Change listings in Grub

[Edwin McGuire]

----- Original Message ----- 
From: "NoOp" <glgxg at sbcglobal.net>
To: <ubuntu-users at lists.ubuntu.com>
Sent: Saturday, June 19, 2010 6:58 PM
Subject: Re: Change listings in Grub


> On 06/19/2010 12:17 PM, Edwin McGuire wrote:
>> Can I change to one listing of kernel choice on menu instead of 3 which I 
>> have. Thanks to Colin was able to change default OS this way,
>>  sudo gedit /etc/default/grub
>
> Colin told you wrong... Please do not use 'sudo gedit'. Instead use
> 'gksudo or gksu gedit'. For graphical applications use gksu or gksudo
> instead.
>
>>  then
>>  sudo update-grub
>> I have6 lines of Linux kernels:
>>
>> 0        Ubuntu, Linux 2.6.31-22-Generic
>> 1        Ubuntu, Linux 2.6.31-22-Generic (recovery mode)
>> 2        Ubuntu, Linux 2.6.31-21-Generic
>> 3        Ubuntu, Linux 2.6.31-21-Generic (recovery mode)
>> 4        Ubuntu, Linux 2.6.31-14-Generic
>> 5        Ubuntu, Linux 2.6.31-14-Generic (recovery mode)
>> 6    #  memory test (memtest86+)
>> 7        memory test (memtest86+,serial console 115200)
>> 8    *   Microsoft Windows XP Professional
>>
>> *   now default
>> #  old default
>>
>> can I delete lines 2-5.
>> then also change default # again to 4.
>
> It wouldn't make any difference. The lines are not contained in
> /etc/default/grub. The information is reporting the linux kernels on
> your system.
>
>> new would be:
>>
>> 0    Ubuntu, Linux 2.6.31-22-Generic
>> 1    Ubuntu, Linux 2.6.31-22-Generic (recovery mode)
>> 2    memory test (memtest86+)
>> 3    memory test (memtest86+,serial console 115200)
>> 4    Microsoft Windows XP Professional
>>
>> Am I on the right track.
>
> *No* If you wish to remove some of the kernels (I recomend that you
> *keep* one older kernel - 2.6.31-21-Generic for the time being - that
> gives you a fallback kerenel if you have problems with
> 2.6.31-22-Generic). Open Synaptic and look for 2.6.31-14. Click on the
> leftmost column to see what is installed (green), select all 2.6.31-14's
> with 'linux-headers, linux-image) and 'Mark for complete removal' - Apply.
>
> Now if you wish to remove one of the 'memory test' entries read the pdf
> that I sent to you:
> <quote>
> 20_memtest86+ Searches for /boot/memtest86+.bin and includes it as an
> option on the GRUB 2 boot menu. There is currently no line option to
> remove this entry from the menu. The display of memtest86+ can be
> inhibited by removing the executable bit from this file: sudo chmod -x
> /etc/grub.d/20_memtest86+ and then running sudo update-grub.
> </quote>
>
> so:
>
> $ sudo chmod -x /etc/grub.d/20_memtest86+
> $ sudo update-grub
>
> And now you should see:
> 0        Ubuntu, Linux 2.6.31-22-Generic
> 1        Ubuntu, Linux 2.6.31-22-Generic (recovery mode)
> 2        Ubuntu, Linux 2.6.31-21-Generic
> 3        Ubuntu, Linux 2.6.31-21-Generic (recovery mode)
> 4    *   Microsoft Windows XP Professional
>
> If you decide that you'd like to have the memtest back later on:
>
> $ sudo chmod +x /etc/grub.d20_memtest86+
>
> and then:
>
> $ sudo update-grub
>
> to verify that it works & you now have the memtest86+ back.
>
>
>
> -- NoOp
recieved startup manager but not Grub in PDF.
if you could send it be much appreciated.
Thanks Ed






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