If you are downloading and installing YDL 6.1, you may have noticed that there are two ISOs available on ydl.net and on the public mirrors:
This HowTo explains which one to download and install.
Download this DVD if:
This ISO contains a patch for a boot issue on the newer model PS3.
Download this DVD if one of the following conditions is true:
This ISO does not include the boot issue patch and is compatible the older model PS3s.
If you are not sure of your PS3 model number, we recommend downloading the yellowdog-6.1-ppc-DVD_20081119.iso. If you encounter an issue where you are unable to boot into YDL, download the other ISO (yellowdog-6.1-ppc-DVD_20090201_NEW_PS3.iso) and follow these instructions to install the update.