and a half upgrades).
> -Wolfgang
Thanks for the help,
Dan
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