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Jonathan Mergy

GRUB Linux Boot Large Volumes Issue Fix

RedHat Linux / RHEL 5 and previous versions have a problem with large volumes because of a boot limitation with GRUB .9x (now referred to as ‘GRUB Legacy’ which does not allow booting to volumes larger than roughly 2 terabytes. This is an issue because when you get servers with storage like a Dell PowerEdge 2950 and you load it up with a bunch of 750 gig drives and RAID 5 them, you are into the 3-4 terabyte range.

GRUB does not like dealing with such large volumes. But, rather than taking one of the drives out of the RAID and using that as boot volume, you can do a couple of other things. You can boot with an external hard drive, but that gets pretty messy.

What works well, is to get a 1 gig or so USB memory stick and during the RHEL install, put the


mount on it and leave root and the other mounts on the large RAID. GRUB will install on the USB and and long as you have that in at boot, you will be good until RH can get off their butts and bring the GRUB 2 fully into the mix.

Fred Mergy webpage updated

Earlier this year, I created a webpage to record information and recordings of my late father, Fred Mergy, since there was really no information of him around the internet. Well, now there is. Recent changes to the page include more recordings and audio format changes to the more generally acceptable MP3 format to make things more compatible and shrink the download times a bit. Please check it out if you haven’t yet.

New Mergy.Org Public Format is actually getting some public content now with the addition of my wordpress publishing system. My hope is to make this a resource and give back to the net in a way to thank all of the others I have found great information from over the many years on technical hacks and workarounds.