auto generated menu.lst file contents

Fri Jan 4 17:54:10 UTC 2013

Alexander, once again thank you! You guided me to a new world :-), i
download grub source code and update-grub command script tells whole story
;)

# Title
title=$(lsb_release --short --description 2>/dev/null) || title="Ubuntu"

-- 
Kind Regards,
Saqlain Abbas.
On Fri, Jan 4, 2013 at 10:42 PM, Saqlain Abbas <saqlain.abbas.7 at gmail.com>wrote:

> 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
>>>> ]
>>>>
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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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