NAME
e2fsadm - ext2 Filesystem / LVM administration
SYNOPSIS
e2fsadm [-d] [-h/?] { -l [+/-]LogicalExtentsNumber | -L [+/-]LogicalVolumeSize[kKmMgGtT]} [-n] [-v] LogicalVolumePath
DESCRIPTION
e2fsadm allows resizing of a logical volume (see lvm(8), lvcreate(8)) containing an unmounted ext2 filesystem and then extending the filesystem by ext2resize(8) afterwards or reducing the filesystem first and then reducing the logical volume afterwards.
OPTIONS
- -d
-
Enables additional debugging output (if compiled with DEBUG).
- -h/?
-
Print a usage message on standard output and exit successfully.
- -l [+/-]LogicalExtentsNumber
-
Resize the filesystem/logical volume to the number of logical extents relative (with +/-) to the old size or absolute without it.
- -L [+/-]LogicalVolumeSize[kKmMgGtT]
-
Resize the filesystem/logical volume to the number of megabytes relative (with +/-) to the old size or absolute without it. A size suffix of k for kilobyte, m for megabyte, g for gigabyte or t for terabyte is optional.
- -n
-
Avoid the filesystem check before the resize operation. A filesystem check is mandatory before ext2resize(8). Usefull, if a check has been done before starting e2fsadm.
- -v
-
Gives verbose runtime information about e2fsadm's activities.
DIAGNOSTICS
e2fsadm uses e2fsck(8), lvextend(8), lvreduce(8) and ext2resize(8) internal. It returns an exit state 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 existing 8 the filesystem is mounted 9 the filesystem type is not ext2 10 the e2fsck(8) command is missong or was not found 11 ext2resize(8) is missing or was not found 12 unable to run e2fsck(8) 13 unbale to run ext2resize(8) 14 an error occured while reading 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 ext2resize(8). You might set it to eg resize2fs(8) if you have it. It is called with the options set in E2FSADM_RESIZE_OPTS, the block device name, and the number of ext2 filesystem blocks.
- E2FSADM_RESIZE_OPTS
-
Options for the EXT2_RESIZE_CMD. Defaults to nothing. If you are using resize2fs(8), you will want to set this to -p.
See also
lvm(8), lvcreate(8), lvextend(8), lvreduce(8), ext2resize(8)
AUTHOR
Heinz Mauelshagen <[email protected]>