Re: Hard Disk Partition Recovery
On Sun, Jan 26, 2003 at 09:59:07PM -0500, Barry Pollock wrote:
> Keep in mind that dos 6.22 is only a 16 bit system and linux is 32 bit so
> if a 32 bit system writes to the partition table a 16 bit system may not
> be able to access the boot secter. keep in mind that dos can only read 2
> partitions from the primary and linux can read 4
Ehmm. You can do 32 bit math with a 16 bit processor, if required. Just
like you can do 64 bit math on a 32bit processor.
main (){long long t; t=111111111; t=t*t; printf ("%lld\n",t); }
Now I will agree that creating partition tables with Linux may make
them inaccessible to Windows. But this seems to be a simple consistency
check in Windows that somehow seems to trigger. Not a fundamental 16/32
bit issue.
Also it is not true that Windows can only use 2 out of 4 primary partitions.
It used to be the case that windows couldn't use more than ONE primary
partition. Just because microsoft decides "why for god's sake would
you need more than one partition"?
By the time they realized that this was wrong, they implemented ONLY
extended partitions.
Roger.
>
>
> On Mon, 27 Jan 2003, Massimiliano Ferrero wrote:
>
> > > I can't figure out that how I can see everything fine under Linux but not
> > > under DOS.....how do I get things working correctly?? Any ideas would be
> > > appreciated.
> >
> > Had a similar problem some times ago: after removing a boot loader
> > (system commander lite) I found my C: drive was not accessible anymore
> > from DOS or Windows.
> >
> > It was accessible using linux by booting from rescue disk or knoppix,
> > but it was not booting from HD, whichever boot loader I used (lilo,
> > grub, DOS, ...).
> >
> > After several hours I discovered that the boot sector of the inaccesible
> > partition was damaged: linux seems not to care about this, seems like he
> > just read the partition table before mounting the partition, but DOS or
> > Windows refused to mount it.
> >
> > I solved by copying everything on a second HD and then regenerating the
> > boot sector (FDISK /MBR).
> >
> > Maybe your problem is similar.
> >
> > Regards
> > Massimiliano
> >
> >
> > --
> >
> > Massimiliano Ferrero
> > Midhgard s.r.l.
> > C/so Re Umberto 23
> > 10128 - Torino
> > tel. +39-0112301400 - fax +39-0112301422
> > e-mail: m.ferrero@midhgard.it
> > sito web: http://www.midhgard.it
> >
> >
> > --
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> >
> >
>
>
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