how to modify name entry grub [kubuntu 10.10]

[polis2010]

Hi,
trying to change with the entry of grub:
sudo kate /boot/grub/grub.cfg putting "Windows 7" in place of Windows Recovery Environment (loader) on /dev/sda2.
just launch the command sudo update-grub charge me more:
-Found linux image: /boot/vmlinuz-2.6.35-22-generic
-Found initrd image: /boot/initrd.img-2.6.35-22-generic
-Found memtest86+ image: /boot/memtest86+.bin
-Found Windows Recovery Environment (loader) on /dev/sda2
Windows 7 should be written here. The procedure is another?
Thanks

[ptkobe]

Yes, with grub2 you don't edit grub.cfg (check why in the link below).

Your answer is at
https://help.ubuntu.com/community/Grub2
under Custom Menu Entries

Regards
Luis

[polis2010]

help me write name grub entry?

[ptkobe]

help me write name grub entry?

Sure.

Custom Menu Entries

GRUB 2 allows users to create customized menu selections which will be automatically added to the main menu when sudo update-grub is executed. An empty 40_custom file is available in /etc/grub.d/ for use or to serve as an example to create other custom menus.

The user can either edit the default /etc/grub.d/40_custom file or create a new one. The easiest way to create the content of a custom menu is to copy a working entry from /boot/grub/grub.cfg. Once copied, the contents of 40_custom can be tailored to the user's desires.

Run sudo update-grub after.

$ cat /etc/grub.d/40_custom
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.

If you have more questions, get back.
And please tell us how it went.
Regards,
Luis

"Linux is easy."

[tinytux]

Hello.

To add to Luis suggestion, I'd like to add one.
Here is what I found into my grub.cfg located in /boot/grub/

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows NT/2000/XP (on /dev/sda1)" {
insmod fat
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 1c03-0fe5
drivemap -s (hd0) ${root}
chainloader +1
}

This is the portion of the script that would be loaded at boot time.
You cannot modify this by hand. It won't do anything good.
Insted, add this entry (yours, not mine) to the /etc/grub.d/40_custom as described by Luis.
This is now where you can modify the entry with the title that you would like to appear on the screen.
Modify it. Do not forget the } sign at the end otherwise it won't work!
Save the file.
run udpate-grub as root
Check your /boot/grub/grub.cfg file to see if your modification has been made.
Reboot.
You should be able to see the new entry you've made at the bottom of the menu list.

[polis2010]

on my grub.cfc there is :
### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows Recovery Environment (loader) (on /dev/sda2)" {
insmod part_msdos
insmod ntfs
set root='(hd0,msdos2)'
search --no-floppy --fs-uuid --set xxxxxxxxxxxxx
drivemap -s (hd0) ${root}
chainloader +1
}

I want to put "Windows 7" on file 40_custom, would like?

[ptkobe]

polis, you are very new to Linux, right? Or do you have dificulty reading in English?
Just asking so I may help better.

"You cannot modify this by hand. It won't do anything good.
Instead, add this entry (yours, not mine) to the /etc/grub.d/40_custom as described by Luis.
This is now where you can modify the entry with the title that you would like to appear on the screen.
Modify it. Do not forget the } sign at the end otherwise it won't work!
Save the file.
run udpate-grub as root
Check your /boot/grub/grub.cfg file to see if your modification has been made.
Reboot.
You should be able to see the new entry you've made at the bottom of the menu list. "

[polis2010]

luis then, how to add entry in 40_cutom file?
thanks

[ptkobe]

The idea is to open both files in a text editor and copy and paste from grub.cfg to 40_custom.

But to do that you must have write permissons to /etc/grub.d/40_custom.
If you type
$ls -l /etc/grub.d/40_custom
you'll get
-rwxr-xr-x 1 root root 214 2009-12-07 22:49 /etc/grub.d/40_custom

That means only root user can write on it.

Saw in your 1st post you use kate. Do you know how to do the copy and paste with it between files, running as root (sudo kate ...)?

That will do it.

Hope it helps
Luis

PS: I use vi or nano. I may just open two terminals, open both files, select with mouse in grub.cfg (or left click -> Copy), change to 40_custom, press mouse wheel/middle button to paste (or left click -> Paste) .

There's several other ways to do it, with terminal based or graphical editors. The easiest way depends on your linux knowledge.

[tinytux]

The idea is to open both files in a text editor and copy and paste from grub.cfg to 40_custom.

But to do that you must have write permissons to /etc/grub.d/40_custom.
If you type
$ls -l /etc/grub.d/40_custom
you'll get
-rwxr-xr-x 1 root root 214 2009-12-07 22:49 /etc/grub.d/40_custom

That means only root user can write on it.

Saw in your 1st post you use kate. Do you know how to do the copy and paste with it between files, running as root (sudo kate ...)?

That will do it.

Hope it helps
Luis

PS: I use vi or nano. I may just open two terminals, open both files, select with mouse in grub.cfg (or left click -> Copy), change to 40_custom, press mouse wheel/middle button to paste (or left click -> Paste) .

There's several other ways to do it, with terminal based or graphical editors. The easiest way depends on your linux knowledge.

YEs

Don't forget to make a copy of those files FIRST...

And in case you don't get it, here it is again.

1. Open the file 40_custom which is located in /etc/grub.d/
Ok ?

2. Copy and paste your entry at the bottom as said in the file:
### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows Recovery Environment (loader) (on /dev/sda2)" {
insmod part_msdos
insmod ntfs
set root='(hd0,msdos2)'
search --no-floppy --fs-uuid --set xxxxxxxxxxxxx
drivemap -s (hd0) ${root}
chainloader +1
}
Ok ?

3. Rename this line >>> "Windows Recovery Environment (loader) (on /dev/sda2)"
with something you like.
Ok ?

4. Save the file (of course you are root. right ?)
Ok ?

5. Do an update-grub
Ok ?

6. Reboot.
You may see an new entry at the bottom.

Now, would you remove the previous entry ?