DISKWARN blocks Mount Point /boot currently use 85.1%

Hi, I received multiple Disk usage warnings about the Mount Point "/boot" partition being almost full 85.1% Percent Used! I have checked the server to see if the kernel installations are causing this but I can confirm there are only 2 versions of the kernel installed ----------------------------- [root@srv1 boot]# rpm -q kernel kernel-4.18.0-348.2.1.el8_5.x86_64 kernel-4.18.0-348.7.1.el8_5.x86_64 ----------------------------- and there are multiple IMG files inside /boot not sure if these img files causing DISKWARN?:

[root@srv1 ~]# cd /boot
[root@srv1 boot]# ls -la
total 384792
dr-xr-xr-x.  6 root root     1024 Jan 20 09:05 .
dr-xr-xr-x. 20 root root     4096 Jan 21 15:50 ..
-rw-r--r--.  1 root root   193933 Nov 15 15:37 config-4.18.0-348.2.1.el8_5.x86_64
-rw-r--r--.  1 root root   193933 Dec 21 20:17 config-4.18.0-348.7.1.el8_5.x86_64
drwxr-xr-x.  3 root root     1024 Jan  1  1970 efi
drwx------.  4 root root     1024 Jan  9 12:58 grub2
-rw-------.  1 root root 83359124 Nov 29 12:23 initramfs-0-rescue-5cd97a44bbe04c08a5e1e6070ead0d48.img
-rw-------.  1 root root 87363817 Jan 20 09:05 initramfs-0-rescue-a662a72b3d284ac282af283cff6978a6.img
-rw-------.  1 root root 57053587 Jan  9 12:58 initramfs-4.18.0-348.2.1.el8_5.x86_64.img
-rw-------.  1 root root 28587008 Jan  9 13:28 initramfs-4.18.0-348.2.1.el8_5.x86_64kdump.img
-rw-------.  1 root root 86272301 Jan 20 09:05 initramfs-4.18.0-348.7.1.el8_5.x86_64.img
drwxr-xr-x.  3 root root     1024 Nov 29 12:22 loader
drwx------.  2 root root    12288 Jan  9 12:57 lost+found
lrwxrwxrwx.  1 root root       51 Nov 29 12:22 symvers-4.18.0-348.2.1.el8_5.x86_64.gz -> /lib/modules/4.18.0-348.2.1.el8_5.x86_64/symvers.gz
lrwxrwxrwx.  1 root root       51 Jan 20 09:05 symvers-4.18.0-348.7.1.el8_5.x86_64.gz -> /lib/modules/4.18.0-348.7.1.el8_5.x86_64/symvers.gz
-rw-------.  1 root root  4259443 Nov 15 15:37 System.map-4.18.0-348.2.1.el8_5.x86_64
-rw-------.  1 root root  4260003 Dec 21 20:17 System.map-4.18.0-348.7.1.el8_5.x86_64
-rwxr-xr-x.  1 root root 10215304 Nov 29 12:22 vmlinuz-0-rescue-5cd97a44bbe04c08a5e1e6070ead0d48
-rwxr-xr-x.  1 root root 10223496 Jan 20 09:05 vmlinuz-0-rescue-a662a72b3d284ac282af283cff6978a6
-rwxr-xr-x.  1 root root 10215304 Nov 15 15:37 vmlinuz-4.18.0-348.2.1.el8_5.x86_64
-rw-r--r--.  1 root root      172 Nov 15 15:36 .vmlinuz-4.18.0-348.2.1.el8_5.x86_64.hmac
-rwxr-xr-x.  1 root root 10223496 Dec 21 20:17 vmlinuz-4.18.0-348.7.1.el8_5.x86_64
-rw-r--r--.  1 root root      172 Dec 21 20:17 .vmlinuz-4.18.0-348.7.1.el8_5.x86_64.hmac

is these files initramfs-* can be safely removed with rm manualy? your help is greatly appreciated.

andrew.n

January 21, 2022 18:35

You can remove the unused kernels like this:

-1

Rawand Sae

January 22, 2022 04:22

January 24, 2022 13:55

you just killed your rescue kernel....it was not a wise step :( lets hope you won't need it in the future.

cPRex Jurassic Moderator

January 24, 2022 16:55

It's not abnormal for /boot to run with high disk usage, and that isn't something to worry about unless you are experiencing issues such as failed updates. In the future, if the server is created with custom partitions for areas like /boot you may want to make that area larger.

January 25, 2022 08:23

I had no other choice, I believe you can re-generate the rescue kernel image for the current kernel with the command! dnf reinstall kernel-core

yes, I had issues with a kernel update, due to /boot high disk usage the system was unable to update running_version and I kept getting the "You must reboot the server to apply kernel updates" Warning.

DISKWARN blocks Mount Point /boot currently use 85.1%

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