you may need to reindex the hard drive so that it recalculates what's on it and that may stop the message from popping up. the following article tells how to do this using spotlight:
Hello, I've been having the exact same issue. 500 GB HD, more than 300 empty. I have checked this with OmniDiskSweeper, which gives me the same number.
I have copied the line you gave in Terminal, which gave me the numer 79 as a result. I have no idea what to do next.
Also, while Terminal was busy, it repeatedly showed me the message "Low Disk Space. Terminal has detected that the system disk is running low on swap space. Scrollback buffers may automatically be trimmed to conserve memory. OK"
Help would be much appreciated.
Same issue here. I have a 500 GB HD, with about 127 GB used, with 4 GB of RAM. Running 10.9.1
Today, I suddenly started to get this error message: "Your startup disk is almost full. You need to make more space available on your startup disk by deleting files."
I've Googled for solutions and tried various fixes. Examples:
After emptying the trash and fixing permissions (and rebooting) I downloaded and ran Omnisweep (from root using Terminal). No huge file identified. But then I saw a new message: "Terminal has detected that the system disk is running low on swap space. Scrollback buffers may automatically be trimmed to conserve memory."
I also found and deleted a "recovered messages" folder in Mail (and rebooted).
Activity Monitor says: Physical Memory: 4GB, Memory Msed: 3.99 GB, Virtual Memory: 4.94 GB, Swap Used: 0 bytes. That Terminal command mentioned above gave me the number 214.
Oh, I also deleted user caches.
No joy—still getting the error.
Even can't open safe mode I tried thousand times.
I have MBP late 2011 13"
The issue now is the active disc that contains OS is full with no single byte free and doesn't mount or load OS to computer run and always a grey bar appears upon starting the PC.
I tried to increase Macintosh HD space by partition but it says you can not change because the disc is locked. When tried to unlock disc from disc utility and than startup disc the PC stands still or hangs up.
I don't have Mac OS disc or any apple shop in me area.
Please help me as soon as possible
Can't go to safe mode
Can't unlock startup disc
Can't modify oration , says disc is locked