Why does RHEL7 anaconda not write /etc/resolv.conf file if multiple DNS ip addresses are provided on command line?

Solution Verified - Updated -

Issue

  • If one installs Red Hat Enterprise Linux 7, with the following command line options, the file /etc/resolv.conf is not written appropriately.
> vmlinuz  initrd=initrd.img inst.stage2=hd:LABEL=RHEL-7.0\x20Server.x86_64 linux inst.ks=ftp://192.168.122.254/ks.cfg ip=192.168.122.200 netmask=255.255.255.0 gateway=192.168.122.1 dns=192.168.122.1,4.2.2.2 bootdev=eth0
  • The contents of /etc/resolv.conf file is as follows after build.
[root@newrhel7 anaconda]# cat /etc/resolv.conf 
nameserver 10.68.5.26,10.38.5.26
  • This is syntactically wrong. If the Kickstart URL is mentioned with FQDN, the installation fails with an error that it can not resolve the name to IP.

Environment

  • Red Hat Enterprise Linux 7

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