My desktop will not boot without the USB drive in it

[Randy Wyatt]

On 5/6/06, Derek Tattersall <tatters at newsguy.com> wrote:
> I just replaced the drive in my laptop. I wanted to get some files off
> of the old one so I put it into a USB enclosureand plugged it into my
> desktop machine. I was able to access the files in the Logical Volume on
> the old drive using the instructions in an article in this month's Linux
> Journal. Like so:
>
> First I got the device info off the drive:
>
>   dd if=/dev/sdh3 bs=512 count=255 skip=1 of=/etc/lvm/backup/VolGroup01
>
> and edited VolGroup01 to remove all the binary cruft, and label the
> physical device correctly.
>
> then:
>
>   vgcfgrestore -r VolGroup01 VolGroup01
>   vgchange VolGroup01 -a y
>
> and the filesystem was in /dev/VolGroup01/LogVol00. So far so good.
>
> I unmounted the filesystem, and removed the USB drive.
>
> There was one problem though. Now my desktop machine will not boot
> without the USB drived plugged into it. It won't even get as far as
> loading grub. The machine goes through the power on bios screens,
> identifies the internal (SATA) drive and then hangs with a blinking
> cursor. I went into the bios setup, and the USB drive is not in the boot
> order. I even reinstalled grub with the USB drive disconnected.
>
> So, what did I do wrong, and how do I fix it?
>
>
> Thanks.
>
> Derek Tattersall
>
>
>
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Boot with the rescue disk.  You will have to make sure that vg01 is
removed now that you
have gotten the information off of it.

One simple way is the vgchange -a n VolGroup01

If you no longer have a vg01,  just vgremove it