There is no floppy drive installed.
If you get cmos checksum error replace the PC side battery.
Once that is done, go into the setup menu (the key to mash should be listed on the screen while POST is being done).
Disable everything except serial (rs-232), PCI, and hard drive. Make sure hard drive is on the top of the boot priority and set to autodetect.
Save the setting then reboot.
For the semaphore id error, be sure to disable semaphore count check. (See the dsnet reference included in official PS2 SCE SDK for more details. You can find the link to that somewhere on this website)
Most games will not boot due to differences between the software contained in the flash ROM of the DTL-T10000 and the SDK the game was compiled with. In that case, enable the flag to reboot using the IOP libraries from SDK 1.3.4.