Re: Protecting fixed CF with disk resident EWF overlay
- From: "Sean Liming \(eMVP\)" <sean_liming@xxxxxxxxxxxx>
- Date: Wed, 14 Jun 2006 16:35:07 -0700
It worked in SP1 and I thought I double checked this in SP2, but it has been
awhile. It is not going to hurt anything to give it a try. You will have to
have at least one partition on the second for the EWF volume to be created.
Regards,
Sean
"jimt" <jim_underscore_thalmann_@_avid_dot_com> wrote in message
news:OMoEvEAkGHA.4284@xxxxxxxxxxxxxxxxxxxxxxx
Hi Sean,
I found on later review that the XPe Studio TD help says that locating an
EWF volume on a different drive than the drive containing the protected
volume is not supported. On the XPe SP2 TD Help page entitled "EWF Disk
Mode" I see this:
"EWF Disk mode requires unpartitioned space on the same disk that
contains the protected volume. The EWF volume and Overlay, collectively
referred to as the EWF Partition, cannot be created on a separate disk or
on a raw, unpartitioned disk."
Sean, I think this means it might work, based on your experiments
mentioned in Chapter 10, but apparently it is not supported by Microsoft.
Is it really safe to do?
I would be curious to hear your thoughts, in light of this quote. Thanks,
--
JimT
"Sean Liming (eMVP)" <sean_liming@xxxxxxxxxxxx> wrote in message
news:%23Fuq7BueGHA.4900@xxxxxxxxxxxxxxxxxxxxxxx
Do you have Windows XP Embedded Advanced?
Chapter 10 discusses the EWF specs, and Chapter 19 discusses the
secenario that you are looking for. The setup is that the IDE flash is
completely allocated and is the primary disk. The hard drive has a
non-bootable partition with unalocated space large enough for the EWF
volume with Disk overlay. As the EWF volume gets created, the FBAdll.dll
will look for the first free unalocated space following a partition, in
this case the space on the hard drive.
Regards,
Sean Liming
www.sjjmicro.com / www.seanliming.com
XP Embedded Book Author - XP Embedded Advanced, XP Embedded Supplemental
Toolkit.
"jimt" <jim_underscore_thalmann_@_avid_dot_com> wrote in message
news:urO$vvpeGHA.1324@xxxxxxxxxxxxxxxxxxxxxxx
The nonboot media would be a second unbooted hard drive, D:, partitioned
to support a EWF partition. The booted "C:" drive would be the IDE
flash drive. Yes, we would use disk overlays of C: and the disk
overlays would be located on the unbooted HD at D:.
Unless I'm missing something, all the procedures in the documentation
places the disk overlay on the booted media. What procedures would
place the EWF volume and the overlays onto the unbooted spare HD? Would
we need to disable the FBA creation of the EWF volume, and create the
EWF partition by hand somehow?
Thanks very much for any tips...
--
jimt (aka Jim_NoSpam_T)
"Sean Liming (eMVP)" <sean_liming@xxxxxxxxxxxx> wrote in message
news:O9Cni8jeGHA.1204@xxxxxxxxxxxxxxxxxxxxxxx
Nonboot media as flash or ROM? OR a second non-bootable hard drive?
If a second non-bootable hard drive, the answer is yes. The EWF volume
can be placed on a second hard drive so longs as there is one partition
already on the drive.
Are you using Disk Overlay?
Regards,
Sean Liming
www.sjjmicro.com / www.seanliming.com
XP Embedded Book Author - XP Embedded Advanced, XP Embedded
Supplemental Toolkit.
"Jim_NoSpam_T" <nospam@xxxxxxxxxx> wrote in message
news:%23BQSfHgeGHA.3484@xxxxxxxxxxxxxxxxxxxxxxx
XPe SP2: We would like to boot a fixed IDE flash drive and deploy the
EWF overlays to a separate hard drive. This would permit overlay
stacking with flash media and allow selective layered updates to the
more reliable flash drive as required.
None of the help screens place the EWF partition on nonboot media.
All three modes (disk mode, ram mode, ram + Reg) all place the EWF
overlay on the boot media or system RAM.
Is there a way to locate overlays on nonboot media? Observations
would be most welcome. Thanks!
.
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