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Absolute FreeBSD, 2nd Edition by Michael W. Lucas

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Using Foreign Filesystems

For our purposes, any partition or disk that isn't FFS is a foreign filesystem. FreeBSD includes extensive support for foreign filesystems, with the caveat that only those functions supported by the filesystem work. Microsoft's FAT32 doesn't support filesystem permissions, for example, and Linux filesystems don't support BSD-style file flags.

Each foreign filesystem needs support in the FreeBSD kernel. To make your life a little easier, mount(8) automatically loads the proper kernel modules on demand.

To mount any foreign filesystem, you need the same information needed to mount an FFS filesystem: a device name and a mount point. You'll also need the type of filesystem, although you might figure that out by trial and error. ...

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