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man page for grub-probe
From: |
ael |
Subject: |
man page for grub-probe |
Date: |
Thu, 24 Sep 2009 11:39:10 +0100 |
User-agent: |
Mozilla-Thunderbird 2.0.0.22 (X11/20090706) |
As a new potential user of grub2, even after scanning the grub2 wiki, I
find the man page for grub-probe incomprehensible.
1) -d, --device
given argument is a system device, not a path
Ok, so what does "system device" mean in this context? Maybe something
like (hdn,m) ? I can only guess from knowledge of legacy grub. What
about a new user who has never user any sort of grub? If there was a
reference at the end of the man page to other man pages or other places
where this is defined, it might be acceptable. Or maybe just a tiny
example such as
given argument is a system device, not a path, eg -d (hd1,2)
{I have no idea if the above is actually right which just emphasizes the
problem with the man page.}
2)
# grub-probe /dev/fd0
grub-probe: error: Cannot open `/boot/grub/device.map'
So how is the device map created? And is /boot/grub/device.map being
sought on the /dev/fd0 file system? Presumably not.
Again the man page gives no clue about where to look or what to do.
-m, --device-map=FILE
use FILE as the device map [default=/boot/grub/device.map]
needs to give a pointer for info.
3) -t, --target=(fs|fs_uuid|drive|device|partmap|abstraction)
print filesystem module, GRUB drive, system device,
partition
map module or abstraction module [default=fs]
So I tried
# grub-probe -v -t /dev/fd0 /dev/fd0
and just got:
Try ``grub-probe --help'' for more information
Of course, --help gave no help :-)
I could go on, but I hope that the point is clear. As a new user, who
even has a small amount of experience with several boot loaders, but who
only needs to look at them rather infrequently, I am lost here.
OK with lots of time and searching and probably needing to install and
read source, I will probably eventually fathom what is needed, but just
a few extra lines in the man page might make all of that unnecessary.
I would offer to a patch, if only I knew what those extra lines should
be :-)
ael
- man page for grub-probe,
ael <=