E2FSADM(8)						      System Manager's Manual							E2FSADM(8)

NAME

       e2fsadm - ext2 filesystem / LVM administration

SYNOPSIS

       e2fsadm	[-d|--debug]  [-h|--help]  {[-l|--extents] [+|-]LogicalExtentsNumber|" [-L|--size] [+|-]LogicalVolumeSize[kKmMgGtT]} [-n|--nofsck]
       [-v|--verbose] [--version] LogicalVolumePath

DESCRIPTION

       e2fsadm allows resizing of a logical volume containing a mounted or unmounted ext2 filesystem.  For unmounted filesystems it can extend the
       logical	volume	and  grow  the filesystem using resize2fs(8) or ext2resize(8), or shrink the filesystem and then reduce the logical volume
       afterwards.  For mounted filesystems it can extend the logical volume and grow the filesystem using ext2online(8).

   OPTIONS
       -d, --debug
	      Enables additional debugging output (if compiled with DEBUG).

       -h, --help
	      Print a usage message on standard output and exit successfully.

       -l, --extents [+|-]LogicalExtentsNumber
	      Resize the filesystem/logical volume to or by the number of logical extents.  If you use + or - then the number will be relative the
	      th current size of the logical volume, otherwise the volume will be resized to LogicalExtentsNumber extents.

       -L, --size [+|-]LogicalVolumeSize[kKmMgGtT]
	      Resize  the  filesystem/logical  volume to or by the given size.	If you use + or - then the number will be relative the the current
	      size of the logical volume, otherwise the volume will be resized to LogicalVolumeSize.  A size suffix of	K  for	kilobytes,  M  for
	      megabytes, G for gigabytes or T for terabytes can be used.

       -n, --nofsck
	      Avoid  the  filesystem  check before the resize operation.  A filesystem check is mandatory before resize2fs(8), but is optional for
	      ext2resize(8), and is not allowed for ext2online(8) because the filesystem is mounted.  Useful if  a  check  has	been  done  before
	      starting e2fsadm.

       -t, --test
	      Test run without real resizing.

       -v ,  --verbose
	      Gives verbose runtime information about e2fsadm's activities.

       --version
	      Print version number and exit successfully.

DIAGNOSTICS

       e2fsadm	calls  e2fsck(8), lvextend(8), lvreduce(8), and resize2fs(8), ext2resize(8), or ext2online(8) internally.  By default, for mounted
       filesystems e2fsadm will look for resize2fs first, and failing that it will look for ext2resize.  For mounted filesystems it  will  try	to
       run ext2online.	It returns an exit code of 0 for success or > 0 for error:

       1  the filesystem size is invalid
       2  the logical volume name is missing
       3  the logical volume name is invalid
       4  the logical volume doesn't exist
       5  an error occured while reading the VGDA
       6  an error occured while resizing the filesystem
       7  /proc/mounts is not available
       8  the filesystem is mounted
       9  the filesystem type is not ext2
       10 the e2fsck(8) command is missing or was not found
       11 resize2fs(8) is missing or was not found
       12 unable to run e2fsck(8)
       13 unable to run resize2fs(8)
       14 an error occured while reading the logical volume
       15 logical volume size error
       16 lvextend(8) is missing or was not found
       17 unable to run lvextend(8)
       18 lvreduce(8) is missing or was not found
       19 unable to run lvreduce(8)

       95 driver/module not in kernel
       96 invalid I/O protocol version
       97 error locking logical volume manager
       98 invalid lvmtab (run vgscan(8))
       99 invalid command line

ENVIRONMENT VARIABLES

       E2FSADM_RESIZE_CMD
	      Command to call instead of resize2fs(8).

       E2FSADM_RESIZE_OPTS
	      Options for the EXT2_RESIZE_CMD.

       E2FSADM_ONLINE_CMD
	      Command to call instead of ext2online(8).

       E2FSADM_ONLINE_OPTS
	      Options for the EXT2_ONLINE_CMD.

SEE ALSO

       lvm(8), lvcreate(8), lvextend(8), lvreduce(8), resize2fs(8), ext2resize(8), ext2online(8)

AUTHOR

       Heinz Mauelshagen <Linux-LVM@Sistina.com>

Heinz Mauelshagen						     LVM TOOLS								E2FSADM(8)