The Internode Mirror contains a wide selection of software for download by Internode customers.
File Download Mirror Directory Listing
Index of /pub/linux/debian/dists/oldstable/main/installer-ppc64el/20210731/images/netboot/debian-installer/ppc64el/
Index of /pub/linux/debian/dists/oldstable/main/installer-ppc64el/20210731/images/netboot/debian-installer/ppc64el/