problem installing debian-506-powerpc

[Zsombor <zsombibi@gmail.com>]

Hello,

I have a 64-bit p550 power where I tried to install Debian using image
http://cdimage.debian.org/debian-cd/5.0.6/powerpc/iso-cd/debian-506-powerpc-CD-1.iso
About a year ago I had successfully installed Debian64 but booting
with this image it says:

[0.510170] Ramdisk: compressed image found at block0
[0.722845] Ramdisk: incomplete write (-28!=32768) 10485760
[0.771772] Ramdisk: ran out of compressed data
[0.771782] Ramdisk: invalid compressed format (err=1)
[0.791592] List all partitions:
[0.791603] No filesystem could mount root, tried:
[0.791614] Kernel panic - not syncing: VFS: unable to mount root fs on
unkown block(0,1)
[0.791631] Rebooting in 180 seconds

I gave a try with increasing ramdisk_size but Kernel panic still
appears. Googling this error, XFS may be the problem but as far as I
noticed it is resolved in Lenny.

Can you please help with some advise?

Thank you in advance,
Zsombor