How to disable plymouth in RHEL 6

Solution Verified - Updated

Environment

  • Red Hat Enterprise Linux 6

Issue

  • How can Plymouth, the graphical boot system of RHEL, be completely disabled?

Resolution

  • WARNING:
    Disabling Plymouth will prevent the population of the /var/log/boot.log file
    Instead of disabling Plymouth, try simply removing the rhgb parameter from the kernel cmdline in /boot/grub/grub.conf which will lead to the system booting straight into text mode
    Run the following command as root

    grubby --update-kernel=ALL --remove-args=rhgb

  • If it is decided that Plymouth really must be disabled:
    Add the rd_NO_PLYMOUTH parameter to the kernel cmdline in /boot/grub/grub.conf
    Run the following command as root

    grubby --update-kernel=ALL --args=rd_NO_PLYMOUTH
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