mount
=====

::

   NAME
     mount - mounted filesystem data

   SYNOPSIS
     mount [-f][-i] [-n pid|task] [mount|vfsmount|superblock|dev|dir|dentry|inode]

   DESCRIPTION
     This command displays basic information about the currently-mounted
     filesystems.  The per-filesystem dirty inode list or list of open
     files for the filesystem may also be displayed.

        -f  dump dentries and inodes for open files in each filesystem; only
            supported on kernels prior to Linux 3.13.
        -i  dump all dirty inodes associated with each filesystem; only
            supported on kernels prior to Linux 2.6.32.

     For kernels supporting namespaces, the -n option may be used to
     display the mounted filesystems with respect to the namespace of a
     specified task:

        -n pid   a process PID.
        -n task  a hexadecimal task_struct pointer.

     Specific filesystems may be selected using the following forms:

       vfsmount  hexadecimal address of a filesystem vfsmount structure.
          mount  hexadecimal address of a filesystem mount structure (Linux 3.3
                 and later).
     superblock  hexadecimal address of a filesystem super_block structure.
            dev  device name of a filesystem.
            dir  directory where a filesystem is mounted.
         dentry  hexadecimal address of an open dentry of a filesystem.
          inode  hexadecimal address of an open inode of a filesystem.

     The first column of the command output displays the filesystem's vfsmount
     structure address for kernels prior to Linux 3.3.  For Linux 3.3 and later
     kernels, the first column displays the filesystem's mount structure address,
     which contains an embedded vfsmount structure.

   EXAMPLES
     Display mounted filesystem data:

       crash> mount
       VFSMOUNT SUPERBLK TYPE   DEVNAME   DIRNAME
       c0089ea0 c0088a00 ext2   /dev/root /    
       c0089cf0 c0088c00 proc   /proc     /proc
       c0089e10 c0088800 ext2   /dev/sda5 /boot
       c0089d80 c0088600 ext2   /dev/sda6 /usr
       c0089f30 c0088400 devpts none      /dev/pts
       c3f4b010 c0088200 ext2   /dev/sda1 /home

     On Linux 3.3 and later kernels, the filesystem's mount structure address
     is shown:

       crash> mount
            MOUNT           SUPERBLK     TYPE   DEVNAME   DIRNAME
       ffff880212fb8200 ffff880212fc0800 rootfs rootfs    /   
       ffff88020ffbea00 ffff880212fc2000 proc   proc      proc
       ffff880211db7f00 ffff88020e01a800 sysfs  sysfs     /sys
       ffff88020ffe1300 ffff880212a40000 devtmpfs devtmpfs /dev
       ffff88020ff15000 ffff880212bbc800 devpts devpts    /dev/pts
       ffff88020e542800 ffff88020e62b800 tmpfs  tmpfs     /dev/shm
       ...

     Display the open files associated with each mounted filesystem:

       crash> mount -f
       VFSMOUNT SUPERBLK TYPE   DEVNAME   DIRNAME
       c7fb2b80 c7fb3200 ext2   /dev/root /
       OPEN FILES:
        DENTRY    INODE    TYPE  PATH
       c6d02200  c6d0f7a0  REG   usr/X11R6/lib/libX11.so.6.1
       c6d02100  c6d0f9e0  REG   usr/X11R6/lib/libXext.so.6.3
       c6d02000  c6d0fc20  REG   usr/X11R6/lib/libICE.so.6.3
       c6d02680  c6d0f320  REG   usr/X11R6/bin/xfs
       c7106580  c70c5440  CHR   dev/psaux
       ...

     Display the dirty inodes associated with each mounted filesystem:

       crash> mount -i
       VFSMOUNT SUPERBLK TYPE   DEVNAME   DIRNAME
       c0089ea0 c0088a00 ext2   /dev/root /
       DIRTY INODES
       c7ad4008
       c2233438
       c72c4008
       c7d6b548
       c3af1a98
       c7d6b768
       c3c4e228
       ...

     Display the mounted filesystem containing inode c5000aa8:

       crash> mount c5000aa8
       VFSMOUNT SUPERBLK TYPE   DEVNAME   DIRNAME
       c0089f30 c0088600 ext2   /dev/sda6 /usr 

     Display the mounted filesystem containing inode ffff8801f4245e40:

       crash> mount ffff8801f4245e40
            MOUNT           SUPERBLK     TYPE   DEVNAME  DIRNAME
       ffff88020ffbea00 ffff880212fc2000 proc   proc     /proc