I recently tried upgrading from 2.289 to 2.303. I tried both the war file approach and the apt-get update jenkins approach since I am using turnkey. Both wound up with the same error, and I can’t get past it. I have tried making the file in question and the directory in question writeable.
Below is the error.
java.lang.IllegalArgumentException: File parameter 'file is not writable: ‘/var/lib/jenkins/jenkins.install.InstallUtil.lastExecVersion’
If anyone could please help me out, I’d really appreciate it.