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Old 01-16-2012, 02:44 PM   #1
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Can't boot from Grub menu - RHEL5

Hi, I was 'chosen' to modify a brand new 64bit computer with recently installed RHEL5 (that worked great until I messed with it). I followed the instructions for making changes as recommened by the NSA guide. Once I made the changes it would no longer boot. I am able to get to the grub> prompt. I tried to boot using the following:
grub> root (hd0,0)
grub> kernel (hd0,0) /boot/vmlinuz.....(has more stuff such as UUID=xxxx,etc.)
grub> initrd (hd0,0)
grub> boot

Once that's done it goes into a never ending loop trying to boot, i.e. I keep seeing it loading the mouse and more. The only change I made to the grub.conf file was to add a "audit=1" at the end of the kernel line.

Please help.
Old 01-16-2012, 06:07 PM   #2
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Boot from live CD, edit grub.conf, remove audit=1 ?
Old 01-16-2012, 10:16 PM   #3
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You can try this:
grub> root (hd0,0)
          grub> kernel /vmlinuz...
          grub> initrd /initab...img
Then you modify the grub.conf.
Old 01-16-2012, 11:00 PM   #4
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Thanks for the suggestions. I tried and still couldn't get it to load, so I reinstalled the Linux and it works. I then changed the grub.conf file first (audit=1) and it loads ok, so it must have been something else I changed.
Old 01-17-2012, 02:17 AM   #5
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normally when you see " grub> " it means that the boot image can not be found
( you changed something fallowing this unnamed nsa guide )
normally reinstalling grub fixes it
boot into the install dvd and select "rescue mode"
then from that list reinstall grub

but WHAT nsa guide where you fallowing ?
did you by chance encrypt the boot partition or add a boot password to lock it from change ?

now seeing AS this is RHEL 5 you DO have a paid for red hat support contract
RHEL is not free
the full instructions for reinstalling grub are in the red hat knowledge base
search for " reinstall grub"
your RHN login username IS REQUIRED


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