Subject: Hard-drive detection during installation

I've got trouble with detection of my hard drive in Sharp Mebius Laptop
when I try to install 4.5 Release.
I saw next messages from kernel:
ata0-master: ata_command: timeout waiting for intr
ata0-master: identify failed
When I used floppy from 3.5 branch it loads ok and recognize HDD perfectly
So could you please tell what's wrong in this staff.
thank you fo help

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