[ipxe-devel] WinPE 3.0, boot with iSCSI target

Marek Salwerowicz marek_sal at wp.pl
Mon Mar 26 23:05:28 BST 2012

W dniu 2012-03-14 19:01, Michael Brown pisze:
> On Wednesday 14 Mar 2012 15:22:01 Andrew Bobulsky wrote:
>> Double check the contents of your ISO file.  If you're attempting to
>> boot a flat WinPE ISO, where you see a \Windows and \Program Files
>> directory, while you *shouldn't* be experiencing an error reading the
>> BCD, it will fail at a later point in time.  Generally, you'll only be
>> able to SAN-Boot a WinPE ISO that extracts the PE from a .wim file,
>> usually located in \Sources\boot.wim.
>> Second, I'm guessing that you're attempting to install directly to an
>> iSCSI target.  You'll want to change your 'sanhook' directive to omit
>> the '--no-describe' option.  That option prevents the SAN disk from
>> being written into the iBFT, and as such it will not get passed to
>> your WinPE when it boots.  Also, you *may* have more success if you
>> mount the ISO as a drive letter more formally seen as an optical disk,
>> such as 0xE0.  As such, your new boot commands would look like:
>> dhcp
>> set keep-san 1
>> sanhook --drive 0x80 iscsi:
>> sanboot --drive 0xE0 --no-describe
>> It's entirely possible that this might not work at all, or leave you
>> in the exact same situation.  But, I've had a few minor tweaks like
>> those resolve some issues with more stubborn machine BIOSes in the
>> past, and hope that it might work for you ;)
> This is great stuff, and I'd really like to write up a Howto guide for using
> WinPE to carry out a direct iSCSI installation, since it's becoming a FAQ.  Do
> you have any recommendations on the best way to construct a suitable WinPE
> ISO?  (Can you use the raw .wim images from the OS installation DVD?  What
> extra files do you need to add to make a bootable ISO from the .wim?)

Did you received any check information about how to prepare WinPE 3.0 
for Win7 iSCSI installation and boot ?

Marek Salwerowicz

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