Messages in this thread | | | From | Andreas Dilger <> | Subject | Re: Linux not adhering to BIOS Drive boot order? | Date | Wed, 17 Jan 2001 03:19:28 -0700 (MST) |
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Jeff writes: > David Woodhouse wrote: > > > > adilger@turbolinux.com said: > > > One reason why this may NOT ever make it into the kernel is that I > > > know "kernel poking at devices" is really frowned upon. > > > > A possible alternative is to specify drives by serial number. > > Currently mount(8) supports mounting by '-L <label>' and '-U <UUID>'. > Most modern mke2fs proggies will assign a UUID to each newly created > filesystem. For /etc/fstab, you can specify LABEL=xxx or UUID=xxx > instead of a device name.
> The one thing I don't know is... can the kernel mount the root fs if > only given the uuid?
You missed the context. I was referring to the 2.2.5? patch that allowed you to do exactly that - specify a kernel parameter "root=UUID:foo" or "root=LABEL:bar". I've re-worked it and will post after testing a bit. My only hesitation was that kernel probing is frowned upon. When UUID/LABEL support for devfs came up at the Miami Linux Storage Workshop, it was given the thumbs down.
If I get a chance I will also fix LILO to allow UUID/LABEL for root as well.
Cheers, Andreas -- Andreas Dilger \ "If a man ate a pound of pasta and a pound of antipasto, \ would they cancel out, leaving him still hungry?" http://www-mddsp.enel.ucalgary.ca/People/adilger/ -- Dogbert - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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