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Windows 7: Win7 installed to SDHC how?

05 Mar 2009   #11
limneos

Windows 7 RC 7100 32bit/64bit
 
 

Or then again, read this post where this guy gives a how-to about doing that on Vista..It should work just the same on 7.

Vista external USB boot | The Coffeehouse | Channel 9


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08 Mar 2009   #12
TehMwak

Ubuntu 9.04 alpha 5 --Still working on restoring the backtrack kernal...
 
 

I finally got it to boot from sd. But I cant keep it stable. (Using grub/modified sd driver)

However getting it to install to USB is quite simple and stable as far as I can tell. But that still doesnt help me.

Anyway, thanks for trying to help I guess I'll have to install it to a 5gig partition on my hard-drive...
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08 Mar 2009   #13
Night Hawk

W7 Ultimate x64/W10 Pro x64 dual boot main build-remote pc W10 Pro x64 Insider Preview/W7 Pro x64
 
 

You'll want to see a bit more then 5gb of hard drive space for 7. As far as keeping any version of Windows stable on an external drive or device?

Total waste of time! The boot configuration would be a constant hassle just to start with. 7 has been running stable here on a 200gb partition with XP on the first of two since it was first installed with the exception of a few minor 3rd party software problems seen at first.
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09 Mar 2009   #14
TehMwak

Ubuntu 9.04 alpha 5 --Still working on restoring the backtrack kernal...
 
 

Quote   Quote: Originally Posted by Night Hawk View Post
You'll want to see a bit more then 5gb of hard drive space for 7.
Well. I dont need any more than 500mb free.

I have win7 just for the ability to upload pre-programmed rom files via serial rs232...

And I've been bored and decided to overclock my eeepc 900HA under win7... I got a 1186. I have the fastest eeepc 900HA running win7 in the world... *evil laugh*

ASUSTeK Computer INC. 900HA : Geekbench Result Browser
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09 Mar 2009   #15
jimbo45

Linux CENTOS 7 / various Windows OS'es and servers
 
 

Hi there
problem is actually quite easy . A USB drive can be selected as a bootable drive on most modern machines by the Boot menu in the BIOS. Just select the USB drive. (Of course you'll have to have a proper boot record etc on the USB stick but there are loads of posts on the internet saying how you can create a Bootable USB stick.

Now when it comes to a SDHC reader there isn't any option in the BIOS to boot from this.
The best you can do is actually use something like GRUB (Linux) which presents a boot menu from which you can then continue the boot from the card reader. The GRUB / other bootloader will have to be installed on a bootable device recognized by the BIOS.

Cheers

jimbo
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09 Mar 2009   #16
Night Hawk

W7 Ultimate x64/W10 Pro x64 dual boot main build-remote pc W10 Pro x64 Insider Preview/W7 Pro x64
 
 

I presently had no problem seeing ubuntu install to a usb flash drive with all internal drives unplugged to avoid anything but the default boot entries in the Grub loader there. But a small distro is portable compared to Windows on anything other then an internal drive due to a Grub or Lilo boot loader used there.

As far as only 500mb extra drive space needed that is still far from enough.

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10 Mar 2009   #17
jimbo45

Linux CENTOS 7 / various Windows OS'es and servers
 
 

Hi there

Perhaps I've missed the point but I assumed the OP was talking about a SDHC Card read directly from a built in card reader on the computer. This is not a USB flash drive.

(An SDHC card in a USB reader however is a USB device BTW -- I'm talking specifically about those built in card readers on laptops / desktops where you insert the card directly).

As I pointed out in the post there's not much problem in booting from USB's if the BIOS allows you to do it and even using GRUB is OK since the USB can be accessed via a BIOS call anyway.

The problem with SDHC cards and the like is that the READER software driver has to be loaded first before the card can be accessed -- and there isn't any BIOS call to these devices as yet (unless you have a really new machine with SDHC bootable options in the media.

For instance a lot of the built in multi card readers on laptope etc use the O2Micro driver to access the cards --this is only loaded when the main OS kernel (whether Windows or Linux) starts.

Cheers
jimbo
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10 Mar 2009   #18
TehMwak

Ubuntu 9.04 alpha 5 --Still working on restoring the backtrack kernal...
 
 

Quote   Quote: Originally Posted by jimbo45 View Post
The problem with SDHC cards and the like is that the READER software driver has to be loaded first before the card can be accessed -- and there isn't any BIOS call to these devices as yet (unless you have a really new machine with SDHC bootable options in the media.
I have an EEEpc 900HA which does support SDHC media boots.

And to quote myself;
Quote   Quote: Originally Posted by tehmwak45 View Post
I finally got it to boot from sd. But I cant keep it stable. (Using grub/modified sd driver)

However getting it to install to USB is quite simple and stable as far as I can tell. But that still doesnt help me.

Anyway, thanks for trying to help I guess I'll have to install it to a 5gig partition on my hard-drive...
I found it wasn't impossible, just not worth the effort. Windows is fine with just over 500mb free space... sitting... Rarely used for anything other than beating other peoples benchmarks when they complain about how xp is faster than win7...

And the occasional work-related use... Which I installed it for originally...

That's for the tips...

**PS nighthawk, I really dont need more than 500mb of free space after a win7 install. It only takes up 4.5gig on my hard-drive -without- being vlited. Perfect.
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10 Mar 2009   #19
Night Hawk

W7 Ultimate x64/W10 Pro x64 dual boot main build-remote pc W10 Pro x64 Insider Preview/W7 Pro x64
 
 

For a quikc basic install the MS info there more or less climbs over a bit allowing for the paging file and some basic softwares along with the video and sound drivers/softwares there. It stands to reason you would be able cut that amount down considerably. They looked at there as long term and adding new programs as you go along.
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24 Mar 2009   #20
Novim

Windows 7
 
 

Looking at this discussion which ends in confusion, I'd like just to put again the question in simple way:

Is is possible to install Wndows 7 onto a SDHC card and boot it from it (it seems not, but let us confirm it once for all)?
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 Win7 installed to SDHC how?




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