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How can I get my older linux kernal back?

Asked by Steven D. Shown

I am using Ubuntu 10.10, and after installing the updated kernal I have been having a problem with my memory slowly going over to swap, and eventually causing the system to crash for no reason. I was advised to clear out all the older kernal packages which I did, but now I believe that the newest kernal is the cause of the problem, because I have never had this happen until after I installed the updated kernal. Since I cannot simply reboot into the previous kernal (now that I have removed them from the GRUB menu), is there any way I can re-download it? If so, how?

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Eliah Kagan (degeneracypressure) said : 		#1

As you now know, it is actually a good idea to keep at least one previous kernel, for situations where a newer kernel produces new problems.

If your old kernel is still available for installation, then you can simply reinstall it. The easiest way may be to search for it in the Synaptic Package Manager. If you don't remember what it was called or what its version number was, then please open /var/log/dpkg.log in a Text Editor, select everything, copy it to the clipboard, paste it at http://paste.ubuntu.com, post a link to it here, and tell us about when (day, and if possible, time) you performed the update in which the new kernel was installed (but if you don't know that, it's OK).

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Steven D. Shown (stevenshown90) said : 		#2

Ok, I hope I did this right. The output from my text editor is pasted at http://paste.ubuntu.com/656221/.
I believe it was about 2 or 3 weeks ago that I performed the update. That's about as close as I can get. I hope this helps

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Eliah Kagan (degeneracypressure) said : 		#3

The latest kernel package you removed was linux-image-2.6.35-28-generic. (You had also removed linux-image-2.6.35-27-generic and linux-image-2.6.35-22-generic). You may be able simply to install linux-image-2.6.35-28-generic.

If you are not able to install it, please post another reply (please describe how you tried to install it and what happened).

If you are able to install it, then you can get a menu on boot up where you can select it, by holding down Shift when your computer starts up. If you verify that it fixes your problems and you want to make it your default kernel, you could use startupmanager for this purpose (https://help.ubuntu.com/community/StartUpManager).

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