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USB Booting Support (6 posts)
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  1. In Topic: How To Create Multi-Use Flash Drive?

    Posted 21 Dec 2010

    View Post cdob, on 21 December 2010 - 01:00 PM, said:

    Next try, copy all files and folders from Windows 7 to USB drive.

    Edit menu.lst
    title Windows 7 Installation
    chainloader /bootmgr

    This worked! I still got BSOD when testing in virtual PC mode but I guess that's because of the limitation of virtual PC. When I tried it on my laptop, I was able to go all the way to the step when I was asked to choose which drive to install Windows 7. I did not go through the whole installation process because the computer is still working great. Next time when I need to do a clean installation, I will try this USB key first.

    Thanks cdob!
  2. In Topic: Error Creating Bootable Flash Drive

    Posted 21 Dec 2010

    View Post bflmpsvz, on 20 December 2010 - 10:03 AM, said:

    Then I got the "Runtime Error 76, Path Not Found" .
    There is 307 932 391 bytes written to USB flash in I386 directory.
    What should I try?

    I got that error message sometimes, too. I just start over and most of the time the second try would work. I don't know why but it seems like a hit-and-miss procedure. Just give it another try.
  3. In Topic: How To Create Multi-Use Flash Drive?

    Posted 21 Dec 2010

    I tried several defragment software. None was able to successfully defragment the iso file. But I was finally able to get that part to work.

    Instead of copying the win7.iso file to my USB drive after installing USUSB, I copied it into C:\UBCD4Win\BartPE\ images. Then I rebuilt the USB key using UBUSB.exe and edited the memu.lst as pcuser instructed me to do earlier.

    The problem now is that the windows setup still wouldn't work. In UBUSB.exe's test USB virtual PC mode, after windows loaded files and the windows logo showed up, it gives a BSOD with error code 0x000000A5. I then tried it on my desktop, no BSOD but windows set up won't continue, saying missing CD/DVD rom driver (I did not write down the exact message but it was something like that). So I gave up...
  4. In Topic: How To Create Multi-Use Flash Drive?

    Posted 21 Dec 2010

    View Post pcuser, on 20 December 2010 - 10:22 PM, said:

    Quote

    Err 60: File for drive emulation must be in one contiguous disk area


    That means that Win7.iso is fragmented on your USB drive but it needs to be in a single fragment for the ISO image to be booted directly. Use Contig or WinContig (or similar) to defragment the file and if that doesn't work then use a bigger USB drive.

    EDIT*

    Quote

    I am using my laptop to test which only has 2GB RAM


    That would only be a concern if you were loading the entire ISO image into RAM and then booting it from there but this approach does not do that, it boots the ISO image directly from the boot media.

    EDIT**

    If you actually had enough RAM to load the entire ISO image into memory then you could use another approach that doesn't require the file to be contiguous on disk.

    I am defraging the win7.iso file which seems to take painfully long time to finish. Still processing after one hour! It's only 2.35GB... I am curious about the other approach, my desktop has 3GB RAM, would that be enough to load the whole image?

    EDIT:

    I think there's something wrong with contig.exe. It wouldn't stop even after I pressed Ctrl+C.
  5. In Topic: How To Create Multi-Use Flash Drive?

    Posted 20 Dec 2010

    I got this error:

    Err 60: File for drive emulation must be in one contiguous disk area

    I am using my laptop to test which only has 2GB RAM, could this be the reason? Is there a way to avoid this without upgrading the RAM?

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