Note the kernels in /boot & /lib/modules
ls -l /lib/modules
cd /boot ls -l uname -r Regarding Kernels look at: 1. What is in grub 2. What is in grub.cfg 3. What is in menu.lst 4. What is installed - short list 5. What is installed - long list 6. What kernels are available 7. Check the intramfs.---.img kernel file ls -1 /boot/vmlinuz-* |egrep -v rescue egrep ^menu /boot/grub2/grub.cfg |cut -d\' -f2 |cut -d\( -f2 |cut -d\) -f1 cat /boot/grub/menu.lst |egrep ^title rpm -qa |egrep kernel |cut -d\- -f3,4 |egrep ^[0-9] |sort -u rpm -qa |egrep kernel |sort -V For a new kernel run this ... enables easier access to grub menu at boot time grubby --info=ALL | grep ^kernel | sort -u grubby --info /boot/<vmlinux-kenrel release> grubby --remove-args="rhgb quiet" --update-kernel /boot/<vmlinux-kenrel release> grubby --info /boot/<vmlinux-kenrel release> grubby --info /boot/vmlinuz-4.14.35-1902.302.2.el7uek.x86_64 grubby --remove-args="rhgb quiet" --update-kernel /boot/vmlinuz-4.14.35-1902.302.2.el7uek.x86_64 grubby --info /boot/vmlinuz-4.14.35-1902.302.2.el7uek.x86_64 yum search --showduplicates kernel-uek lsinitrd /boot/initramfs-<kernal version><OS version kernel series>.x86_64.img | grep -i vm lsinitrd /boot/initramfs-4.1.12-124.32.3.el7uek.x86_64.img | grep -i vm
The remote manage 'tool' ansible is handy for working on servers ....
This string run by ansible gives a nice report on kernels. ansible all -m raw -a "echo \"###########################\";cat /etc/oracle-release |awk '{print $5}';echo \"Kernels in BOOT\"; ls -1 /boot/vmlinuz-* |egrep -v rescue;echo \" \";echo \"Kernels INSTALLED\";rpm -qa |egrep ^kernel |sed \"s/-headers//g\" |sed \"s/-debug//g\" |sed \"s/-firmware//g\" |sed \"s/-tools//g\" |sed \"s/-libs//g\" |sort -u" This is a faster but dangerous way to get remove old kernels cd /boot uname -r # this needs to be the newest kernel, if not reboot and get newest runing rpm -qa |egrep kernel |sort -V |awk '{print "yum remove "$1}' > /tmp/remove-kernels ; vi /tmp/remove-kernels Remove the kernels NOT to be removed. Update the boot/grub*/config file ALSO This will get some automagically package-cleanup --oldkernels --count=2 This will give a list that can then be done with manual yum purge ... rpm -qa kernel\* |sort -V Changes may need to done for the particular server at: https://login.oracle.com/oaam_server/login.do Update GRUB ### If /boot/grub cd grub vi menu.list remove the 4 lines for the kernel(s) removed ### Else if grub2 /usr/sbin/grub2-mkconfig > /boot/grub2/grub.cfg VMTools to open-vm-tools < path to >/vmware-uninstall-tools.pl yum install open-vm-tools.x86_64 systemctl enable vmtoolsd.service systemctl start vmtoolsd.service systemctl status vmtoolsd.service Check that the open-vm-tools are running (on he console it will rebor Guest Run)... /usr/bin/vmtoolsd -v
/etc/yum.conf
[main]
cachedir=/var/cache/yum/$basearch/$releasever
keepcache=0
debuglevel=2
logfile=/var/log/yum.log
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1
# Note: yum-RHN-plugin doesn't honor this.
metadata_expire=1h
# Default.
installonly_limit=3
# This is the default, if you make this bigger yum won't see if the metadata
# is newer on the remote and so you'll "gain" the bandwidth of not having to
# download the new metadata and "pay" for it by yum not having correct
# information.
# It is esp. important, to have correct metadata, for distributions like
# Fedora which don't keep old packages around. If you don't like this checking
# interupting your command line usage, it's much better to have something
# manually check the metadata once an hour (yum-updatesd will do this).
# metadata_expire=90m
# PUT YOUR REPOS HERE OR IN separate files named file.repo
# in /etc/yum.repos.d
### exclude=kernel.x86_64, kernel
/etc/default/grub
GRUB_TIMEOUT=10
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX=" rd.lvm.lv=ol_rhel7lamp/root rd.lvm.lv=ol_rhel7lamp/swap"
GRUB_DISABLE_RECOVERY="true"
egrep menuentry /boot/grub/menu.lst |awk '{print $1 " "$4" "$5}' |egrep -v memtest |egrep Linux |sed "s/'//g"
U B U N T U
cd /boot
uname -r
ls -l
dpkg -l |egrep kernel |egrep ii
dpkg -l |egrep kernel |egrep ii |egrep kernel | egrep <kernel version>
dpkg -l |egrep kernel |egrep ii |egrep kernel | egrep <kernel version> | awk {'print $2 " \\"}' >rm-<kernel version>
egrep menuentry /boot/grub/grub.cfg |awk '{print $1 " "$4" "$5}' |egrep -v memtest |egrep Linux |sed "s/'//g"
## apt remove
/usr/sbin/update-grub
egrep menuentry /boot/grub/grub.cfg |awk '{print $1 " "$4" "$5}' |egrep -v memtest |egrep Linux |sed "s/'//g"
After a change to /etc/default/grub ...
/usr/sbin/update-grub