core-storagedisk-utilityhard drivestartup
The storage on my start up disk is being consumed by some kind of core files labeled as cores:1234 (numerical digits change). I downloaded OmniSweeper, which helped me locate these files and aware that each one is the size of >300mb. How do I disable this?
It is taking up space by the minute, literally. Screen shot provided below.
Thanks,
DG
If this happens to you... your disk is probably hosed. Find your backups.
(I'm still interested if someone does have a solution, but given the lack of answers I don't think it's likely.)
The live expansion only works from a lower numbered partition to expand to a larger one.
If you get the BSD disk number from terminal: diskutil list or the Info button when you select it is disk utility.
assuming you have data on a disk numbered 2 and the free space is 1, you would need to boot to recovery HD (or another OS and perform these steps).
Since this takes several reboots and a copy, if you have a backup it might be faster to just erase the Mac and restore from the backup. I would make a backup before you start just in case - so you won't save any time doing the live shuffle and live restore. If you don't have a backup - I would do that first unless you're comfortable and have done this many times and can spend the time to start new without a backup if anything fails or errors out.
Best Answer
They are coredumps, they are the result of a unix program crashing and then getting it's core dumped, which is basically a file containg what the program was doing when it crashed (memory state and CPU state).
If you have that many, it might be a symptom of a bigger underlying cause which you can check by inspecting the logs of you system using the Console app. To find out what binary (application program) the core belongs to, you can use the Terminal:
In the end, however, unless you are a software developer, there is no point in keeping those core dump files, you can simply delete all of them.