Considerations for In-Field Application Upgrades

  • Thread starter Thread starter Guest
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G

Guest

Could anyone shed any light on what considerations I should be giving to an
XPe Image that would have to be updated in the field.

I was thinking of providing that ability to revert to the previous installed
image. Is this possible?

The image will be fairly small and upgrades will be acheived from flash or CD.

The device will have a large hard drive so there is no space limitations.

One consideration I have is that the device will have data that will have to
be retaing between updates. So I cannot copy to the the complete image to the
hard drive as I would wipe out the existing data.

If anyone could let me know strategies I need to consider and implement then
let me know.

TIA,
B
 
B said:
Could anyone shed any light on what considerations I should be giving
to an XPe Image that would have to be updated in the field.

I was thinking of providing that ability to revert to the previous
installed image. Is this possible?

The image will be fairly small and upgrades will be acheived from
flash or CD.

The device will have a large hard drive so there is no space
limitations.

One consideration I have is that the device will have data that will
have to be retaing between updates. So I cannot copy to the the
complete image to the hard drive as I would wipe out the existing
data.

If anyone could let me know strategies I need to consider and
implement then let me know.

TIA,
B
Click to expand...

Some OEMs use different partitions on the harddrive to acheive this.

You could have:
c: = active os
d: = application data
e: = "previous os image"

When you need to revert, copy E: over top of C:. How do you do that?
Multiple strategies. One of which could be a WinPE boot disk that runs a
script that acheives that. Another is have another partition instead of the
WinPE boot disk. Another is playing games with the partition table. etc.
 
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