Re-naming partitions

[crabhunter]

Hi, can someone help me with the syntax for re-naming partitions in com.apple.Boot.plist
I have found the following in the documentation.

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"Rename Partition" Rename partition(s) for the boot menu.
=hd(x,y) <alias>[;hd(m,n) <alias2> ...]
So lets say I want to rename hd(0,3) to say Ubuntu instead of showing up as Linux I create a

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<key>Rename Partition</key>
<string>hd(0,3) <Ubuntu>[;hd(?,?)]</string>
Does Ubuntu need to be between <> ? and do the m and n have to be 0,3 as well?
I'm afraid to just try it in case I can't boot afterwards.
Mike

[Azimutz]

Crabhunter, you don't need to rename it with Chameleon; just boot Ubuntu and use it's Disk Utility to set a label to it's volume

[crabhunter]

I've heard that breaks the mbr and takes a lot of recovery, is that right?
Mike

[kulfon77]

No, it doesn't, I've just done it.
The only problem i had was that I had to re-add music to iTunes 

[Azimutz]

I did it one of these days and had no problems. It's just renaming a volume, can't see why it would mess the MBR.

[crabhunter]

Well I've tried disk utility without success,
let me explain, this is a triple boot set-up on a dell netbook on a single hard drive with a hybrid mbr/guid partition table.
Disk utility now shows the partition as named Ubuntu but neither osx, chameleon or windows7 can see the label.
I have changed the label both in the option filesystem label and edit partitions, I have tried ticking required/firmware but as yet have not tried to change the type of the partition.
Changing the type might be what I have been warned about.
Any other ideas?
Mike

[crabhunter]

Well it did mess up my mbr, although I could still boot osx and Ubuntu windows would not boot.
I had to use gptsync to fix the mbr then diskpart to set osx back to active.
And it still shows up as Linux
Still no news on how to use rename in chameleon though,
Mike

[Azimutz]

Ok... about labeling Linux partitions, i can assure it works at least on Ubuntu installed to MBR scheme, on ext4 file system.
About multibooting OS X with Windows and Linux on the mix on a GPT   scheme, for me it's asking for troubles like the one you just faced; neither Windows or Linux are prepared to live on GPT and it's pretty easy to get the partition tables out of sync.

Now, about renaming partitions, this

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<key>Rename Partition</key>
<string>hd(0,3) Ubuntu</string>should work, though i never tried it on a volume without label.
This

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<key>Rename Partition</key>
<string>Ubunto UbuntuX</string>works for me and this
<key>Rename Partition</key>
<string>"Mac OS X Install DVD" "OS X Install";Ubuntu "Ubuntu X"</string>
and this is how you handle it, when using labels with spaces and renaming multiple volumes.

Hope it helps