Centos 7 Show Startup Messages and change Console Screen Resolution

Centos 7 Show Startup Messages and change Console Screen Resolution

# vi /etc/default/grub

Change line below minus the rhgb quiet at the end

#GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap crashkernel=auto rhgb quiet"
GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap crashkernel=auto"

Also add the following lines to end of file to change to 1024x768

GRUB_CMDLINE_LINUX_DEFAULT="video=1024x768"
GRUB_GFXMODE=1024x768
GRUB_GFXPAYLOAD_LINUX=keep

Now update /boot/grub2/grub.cfg for next boot

# grub2-mkconfig -o /boot/grub2/grub.cfg

# grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg