Solution to unrecognized optical drive in Linux

Solution to unrecognized optical drive in Linux-general Linux technology-Linux technology and application information. The following is a detailed description. Source: Taoyuan?

I bought a founder R650 notebook a few months ago, and the optical drive under Vista can be properly recognized. After Fedora7/8 is installed, the system cannot identify the optical drive. The dmesg and hal logs do not contain the optical drive information, just as I do not have this device. My chipset is ICH7 and uses the SATA/PATA hybrid mode to control the hard drive and optical drive. My hard drive is SATA1's Hitachi 120G, and the light drive is PATA's Samsung Compaq TS-L462D.

After reading a large amount of information on the Internet, the ata_piix module of the kernel does not support the ATAPI device by default, and the control of the optical drive is obtained from libata at startup, thus the optical drive is not recognized. Some solutions are provided on the Internet. For example, the combined_mode = libata, combined_mode = ide, or libata. atapi_enabled = 1 parameter is added to the kernel at startup, but they are all invalid to me.

For details, see the following link:
Http://www.thinkwiki.org/wiki/Problems_with_SATA_and...

During a visit to the ubuntu-cn forum tonight, I suddenly found a Post saying the same question. The answer below is to set the optical drive in BIOS to ATAPI Removable instead of Auto. The experiment proves that this method is effective and solves the problem that has left me depressed for a long time. Summary:

1. Start the BIOS and select the optical drive settings.

2. Set the hardware type of the optical drive to ATAPI Removable, instead of the default Auto. For other devices, such as MultiSect and SMART, Disable; for the transmission mode, select UDMA2; otherwise, it will be slow.

3. Save and restart!