SampleFilterScheme for Intel?
SampleFilterScheme for Intel?
- Subject: SampleFilterScheme for Intel?
- From: "Duane Murphy" <email@hidden>
- Date: Wed, 23 May 2007 13:17:51 -0700
Hi Folks,
Thanks for the debugging tips. Now for more detail because the debugging
isn't helping. :-(
I'm writing a file system filter scheme loosely based on
SampleFilterScheme. Unfortunately SampleFilterScheme appears to predate
GPT (Intel) boot drives.
I'd like to have my filter scheme attach to GPT volumes including the
system volume. I have been unable to make this happen with the
SampleFilterScheme.
I have modified the SampleFilterScheme to recognize the HFS partitions
of GPT drives. Including code overriding probe() to protect against
circular conditions (it advertises what it attaches too). This works
fine for non-system disks.
If I enable Local-Root including the attach/detachMediaObjectToDeviceTree
() code then the system hangs at startup. Verbose mode says "Waiting for
file system to mount" or something close. I don't see any logging from
the filter scheme at all, but clearly the system is unhappy.
Any clues? Has anyone successfully attached a filter scheme to a GPT
boot volume?
Thanks for any help,
...Duane
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