I have two HDDs

1. IDE Samsung 80 GB - here installed MacOS X
2. SATA Samsung 250 GB - here I keep everything


Here is the issue:
Re-Installed yesterday MacOS (kalyway 10.5.2), 'cause on 10.5.5 I had problems with E-MU 0404usb. Before used to work on MacOS x about three months without eny troubles.

Two hours ago restarted PC by RESTART-BUTTON, because Transmission didn't responding.
When OS restarted second drive just gone... Also can't see HDD in DiskUtility.... ((


In BIOS HDD - is, on PC startup HDD - is... I even launched WinXP install disc and there is two HDDs with unknownable partitions...

HDD is working, heating, sounding... But MacOS doesn't seeing him...

Try booting in safe mode. If failed then try booting with -s option and use mount command to mount to said HDD and check.

what command to mount THIS HDD?
and how boot in safe mode?

booted in safe mode - nothing... =((((
how to mount second HDD in '-s mode' I don't know...

To mount the command is mount / all. If it does'nt work then I think your AppleIntelPIIXATA.kext has been corrupted, try repairing disk permissions, if not done then try installing a new kext (backup old one).