Question migrating large disk from xp64

someduude

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Sep 30, 2013
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I find that my large xp64 created GPT disk partitions are not seen by win7 or win10.
both OS just offer to initialize the already data heavy disks.
I tried to initialize and partition a large gpt disk from win10 and install it to the xp64 machine hoping
to copy the files to a partition scheme that win10 could use but no luck there either.
the only solution i see is to copy over via LAN but it seems there should be a better solution.
why would win10 not recognize microsofts xp64 scheme?

these drives are not OS contianing drive but for storage only.
thx
 

Colif

Win 10 Master
Moderator
Do you mean Win XP 64 bit?
XP Service pack 2 should recognise GPT drives - https://answers.microsoft.com/en-us/windows/forum/all/does-windows-xp-x64-support-gpt-partition-table/c5d3c31b-a4e2-46d0-a384-632b33a7d04d and you know that since you created some.

https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/windows-and-gpt-faq

AFAIK GPT format hasn't changed since introduction. there is no real need as we not even scratched surface of its data storage capabilities. So I am unsure why neither can read drives. Have you tried booting off a linux liveusb and see if it can access them? - https://tutorials.ubuntu.com/tutorial/tutorial-create-a-usb-stick-on-windows
 

someduude

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Sep 30, 2013
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Do you mean Win XP 64 bit?
XP Service pack 2 should recognise GPT drives -
yes

sorry for the delayed reply.

i have found that the problem is related to confusion about the raid driver and controller config.

Foxconn a78ax AMD chipset

i have a choice of using a raid driver or sata driver for the same sata controller device.

i installed a large GPT drive formatted and loaded
on another machine running win10PE and again it was not recognized and was offered to initialize it.
i previously had the raid driver installed and decided to switch to the sata driver and viola this newly connected disk files became visable however the
two older natively` installed and formatted drives
became inaccessible.
oddly one of them prompted the offer to initialize
and the other claimed to be unformatted.
I suppose I should stay with the SATA driver and somehow format and re-load the other two disks?
i also changed the combined mode to disable to commit all ports to sata but saw no change , this was after uninstalling the raid driver tho.
 
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someduude

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Sep 30, 2013
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i edited the previous post.
i did have a data corruption but i know
what caused it.
i dont want it confusing the issue i posted here.
i will be testing the sata driver again.
 

someduude

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Sep 30, 2013
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why the **** would AMD make a driver that writes
data not readable by conventional sata controller chips?


so to fix this i'm thinking i need to add a pci SATA card or i need to copy some terabytes
via LAN.

am i going to be able to move the drives created on the pci card to other machines or same issue with that also?
 

someduude

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Sep 30, 2013
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update;
this is a bonehead move i made and forgot about.
last year i was experimenting with the raid feature and inserted a couple disks into a JBOD.
since i have no clue what i'm doing when it comes to raid i dont know if i can un-raid them.
since i cant seem to work with regular disks without changing bios setting that makes those loaded drives
unreadable, i ordered a sata card.
drives created in the sata card should be readable in other machines no?
 
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