Overview

When installing or upgrading Kerio Connect Server using an RPM file, it fails with the error:

error: unpacking of archive failed on file /opt/kerio/mailserver/<file name>;
5fce1ead: cpio: read failed - No such file or directory
error: kerio-connect-x.y.z.abcd.x86_64: install failed

Solution

• This often happens when the RPM file that was downloaded is corrupt or wasn't downloaded completely. Download the same file again from the Kerio Connect website and then perform the install.
• (For advanced users) An alternative way to download the RPM file is to use the curl command:
  curl -o ./KC9.3.0P2.rpm https://cdn.kerio.com/dwn/connect/connect-9.3.0-5349/kerio-connect-9.3.0-5349-p2-linux-x86_64.rpm
  This command shows all the information related to the file being downloaded - total file size, a percentage counter towards the total, time left, etc., ensuring that the file is downloaded completely to the local file KC9.3.0P2.rpm:
  

  user@kerio-appliance:~$ curl -o ./KC9.3.0P2.rpm https://cdn.kerio.com/dwn/connect/connect-9.3.0-5349/kerio-connect-9.3.0-5349-p2-linux-x86_64.rpm
  
  % Total % Received % Xferd Average Speed   Time     Time     Time   Current
                             Dload   Upload  Total    Spent    Left    Speed
  13 221M 13 28.7M   0   0    576k     0     0:06:32  0:00:51  0:05:41  535k

  You can get the RPM file name to download from the previous corrupt file that was downloaded and accordingly build the complete path as per the required version.