Today on an internal, legacy centos 6.10 server I run
yum update
It downloaded and installed, without errors, these packages:
kernel-headers-2.6.32-754.15.3.el6.x86_64 Tue 25 Jun 2019 09:46:52 AM CEST
microcode_ctl-1.17-33.13.el6_10.x86_64 Tue 25 Jun 2019 09:46:51 AM CEST
kernel-2.6.32-754.15.3.el6.x86_64 Tue 25 Jun 2019 09:46:48 AM CEST
bind-utils-9.8.2-0.68.rc1.el6_10.3.x86_64 Tue 25 Jun 2019 09:46:40 AM CEST
bind-libs-9.8.2-0.68.rc1.el6_10.3.x86_64 Tue 25 Jun 2019 09:46:39 AM CEST
kernel-firmware-2.6.32-754.15.3.el6.noarch Tue 25 Jun 2019 09:46:38 AM CEST
python-libs-2.6.6-68.el6_10.x86_64 Tue 25 Jun 2019 09:46:32 AM CEST
python-2.6.6-68.el6_10.x86_64 Tue 25 Jun 2019 09:46:29 AM CEST
I check /etc/grub.conf and it lists as first entry the new kernel:
title CentOS (2.6.32-754.15.3.el6.x86_64)
I reboot the server and...
uname -a
Linux goofy.local 2.6.32-754.14.2.el6.x86_64
In the last months I see other kernel 2.6.* updates, they were fine.
Why isn't the new kernel running? How can I troubleshoot this?
These are the new files in /boot
-rw-r--r-- 1 root root 106K 2019-06-18 18:29 config-2.6.32-754.15.3.el6.x86_64
-rw------- 1 root root 18M 2019-06-25 09:47 initramfs-2.6.32-754.15.3.el6.x86_64.img
-rw-r--r-- 1 root root 212K 2019-06-18 18:29 symvers-2.6.32-754.15.3.el6.x86_64.gz
-rw-r--r-- 1 root root 2.6M 2019-06-18 18:29 System.map-2.6.32-754.15.3.el6.x86_64
-rwxr-xr-x 1 root root 4.2M 2019-06-18 18:29 vmlinuz-2.6.32-754.15.3.el6.x86_64
-rw-r--r-- 1 root root 171 2019-06-18 18:29 .vmlinuz-2.6.32-754.15.3.el6.x86_64.hmac
grubby --default-kernel
/boot/vmlinuz-2.6.32-754.15.3.el6.x86_64