Dual Boot 8.2 and Windows 7

doug at safeport.com doug at safeport.com
Fri Jun 24 14:36:59 UTC 2011

On Fri, 24 Jun 2011, Eduardo Morras wrote:

> At 09:08 24/06/2011, you wrote:
>> On 24 Jun 2011, at 06:24, doug at safeport.com wrote:
>> > I installed 8.2 from the DVD ISO. This install overwrote the MBR even 
>> though I selected not to write a boot record. Using the repair disk and/or 
>> bootrec does not work.
>> >
>> > The answer is found in 
>> http://www.sevenforums.com/tutorials/105541-startup-repair-run-3-separate-times.html.
>> >
>> > Basically you use diskpart to make sure that only the windows partition 
>> is marked active and then run the Startup Repair process 3 times. This is 
>> the only option that worked for me.
>> I can swear you chose to install a blank (empty) mbr as opposed to leaving 
>> the current one untouched.
> No, i had the same problem on my laptop. It's a known issue in sysinstall 
> since 6.x version that on some systems, no matter what you select, it always 
> erase the mbr.
> For doug, you can use Hiren's Boot to start Windows. In fact, you can use it 
> as a hidden partition system, without it, it won't startup.

Well for me it all worked well for all versions of FreeBSD until Windows 7. My 
main purpose was to document the link given to me by a friend who does user 
support for a local college. Before Vista the boot process was pretty simple, 
the MBR was one sector on sector 0, track 0 and it read the first sector of the 
target partition who took it from there.

My experience with FreeBSD 7.0 to present has been that the install does not 
work with Windows 7. It appears that the MBR can still only have 4 entries. 
Windows 7 gets more by using extended partitions. Dell, the there can be only 
one and let it be Windows company, uses two small partitions for something. It 
may be that some of that underlying stuff is not needed but I had enough trouble 
without without making changes at that level.

If FreeBSD can be installed in an extended partition, that would be a very 
useful howto.

Douglas Denault
doug at safeport.com
Voice: 301-217-9220
   Fax: 301-217-9277

More information about the freebsd-questions mailing list