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Can we remove the files in /boot directory as the /boot storage reached at 89%?

Question & Answer


Question

Customer has notices  the disk usage reached to 88-89% in /boot directory in the SOAR ova env.  Can they remove the files in /boot and how?

Cause

The usgae in /boot is like
cd /boot/

ls

config-4.18.0-425.3.1.el8.x86_64     initramfs-0-rescue-800d6401762342afac74bee216142dde.img  initramfs-4.18.0-513.11.1.el8_9.x86_64.img       symvers-4.18.0-513.11.1.el8_9.x86_64.gz            vmlinuz-4.18.0-425.3.1.el8.x86_64

config-4.18.0-477.21.1.el8_8.x86_64  initramfs-4.18.0-425.3.1.el8.x86_64.img                  initramfs-4.18.0-513.11.1.el8_9.x86_64kdump.img  System.map-4.18.0-425.3.1.el8.x86_64               vmlinuz-4.18.0-477.21.1.el8_8.x86_64

config-4.18.0-513.11.1.el8_9.x86_64  initramfs-4.18.0-425.3.1.el8.x86_64kdump.img             loader                                           System.map-4.18.0-477.21.1.el8_8.x86_64            vmlinuz-4.18.0-513.11.1.el8_9.x86_64

efi                                  initramfs-4.18.0-477.21.1.el8_8.x86_64.img               symvers-4.18.0-425.3.1.el8.x86_64.gz             System.map-4.18.0-513.11.1.el8_9.x86_64

grub2                                initramfs-4.18.0-477.21.1.el8_8.x86_64kdump.img          symvers-4.18.0-477.21.1.el8_8.x86_64.gz          vmlinuz-0-rescue-800d6401762342afac74bee216142dde

Answer

The space in /boot can be freed up by removing kernels -- BUT NOT MANUALLY.

Further more, /boot size cannot be increased. The OS settings keep only 3 kernels, and from the storge usage details, via df it already have 3 kernels at the moment. This means the next kernel update (from security updates), the oldest would be removed. This means no noticeable disk usage in /boot.

So there will no concern with the /boot disk usage even it is used 88%, the system will managed well for next upgrade from now on.

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Document Information

Modified date:
21 January 2025

UID

ibm17181237

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