Les Mikesell wrote:
If you know how to reinstall the multi-boot setup, you should be able to use clonezilla-live to clone specific partitions and either reinstall others or use a file oriented copy technique. And if you have another machine or disk to hold the image you can make a compressed image file copy as a backup in case your drive dies before you decide how you want to set up the replacement.
Yes, thanks for all your help.
I have decided to use clonezilla, as I discovered on further reading about Acronis WD version that "clone" for them means "clone a whole disk"; and I couldn't find any firm statement that this operation actually left anything on the source disk. (They use the term "transfer" throughout.)
I found the Acronis documentation hard to follow; but to be fair Clonezilla documentation is fairly obscure too.