On Fri, 2008-06-13 at 21:54 -0700, Skunk Worx wrote:
> I see that my f9 installs have a grub kernel argument
> 'root=UUID={hex}'
>
> Could someone tell me a little about this? I've used things like
> root=/dev/VolGroup00/LogVol00 for seems like ages.
It's a unique ID for each partition. The system can tell one partition
apart from another, no matter what the volume label, or physical
location (e.g. /dev/hda). Meaning that you can always refer to a
partition by it's UUID, and get the right one, no matter where it's
connected.
> Does this impact things like disk cloning or jumbling packs between
> machines?
Yes. Depending on your needs, it makes life easier, or more difficult.
If you want to move a drive about, and not have it clash with other
drives using the same volume labels (e.g. having fights with two drives
both labelled as /home or both as LogVol00), then UUID is a great
benefit.
On the other hand, if you want to take /home from one box and re-use it
as /home in another box, you'll need to rewrite the fstab file to either
use labels, or change the UUID from the old to the new.
I can't see it being a problem if you're cloning a drive. An exact copy
of one drive should be an exact copy. So a clone should work as a drop
in replacement.
Though if you're cloning drives to turn a group of drives into an array,
something tells me that that's going about things in the wrong way.
> If so, is there a way to specify the older method in a kickstart file?
You can refer to them just the same as you did beforehand (device names,
volume labels, or volume groups).
> Also I know I can 'append' things in kickstart like "vga=791
> acpi=force reboot=b', but can I remove the 'rhgb quiet'?
"rhgb" is an *optional* graphical boot progress display. I found
booting quicker without the additional delay caused when this starts up.
And others have found they've had less graphic card driver problems
without it, too.
"quiet" is an *option* to hide some of the messages printed when the
system starts to boot.
--
[tim@localhost ~]$ uname -r
2.6.25.6-55.fc9.i686
Don't send private replies to my address, the mailbox is ignored. I
read messages from the public lists.
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