error: out of memory when trying to boot from gentoo ppc64

[abdus]

hi there
how are you doing
i am facing an error please somebody help me
i am trying to boot gentoo live media on an ibm power 710
it is using ppc64 big endian cpu so i took the iso labeled "PPC/PPC64 Minimal Installation CD" and burned it on a DVD
every time i try to boot it it gives me the "error: out of memory "
if i chose ibm power from the menu which has ppc32, ppc64 and ibm power
after i get that error it takes me back to grub's menu where i can choose between those options(ppc32, ppc64 and ibmpower)
if i chose ppc64 the error is "unrecognized number"
please tell me what to do
the only media that was able to boot is debian 12 ppc64 it installs to be honest but fails to set grub up
it has a very minimal shell which does not let me install gentoo