How to Change the GRUB Passwd on RHEL 7
Needing to update the GRUB password for RHEL 7 VM.
It appears that in RHEL 7, we are unable to edit /boot/grub/grub.cfg and need to use something called grub2-mkconfig .
http://www.unixarena.com/2015/04/how-to-edit-the-grub-on-rhel-7.html
However I'm not sure where to go once running the grub2-mkconfig command. According to my research, it different for both RHEL5 and RHEL6.
thanks
Responses
Hello
The revised chapter Working with the GRUB 2 Boot Loader in the 7.2-Beta version of the System Administrator's Guide has improved sections on these topics.
See new section on using grubby in the 7.2-Beta version of the System Administrator's Guide: Configuring GRUB 2 Using the grubby Tool
create new password ------> [root@tecmint ~]# grub-md5-crypt
Password:
Retype password:
$1$19oD/1$NklcucLPshZVoo5LvUYEp1
created password past to --------> /boot/grub/grub.conf file or /boot/grub/menu.lst
password --md5 $1$TNUb/1$TwroGJn4eCd4xsYeGiBYq.
above the splashimage=(hd0,0)/grub/splash.xpm.gz
Guru
6827 points
Hi Sri Harsha
encapsulating your code with three tilde characters "~~~" above and below will produce...
[root@tecmint ~]# grub-md5-crypt
Password:
Retype password:
<and so forth>
Chris,
Also see this Red Hat Solution by Ryan Sawhill https://access.redhat.com/solutions/979643 (note the strong caution at the end). Additionally, here is the corresponding documentation for this at Red Hat. Later I'll include the RHEL 7 kickstart directive (that I think hasn't changed) to do this at build time.
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