RUMP_SYSPUFFS(8) | System Manager's Manual | RUMP_SYSPUFFS(8)

# NAME

`rump_syspuffs` —
mount a puffs file server with a userspace puffs loop

# SYNOPSIS

`file-system PUFFS`
`pseudo-device putter`

`rump_syspuffs` | file_server arguments

# DESCRIPTION

The `rump_syspuffs` utility can be used to mount any puffs(3) file server so that the requests are passed through the kernel puffs code in userspace as well. Therefore the approximate callgraph looks a little like the following, where k and u denote code running in the kernel space and userspace, respectively: puffs vfs (k) → libpuffs (u) → p2k (u) → puffs vfs (u) → libpuffs (u) → file server (u). The response path is the same, but in reverse.

In its current state, `rump_syspuffs` is most useful as a proof of concept for file system distribution and for developing and debugging the kernel portion of puffs.

# EXAMPLES

Mount a file system with sshfs:
`rump_syspuffs mount_psshfs server.address /mnt`

Mount an ntfs file system using ntfs-3g (from pkgsrc/filesystems/fuse-ntfs-3g), set the default uid to 1323:

`rump_syspuffs ntfs-3g -o uid=1323 /path/to/filesystem /mnt`

# SEE ALSO

p2k(3), puffs(3), rump(3), puffs(4)

# HISTORY

The `rump_syspuffs` debugging utility first appeared in NetBSD 5.0.

June 9, 2009 | NetBSD 9.2