- '''FreeBSD''' ufs Default local file system (ufs2, based on BSD Fast Filesystem) defvs Keeps track of /dev files ext2 Linux ext2 file system (GNU-based) nfs Remote files ntfs Windows NT file system smbfs Samba file system portalfs Mount a process onto a directory kernfs Files containing various system information

- '''Linux''' ext3 Journaling, extent-based file system from ext2 ext2 Extent-based file system afs AFS client support for remote file sharing nfs Remote files coda Another networked file system procfs Processes, processors, buses, platform specifics reiserfs Journaling file system