Re: [Xen-users] forcing disk in read only also if mounted

["Henning Sprang" <henning_sprang@xxxxxx>]

On 1/15/07, Daniele Palumbo <daniele@xxxxxxxxxxxx> wrote:
> hi.
>
> i am using xen 3.0.4, and i have to setup a disk for all my domUs, that
> contains kernel modules.
Seems like a good idea for managing them centrally!

> i want a volume, in read only, that does not need to know anything about xen.
> i tried "r!" in config file, but it is not a valid flag (BTW, IMHO it should
> be, like w!).
I don't understand what the problem is:
"r" (without exclamation mark!) should work in disk parameters for vm
config. It works at least for cdroms, did not try much for normal
filesystems.

So, you can configure something like
'phy:/dev/vm-filesystems/common-kernel-modules-partition,hda1,r' for
all systems, and mount hda1 to /lib/modules.

Please show us your disk config and the error it produces.

Henning



> i can't use w!, cause i want that volume in read only (and keep safe my
> modules)
>
> the solutions, by now, is to keep mounted in dom0 in read only that partition,
> and remount it to rw when needed (modules upgrade)
> but it is not a solutions.
>
> how can i resolve?
> i really have to ask for "r!", or there is something like that?
>
> thanks
> Daniele
>
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--
Henning Sprang -
http://www.sprang.de - http://faiwiki.informatik.uni-koeln.de
jabber: henning@xxxxxxxxxxxxx

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