Hello, It seems there is a problem with idebus parameter with 2.6.7-rc1. Indeed, it doesn't take into account lilo append. With 2.6.7-rc1-mm1, i've got: Kernel command line: BOOT_IMAGE=LinuxNEW ro root=304 idebus=66 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx With 2.6.6-mm3, i've got: May 24 11:37:43 greg-port kernel: Kernel command line: BOOT_IMAGE=LinuxNEW ro root=304 idebus=66 May 24 11:37:43 greg-port kernel: ide_setup: idebus=66 May 24 11:37:43 greg-port kernel: ide: Assuming 66MHz system bus speed for PIO modes I tried to seek in the code, but my level is not as good as I would like it. :) Thank you all for the good work with linux, keep up with it ! :) -- Auzanneau Grégory GPG 0x99137BEE