According to SMART data, the hard drive I curently use is about to fail. I bought a new, bigger drive to copy the system to a safer place.
The old drive is 160GB. Ubuntu was installed with Wubi, and the partition is NTFS. There are a few other partitions around (recovery partition, swap...) that I don't care about.
The new drive is 320GB. I would like the new system to run on ext4, not on NTFS.
I looked at solutions that use dd, or clonezilla, but it seems that moving to a different filesystem prevents me from using them.
I considered installing a brand new ubuntu on the new hard drive and then copy /home from the old drive to the new drive, but I heard that there would be file permission problems. I would also have to reinstall all my software.
One last thing: the NTFS drive has dead sectors. I don't know how this can influence the copy process, but I mention it just in case.
edit: I do not care about the windows partition. I just want Ubuntu to make the transition.