To format the /dev/sdc1 partition with the ext4 file system, you can use the mkfs command. Please note that formatting will erase all data on the partition, so ensure you have a backup.
Here's an example command for formatting /dev/sdc1 with the ext4 file system:
sudo mkfs.ext4 /dev/sdc1
This command uses the mkfs.ext4 tool with elevated privileges (sudo) to create an ext4 file system on the specified partition (/dev/sdc1).
After running this command, you may want to mount the partition and update the /etc/fstab file to ensure it's mounted automatically on system boot:
sudo mkdir /mnt/my_partition
sudo mount /dev/sdc1 /mnt/my_partition
Additionally, to make the mount persistent across reboots, add an entry to the /etc/fstab file.