It seems that the VIA VT8251 is now better supported through the sata_via patch (AHCI patch fails with current ubuntu kernels, probably due to libata backports, see my messages above).
I already had added a VT8251 enabled sata_via.c to my kernel, now I just removed the ahci.ko kernel module, rebuilt my initrd -- now it works. I cannot say anything about stability, we'll see. Currently I'm recompiling my kernel with a "remove-the-via-ahci/add-the- via-sata-code"-patch. I'll post it here after I have switched to this new kernel. Albrecht -- No SATA support for VIA VT8251 (e.g. on ASUS A8V MX) https://launchpad.net/bugs/33030 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs