gfs2_convert is used to convert a filesystem from GFS1 to GFS2. Do not
attempt to convert a GFS1 filesystem which is not clean - the process
of conversion will reinitialise the journals. We highly recommend that
fsck.gfs
is run successfully before attempting to convert a filesystem. Many
of the on-disk structures are identical between GFS1 and GFS2, so
the conversion process updates the journals, a few items of incompatible
metadata (mostly indirect pointers and inodes) and adds the per-node
directories required by the gfs2meta filesystem. The conversion process
is performed in-place and does not require any extra disk space so that
it is possible to successfully convert a GFS1 filesystem that is
completely full.
Always ensure you have a complete backup of the data on any filesystem
before starting the conversion process.
OPTIONS
-h
Help.
This prints out the proper command line usage syntax.
-q
Quiet. Print less information while running.
-n
No to all questions.
-V
Print program Version information only.
Print out the current version name.
-v
Verbose operation.
Print more information while running.
-y
Yes to all questions.
By specifying this option, gfs2_convert will not prompt before making
changes.
EXAMPLE
gfs2_convert /dev/vg0/lvol0
This will convert the Global File System on the block device
"/dev/vg0/lvol0" to gfs2 format.