fuse-overlayfs(1) General Commands Manual fuse-overlayfs(1) (NAME) fuse-overlayfs - (SYNOPSIS) (mounting) fuse-overlayfs [-f] [-d] [-o OPTION[,OPTION2, ...]] mountpoint (unmounting) fusermount -u mountpoint (DESCRIPTION) fuse-overlayfs ( overlay) . (user namespace) . FUSE 4.18 . (OPTIONS) -f . -d, --debug, -o debug . -o lowerdir=low1[:low2...] : . . -o upperdir=upperdir (lowerdirs) . -o workdir=workdir fuse-overlayfs upperdir . -o uidmapping=UID:MAPPED-UID:LEN[,UID2:MAPPED-UID2:LEN2] -o gidmapping=GID:MAPPED-GID:LEN[,GID2:MAPPED-GID2:LEN2] UID/GID fuse-overlayfs / . -o squash_to_root (0:0) . -o squash_to_uid=uid -o squash_to_gid=gid uid gid . squash_to_root . -o static_nlink st_nlink 1 . NFS . stat 1 . -o noacl ACL FUSE. -o xino=off|auto|on st_ino fuse-overlayfs . fuse-overlayfs inode . inode . xino : xino=off inode . : inode inode . xino=auto name_to_handle_at(2) inode . name_to_handle_at(2) xino=off . inode . xino=on name_to_handle_at(2) . inode . name_to_handle_at(2) . inode . -o ino32_t st_ino . inode . . -h, --help FUSE. -V, --version fuse-overlayfs FUSE. UID GID (DYNAMIC UID AND GID MAPPING) fuse-overlayfs chown . chown . : $ stat -c %u:%g lower/a lower/b 0:0 1:1 : $ cat /proc/self/uid_map 0 1000 1 1 110000 65536 fuse-overlayfs : $ stat -c %u:%g merged/a merged/b 65534:65534 65534:65534 65534 (overflow ID) UID/GID . 0 1 . fuse-overlayfs : -o uidmapping=0:1000:1:1:110000:65536,gidmapping=0:1000:1:1:110000:65536 : $ stat -c %u:%g merged/a merged/b 0:0 1:1 . (SEE ALSO) fuse(8), mount(8), user_namespaces(7) (AVAILABILITY) fuse-overlayfs https://github.com/containers/fuse-overlayfs (GNU GENERAL PUBLIC LICENSE) . User Commands fuse-overlayfs(1)