I've been trying for the past couple weeks to install Zephyroth 10.5.2 Rev 2 for AMD. I had it installed once and it was running quite well until I stupidly installed the iPhone SDK, which trashed my install. I've never been able to get it installed again and don't understand why I can't duplicate what was successful before. I can get everything installed on my external USB HD and can boot (MBR) from that drive. I can get into single-user mode, but cannot bring up the system from that point on. Once I type "exit" to exit single user mode, this is what I'm getting?

Jettisoning kernel linker.
jnl: unknown-dev: flushing fs disk buffer returned 0x5
jnl: unknown-dev: flushing fs disk buffer returned 0x5
jnl: unknown-dev: flushing fs disk buffer returned 0x5
jnl: unknown-dev: flushing fs disk buffer returned 0x5
jnl: unknown-dev: flushing fs disk buffer returned 0x5
jnl: unknown-dev: flushing fs disk buffer returned 0x5
CODE SIGNING: cs_invalid_page p:35[loginwindow] clearing CS_VALID
CODE SIGNING: cs_invalid_page p:35[mds] clearing CS_VALID
jnl: unknown-dev: flushing fs disk buffer returned 0x5
unknown SIGSEGV code 0

And that's the end. No more messages and can't do anything at this point.

Anyone have any suggestions on how I can debug this and proceed?

Thanks.