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[ubuntu] Dual boot Ubuntu and Puppy using grub2

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hi. first, i want to thank all of the moderators and ubuntu community for all the great support given.
second, i should apologize up front for how messed up this post will seem to most who read it.. sorry, i get carried away sometimes.
i have a couple of issues i am trying to solve, and have spent many hrs researching and trying various options, to no avail.
first, i have been trying to get a Puppy frugal install to boot from my Ubuntu supplied grub2 menu, but have not been able to.
was wondering if anyone does this, and if so, how ?

i am pretty sure grub is loaded into the mbr (i think i chose install to sda).
i have added entries in the 40* custom file, but have never been able to boot into Puppy from the grub menu.
"Invalid extent", and "you must first boot linux" are the messages i am getting when trying to boot puppy from grub menu.
puppy boots fine from CD, and it finds the .sfs file on sda6. have the boot files in psubdir puppy5.4.

i have Slacko puppy 5.4 installed in sda6. Ubuntu 12.04 on sda1, and now actually on sda3 as well.
originally i had ubuntu on sda1, but it was a smaller partition with very little freespace, so i copied it to the larger sda3 partition using dd.
if possible i will eventually remove ubuntu from sda1 and use it for something else.
this second problem has to do with update-grub only updates the mbr from the sda1 install. running it from sda3 does not change what i see when booting.
i ran a command that now shows sda3 as the boot partition instead of sda1, but that does not change "who" updates the grub menu.
i also have added a manual entry for ubuntu on sda3 into the 40* file, since the update-grub was mixing uuid's in the grub file it creates.
i shut off the 30 os-prober for now as well. update-grub was giving me both uuid's (from sda1 and sda3) in the menu options it created for sda3, so that's why i shut off the 30 os prober. now i can boot into either ubuntu (sda1 or sda3) without a problem, but still can not get puppy to boot from the grub menu.

The dd copy was done after working with and not being able to boot puppy from grub2, so i don't think that issue has anything to do with puppy not booting.
i do actually get some different error messages than i did before, but i don't have them available right now.. can post later if needed.

thanks for your help.

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