Linux space is insufficient. What should I do? Disk Requirements: At least 11 MB more space needed on the/filesystem., 11 mbfilesystem

Linux space is insufficient. What should I do? Disk Requirements: At least 11 MB more space needed on the/filesystem., 11 mbfilesystem
Disk Requirements: At least 11 MB more space needed on the/filesystem.
Linux space is insufficient. What should I do?
1> View the space: df-h
2> view the current kernel: uname-r
3> Search for kernel rpm-qa | grep kernel
4> Delete unnecessary kernels
Su-c 'yum remove kernel-devel-2.6.32-431.20.3.el6.i686'
5> Delete System log rm-rf/var/log /*
6> Delete rm-rf/usr/local/src. Note that the file you installed may exist.
How can I clear the bootale disk if the disk space is insufficient when installing the developer tool in yum?

The downloaded data of yum is usually stored in/var, And the decompressed data is stored in/tmp. However, if the/boot space is insufficient, it is usually because the system has installed multiple versions of the kernel, and the old kernel has been deleted to release space.
 
Linux partition not enough free space on disk

/Is the most important part of the root partition.
You want to allocate space above 4 GB