auto generated menu.lst file contents

Saqlain Abbas saqlain.abbas.7 at gmail.com
Fri Jan 4 17:42:47 UTC 2013


Alexander! what you said perfectly make sense, i am going to do same right
now :-), i am newbie and my purpose of doing all this is to understand and
i agree with you, may be better way is to look at source...

On Fri, Jan 4, 2013 at 10:36 PM, Alexandre Strube <surak at ubuntu.com> wrote:

> Hello Saqlain,
>
> you know the saying: give a man a fish, he will eat for a day. Teach a man
> to fish....
>
> The best thing of open source is that, well, you have the source. Inside
> the apt repository files, you can uncomment the source repositories, and,
> after an apt-get update, instead of downloading the binary, you can
> download the source.
>
> Out of my memory, I suggest you download grub's source, find the source
> file(s) of the update-grub, and start by looking at simple functions that
> open files, such as fopen(), or for some strings (as some of these file
> names might be hardcoded), or just stroll around the code. You would be
> amazed at how much one is able to learn just by looking at some
> never-seen-before code (or horrified, depending on the case) - but in any
> case, you will learn WHILE having a mental challenge.
>
> I sincerely hope this helps.
>
>
> 2013/1/4 Saqlain Abbas <saqlain.abbas.7 at gmail.com>
>
>> Thanks Colin for suggestions!
>>
>> I have now used used Ubuntu 12.04 (I can see 12.10 also available but did
>> not give it a try) from https://wiki.ubuntu.com/Core I have modified
>> rootfs as per my requirements (incorporated my all scripts and
>> customization into into it, and is perfectly fine), I have modified
>>  /etc/lsb-release, but unfortunately still menu.lst generated through
>> update-grub, contain title as ubuntu. I suppose with this version
>> update-grub should pick name from lsb-release as you mentioned, or i am
>> missing something else also? Or you would suggest me to use 12.10, i want
>> to avoid modifying update-grub, the reason you mentioned it will pick from
>> lsb-release, is there some other files which i need to modify also? I have
>> modified /etc/lsb-release, /etc/os-release, /etc/issue, /var/run/motd etc
>>
>> Thanks,
>> Saqlain.
>> On Fri, Jan 4, 2013 at 6:11 PM, Colin Watson <cjwatson at ubuntu.com> wrote:
>>
>>> On Fri, Jan 04, 2013 at 02:10:55PM +0500, Saqlain Abbas wrote:
>>> > I have customized Ubuntu distribution, along with several
>>> customization i
>>> > have also changed distribution name, it works well. Currently I use
>>> this
>>> > cutomized distro rootfs with Linux kernel  but whenever i do
>>> update-grub,
>>> > the auto-generated menu.lst file do have original distro name, My
>>> question
>>> > is grub read which file to determine distro name, as i want to
>>> customize it
>>> > completely.
>>>
>>> The very old version of update-grub you're using hardcodes it, so you'd
>>> have to edit the update-grub script directly to fix this.  More recent
>>> versions (anything from Ubuntu 7.10 onwards) pick up the title from
>>> lsb_release.
>>>
>>> > Sample snippet from auto-generated menu.lst file
>>> >
>>> > title Ubuntu, kernel 2.6.17-10-generic
>>> > root (hd0,4)
>>> > kernel /boot/vmlinuz-2.6.17-10-generic root=/dev/sda5 ro quiet splash
>>> > initrd /boot/initrd.img-2.6.17-10-generic
>>>
>>> You are using a dangerously old version of Ubuntu; that looks like
>>> Ubuntu 6.10, which has been out of security support for nearly five
>>> years and by now is very likely to be full of vulnerabilities.  Even the
>>> version of Ubuntu that fixed the bug of not using lsb_release here has
>>> itself been out of security support for nearly four years!  You should
>>> upgrade to something very much newer at the earliest opportunity.
>>>
>>> Cheers,
>>>
>>> --
>>> Colin Watson                                       [cjwatson at ubuntu.com]
>>>
>>> --
>>> Ubuntu-devel-discuss mailing list
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>>
>>
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>> []
>> Alexandre Strube
>> surak at ubuntu.com
>> <https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss>
>
>
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-- 
Kind Regards,
Saqlain Abbas.
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