Gpg: key C0B21F32: public key "Ubuntu Archive Automatic Signing Key (2012) " imported Gpg: requesting key C0B21F32 from hkp server $ sudo apt-key adv -keyserver -recv-keys 3B4FE6ACC0B21F32Įxecuting: gpg -ignore-time-conflict -no-options -no-default-keyring -homedir /tmp/tmp.77TqYGKU7b -no-auto-check-trustdb -trust-model always -keyring /etc/apt/trusted.gpg -primary-keyring /etc/apt/trusted.gpg -keyserver -recv-keys 3B4FE6ACC0B21F32 Gpg: key 437D05B5: public key "Ubuntu Archive Automatic Signing Key " imported ![]() Gpg: requesting key 437D05B5 from hkp server To add these keys, run the following commands: $ sudo apt-key adv -keyserver -recv-keys 40976EAF437D05B5Įxecuting: gpg -ignore-time-conflict -no-options -no-default-keyring -homedir /tmp/tmp.QTeppiINUh -no-auto-check-trustdb -trust-model always -keyring /etc/apt/trusted.gpg -primary-keyring /etc/apt/trusted.gpg -keyserver -recv-keys 40976EAF437D05B5 Each unique key will only need to be added once. Notice that these are listed multiple times. Looking at the error above, apt is telling us that the following keys are missing: 40976EAF437D05B5 and 3B4FE6ACC0B21F32. Each key that is listed as missing needs to be added to the apt key manager so that it can authenticate the packages. Sometimes the system does not have all the keys it needs and runs into this issue. The apt packaging system has a set of trusted keys that determine whether a package can be authenticated and therefore trusted to be installed on the system. For example: $ sudo apt-get upgradeĮ: Some packages could not be authenticated If these errors aren’t fixed, apt will have problems when installing or upgrading packages. W: GPG error: trusty-updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 W: GPG error: trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 W: GPG error: trusty-security Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 Webup8 usually works, I'm using it now for java 8, but since there is a problem with it not working, all you should need to do is.There are times when running apt-get update in Ubuntu will result in error messages such as the following: $ sudo apt-get update That should work since the terminal was complaining about that package. Sudo apt purge (app name goes here without the parenthesis) It will ask for your password, then it should work. Then type in this command with the package name which you want to remove, at the end of the command and hit enter. Once you have purged the ppa, then you should purge the application, with terminal. Here is a more detailed article on all the different ways to purge a ppa There are other methods using terminal, but they require knowing the exact url address of the ppa. Once Software Sources opens, click on the tab that says "Other Software" and remove the ppa's that are giving you trouble, specifically the suru-icon-theme and whatever ppa (webupd8?) you used for the java installation. If you are using the default Unity desktop environment on Ubuntu, then search for "Software Sources". The easiest way to remove a ppa that works for me is to use the graphical interface. Or you could do the following to remove the ppa and the apps. That will have the update ignore the missing package. If you added a ppa, you might want to try purging that suru-icon-theme repository, and then the upgrade might work. It looks like an error for some extra repository that is corrupted.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |