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I am administrating a redhat es 3 server remotely and need to update the kernel because of some security holes in the current kernel. I have already downloaded the stock kernel from redhat and installed it. I was looking into configuring grub by setting the new kenel as the default and the old as the fallback kenel. What I am confused about is that in every example I have seen some settings are done with default 0 fallback 1 or others with default=0 fallback=1 or default=0 fallback 1. What I want to know is if the = sign is optional or required. The last thing I want to have on the remote server is to screw up the grub configuration and have it not boot at all. I will list my grub.conf file as I plan to use it and I also I am running grub .93. If anyone out there knows the correct way to do this in redhat it would be much appreciated.
title Red Hat Enterprise Linux ES (2.4.21-32.0.1.ELsmp)
kernel /vmlinuz-2.4.21-32.0.1.ELsmp ro root=/dev/md1 /dev/ht0=ide-scsi
title Red Hat Enterprise Linux ES (2.4.21-32.0.1.EL)
kernel /vmlinuz-2.4.21-32.0.1.EL ro root=/dev/md1 /dev/ht0=ide-scsi
title Red Hat Enterprise Linux ES (2.4.21-20.0.1.EL)
kernel /vmlinuz-2.4.21-20.0.1.EL ro root=/dev/md1 /dev/ht0=ide-scsi
title Red Hat Enterprise Linux ES (2.4.21-20.0.1.ELsmp)
kernel /vmlinuz-2.4.21-20.0.1.ELsmp ro root=/dev/md1 /dev/ht0=ide-scsi
I guess what I was confused about was that the documentation from grub had them without = signs while the Redhat documentation does. Anyway I found an old computer to play around with and my guess was correct the = sign can be used inplace of a space, both configuration styles work.