In article <ji3us8$21k$>, BillW50 <> wrote:
>In news:4f457813$0$1435$,
>Tazz wrote:
>> I was given a HP laptop with a bad hdd. I have a new one ordered but
>> was wondering, since this laptop (HP Pavillion) has a SD card reader
>> would I be able to install the OS (Vista) to a SD card and run it
>> without a hdd? My guess is no, I don't know if the install disk would
>> see the card reader without some special drivers loaded first . All
>> of the stuff I found with Google was from 2009 or so. I couldn't find
>> anything *exactly* like I want to do though.
>>
>> I don't have a spare SD card or I'd try, it don't really matter since
>> I have a hdd ordered but it would be pretty cool it it would work.
>
>Internal SD(HC) slots are generally wired to an internal USB. And when
>Windows boots, it resets the USB ports in the middle of booting and thus
>hangs if the USB is the boot device. There are ways around this problem
>though. There are some hacks and Casper (commercial) claims to be able
>to boot Windows from an USB device.
>
>So yes it is possible and it might be a lot of work. Although USB2
>devices don't have a lot of bandwidth and it would be much slower than
>an internal drive using PATA or SATA. Also SD(HC) cards also don't have
>the speed of a conventional hard drive or a SSD. SO unless you have a
>real good reason to run off of a SD card, it generally isn't worth it.
I booted Win7 off a Seagate FreeAgent USB hard drive for quite a while, using
an NT6 Rapid Install script that also installs the required USB hacks. It
worked reasonably well until I mistakenly installed SP1 which rendered it
unbootable. End of experiement, though the author subsequently fixed that
in a later release.
http://www.boot-land.net/forums/inde...howtopic=10126