Hi, I have a Lenovo X301 2776 LEG. Trying to use the machine with the AHCI results in a hang for a while then it can't mount the root FS as it can't access the disk. The following message is displayed: ahci0.1: CMD TIMEOUT state=5 slot=3 cmd-rg 0x4c317<HPCP,CR,FR,FRE,POD,SUD,ST> sactive=0000000 active=00000008 expired=00000000 act=00000000 ci=00000008 STS=d0<BSY> ahci0.1: cmd 18: timeout achi0.1: Warning, issuing CLO after timeout. Prob0: ahci0:0:13:0) Unretryable error ... Cheers, Edward.