Hardware RequirementsMac OS 9 can be installed on any Macintosh that originally shipped with a PowerPC processor that has at least 32 megabytes of physical RAM and a minimum of 40 megabytes of logical RAM (virtual memory is set to 64 by default if there is less than 64 megabytes of physical RAM installed)....
Get Xubuntu...
To run the Desktop CD (LiveCD + Install CD), you need 128 MB RAM to run or 192 MB RAM to install. The Alternate Install CD only requires you to have 64 MB RAM.
To install Xubuntu, you need 1.5 GB of free space on your hard disk.
Once installed, Xubuntu can run with 64 MB RAM, but it is strongly recommended to have at least 128 MB RAM.
Bon traduction, le live CD d'Xubuntu a besoin de 128 MB pour démarrer
L'alternate CD qui te permet seulement de l'installer (pas de tester "Live") a besoin de 64MB.
et une fois installé, 64 MB sont le minimum, et 128 recommandé.
source :
http://www.xubuntu.org/get