Re: missing driver (AppleMacRiscPCI) at startup on G5
Re: missing driver (AppleMacRiscPCI) at startup on G5
- Subject: Re: missing driver (AppleMacRiscPCI) at startup on G5
- From: Al Ciplickas <email@hidden>
- Date: Wed, 19 Dec 2007 13:48:30 -0800
I think what may have happened is that the SATA disk got hit with
errors (there are hints of that). And it's possible that the usr/../
bootcache.plist file was unreadable (guessing). The system would
never come up after Monday am. So I reinstalled the 10.4 system and
hoped it would fix the missing/unreadable files (not really knowing
which files were in trouble). It still did not work. So I did a
compressed disk image of that partition (only one at that time) on to
another drive. After that, I zeroed out the disk (hoping bad blocks
would be disabled) and partitioned it into 2: one for a new system;
the other for the old partition's restore. I then installed 10.5 on
the new partition - everything worked fine. Later I restored the
image file to the 2nd partition. It appeared to be fine, but it
could never start up. So I asked for help and you were kind enough
to point me at a start. And that process lead me to the missing
usr/../bootcache.plist file. I tried to copy the 10.5 usr/../
bootcache.plist, but it compained about privileges and I hadn't turn
on Root yet. That will be my next attempt this pm. I'll let you
know what else I find - maybe it will work..
-Al-
On Dec 19, 2007, at 1:31 PM, Terry Lambert wrote:
This is the first time I have ever heard of it. I had assumed that
your problem was that you were building your own kernel, so the
KEXT cache was out of date relative to the kernel, and the driver
could not be loaded by the boot loader from the cache (it didn't
match the kernel), and without a PCI driver, you couldn't load the
PCI driver off disk.
-- Terry
On Dec 18, 2007, at 8:44 PM, Al Ciplickas wrote:
Thanks again, Terry. I tried the rebuild and the complaint was
that there was not a usr/../bootcache.plist (or something to that
effect). Can't imagine how that could have happened, since I was
not aware of that file. So I thought doing an 'upgrade' from an
Install DVD would solve the problem. No way. The upgrade
finished normally, but there was neither the bootcache.plist nor
the kextentions.cache (sp?) files. This is confusing, as I expect
a system upgrade to make all the necessary files to do a normal
startup. I will locate an active bootcache.plist from an existing
system partition and copy it to the usr/../ directory to see if it
will help me do the kextcache rebuild. Do you think this is an
anomaly for me or has this happened many times before and I should
file a radar report?
-Al-
On Dec 18, 2007, at 2:38 PM, Terry Lambert wrote:
You need to rebuild the KEXT cache, not the KEXT.
man kextcache
or
http://developer.apple.com
- Terry
On Dec 18, 2007, at 2:09 PM, Al Ciplickas wrote:
Thanks, Terry. I'll rebuild the KEXT. But forgot how at the
moment. Any hints?
-Al-
On Dec 18, 2007, at 1:25 PM, Terry Lambert wrote:
On Dec 18, 2007, at 12:00 PM, Al Ciplickas wrote:
This is a new one for me: G5 complains about
'com.apple.driver.AppleMacRiscPCI' missing in the startup from
'kld_load_from_memory()'. I got that using <cmd-V> at
startup. I used another system partition to look it the file
was there (in System/Library/Extensions/) and it was! So I
took out the kextensions.cache and its partner and tried
again: still got the same complaint. (By the way, it says
there are 1310 buffer headers and 1310 cluster IO buffer
header, if that matters.)
Do anyone know of something else to try? This is under OSX
10.4.10 as well as 10.4.2 (which I reloaded in hopes of
clearing up "lost" files).
Instead of removing the KEXT cache, rebuild it.
The error is indicating that it's unable to load it from the
cache that was loaded into memory by the boot loader.
It can't read it off the disk itself because it can't even talk
to the PCI bus on which the disk controller lives without this
KEXT loaded.
-- Terry
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