All, Attempting an arch install tonight, and I get the following at pacstrap /mnt :: Proceed with installation? [Y/n] :: Retrieving packages... krb5-1.13.7-1-x86_64 1100.1 KiB 1405K/s 00:01 [######################################] 100% libpsl-0.16.1-1-x86_64 49.8 KiB 3.74M/s 00:00 [######################################] 100% (155/155) checking keys in keyring [######################################] 100% (155/155) checking package integrity [######################################] 100% error: krb5: signature from "Levente Polyak (anthraxx) <levente@leventepolyak.net>" is unknown trust :: File /mnt/var/cache/pacman/pkg/krb5-1.13.7-1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)). Do you want to delete it? [Y/n] error: libpsl: signature from "Levente Polyak (anthraxx) <levente@leventepolyak.net>" is unknown trust :: File /mnt/var/cache/pacman/pkg/libpsl-0.16.1-1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)). Do you want to delete it? [Y/n] error: failed to commit transaction (invalid or corrupted package) Errors occurred, no packages were upgraded. ==> ERROR: Failed to install packages to new root What was this caused by? I had to boot from the 10/2016 iso. Is it a change in signatures since then? I'll download a new iso and try, but I'd be surprised if an iso less than 5 months old no longer works? -- David C. Rankin, J.D.,P.E.