Installation of Memtest+ RAM memory test tool on Redhat 7 Linux Memtest is a quite handy tool when troubleshooting hardware problem and specifically problems related to Random Access Memory (RAM). After installation the memtest+ tool will become available among other boot options. To install memtest+ on RHEL 7 Linux server execute the following linux command:
# yum install memtest86+ ... Running transaction Installing : memtest86+-4.20-12.el7.x86_64 1/1 Verifying : memtest86+-4.20-12.el7.x86_64 1/1 Installed: memtest86+.x86_64 0:4.20-12.el7
Next, we will configure memtest86:
# memtest-setup grub2 detected, installing template... grub 2 template installed. Do not forget to regenerate your grub.cfg by: # grub2-mkconfig -o /boot/grub2/grub.cfg Setup complete.
As a last step and as per the above setup instructions above we execute:
# grub2-mkconfig -o /boot/grub2/grub.cfg ... Found memtest image: /boot/elf-memtest86+-4.20 done
This will update GRUB boot options to include Memtest+ tool. Next time you will reboot your RHEL 7 server GRUB will provide you with Memtest+ boot menu option: 
