My jigdo download won complete because the .jigdo file is broken. When I download a new, fixed .jigdo file, do I need to download all the data over again?
You may find that the .jigdo file you downloaded is broken. It’s uncommon, but it does happen from time to time with moving targets like Debian testing or unstable. If you find that .jigdo is broken, you’ll need to download a new .jigdo file (when a fixed one becomes available), but you won’t need to download all the ISO data again. You can use the same loop mounting trick we use when updating an ISO image. The difference is that there’s no finished .iso file to start with, but the .iso.tmp file is an ISO image too and can be used to finish the download without having to re-download all the data that was downloaded before the broken .jigdo file caused jigdo-lite to halt. Simply loop mount the .iso.tmp file on /mnt and when you re-run jigdo-lite with the fixed .jigdo file, tell jigdo-lite to scan /mnt. Don’t forget to rename or move the .iso.tmp file so it doesn’t interfere with jigdo-lite which will want to create a new .iso.tmp file.
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