I know I can use net.ifnames=0 biosdevname=0, with grub, to disable predictable network interface names. This names the first interface as eth0 instead of enp0s3, or whatever. How do I specify this at install time using a kickstart file?
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If possible you should avoid doing this entirely. Predictable network device names have many advantages over the old system, especially for administrators.– Michael HamptonMay 19, 2015 at 0:46
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@MichaelHampton Right but currently the consistent naming is far from consistent. There's some interesting discussion here but I couldn't find my specific answer on this thread: access.redhat.com/discussions/644133– DruMay 19, 2015 at 0:49
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All of those comments applied (1) to the beta, and (2) to virtual machines. They have long since been fixed.– Michael HamptonMay 19, 2015 at 1:11
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@MichaelHampton I'm still getting enp0s3, enp0s8, enp0s9, enp0s11 using vagrant/virtual box as of CentOS 7.1 (1503).– DruMay 19, 2015 at 1:14
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Well, you can't expect VirtualBox to be consistent. It's not like that's a serious virtualization platform.– Michael HamptonMay 19, 2015 at 1:17
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1 Answer
You may use the bootloader section in the kickstart file to suppress predictable network interface names. Adding net.ifnames=0 and [if needed] biosdevname=0 to the --append should do what you're asking.
bootloader --location=mbr --append="net.ifnames=0 biosdevname=0"
Note that I've excluded the defaults rhgb quiet crashkernel=auto from the --append, it will work with or without them. You may also exclude the biosdevname package from install and use only net.ifnames=0 in the above.
bootloader --location=mbr --append="net.ifnames=0"
...
%packages --nobase
@core --nodefaults
-biosdevname
%end
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Are the
rhgb quiet crashkernel...parameters necessary or can I just do--append="net.ifnames=0"?– DruMay 19, 2015 at 0:56 -
I have not tested it without
rhgb quiet crashkernel, as they were defaults, but none of them should be required to have a booting install.– jscottMay 19, 2015 at 1:00 -
Worked with just
--append="net.ifnames=0"and-biosdevnameunder packages.– DruMay 19, 2015 at 1:24 -
@jscott rhgb provides splash screen. quiet provides you a "silent" boot, if you remove it from bootloader, boot will be more verbose. crashkernel is used by kdump, you can remove it if you have kdump disabled or uninstalled.– mvillarMay 19, 2015 at 6:27