Comment 1 for bug 718087

I do not think PowerPC is a currently supported CPU architecture for Lubuntu 11.04, the only ISOs produced for Lubuntu 11.04 Alpha testing so far have been i386 ISOs.

Regarding those wishing to install the lubuntu-desktop package after the fact on PPC machines, surely those folks (probably people familiar with PPC and using older versions of Linux) are generally competent enough with the relevant tools to examine the Depends: list of the package specifies, and install all of them except chromium-browser , if they so choose. lubuntu-desktop is simply a meta-package, so there is no loss of code or functionality in doing this. The Lubuntu team has made a deliberate decision that its default browser is now chromium-browser, so if that package is not and will not be available for older PPC machines, that is unfortunate, but not (as I see it) something to be overly concerned by.

If Lubuntu ever does create PPC ISOs it will need to do something different, but I suspect there are more pressing work items for the team at the moment :)

Suggested workaround:

  sudo apt-get install abiword, ace-of-penguins, alsa-base, alsa-utils, anacron, apport-gtk, audacious, audacious-plugins, cron, cups-driver-gutenprint, desktop-file-utils, evince, file-roller, galculator, gdebi, gecko-mediaplayer, gksu, gnome-bluetooth, gnome-disk-utility, gnome-keyring, gnome-mplayer, gnome-power-manager, gnome-system-tools, gnumeric, gnumeric-doc, gpicview, gucharmap, gvfs-backends, gvfs-fuse, hardinfo, icedtea-plugin, jockey-gtk, language-selector-gnome, leafpad, logrotate, lubuntu-core, lxappearance, lxappearance-obconf, lxdm, lxinput, lxkeymap, lxlauncher, lxpanel-indicator-applet-plugin, lxrandr, lxsession-edit, lxshortcut, lxtask, lxterminal, lzma, modemmanager, mtpaint, network-manager-gnome, ntp, nvidia-common, obconf, osmo, pcmciautils, pidgin, pidgin-libnotify, pm-utils, policykit-desktop-privileges, ppp, scrot, simple-scan, software-properties-gtk, sylpheed, sylpheed-doc, sylpheed-i18n, sylpheed-plugins, synaptic, system-config-printer-gnome, transmission, ttf-indic-fonts-core, ttf-kacst-one, ttf-khmeros-core, ttf-lao, ttf-liberation, ttf-punjabi-fonts, ttf-takao-pgothic, ttf-thai-tlwg, ttf-ubuntu-font-family, ttf-unfonts-core, ttf-wqy-microhei, ubuntu-extras-keyring, unzip, update-notifier, usb-modeswitch, wireless-tools, wpasupplicant, wvdial, x11-utils, xchat, xdg-user-dirs, xfburn, xpad, xscreensaver, zip

Then add another browser of your choice, that is packaged for PPC.