Protecting fixed CF with disk resident EWF overlay

Posted: 05-17-2006, 10:33 PM
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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Responses to "Protecting fixed CF with disk resident EWF overlay"

Sean Liming \(eMVP\)
Guest
Posts: n/a
 
Re: Protecting fixed CF with disk resident EWF overlay
Posted: 05-18-2006, 05:51 AM

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@nospam.com> wrote in message
news:%23BQSfHgeGHA.3484@TK2MSFTNGP02.phx.gbl...
> 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!
>

Reply With Quote
jimt
Guest
Posts: n/a
 
Re: Protecting fixed CF with disk resident EWF overlay
Posted: 05-18-2006, 04:55 PM
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@sjjmicro.com> wrote in message
news:O9Cni8jeGHA.1204@TK2MSFTNGP02.phx.gbl...
>
> 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@nospam.com> wrote in message
> news:%23BQSfHgeGHA.3484@TK2MSFTNGP02.phx.gbl...
>> 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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Sean Liming \(eMVP\)
Guest
Posts: n/a
 
Re: Protecting fixed CF with disk resident EWF overlay
Posted: 05-19-2006, 01:06 AM

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@TK2MSFTNGP04.phx.gbl...
> 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@sjjmicro.com> wrote in message
> news:O9Cni8jeGHA.1204@TK2MSFTNGP02.phx.gbl...
>>
>> 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@nospam.com> wrote in message
>> news:%23BQSfHgeGHA.3484@TK2MSFTNGP02.phx.gbl...
>>> 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!
>>>
>>
>>
>
>

Reply With Quote
jimt
Guest
Posts: n/a
 
Re: Protecting fixed CF with disk resident EWF overlay
Posted: 05-19-2006, 06:48 PM
Yes, I have the book. I found the section you mention (19.3.5 - Scenario
4). I confess I had not got that far into the book yet. This does cover
the case I asked about.

In Scenario 4 there are two fixed media... the booted CF and the spare IDE
hard drive. How does EWF know to use the hard drive for the EWF partition?
I see that the XPe boot image on the CF is configured to use disk overlay,
Does EWF search the CF for space after the first partition, find none, and
then go on to find space on the HD and use it for the EWF partition?

Bye,

jimt

"Sean Liming (eMVP)" <sean_liming@sjjmicro.com> wrote in message
news:%23Fuq7BueGHA.4900@TK2MSFTNGP02.phx.gbl...
>
> 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@TK2MSFTNGP04.phx.gbl...
>> 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@sjjmicro.com> wrote in message
>> news:O9Cni8jeGHA.1204@TK2MSFTNGP02.phx.gbl...
>>>
>>> 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@nospam.com> wrote in message
>>> news:%23BQSfHgeGHA.3484@TK2MSFTNGP02.phx.gbl...
>>>> 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!
>>>>
>>>
>>>
>>
>>
>
>

Reply With Quote
Sean Liming \(eMVP\)
Guest
Posts: n/a
 
Re: Protecting fixed CF with disk resident EWF overlay
Posted: 05-20-2006, 12:13 AM

The ewfdll.dll starts with disk0, disk1, disk2,.... looking for empty space to create an EWF partition. If there is a partition followed by unpartition space big enough to hold the EWF parition, than ewfdll.dll will create one. If a drive does have any partitions, ewfdll.dll will fail to create one, and revert to RAM-REG. This is a trick I found experimenting when writing the first book.

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:%23R2bgT3eGHA.1272@TK2MSFTNGP03.phx.gbl...
> Yes, I have the book. I found the section you mention (19.3.5 - Scenario
> 4). I confess I had not got that far into the book yet. This does cover
> the case I asked about.
>
> In Scenario 4 there are two fixed media... the booted CF and the spare IDE
> hard drive. How does EWF know to use the hard drive for the EWF partition?
> I see that the XPe boot image on the CF is configured to use disk overlay,
> Does EWF search the CF for space after the first partition, find none, and
> then go on to find space on the HD and use it for the EWF partition?
>
> Bye,
>
> jimt
>
> "Sean Liming (eMVP)" <sean_liming@sjjmicro.com> wrote in message
> news:%23Fuq7BueGHA.4900@TK2MSFTNGP02.phx.gbl...
>>
>> 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@TK2MSFTNGP04.phx.gbl...
>>> 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@sjjmicro.com> wrote in message
>>> news:O9Cni8jeGHA.1204@TK2MSFTNGP02.phx.gbl...
>>>>
>>>> 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@nospam.com> wrote in message
>>>> news:%23BQSfHgeGHA.3484@TK2MSFTNGP02.phx.gbl...
>>>>> 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!
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>
Reply With Quote
jimt
Guest
Posts: n/a
 
Re: Protecting fixed CF with disk resident EWF overlay
Posted: 05-20-2006, 04:44 AM
Yup, that explains it. No mention of this in the XP Studio help screens. Good thing we have your books and this news group.

Thanks!

--
JimT
"Sean Liming (eMVP)" <sean_liming@sjjmicro.com> wrote in message news:Oy4fuI6eGHA.4932@TK2MSFTNGP03.phx.gbl...

The ewfdll.dll starts with disk0, disk1, disk2,.... looking for empty space to create an EWF partition. If there is a partition followed by unpartition space big enough to hold the EWF parition, than ewfdll.dll will create one. If a drive does have any partitions, ewfdll.dll will fail to create one, and revert to RAM-REG. This is a trick I found experimenting when writing the first book.

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:%23R2bgT3eGHA.1272@TK2MSFTNGP03.phx.gbl...
> Yes, I have the book. I found the section you mention (19.3.5 - Scenario
> 4). I confess I had not got that far into the book yet. This does cover
> the case I asked about.
>
> In Scenario 4 there are two fixed media... the booted CF and the spare IDE
> hard drive. How does EWF know to use the hard drive for the EWF partition?
> I see that the XPe boot image on the CF is configured to use disk overlay,
> Does EWF search the CF for space after the first partition, find none, and
> then go on to find space on the HD and use it for the EWF partition?
>
> Bye,
>
> jimt
>
> "Sean Liming (eMVP)" <sean_liming@sjjmicro.com> wrote in message
> news:%23Fuq7BueGHA.4900@TK2MSFTNGP02.phx.gbl...
>>
>> 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@TK2MSFTNGP04.phx.gbl...
>>> 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@sjjmicro.com> wrote in message
>>> news:O9Cni8jeGHA.1204@TK2MSFTNGP02.phx.gbl...
>>>>
>>>> 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@nospam.com> wrote in message
>>>> news:%23BQSfHgeGHA.3484@TK2MSFTNGP02.phx.gbl...
>>>>> 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!
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>
Reply With Quote
Sean Liming \(eMVP\)
Guest
Posts: n/a
 
Re: Protecting fixed CF with disk resident EWF overlay
Posted: 05-20-2006, 07:23 AM
It was a painfull experience to figure it out. Once I wrote the EWF chapter, I thought I was done with EWF, until I ran into CF and EWF. What was a planed for a few hours, took a week.

Good luck.

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:OsOuJg8eGHA.5088@TK2MSFTNGP02.phx.gbl...
Yup, that explains it. No mention of this in the XP Studio help screens. Good thing we have your books and this news group.

Thanks!

--
JimT
"Sean Liming (eMVP)" <sean_liming@sjjmicro.com> wrote in message news:Oy4fuI6eGHA.4932@TK2MSFTNGP03.phx.gbl...

The ewfdll.dll starts with disk0, disk1, disk2,.... looking for empty space to create an EWF partition. If there is a partition followed by unpartition space big enough to hold the EWF parition, than ewfdll.dll will create one. If a drive does have any partitions, ewfdll.dll will fail to create one, and revert to RAM-REG. This is a trick I found experimenting when writing the first book.

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:%23R2bgT3eGHA.1272@TK2MSFTNGP03.phx.gbl...
> Yes, I have the book. I found the section you mention (19.3.5 - Scenario
> 4). I confess I had not got that far into the book yet. This does cover
> the case I asked about.
>
> In Scenario 4 there are two fixed media... the booted CF and the spare IDE
> hard drive. How does EWF know to use the hard drive for the EWF partition?
> I see that the XPe boot image on the CF is configured to use disk overlay,
> Does EWF search the CF for space after the first partition, find none, and
> then go on to find space on the HD and use it for the EWF partition?
>
> Bye,
>
> jimt
>
> "Sean Liming (eMVP)" <sean_liming@sjjmicro.com> wrote in message
> news:%23Fuq7BueGHA.4900@TK2MSFTNGP02.phx.gbl...
>>
>> 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@TK2MSFTNGP04.phx.gbl...
>>> 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@sjjmicro.com> wrote in message
>>> news:O9Cni8jeGHA.1204@TK2MSFTNGP02.phx.gbl...
>>>>
>>>> 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@nospam.com> wrote in message
>>>> news:%23BQSfHgeGHA.3484@TK2MSFTNGP02.phx.gbl...
>>>>> 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!
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>
Reply With Quote
jimt
Guest
Posts: n/a
 
Re: Protecting fixed CF with disk resident EWF overlay
Posted: 06-14-2006, 10:23 PM
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@sjjmicro.com> wrote in message
news:%23Fuq7BueGHA.4900@TK2MSFTNGP02.phx.gbl...
>
> 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@TK2MSFTNGP04.phx.gbl...
>> 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@sjjmicro.com> wrote in message
>> news:O9Cni8jeGHA.1204@TK2MSFTNGP02.phx.gbl...
>>>
>>> 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@nospam.com> wrote in message
>>> news:%23BQSfHgeGHA.3484@TK2MSFTNGP02.phx.gbl...
>>>> 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!
>>>>
>>>
>>>
>>
>>
>
>

Reply With Quote
Sean Liming \(eMVP\)
Guest
Posts: n/a
 
Re: Protecting fixed CF with disk resident EWF overlay
Posted: 06-14-2006, 11:35 PM

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@TK2MSFTNGP05.phx.gbl...
> 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@sjjmicro.com> wrote in message
> news:%23Fuq7BueGHA.4900@TK2MSFTNGP02.phx.gbl...
>>
>> 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@TK2MSFTNGP04.phx.gbl...
>>> 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@sjjmicro.com> wrote in message
>>> news:O9Cni8jeGHA.1204@TK2MSFTNGP02.phx.gbl...
>>>>
>>>> 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@nospam.com> wrote in message
>>>> news:%23BQSfHgeGHA.3484@TK2MSFTNGP02.phx.gbl...
>>>>> 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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