You are installing a kernel with an initrd image                         │
 │                                                                           │
 │ You are attempting to install an initrd kernel image (version 2.6.17) on  │
 │ a machine currently running kernel version 2.6.15-26-powerpc.             │
 │                                                                           │
 │ I have been unable to find a suitable tool for generating initrd images   │
 │ (I looked at the list "mkinitramfs-kpkg mkinitrd.yaird") This will break  │
 │ the installation, unless such tools are also being installed right now    │
 │ in the same run. (This means, one from the following list                 │
 │ initramfs-tools (>= 0.53) | yaird (>= 0.1.11) | linux-initramfs-tool,)