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User Mode Linux by Dike Jeff

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Appendix B. UML Utilities Reference

humfsify

humfsify makes an existing directory structure mountable as a humfs filesystem. The directory hierarchy must have been copied to the data subdirectory of the current working directory with all file and directory ownerships and permissions preserved. The common usage of this would be to convert a ubd filesystem image into a humfs filesystem by loopback-mounting the image, copying it to ./data, and invoking humfsify.

humfsify has the following usage:

humfsify user group size

user is a user ID, which can be a username or numeric user ID.

group is a group ID, which can be a group name or numeric group ID.

size is the size of the humfs filesystem, specified as a number of bytes, with the K, M, and ...

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