install to external usb disk oops

Justin C. Sherrill justin at
Sat Mar 25 18:58:41 PST 2006

On Sat, March 25, 2006 3:57 pm, Bob Bagwill wrote:
> I successfully installed 1.5 to an external USB disk drive but during the
> "install boot block" phase, it overwrote the partition table and bootblock
> of my internal disk.  I thought I was careful to select /dev/da0 not
> /dev/ad0,
> but who knows?  I recovered the partitions with gpart, but WinXP still
> doesn't boot successfully. :-(
> If I'm feeling masochistic, I could try the install again, and see if the
> bsdinstaller did it.

If XP is still scrambled even after retrying, a MSDOS boot disk may be
able to restore the MBR the way Windows wants it (fdisk /mbr), after which
you would probably need to boot DragonFly from a CD and modify the
bootloader with boot0cfg.

Caveat: I haven't tried this.

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