How-To Make the root filesystem read-only
Introduction
There are several reasons why you might want to make your root file system read only. I wanted to have a system on a flash disk, and since flash disks are damaged after repeated read-write circles the read-only root is a very nice solution. Other reasons why you would want to make your root partition read only include:
- If you want maximum security for your server, and want it to boot from a read only medium (i.e. a CD-ROM)
- If you want to make your own live-cd
- To avoid that power loss or system crash damage the root partition.
- If you want to mount the same nfsroot on several thin clients
The following procedure is what i did to turn my SuSE 10.1 root file system to read-only. It should work on both earlier and later versions but i haven't tested it yet. There could be better/more elegant solutions, if you think that something is missing please fill free to edit this howto.
Acknowledgments
Some of the information on this howto where found here.
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