Resize the file system in Linux: resize2fs

resize2fs is a command used to expand or shrink the size of an unmounted "ext2/ext3/ext4" file system. We don't use it very often. Generally, VPS hosts either need to mount more files themselves or need to enlarge or shrink unmounted files themselves. If you happen to encounter one, record it. It is suitable for novices, but veterans should avoid it.

As shown in the figure above, the disk root directory has only 1.8GB of space, but the capacity of /dev/vda is correct and does not need to be mounted separately. At this time, we can use the resize2fs command to increase the size of the file system.

After the command is executed, we can see that the space capacity is normal. Here is how to use the command.

Syntax

resize2fs [parameters] [options]

Common parameters

-d turns on debugging features

-p Print a progress bar showing the percentage completed

-f Force resize operation, overriding safety check operation

-F Flush the file system device buffer before starting the resize