Removing Old Kernels

[Werner Schram]

Karl F. Larsen wrote:
> Leonard Chatagnier wrote:
>   
>> Bret Busby wrote:
>>     
>>> On Fri, 11 Dec 2009, Tom H wrote:
>>>
>>>    
>>>       
>>>> Date: Fri, 11 Dec 2009 15:09:14 +0100
>>>> From: Tom H<tomh0665 at gmail.com>
>>>> Reply-To: "Ubuntu user technical support, not for general discussions"
>>>>      <ubuntu-users at lists.ubuntu.com>
>>>> To: ubuntu-users at lists.ubuntu.com
>>>> Subject: Re: Removing Old Kernels
>>>>
>>>>      
>>>>         
>>>>> There was a feature in ubuntu some time in the earlier releases where in
>>>>> there used to be only a specific copies of kernels maintained. The older
>>>>> one's would get deleted once the updates were applied. Not sure if its
>>>>> there in the current versions of ubuntu 9.10
>>>>>        
>>>>>           
>>>> You can add a "howmany=X" line to menu.lst to limit the number of
>>>> kernels that grub1's update-grub adds to menu.lst.
>>>>
>>>> Based on
>>>> http://www.mail-archive.com/grub-devel@gnu.org/msg13049.html
>>>> it is unlikely to be added by the grub developers. It seems to have
>>>> been a Debian/Ubuntu customization. I do not have a grub1 install to
>>>> look at its update-grub script but I remember it to consist of more
>>>> than the grub2 update-grub script, which is a one-line grub-mkconfig
>>>> invocation.
>>>>
>>>>
>>>>      
>>>>         
>>> Please advse of the path for menu.lst .
>>>
>>> Thank you in anticipation.
>>>    
>>>       
>> Unless I misunderstand you request, menu.lst is in folder /boot/grub when using
>>
>> grub1.  For grub2, menu.lst is replaced by grub.cfg in the same folder.
>>
>>
>>     
>
> 	That is not the end of the story. How do you change grub.cfg? 
> Menu.lst you just edited with gedit, simple. Editing grub.cfg 
> is NOT SIMPLE!
>
>   
If you type gedit /boot/grub.cfg, and read the first 5 lines, you see 
that they clearly state that you shouldn't edit this file, but edit 
/etc/default/grub and use grub-mkconfig. Grub-mkconfig automatically 
detects available kernels and initrd's, and creates your config 
accordingly. Which is actually a lot easier than grub1.

Werner