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Dear list, |
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|
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I want to build up a NFS share for several host. |
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The base system is always equal, only some files are different (files in |
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/etc and /var, maybe more). |
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|
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The structure should look like: |
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Base system is on /basesystem |
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|
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Then I want a directory for every host: |
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/nfsroot/host1 |
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/nfsroot/host2 |
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.. |
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/nfsroot/hostn |
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|
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Client 1 will boot via lan and mount the /nfsroot/host1 via NFS. |
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On the server the mount could look like: |
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mount -t nullfs /basesystem /nfsroot/host1 |
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mount -t nullfs /basesystem /nfsroot/host2 |
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|
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If the host1 changes now a file the changed file is not stored in |
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/basesystem but in /nfsroot/host1. |
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(so you can think about a filesystem in two layers, the ground layer is |
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/basesystem and readonly, changes will go to /nfsroot/hostn) |
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|
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If i upgrade the /basesystem all files should be available for all hosts |
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expect the files the host changed by itself (they are stored in the |
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nfsroot/hostn directory). |
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|
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In FreeBSD there is a file system available called nullfs which could be |
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used for this. |
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Is there a similar filesystem for Linux available, too? |
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|
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Thanks, |
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Matthias |
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|
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-- |
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"Programming today is a race between software engineers striving to |
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build bigger and better idiot-proof programs, and the universe trying to |
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produce bigger and better idiots. So far, the universe is winning." -- |
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Rich Cook |
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