Is the drive partitioned with a boot switch added? I seem to recall this being an issue with manually partitioned drives back before I didn’t care about partitioning. 

> On Aug 11, 2019, at 10:36 PM, Jeff Chapin <chapinjeff at gmail.com> wrote:
> 
> Is the boot device formatted for a legacy boot, or UEFI boot? Is the desktop configured to boot that method?
> 
> On Sun, Aug 11, 2019 at 10:08 PM Brian Wood <woodbrian77 at gmail.com <mailto:woodbrian77 at gmail.com>> wrote:
>         Shalom
> 
> I'm having trouble booting from an external drive that
> has a usb interface.  I can boot from the drive with 
> either of my laptops, but not from my desktop.  The
> desktop has a fairly new gigabyte motherboard.  I've 
> tried different boot sequences, but it either boots from 
> the desktop's internal drive or it says:  Reboot and 
> select proper boot device or insert boot media in 
> selected boot device and press a key.
> --------------------------
> I've tried using different usb ports on the desktop.
> The only idea I have is doing a bios update.  I don't
> have any idea if that would help, but don't know what
> else to try.  Any other ideas?  Thanks.
> 
> 
> Brian
> Ebenezer Enterprises - Enjoying programming again.
> https://github.com/Ebenezer-group/onwards <https://github.com/Ebenezer-group/onwards/graphs/traffic> 
> 
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> 
> 
> -- 
> Jeff Chapin
> President, CedarLug, retired
> President, UNIPC, "I'll get around to it"
> President, UNI Scuba Club
> Senator, NISG, retired
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