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Bug 1511190 - After grub2-mknetdir, grub.cfg search was in different location that documentation described.
Summary: After grub2-mknetdir, grub.cfg search was in different location that document...
Keywords:
Status: NEW
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: grub2
Version: 7.4
Hardware: ppc64
OS: Linux
unspecified
medium
Target Milestone: rc
: ---
Assignee: Peter Jones
QA Contact: Release Test Team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-11-08 20:52 UTC by Curtis Taylor
Modified: 2018-11-02 02:03 UTC (History)
0 users

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Description Curtis Taylor 2017-11-08 20:52:28 UTC
Description of problem:
Location of grub.cfg for netboot appears to be a moving target and doesn't match RHEL installation guide.  

Version-Release number of selected component (if applicable):
grub2-tools-extra-2.02-0.65.el7_4.2.ppc64le
grub2-ppc64le-modules-2.02-0.65.el7_4.2.noarch

How reproducible:
On a powerpc system follow https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/installation_guide/chap-installation-server-setup.  

Steps to Reproduce:
1. grub2-mknetdir --net-directory /tftpboot
2. point dhcp filename at "/boot/grub2/powerpc-ieee1275/core.elf"
3. put the grub.cfg in /tftpboot/boot/grub2/grub.cfg  (Like documentation described.)

Actual results:
After loading core.elf, normal.mod, and a few other *.mod, tcpdump shows attempts are made to load /boot/grub2/powerpc-ieee1275/grub.cfg* but /boot/grub2/ is never searched.

Expected results:
Documentation should specify grub.cfg location that is used with grub2-mknetdir boot processes and grub.cfg location should remain static between grub versions.

Additional info:
We have old /boot/grub2, possibly from RHEL7.2, where it searched for grub.cfg in tftpd's root directory (/tftpboot/ in my case... the tcpdump only shows /grub.cfg* of course.)  /tfpboot now has the grub.cfg files in /tftpboot, /tftpboot/boot/grub2, and /tftpboot/boot/grub2/powerpc-ieee1275.  (This is getting ridiculous.)


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