Displaying 2 results from an estimated 2 matches for "ndhi3".
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2015 Aug 06
2
CentOS 5 grub boot problem
...ader.
http://ur1.ca/ndhf4
At offset 0x1B8 you'll notice 3 bytes of difference, but this is the
disk signature. But what's interesting, this is not grub stage 1. This
is a simple parted boot strap code that looks for the active bit in
the MBR (the boot flag). When I do this:
http://ur1.ca/ndhi3
There's the grub stage1. It's embedded in /boot (vda1) and (vdb1).
When dd the 1st sector of vda1 and vdb1 to files, and diff the files,
they're identical. So they're both pointing to the same LBA on each
disk for stage 2.
It really shouldn't matter though, whether this three...
2015 Aug 06
3
CentOS 5 grub boot problem
On 08/05/2015 10:23 AM, Chris Murphy wrote:
> Nothing about hd0 or hd1 gets baked into the bootloader code. It's an
> absolute reference to a physical drive at the moment in time the
> command is made.
Is that true? If I have a system with two disks, where device.map
labels one as hd0 and the other as hd1, and I swap those numbers, the
resulting boot sector will differ by one bit.