git reports "No space left on device", but df -h says there is is 2.5G available [duplicate]
Verify system inodes:
root #df -i /
If there is approaching 100% usage, try to using
xdiskusage /
To find out what is occupying the inodes.
There is, sadly enough, no way to increase the number of inodes on a file system once the file system has been created.
Except LVM, which can be expanding the number of inodes with resize2fs
Referred to:No space left on device while there is plenty of space available