Ive just update to 1.93 that fixes the network disconnect issue that some of us had experienced as a result of downloading Firmware 1.92. The version 1.92 was running as expected on my machine. But after the reboot: My PS3 is just displaying me now a message:

Cannot start
The correct hard disk was not found

TRUE I "WAS" having a 250Gb with 10G partition for Linux Opensuse 10.3 in my PS3 (running with firmware 1.92).

Update: a hard reboot has driven me back to normal operation. The scary error message "Cannot start The correct hard disk was not found" has disapeared...

Update2: people running 1.92 and having network connections issues can download the latest firmware 1.93 here (US version). Just put it on a memory card or a usb fat32 external disk