Re: fdisk: What do plus signs after "Blocks" mean?

From: kernel
Date: Thu Jul 14 2005 - 08:53:49 EST


I always thought;

First 446 bytes are boot code and all
Next 64 bytes are for 4 partition records, 16 bytes each
Last 2 bytes are signature

?

-fd


On Wed, 2005-07-13 at 06:24, Jan Engelhardt wrote:
> > Guys, thanks a lot for the explanations!
> >
> > Actually, it seems like one can backup information on ALL partitions
> >by using the command "sfdisk -dx /dev/hdX". Supposedly, it reads not
> >only primary but also extended partitions. "sfdisk -x /dev/hdX" should
> >be then able to write whatever is known back to the disk.
>
> MBR size is 448 bytes, the rest is "the partition table", with space for four
> entries. If one wants more, then s/he creates a [primary] partition, tagging
> it "extended", and the "extended partiton table" is within that primary
> partition. So yes, by dd'ing /dev/hdX, you get everything. Including "lost
> sectors" if you dd it back to a bigger HD.
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