sha256sum check fails

[kai]

I've just downloaded kubuntu-17.10-desktop-amd64.iso via torrent. The sha256sum check fails and neither Ark nor K3b can open this iso file.

KTorrent did not give any errors and completed the download to 100%.

The produced sha256 is:
796dced242537f3ec3a9bbfb40c9d3188fe547b1a021df2fe3ce8f992176a694

File size is 1758167040 Byte.

cheers

[Rik Mills (rikmills)]

I just downloaded kubuntu-17.10-desktop-amd64.iso from our website torrent link, and did the checksum.

The file checks ok with a sha256 of 0aff4df0ff4d172bebaee1a6291ca6ab557f57046858c0c8242e6af69c380033

I would suggest that you right click the torrent in ktorrent, and do "check data" to find any corrupted chunks. Ktorrent can also be set to do such a check on download completion in it's bittorent options.

[Marco Parillo (marco-parillo)]

From http://cdimage.ubuntu.com/kubuntu/releases/artful/release/SHA256SUMS
0aff4df0ff4d172bebaee1a6291ca6ab557f57046858c0c8242e6af69c380033 *kubuntu-17.10-desktop-amd64.iso
cfead68e84717ee5612c6f19e4b33b0684d7cca3508774baee6dd74817937e2f *kubuntu-17.10-desktop-i386.iso

$ zsync http://cdimage.ubuntu.com/kubuntu/releases/artful/release/kubuntu-17.10-desktop-amd64.iso.zsync
...
verifying download...checksum matches OK
used 1253904384 local, fetched 505510493

$ sha256sum kubuntu-17.10-desktop-amd64.iso
0aff4df0ff4d172bebaee1a6291ca6ab557f57046858c0c8242e6af69c380033 kubuntu-17.10-desktop-amd64.iso

[kai (kai-m)]

Right clicking in KTorrent and "check data" showed 1 error. But without any reason.
KTorrent even continued uploading.

However, no failure on kubuntu-website.
Closing Ticket.