Correct way to bless a volume?
Correct way to bless a volume?
- Subject: Correct way to bless a volume?
- From: James Bucanek <email@hidden>
- Date: Thu, 28 Feb 2013 23:46:08 -0700
Greetings,
Short question: After copying all of the system files to a volume,
what's the recommended method of blessing it?
What I'm trying to do, and what I can't figure out:
I'm trying to resolve an issue with my backup software. When my
application restores a system volume, everything is good except that the
volume name doesn't always appear in the firmware picker.
Running the 'bless -bootefi' command seemed to fix this, at least for my
test volume, but I'm looking for a general solution.
I've tried working through the source for bless, but couldn't tease the
magic incantation from the source. (I wanted to build it and step
through the code, but I couldn't because I can't find all of the headers
the project depends on.)
Poking around the source, it would appear that -bootefi just writes the
file at /usr/standalone/i386/boot.efi. My restore process already writes
this file, so I don't think that's what's missing.
Further searching in the code I found functions like
BLSetDiskLabelForDevice() and BLSetOFLabelForDevice(), the comments for
which would indicate that they set the disk label that appears in the
firmware volume picker. These functions, however, don't seem to called
from anywhere, and they both appear to call a function named
BLUpdateBooter() to do their work, and the only version of
BLUpdateBooter() I can find is this one:
int BLUpdateBooter(BLContextPtr context, const char * device,
BLUpdateBooterFileSpec *specs,
int32_t specCount)
{
return 1;
}
Clearly, that function isn't doing anything useful.
Which really just brings me back to square one: After copying all of the
system files to a volume, what's the recommended method of blessing it?
James
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