diff options
Diffstat (limited to 'sys-utils/mount.8')
| -rw-r--r-- | sys-utils/mount.8 | 44 |
1 files changed, 38 insertions, 6 deletions
diff --git a/sys-utils/mount.8 b/sys-utils/mount.8 index add9818fa..7fd38df44 100644 --- a/sys-utils/mount.8 +++ b/sys-utils/mount.8 @@ -458,14 +458,11 @@ of that mount such that mounts and umounts within any of the mirrors propagate to the other mirror. A slave mount receives propagation from its master, but any not vice-versa. A private mount carries no propagation abilities. A unbindable mount is a private mount which cannot be cloned through a bind -operation. Detailed semantics is documented in Documentation/filesystems/sharedsubtree.txt +operation. Detailed semantics is documented in +.B Documentation/filesystems/sharedsubtree.txt file in the kernel source tree. -Note that Linux kernel does not allow to change more propagation flags by one -.BR mount (2) -syscall and the flags cannot be mixed with another mount options. It means that -more --make-* options cannot be used together or with another mount options. - +Supported operations: .RS .nf .BI "mount --make-shared " mountpoint @@ -486,6 +483,41 @@ mounts under a given mountpoint. .BI "mount --make-runbindable " mountpoint .fi .RE + +.BR mount (8) +.B does not read +.BR fstab (5) +when --make-* operation is requested. All necessary information has to be +specified on command line. + +Note that Linux kernel does not allow to change more propagation flags by one +.BR mount (2) +syscall and the flags cannot be mixed with another mount options. + +Since util-linux 2.23 mount command allows to use more propagation flags +together and with another mount operations. This feature is EXPERIMENTAL. In +this case the propagation flags are applied by additional mount(2) syscalls +after previous successful mount operation. Note that this use case is not +atomic. The propagation flags is possible to specified in +.BR fstab (5) +as mount options +(private,slave,shared,unbindable,rprivate,rslave,rshared,runbindable). + +For example +.RS +.nf +.BI "mount --make-private --make-unbindable /dev/sda1 /A" +.fi +.RE + +is the same as +.RS +.nf +.BI "mount /dev/sda1 /A" +.BI "mount --make-private /A" +.BI "mount --make-unbindable /A" +.fi +.RE .RE .SH COMMAND LINE OPTIONS |