For me the error messages are similar but not identical on three different machins all booting from a cdrom
This is a partial copy of my error messages:
hdc: command error: status=0x51 { DriveReady SeekComplete Error }
hdc: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
hdc: possibly failed opcode: 0xa0
end_request: I/O error, dev hdc, sector 21704
Buffer I/O error on device hdc, logical block 5426
hdc: command error: status=0x51 { DriveReady SeekComplete Error }
hdc: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
hdc: possibly failed opcode: 0xa0
end_request: I/O error, dev hdc, sector 21704
Buffer I/O error on device hdc, logical block 5426
hdc: command error: status=0x51 { DriveReady SeekComplete Error }
hdc: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
hdc: possibly failed opcode: 0xa0
end_request: I/O error, dev hdc, sector 21704
Buffer I/O error on device hdc, logical block 5426
hdc: command error: status=0x51 { DriveReady SeekComplete Error }
hdc: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
hdc: possibly failed opcode: 0xa0
These error messages start during the boot process right after the "timezone message.."
there are about 40 of them...
they finish.... then the boot message "Possible swap partion...."
then Tinycore boots normally