Exam EX200 topic 1 question 45 discussion

Actual exam question from RedHat's EX200

Question #: 45
Topic #: 1

SIMULATION -
Upgrade the kernel, start the new kernel by default. kernel download from this address: ftp://server1.domain10.example.com/pub/update/new.kernel

Show Suggested Answer

Suggested Answer: See explanation below.
Download the new kernel file and then install it.
[root@desktop8 Desktop]# ls
kernel-2.6.32-71.7.1.el6.x86_64.rpm
kernel-firmware-2.6.32-71.7.1.el6.noarch.rpm
[root@desktop8 Desktop]# rpm -ivh kernel-*
Preparing... ###########################################
[100%]
1:kernel-firmware
########################################### [ 50%]
2:kernel
########################################### [100%]
Verify the grub.conf file, whether use the new kernel as the default boot. [root@desktop8 Desktop]# cat /boot/grub/grub.conf default=0 title Red Hat Enterprise Linux Server (2.6.32-71.7.1.el6.x86_64) root (hd0,0) kernel /vmlinuz-2.6.32-71.7.1.el6.x86_64 ro root=/dev/mapper/vol0-root rd_LVM_LV=vol0/root rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet initrd /initramfs-2.6.32-71.7.1.el6.x86_64.img

by cloudyhr at Jan. 5, 2022, 7:57 a.m.

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cloudyhr

Highly Voted 2 years, 11 months ago

#wget ftp://server1.domain10.example.com/pub/update/new.kernel find the name of the new.kerrnal #ls #rpm -ivh new.kernel list all install kernels #dnf list installed kernel #grubby --info=ALL #grubby --set-default="/boot/vmlinuz-4.18.0-348.7.1.el8_5.x86_64" #grubby --set-default-index=0

upvoted 5 times

mdtjan

2 years, 8 months ago

can we update it via yum?

upvoted 5 times

ly01

4 months, 3 weeks ago

Yes we can sudo dnf install kernel-5.14.0-427.24.1.el9_4.x86_64.rpm kernel-core-5.14.0-427.24.1.el9_4.x86_64.rpm kernel-modules-5.14.0-427.24.1.el9_4.x86_64.rpm kernel-modules-core-5.14.0-427.24.1.el9_4.x86_64.rpm uname -r sudo grubby --default-kernel sudo reboot uname -r

upvoted 1 times

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