From: Fermin G. M. <ga...@di...> - 2003-02-13 15:07:46
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On Wed, 12 Feb 2003, William Stearns wrote: > Good day, Fermin, >=20 > On Wed, 12 Feb 2003, Fermin Galan Marquez wrote: >=20 > > b) Is posible mounting a COWed filesystem (to get access to files fro= m > > the host enviroment before booting UML)? The usual 'mount -o loop' > > command doen't work on the private COW file. >=20 > Not directly. You can combine the cow file with its backing file=20 > using the uml_moo utility, and the resulting file can be mounted on the= =20 > host. Unfortunatelly, uml_moo it's not suitable for my aplication. Currently, I'm using UML to build=20 network simulations usign several virtual machines, following these steps: a) Setting a master filesystem (it will be not booted). b) Make as many copies of the master filesystem as UMLs needed. c) Mount those filesystem to configure and tune each UML (for example, /etc/sysconfig/network to established netwrok configuration, different in each UML). d) Boot all UMLs. Currently, step b) takes a lot of time and=20 store space (master filesystem is about=20 650 Mbytes and I use an average of 20 UMLs),=20 so I wonder if using COW these costs could be=20 reduced. But, for the answers to my previous=20 questions, COW filesystems can't be mounted=20 to be configured (step c). Anyone is (was) working on something similar? I would like to heard experiences... Thanks in advance! ------- Ferm=EDn DIT UPM |