Hello, I have installed simplicity puppy lxpuppy64 that comes with the dos version of grub. My issue is that i have 3 other linux flavours and win7 on my HDD and when i installed puppy i let grub do it's thing which resulted in an information window pointing to the different naming conventions and that i may need to change my partition number that puppy is on from sda3 to sda4 on menu.lst. However, although all my OS's were listed when i rebooted, puppy would not boot fully (ending with kenel panic) without the cd inserted even though it was a full install. So using supergrub i booted into pearl linux and did a grub update but that never listed puppy at all. Is there some way i can add it to grub.cfg. as puppy only refers to menu.lst, or why it is not picked up by the grub update. Thanks for any help Brian

Did you make the change from sda3 to sda4? If so, what happened?
Never heard of pearl Linux. Is the link below what you have?

http://www.pearllinux.com/

Is this an MBR boot? Windows 7 should be although newer windows use UEFI. So which bootloader from which system do you have on the MBR?
If you actuall ran grub-update it wouldn't work as the actual command is update-grub which needs to be run as root user, maybe preceded by sudo. If Puppy has a menu.lst file, it is using Grub Legacy which is no longer being developed. Most current Linux systems use Grub2 which has a grub.cfg file, the Grub menu similar to menu.lst.

You could try an online search for 'bootinfoscript' and go to the site, download it and run it and post the output, a results.txt file here as it will provide more details on partition and boot files.

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I just ran into this situation last week, and the solution I found at this link helped me:

http://www.bleepingcomputer.com/foru...b2-bootloader/

I just added puppy to my computer whic already has Win7, Ubuntu, and Fedora. I can now boot any OS from the grub2 menu. bootinfoscript that yancek suggested would be a good way to look at your grub configuration and observe what grub is looking for.

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To Yancek the link to pearl linux you have is correct. It is the new pear linux and as far as i am concerned excellent. But back to my problem I used the link by Froster ,thank you it was excellent in explaining what file to edit.Brian.