How to resize the /boot partition? Solution Verified - Updated December 2 2025 at 8:16 PM - English In this step-by-step tutorial, learn How to Increase /boot Partition space in RHEL and CentOS 7/8 Linux VM. Creating a Partition | Storage Administration Guide | Red Hat Enterprise Linux | 7 | Red Hat DocumentationBefore creating a partition, boot into rescue mode, or unmount any partitions on If you have 2 partitions in sda (boot and LVM) either you have adjacent free space and you resize the /boot partition or you will need to shrink the Learn how to resize a partition using the parted utility in Red Hat Enterprise Linux (RHEL). more Resizing the boot partition in linux Last weeks I was confronted with resizing the boot partitioning issues on my server, I want to explain to you how to resize boot partition in How to migrate the data from /boot to some other higher storage capacity first partition of another disk and make it bootable? A Red Hat subscription The /boot partition basically contains pairs of kernel (about 5 MiB) and initial RAM disk (about 50 MiB) and some bootloader configuration. 2. 7-Unmount /boot 8- Check the start and end blocks of /dev/sda1. Then Resize primary partition shrink and extend non lvm root, boot and other primary partition, change size of partition using unallocated free If there is no enough space in /boot, and there is no space between /boot partition and the other partition. Learn how to safely resize CentOS 7 boot partition using fdisk and resize2fs commands. Then reduce the existing volume group 6- Delete the partition /dev/sda2. Resizing partitions is Before resizing a partition, back up the data stored on the file system and test the procedure, as the only way to change a partition size using fdisk is by deleting and recreating the partition. Start parted, where /dev/sda is the device on which to This video shows you step by step to extend Linux 7/redhat7/ CentOS7 boot partition. You need around 20 kernels to fill it. Unfortunately, since the partitions in the boot virtual block device are already in use, those Do not attempt to resize a partition on a device that is in use. I have guided the linux file system configuration of /boot partition. A /boot partition is also necessary for software Issue t followed by 2 followed by 8e to toggle the partition type of your new second partition to 8e (Linux LVM). Refer to the following sections of our Red Hat Enterprise Linux (RHEL) documentation on how to resize a partition. This video shows you step by step to extend Linux 7/redhat7/ CentOS7 boot partition. Before resizing a partition, boot into rescue mode (or unmount any partitions on the device and turn off any swap space on the Chapter 3. Quick tutorial with examples. Disk partitions | Managing storage devices | Red Hat Enterprise Linux | 9 | Red Hat DocumentationAs the previous diagram shows, the 13. Expand the second partition to fill the remaining space. Adm On a CentOS 7 server I'm almost out of space on the /boot partition and I need to increase its space. How to recreate a new /boot partition? Need to extend partition size and file system size without destroying any existing data How do you extend an existing non-lvm partition without Before resizing a partition, boot into rescue mode (or unmount any partitions on the device and turn off any swap space on the device). If you want to attempt to resize the partition, you're going to want to boot from a CD into rescue mode, not mount /dev/sda, use vgscan to look for your LVM partitions, resize the root partition It is necessary to use an internal hard drive for partition creation with problematic RAID cards. Issue p to review your Increase the size of the first (boot) partition, from approximately 100MB to 500MB. Increase the total disk size from 8GB to 16GB. It is followed by a logical volume, as shown below: df -h # df -h Filesystem How to extend a partition using the growpart utility online? Can I extend the partition which is in-between the two partitions? - A special Case Both Xen and KVM support online resize of the virtual block devices that the virtual machines use. . I have guided the linux file system configuration of /boot partition.
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