Easy way to fix your cd-dvd drives

[OErjan]

actually it depends on you specific hardware. some of my external are called sg0 (scsi generic), and the internal is hdc another internal (scsi) is sr0 so if you have scsi emulation (as in 2.4 kernels) you get srX or scdX depending on some other factors.

[Cuddles]

Is there any "Correct" way of doing this?

It appears that that this is a "teachers nightmare", multiple answers, and each one is correct...

I had learned with v3.3, and the previous v3.2, it all comes down to what dmesg says. If dmesg says sr#, then thats what you use, if it says scd#, then thats what you use. Unless you are working with DMA, in that case, you use the hdX...

From what I hear, v3.4 already sets "default" DMA active on all drives, which in previous versions, only the "main" root drive was set active to DMA, and all other drives were "default" DMA not active set.

I can't confirm this DMA setting, I am still running v3.3, but with v3.3, I had to add the hdparm to active set DMA in my bootmisc.sh, at the bottom of the file it had the hdparm for the "root" device already, and I just added for the rest of my other devices. I am going to have to check the DMA settings on v3.4 when I get it. ( I have a picky hard drive, backup data ext3 hard drive, that refuses to work with DMA set )

But, all in all, the HOWTO looks good, minor changes for the device names, but still is quite useful - for any version - I think
Ms. Cuddles

[DimGR]

i got them working perfect
All i needed to do is to reboot my machine

sr0 sr1 is what i needed


thanks for all the help

[OErjan]

actually umount -a&&mount -a should be enough. noneed to reboot 99% of the time.