To be honest, rather than messing about with grub for this, I would follow the 
alternative route outlines in the wiki page.

To be even more honest, I wouldn’t use that method from the wiki and would 
probably go with something like the full dev VM platform if you’re looking to 
do development work. If you’re looking for production scale, a proper mpack 
based install on an existing Ambari managed cluster (see elsewhere for docs on 
how to set one of these up with a hadoop distribution) is probably better. 


> On 14 Feb 2018, at 13:07, Helder Reia <> wrote:
> Hi all,
> I am following the installation guide for installing Metron 0.4.1 with HDP 
> 2.5 on CentOS 7 and I am having trouble after I change this line and reboot:
> # Change the line:
> GRUB_CMDLINE_LINUX="crashkernel=auto <>=cl/root 
> <>=cl/swap rhgb quiet"
> # To:
> GRUB_CMDLINE_LINUX="crashkernel=auto <>=cl/root 
> <>=cl/swap rhgb quiet transparent_hugepage=never"
> # Afterwards, run:
> grub2-mkconfig -o /boot/grub2/grub.cfg
> Basically after I reboot, the OS won't start again, gives a fatal error
> I am installing it on a VM with CentOS7, I don't know if that is the problem, 
> but I wanted to install it here first before I install on some nodes.
> Thank you all for the help,
> -- 
> Helder Reia

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