it seems i read too fast. i still think the bios is your issue, but to
uninstall grub on that hdd, do this:
dd if=/dev/zero of=/dev/<device> bs=446 count=1

if i'm right, instead of seeing welcome to grub, you'll just see a blinking
cursor after doing this (i think).

On Sun, Dec 5, 2010 at 1:38 AM, shawn wilson <ag4ve...@gmail.com> wrote:

> are you sure you don't have grub installed on that usb hdd?
>
> either way, if you're not going to be booting off of usb devices on a
> regular basis, go into the bios and put usb lower in the boot order. i've
> seen things like usb mice and hubs mess with usb at boot time (not kidding).
>
>
> On Sun, Dec 5, 2010 at 1:04 AM, Peter Tenenbaum <
> peter.g.tenenb...@gmail.com> wrote:
>
>> Hi everyone --
>>
>> My squeeze home machine cannot boot when an external hard drive is
>> connected via USB.  When the drive is disconnected, booting occurs normally;
>> but when it is connected, I get a "Welcome to Grub!" message and then
>> nothing further happens.
>>
>> I've tried going into the boot menu in BIOS and setting the boot order so
>> that the external hard drive is used last, but I still have this problem.
>> It seems like it must be at least partially successful in booting off the
>> internal hard drives, since they have grub2 installed but the external hard
>> drive does not.
>>
>> Any suggestions for how I can configure the system so that it does not get
>> into trouble when the external hard drive is connected?
>>
>> Thanks in advance,
>> -PT
>>
>
>

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