I've been attempting to install Linux Mint 18 on a hard drive for a while now, but I continuously run into an error when I try to use
gpg --verify. The exact error is as follows:
$ sudo gpg --verify sha256sum.txt.gpg sha256sum.txt gpg: Signature made Thu 30 Jun 2016 05:13:33 AM MDT using RSA key ID A25BAE09 gpg: BAD signature from "Linux Mint ISO Signing Key <firstname.lastname@example.org>"
UPDATE: Now that I'm retrying all the steps to make sure I did everything correctly, I run into this error when I attempt to import the keys with the commands given on the Linux Mint website, here.
$ gpg --keyserver keyserver.ubuntu.com --recv-key "27DE B156 44C6 B3CF 3BD7 D291 300F 846B A25B AE09" gpg: requesting key A25BAE09 from hkp server keyserver.ubuntu.com gpg: [don't know]: invalid packet (ctb=22) gpg: keydb_get_keyblock failed: eof gpg: [don't know]: invalid packet (ctb=22) gpg: /home/morsira/.gnupg/pubring.gpg: copy to `/home/morsira/.gnupg /pubring.gpg.tmp' failed: invalid packet gpg: error writing keyring `/home/morsira/.gnupg/pubring.gpg': invalid packet gpg: [don't know]: invalid packet (ctb=22) gpg: keydb_search failed: invalid packet gpg: key A25BAE09: public key "[User ID not found]" imported gpg: error reading `[stream]': invalid packet gpg: Total number processed: 0 gpg: imported: 1 (RSA: 1)