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Old 09-30-2003, 12:22 PM   #1
Registered: Sep 2003
Location: New York, NY
Distribution: Red Hat 9
Posts: 33

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GRUB question - removing old kernel ?

I've got a dual-boot RH9/WinXP laptop that I recently set up (my first Linux install ever). I used the install CDs that came with the RH9 Bible which didn't contain the latest of the first things that came up after installation was a message that told me to update the kernel to 2.4.20, so I did. Now, when the GRUB screen comes up, and I choose which OS to boot into, I get 3 choices: WinXP, 2.4.20, and 2.4.8. Since I barely know what I'm doing in Linux anyway, I have no real reason to need to boot into Linux using an earlier kernel, so I'd like to remove the old kernel, but I have no idea how to go about doing it.
Old 09-30-2003, 01:10 PM   #2
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Registered: Feb 2003
Location: N'rn WI -- USA
Distribution: Kubuntu 8.04, ClarkConnect 4
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It's usually a "Good Thing" (tm) to have a couple kernels on your system. In case something happens to one of the files that the newer one uses, you will (hopefully) be able to boot to the older kernel. Once you get booted to the older kernel, you can fix the newer kernel.

If you really want to delete it, there are several files you would need to edit / delete...

Edit /boot/grub/grub.conf... Delete the enty pointing to the old kernel. Depending on the order they are listed in, you might need to change your "default=" line to point to the correct entry that you want GRUB to boot by default. Be sure to start counting with 0.

In /boot/ delete the following files that have the 2.4.8 version number...
-- config (the config file RH used to build the kernel)
-- initrd (the INITial RamDisk used to boot the system)
-- module-info
-- vmlinux (uncompressed kernel)
-- vmlinuz (compressed kernel)

In /lib/modules/, delete the directory with the 2.4.8 version number.

After that, the old kernel will be gone.


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