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8.4. Removed Boot Options

The following options are removed. They were present in previous releases of Fedora, but they cannot be used anymore.
asknetwork
The installation program's initramfs is now completely non-interactive, which means that this option are not available anymore. Use ip= to configure network settings.
serial
This option forced Anaconda to use the /dev/ttyS0 console as the output. Use the console=/dev/ttyS0 (or similar) instead.
updates=
Specified the location of updates for the installation program. Use the inst.updates= option instead.
essid=, wepkey=, wpakey=
Configured wireless network access. Network configuration is now being handled by dracut, which does not support wireless networking, rendering these options useless.
ethtool=
Used in the past to configure additional low-level network settings. All network settings are now handled by the ip= option.
gdb
Allowed you to debug the loader. Use rd.debug instead.
mediacheck
Verified the installation media before starting the installation. Replaced with the rd.live.check option.
ks=floppy
Specified a floppy disk as the Kickstart file source. Floppy drives are not supported anymore.
display=
Configured a remote display. Replaced with the inst.vnc option.
utf8
Added UTF8 support when installing in text mode. UTF8 support now works automatically.
noipv6
Used to disable IPv6 support in the installation program. IPv6 is now built into the kernel so the driver cannot be blacklisted; however, it is possible to disable IPv6 using the ipv6.disable option.
upgradeany
Upgrades are done in a different way in current Fedora releases. For more information about upgrading your system, see Chapter 12, Upgrading Your Current System.
vlanid=
Used to configure Virtual LAN (802.1q tag) devices. Use the vlan= option instead.
inst.dnf
Used to enable DNF to handle package installation and dependency resolution in Fedora 21. DNF is now used by default and this option has been replaced with inst.nodnf, which reverts back to Yum.