Multiple Options in grub

[vijay shanker]

Hi Leo,

Yes you are right it is kernels. :)

My questions:

1> I used synaptic package manager to update to latest version of UBUNTU.
When i opened this tool; it suggested me to upgrade and i did.

2> What  sort of implications are there of having multiple kernel options
other then having a fall back option.

3> why UBUNTU does not update kernels; instead of reinstalling the latest
version?

4> Is there will be any problem with my machine if i uninstall.

In the mean time i have read the tutorials at ubuntu site for doing the
changes you said. and fully understand then. As i think of. :)

Regards,
Vijay Shanker Dubey



On Wed, Nov 4, 2009 at 11:27 AM, Leonard Chatagnier
<lenc5570 at sbcglobal.net>wrote:

>
> --- On Tue, 11/3/09, vijay shanker <vijay.shad at gmail.com> wrote:
>
> > From: vijay shanker <vijay.shad at gmail.com>
> > Subject: Multiple Options in grub
> > To: "Ubuntu user technical support, not for general discussions" <
> ubuntu-users at lists.ubuntu.com>
> > Date: Tuesday, November 3, 2009, 11:06 PM
> > Hi all;
> >
> > There is something i need to share and ask for your
> > comments
> >
> > I have been using UBUNTU for many years; But still a
> > partial user; dont have a in depth knowledge.
> >
> > On my box i first installed ubuntu 8. And when it was
> > announced to release of 9.0.24, i upgraded to
> > the latest version of ubuntu. And Now i am upgraded to
> > 9.10
> >
> >
> > Now when my box boots it gives me a lot of
> > options to
> > choose. -----------------Ubutntu 9.10
> > , karnel 2.6.31-14-generic
> >
> > Ubutntu 9.10 , karnel 2.6.31-14-generic (recovery
> > mode)Ubutntu 9.10 , karnel
> > 2.6.26-16-genericUbutntu 9.10 , karnel
> > 2.6.26-16-generic (recovery mode)Ubutntu 9.10 ,
> > karnel 2.6.28-15-generic
> >
> > Ubutntu 9.10 , karnel 2.6.28-15-generic (recovery
> > mode)Ubutntu 9.10 , karnel 2.6.26-7-generic
> > (recovery mode)Ubutntu 9.10 , karnel
> > 2.6.26-7-generic (recovery
> > mode)---------------
> >
> >
> > Of course, i choose top one form thee
> > list.
>
> That's usually the best choice.
>
> > Can any body describe the situation for me? Is
> > there any way i can go and configure the options?
>
> It appears you have kernels(not karnels) from the earlier version you
> upgraded from.  Not sure how it happened though as don't know exactly how
> you upgraded.
>
>  Does my
> > system has 4 kernels as options; if yes i must remove all
> > old kernel?
> >
> Yes, you have all the kernels shown installed.  You do not have to remove
> any of them and it's always advisable to keep at least one of the latest old
> kernels in case the latest kernel fails and you can't boot from it. You then
> can boot up from the other kernel and make repairs.
> If you must trim the list down you can purge the oldest kernels or edit
> /boot/grub/menu.lst assuming you have the ext3 file system and grub-legacy
> installed instead of ext4 and grub2 installed.
> To purge a kernel do:
>
> sudo aptitude purge <kernel name> or use synaptic package manager to
> completely remove the kernel.
> Better run sudo update-grub after removing the kernels to update menu.lst.
>
> To edit /boot/grub/menu.lst then do:
>
> sudo nano /boot/grub/menu.lst
>
> Then comment out the kernels you don't wan't to see.
> This wont remove the old kernels but you wont see them on grubs startup
> selection.  Also run sudo update-grub after modifying/editing menu.lst.
>
> If there is something you don't understand then post back with your
> questions as you can make the system unbootable by modifying menu.lst
> incorrectly.
>
> If you are using ext4 and grub2, it's more complicated but can be done.
>  Let the list know if you are using grub2.
>
> Leonard Chatagnier
> lenc5570 at sbcglobal.net
>
>
>
>
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