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Index > Heap > boot from pendrive vs boot from external hard disk

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sleepsleep



Joined: 05 Oct 2006
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sleepsleep
is there difference?

i tried using unetbootin-windows-490.exe on on pendrive, it works
but if using external hard disk, it doesn't works.
Post 12 Oct 2010, 05:03
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3200th



Joined: 23 Nov 2008
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3200th
Yes, the two are different, from the BIOS's point of view.

You need to change the boot order/sequence of the available HDDs in the BIOS - make the external HDD the top choice, above the internal HDD.

Wink
Post 12 Oct 2010, 07:29
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ManOfSteel



Joined: 02 Feb 2005
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ManOfSteel
I somehow doubt that. For the BIOS, both should be seen as "removable media". Even from inside an operating system, they will look the same since they are detected and read/written to by the same "UMASS" (USB mass storage) interface.

But why not install the operating system and then configure the usual boot manager to take care of the booting?
Post 12 Oct 2010, 12:03
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3200th



Joined: 23 Nov 2008
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3200th
ManOfSteel wrote:
I somehow doubt that.
Mad Evil or Very Mad

At least it is true for the BIOS of my netbook. Wink
Post 12 Oct 2010, 13:44
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ManOfSteel



Joined: 02 Feb 2005
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ManOfSteel
3200th wrote:
At least it is true for the BIOS of my netbook. Wink

So the pendrive appears as a "removable device" while the external disk appears as a "hard disk drive", like an internal disk?
Post 12 Oct 2010, 14:00
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sleepsleep



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sleepsleep
hmmm, somehow i doubt also...
it seems to me the problem is due to "size" of the pendrive / external hd.
Post 12 Oct 2010, 16:11
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Coty



Joined: 17 May 2010
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Coty
Depends on the BIOS... My Desktop seems to treat my pen-drive and external HDD as an internal HDD... while as my netbook calls all HDDs (internal or external)simply "HDD/SSD" and all pendrives seem to be "USB Memory"... My older computers wont boot from an external HDD, but some will boot from a pendrive...
Post 12 Oct 2010, 18:56
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sleepsleep



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sleepsleep
i got some more information about this,

it seems, when u use diskpart, select partition, active
in a usb pendrive (it wouldn't works)

but works for external hard disk..

and inside certain bios, unless u allow boot from USB floppy, they just wouldn't show ur pendrive as bootable.

thus, most probably, most USB pendrive is emulated as floppy disk, i got no evidence to support this btw, but just my experience tell so,,,
Post 21 Nov 2010, 22:57
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