Resize CentOS 7 Boot Partition: Step-by-Step Guide

To resize the boot partition in CentOS 7, you need to follow these steps:

1. Firstly, use the fdisk command to check the current partition situation and find the device name of the boot partition (usually /dev/sda1).
2. Unmount the boot partition using the umount command to ensure that no file systems are mounted on the boot partition.
3. Adjust the boot partition using the resize2fs command, for example:

resize2fs /dev/sda1 500M

500M is the new size to be adjusted, please replace it with the size you need.

1. Use the fdisk command to remove the old boot partition and create a new, larger boot partition.
2. Format the new boot partition using the mkfs command, for example:

mkfs.ext4 /dev/sda1

1. Mount a new boot partition using the mount command, for example:

mount /dev/sda1 /boot

1. Finally, update the mounting information for the new boot partition in the /etc/fstab file to ensure that the system correctly mounts the new boot partition after reboot.

After restarting the system, the boot partition size will be successfully adjusted. Be sure to backup important data when operating the partition size to prevent data loss.