Hey, was I glad to see some assembler. Gave me flashbacks to good 'ol
days.
Another way to blow the MBR is again to use the write command in debug
I haven't done this in a long time, but I think it goes somewhat like
this
A:>debug
-W 100 80 0 17
The above command writes all data at address 100 to drive 80 (C:) from
0 sector to 17 sectors. Use can use the fill command to fill 100 with
00, but if you start debug it will contain some garbage which will
write over the MBR.
NOTE of WARNING : Please treat the above with care as it has the
potential to create havoc to a working system.
-- Aravind
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of
> David Beveridge
> Sent: Tuesday, 8 February 2000 08:52
> To: [EMAIL PROTECTED]
> Cc: Howard Lowndes
> Subject: Re: [SLUG] I hate loosing to Evilware
>
>
> Try this:- Be careful with it!
> (ie Make sure you are doing the right drive, best not to
> use in a two drive
> system)
>
> How to blow away the Master Boot Record and any partitions
> of a Hard Disk.
>
> Boot from an MS-DOS diskette that has debug on it.
>
> A>debug
> -a
> SSSS:0100 mov ax,301
> SSSS:0103 mov bx,3800
> SSSS:0106 mov es,bx
> SSSS:0108 mov bx,0
> SSSS:010B mov cx,1
> SSSS:010E mov dx,80
> SSSS:0111 int 13
> SSSS:0113 int 3
> SSSS:0114
> -g=100
>
> registers appear with result code in AX should be 0001.
>
> -q
>
> done.
>
> More about the mov dx,80 line
> 80 = C:
> 81 = D: etc
>
> ES:BX points to a block in memory that the BIOS routine on
> Interrupt 13H
> copies over sector 0 of the hard disk trashing the MBR and
> partition table.
>
>
> regards,
> Dave
> ----- Original Message -----
> From: "Howard Lowndes" <[EMAIL PROTECTED]>
> To: "Mail List - SLUG" <[EMAIL PROTECTED]>
> Sent: Monday, February 07, 2000 8:23 PM
> Subject: [SLUG] I hate loosing to Evilware
>
>
> > I am trying to set up an ext2 file system on a Quantum
> LPS270 disk, but no
> > matter what I do it refuses to co-operate.
> >
> > If I dd /dev/zero to it then it segfaults or oops'. If I set up a
> > partition table and try to mke2fs then it hangs. If I do
> a mke2fs -c then
> > it oops'.
> >
> > I guess it looks like being a bin job, which will be hard
> to take as it
> > had Evilware running on it before I started.
> >
> > Has anyone got any suggestions on what else I might try
> on this piece of
> > iron before it gets used for target practice.
> >
> > Howard.
> > ______________________________________________________
> > LANNet Computing Associates <http://www.lannet.com.au>
> >
> > --
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