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Just grab an image cloning software like Acronis for example, put the both disks together and start the cloning, sector by sector. Done.
gonna want to be real careful of this with the lightning nodes, so there is no concern about force close or justice transactions. maybe better for a novice to close the channels and reopen them on the new node once it is set up.
no, cloning a disk have nothing to do with LN channels. Your node is offline anyways and you are not running both copies in the same time.
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if you don't run both at the same time then there is no justice tx risk. but if your node is offline then you cannot respond to cooperative close requests which risks a force close.
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Are you going to clone a disk in more than 2 weeks? LOL
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