I would BLINDLY trust:
dd if=other-MBR.iso of=/dev/sda bs=446 count=1
I would NOT trust FIXBOOT and/or just about anything Micro$haft to
manipulate my partitions... ;-)
THANKS!!!
ET
Stephen writes:
> yes, however if you have a windows XP disk you just boot it, hit the
> option to go to the repair console type FIXBOOT and then fdisk /mbr
> and it rebuilds the MBR as well.
>
> On Fri, Dec 18, 2009 at 8:16 AM, kitepilot@kitepilot.com
> <kitepilot@kitepilot.com> wrote:
>>>> get the 446-byte boot record from somewhere and dd it to /dev/sda
>> I LIKE THIS IDEA!!! :)
>> Are you telling me that I can just grab those 446 bytes from *ANY* WinXP
>> box, copy them to my MBR and the laptop will boot? 8)
>> That's a pretty "un-risky" proposition... :)
>> Thanks!
>> ET
>>
>>
>>
>>
>> Matt Graham writes:
>>
>>> From: "kitepilot@kitepilot.com" <kitepilot@kitepilot.com>
>>>> I went and installed Kubuntu 9.10 (which uses GRUB 2) on the flash
>>>> drive and forgot to tell the thing to leave /dev/sda alone...
>>>>
>>>> Now the machine only boots from the flash drive.
>>>> My plan is to backup the 512 bytes of the MBR and (MOST IMPORTANT!)
>>>> the partition table and use "something" (insert cloud of ignorance
>>>> here) to rebuild the windoze boot record.
>>>
>>> Run FIXMBR or FDISK /MBR from a 'Doze boot CD. Failing that, get the
>>> 446-byte boot record from somewhere and dd it to /dev/sda . There's
>>> actually no need to do anything with the partition table here.
>>>
>>>> Can I trust whichever tool I use (and hope you will tell me) to
>>>> leave the partition contents alone or [had] I better dd the whole
>>>> 250GB of /dev/sda somewhere else in case *IT* happens?
>>>
>>> There will be no need to back up things if you use the tools in the
>>> previous paragraph.
>>>
>>> --
>>> Matt G / Dances With Crows
>>> The Crow202 Blog: http://crow202.org/wordpress/
>>> There is no Darkness in Eternity/But only Light too dim for us to see
>>>
>>>
>>>
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>
>
>
> --
> A mouse trap, placed on top of your alarm clock, will prevent you from
> rolling over and going back to sleep after you hit the snooze button.
>
> Stephen
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