I can confirm this bug for my upgrade from Dapper to Edgy. I tried the solutions mentioned by tonfa and jens_acamedia and it works for me! Thank you.
-- After upgrade from dapper to edgy, swap space is discarded, system fails to hibernate (invalid swap signature) https://launchpad.net/bugs/66637 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
