java.io.IOException: Permission denied at java.io.UnixFileSystem.createFileExclusively(Native Method) at java.io.File.createTempFile(File.java:2024) at hudson.util.AtomicFileWriter.<init>(AtomicFileWriter.java:142) Caused: java.io.IOException: Failed to create a temporary file in /var/jenkins_home at hudson.util.AtomicFileWriter.<init>(AtomicFileWriter.java:144) at hudson.util.AtomicFileWriter.<init>(AtomicFileWriter.java:109) at hudson.util.AtomicFileWriter.<init>(AtomicFileWriter.java:84) at hudson.util.AtomicFileWriter.<init>(AtomicFileWriter.java:74) at hudson.XmlFile.write(XmlFile.java:189) at jenkins.model.Jenkins.save(Jenkins.java:3382) at jenkins.model.Jenkins.<init>(Jenkins.java:985) at hudson.model.Hudson.<init>(Hudson.java:85) at hudson.model.Hudson.<init>(Hudson.java:81) at hudson.WebAppMain$3.run(WebAppMain.java:262) Caused: hudson.util.HudsonFailedToLoad at hudson.WebAppMain$3.run(WebAppMain.java:279)