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umountall(8)

mountall(8)             System Administration Commands             mountall(8)

NAME
       mountall, umountall - mount, unmount multiple file systems

SYNOPSIS
       mountall [-F FSType] [-l | -r] [file_system_table]


       umountall [-k] [-s] [-F FSType] [-l | -r] [-n]  [-Z]


       umountall [-k] [-s] [-h host] [-n] [-Z]

DESCRIPTION
       mountall  is  used to mount file systems specified in a file system ta‐
       ble. The file system table must be in vfstab(5) format. If no file_sys‐
       tem_table is specified, /etc/vfstab is  used.  If  −  is  specified  as
       file_system_table,  mountall reads the file system table from the stan‐
       dard input. mountall mounts only those file systems with the  mount  at
       boot field set to yes in the file_system_table.


       For  each  file system in the file system table, the following logic is
       executed: if there  exists  a  file  /usr/lib/fs/FSType/fsckall,  where
       FSType  is the type of the file system, save that file system in a list
       to  be  passed  later,  and  all  at  once,   as   arguments   to   the
       /usr/lib/fs/FSType/fsckall   script.   The   /usr/lib/fs/FSType/fsckall
       script checks all of the file systems in its argument list to determine
       whether they can be safely mounted.  If  no  /usr/lib/fs/FSType/fsckall
       script exists for the FSType of the file system, the file system is in‐
       dividually  checked  using  fsck(8). If the file system does not appear
       mountable, it is fixed using fsck before the mount is  attempted.  File
       systems  with  a − entry in the fsckdev field are mounted without first
       being checked.


       umountall causes all mounted file systems in the  current  zone  except
       root,  /usr,  /var,  /var/adm,  /var/run,  /proc, and /dev/fd to be un‐
       mounted. If the FSType is specified, mountall and umountall limit their
       actions to the FSType specified. There is no guarantee  that  umountall
       unmounts busy file systems, even if the -k option is specified.

OPTIONS
       The following options are supported:

       -F         Specify  the  FSType of the file system to be mounted or un‐
                  mounted.


       -h host    Unmount all file systems listed in /etc/mnttab that are  re‐
                  mote-mounted from host.


       -k         Use the fuser  -k  mount-point command. See the fuser(8) man
                  page  for details. The -k option sends the SIGKILL signal to
                  each process using the file. As this option spawns kills for
                  each process, the kill messages might not  show  up  immedi‐
                  ately.  There  is  no guarantee that umountall unmounts busy
                  file systems, even if the -k option is specified.


       -l         Limit the action to local file systems.


       -n         List the actions that would be performed for  the  specified
                  options,  but do not actually execute these actions. Repeat‐
                  ing the command without the -n option  executes  the  listed
                  actions,  assuming that the /etc/mnttab file has not changed
                  in the interval prior to repeating the command.


       -r         Limit the action to remote file system types.


       -s         Do not perform the umount operation in parallel.


       -Z         Apply the action(s) only to the file systems mounted in non-
                  global zones. By default, umountall unmounts only file  sys‐
                  tems  mounted  in  the current zone. Option -Z is ignored if
                  used in a non-global zone.


FILES
       /etc/mnttab

           Mounted file system table


       /etc/vfstab

           Table of file system defaults


       /usr/lib/fs/FSType/fsckall

           Script called by mountall to perform the file system check  of  all
           file systems of type FSType


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:

       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ Availabilitysystem/core-os _ Interface StabilityCommit‐
       ted _ Output StabilityUncommitted


SEE ALSO
       mnttab(5), vfstab(5), attributes(7), fsck(8), fuser(8), mount(8)

DIAGNOSTICS
       No messages are printed if the file systems are mountable and clean.


       Error and warning messages come from fsck(8) and mount(8).

NOTES
       At this time, NFS is the only remote file system supported by  the  -l,
       -r, and -h options.

Oracle Solaris 11.4               23 Jun 2025                      mountall(8)
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