"ata2: link is slow to respond, please be patient" during boot

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http://askubuntu.com – I have a KINGSTON SV100S264G solid-state drive in my Lenovo ThinkPad. Ubuntu 12.04 was booting just fine until a few days ago, it started to boot very slowly. More like it did not want to boot up normally but in recovery mode or with a LiveCD. Error: ata2: link is slow to respond, please be patient (ready=0) ata2: SRST failed (errno=-16) This happens to me three times, then it says: ata2: link is set to 1.5 Gbps (or something like that) I do not know what caused this or how to fix it. Also this problem is not allowing me to install Ubuntu 12.10 or 12.04. My question is, (HowTos)