Yep, same here. Fedora 25, “dnf upgrade” fails with insync unsigned error.
Delta RPMs reduced 314.9 MB of updates to 150.0 MB (52.1% saved)
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing ‘dnf clean packages’.
Error: Package insync-1.3.16.36155-fc25.x86_64.rpm is not signed
Might have to uninstall Insync to update my system.
I had the not signed issue as well. Now, I get the following (on Fedora 25):
Running transaction
Upgrading : insync-1.3.16.36155-fc25.x86_64 1/2
Error unpacking rpm package insync-1.3.16.36155-fc25.x86_64
Error unpacking rpm package insync-1.3.16.36155-fc25.x86_64
error: unpacking of archive failed: cpio: lstat
insync-1.3.16.36155-fc25.x86_64 was supposed to be installed but is not!
Verifying : insync-1.3.16.36155-fc25.x86_64 1/2
insync-1.3.14.36131-fc21.x86_64 was supposed to be removed but is not!
Verifying : insync-1.3.14.36131-fc21.x86_64 2/2