My MineOS server has been chugging along nicely for well over 18 months, hosting about a dozen different worlds in that time. I was adding a new world to my server today when I found out the drive was almost full. I ended up removing 230+ archives from one world and deleting four other worlds that were no longer in use.
After creating the new world which I was originally planning to do, I found out that none of my worlds would start – including the one that has been running for over a year! I removed the new world, updated all my packages (including kernel and OpenJDK 7 upgrades), and rebooted. Still no luck. I tried using the current profile (‘vanilla186’) on my long-running world (‘Creative’), and when that didn’t work, I made a new profile (‘vanilla187’) and still had no luck in starting any world.
[00:30:15] [main/FATAL]: Failed to start the minecraft server
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:213) ~[minecraft_server.1.8.7.jar:?]
at com.google.common.collect.Lists$ReverseList.<init>(Lists.java:767) ~[minecraft_server.1.8.7.jar:?]
at com.google.common.collect.Lists.reverse(Lists.java:759) ~[minecraft_server.1.8.7.jar:?]
at lt.b(SourceFile:156) ~[minecraft_server.1.8.7.jar:?]
at lt.<init>(SourceFile:43) ~[minecraft_server.1.8.7.jar:?]
at net.minecraft.server.MinecraftServer.<init>(SourceFile:168) ~[minecraft_server.1.8.7.jar:?]
at ko.<init>(SourceFile:53) ~[minecraft_server.1.8.7.jar:?]
at net.minecraft.server.MinecraftServer.main(SourceFile:689) [minecraft_server.1.8.7.jar:?]
Needless to say, my server is now as useful as a paperweight, but I don’t know enough about Java/OpenJDK to understand these errors. Any assistance would be greatly appreciated!
I’m not trying to be dismissive with my answers, because after typing the original post and comment, I decided to make yet another new world. This time, it worked – but the old worlds still wouldn’t load! So I decided to back up my “Creative” world and recreate it with a new server and the old files. It worked until I copied the old files back into the folder. So I decided to try just a few files here and there to see what was causing the issue.
When I got around to copying the server.properties file without any problems loading the world, I was baffled. I had now added all the same files from the old world - except the actual world files in their folder - and it was now working again. I can’t assume the world data would cause Java errors, so I hesitantly replaced the world files with my backups. To my surprise, it started up without any errors.
I don’t know what happened or why MineOS decided to not start any of my worlds for half a day, but I avoided complete backups and OS reinstall by just trying the “replace one thing at a time” method. Regardless of how it was fixed, I appreciate the assistance with my issue.