just use dd with option conv=fsync and a reasonable blocksize like bs=1M. make sure you know which ssd is the one you read from and which you write to. command lsblk might be helpful here.
just use dd with option conv=fsync and a reasonable blocksize like bs=1M. make sure you know which ssd is the one you read from and which you write to. command lsblk might be helpful here.
remember that it can get messed up when you copy a partition in use. you should use a live system (boot from usb or cdrom) to do the copying.