I have installed this RPM during the initial setup but now I want to use the
serial port for controlling my UPS (NUT).
I have removed it with rpm -e but with dmesg I still see this :
Kernel command line: ro root=/dev/VolGroup00/LogVol00 ide=nodma rhgb quiet
iommu=memaper=3 swiotlb=65536 console=tty0
I have included my /boot/grub.conf but there is no reference to the console
there. How can I get rid of this kernel option?


# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00
#          initrd /initrd-version.img
#boot=/dev/sda1
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Scientific Linux SL (2.6.9-34.0.1.ELsmp)
        root (hd0,0)
        kernel /vmlinuz-2.6.9-34.0.1.ELsmp ro root=/dev/VolGroup00/LogVol00
ide=nodma rhgb quiet iommu=memaper=3 swiotlb=65536
        initrd /initrd-2.6.9-34.0.1.ELsmp.img
title Scientific Linux SL (2.6.9-34.0.1.EL)
        root (hd0,0)
        kernel /vmlinuz-2.6.9-34.0.1.EL ro root=/dev/VolGroup00/LogVol00
ide=nodma rhgb quiet
        initrd /initrd-2.6.9-34.0.1.EL.img