10

I am wondering about the pie chart in the properties basic tab. I can see blue is used space and white free space but what does the gray part mean. I have been searching with no luck. Thanks in advanced!

Properties Window

10
+50

By default the file system reserves 5% for the root user, which is what you're seeing in gray. You can change this using tune2fs. For example, to change the reserved space to 1% you would use:

sudo tune2fs -m 1 /dev/sdb1

where /dev/sdb1 is the location of your drive.

I have tested this successfully on Ubuntu 13.10

|improve this answer|||||
  • 1
    Right, that was it, thanks! Anyway I was worried to reduce the reserved space as you suggested but after some digging I found it is fairly safe to do it since it is not the system drive. And while Ext3 is prone to fragmentation and bad performance above 95% usage, Ext4's multi-block allocator is much more fragmentation resistant, as mentioned by Linux filesystem developer and guru Theodore Ts'o: Re: Reserved block count for Large Filesystem – SuperMau Nov 23 '13 at 6:57

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.