Removing Old Kernels

Werner Schram wrschram at gmail.com
Sat Dec 12 14:58:26 UTC 2009


Karl F. Larsen wrote:
> Werner Schram wrote:
>   
>> 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
>>
>>
>>     
> 	Exactly. I did that once with sudo grubmkconfig and it ran 
> but didn't allow me to make any changes! It just ran through 
> grub. I need to know how to make windows the first thing to 
> boot. Easy on menu.lst but can't see a way with grub-mkconfig.
>
> 73 Karl
>   
That does not have anything to do with "removing old kernels". Please 
start your own threads to ask different questions. This doesn't help 
answering the original question, nor is it going to anwer yours.




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