How to put password in grub

[vickey_20]

Hello
I want to put password in the grub file such that only when the user specifies the right password at start up, He should be able to login. I know how to encrypt the password with md5crpyt. I'm confused where to put the password line and also does restricted works here in grub like lilo.cong ??

[devils casper]

Check this thread.

[vickey_20]

If I have understood correctly then the keyword restricted has no meaning in grub.conf file.

[vickey_20]

Now looking at changing the picture at the startup. I know the line

splasimage=(hd0,1)/grub/splash.xpm.gz

is to be changed. But what is hd0 and this xpm format. When I put a normal image things are totally messed up. It doesn't show grub at all and boots the default OS.

[devils casper]

(hd0,1) means First Harddisk, second partition.

Regular files will not with grub. You have to convert those according to grub specifications.

Execute this code to convert image :

convert picture.jpg -resize 640x480 -colors 14 splash2.xpm
gzip splash2.xpm
mv splash2.xpm.gz /boot/grub/

Replace splash image name in grub.conf with new one.

splasimage=(hd0,1)/grub/splash2.xpm.gz

[saivin]

thank you cho much generous devil... thanks vickey for initiating this conversation..

Btw, I searched web after this and they say

splashimage (hd0,1)/grub/splash.xpm.gz

Will the above command splashimage=(....) is also correct?

[vickey_20]

splashimage (hd0,1)/grub/splash.xpm.gz

Will the above command splashimage=(....) is also correct?

Hey wassup
where did you find this code can you provide us the link.

[vickey_20]

t

splashimage (hd0,1)/grub/splash.xpm.gz

The code works perfectly fine on my machine(Red Hat 4) though I didn't give the

/sbin/grub-install

command as it checks up the changes automatically.

[devils casper]

Hi saivin !

Glad to help you !

splashimage=image_path is default in most distros including Fedora and Ubuntu.
It work fine without = sign in a few distros like OpenSUSE.
Actually, OpenSUSE uses modified grub scripts and started using gfxmenu first time instead of splashimage and it doesn't use = sign.
I will try splashimage without = sign in Ubuntu and let you know.

[devils casper]

The code works perfectly fine on my machine though I didn't give the

/sbin/grub-install

command as it checks up the changes automatically.

Unlike lilo, there is no need to execute grub-install command after editing grub.conf file. Just edit file and reboot machine.