How to increase inode limits?

Increasing inode limits typically involves reformatting the filesystem with a higher inode count, as inodes are allocated when the filesystem is created. Here are the general steps to increase inode limits:

Backup Data: Before making any changes, ensure that you back up all important data on the filesystem.
Unmount the Filesystem: You need to unmount the filesystem to make changes. For example:
```
umount /dev/sdX1
```
Reformat the Filesystem: Use a command like mkfs to create a new filesystem with a specified number of inodes. You can use the -N option to set the number of inodes. For example, to create an ext4 filesystem:
```
mkfs.ext4 -N [number_of_inodes] /dev/sdX1
```
Alternatively, you can specify the bytes per inode using the -i option:
```
mkfs.ext4 -i [bytes_per_inode] /dev/sdX1
```
Mount the Filesystem: After reformatting, mount the filesystem again:
```
mount /dev/sdX1 /mount/point
```
Restore Data: Finally, restore your data from the backup.

Note: Reformatting a filesystem will erase all data on it, so ensure you have a complete backup before proceeding. Additionally, consider using filesystems that dynamically allocate inodes, such as XFS or Btrfs, which can help avoid inode exhaustion in the future.