You will be offered the choice to scan the disk partition for bad blocks, as you were when you initialized the swap partition.
"Debian GNU/Linux: Guide to Installation and Usage"
John Goerzen and Ossama Othman
Use this if you are resuming an installation that was interrupted or if you want to mount partitions that have already been initialized.
"Debian GNU/Linux: Guide to Installation and Usage"
John Goerzen and Ossama Othman