mount directories of partitions, not partitions possible?
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mount directories of partitions, not partitions possible?
Hi,
is it possible to mount a directory of a local hard disk, not the whole hard disk?
Something like:
/dev/hda1:/shared/xdir /somewhere/here auto defaults 0 0
You don't mount disks, you mount filesystems. The unit of a filesystem is typically a partition, though there are other variants. Directories are structures within a filesystem, and as such don't meet the requirement.
You can mount a device to a mountpoint. "device" means partition, floppy disk, etc. the device would have to have an entry in /dev.
Using bind, you can mount a directory to another directory (aka mountpoint). This assumes that the partition containing said directory is already mounted somewhere.
You cannot mount TO anything except a mountpoint (aka directory)
You cannot use bind to mount something prefixed with a /dev pathname--ie you can only mount directories to directories
You can mount a device to a mountpoint. "device" means partition, floppy disk, etc. the device would have to have an entry in /dev.
Using bind, you can mount a directory to another directory (aka mountpoint). This assumes that the partition containing said directory is already mounted somewhere.
You cannot mount TO anything except a mountpoint (aka directory)
You cannot use bind to mount something prefixed with a /dev pathname--ie you can only mount directories to directories
Well shiver me timbers. I just tried this and it worked.
The functionality of 'mount --bind' is the equivalent of just performing a symbolic or hard link, with two exceptions that I can think of:
- A 'mount --bind' will work for a chroot jail, while a symbolic link will not.
- A hard link will work for a chroot jail, but not if the link is to another filesystem.
Unless you need that specific functionality, links work just as well.
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