Section 8 · System administration
vdoreadonly.8
Package: vdo-support
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VDOREADONLY
NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLE
SEE ALSO
NAME
vdoreadonly − puts a VDO device into read-only mode
SYNOPSIS
vdoreadonly filename
DESCRIPTION
vdoreadonly forces an existing VDO device into read-only mode.
filename must be the path of the VDODataLV as described in lvmvdo(7). Since lvchange(8) will only mount that as read-only, a writable version of that device must be manually created, as shown in the example below.
OPTIONS
| −−help | Print this help message and exit. |
−−version
Show the version of vdoreadonly.
EXAMPLE
lvchange -ay vdo1/vdo0pool_vdata
dmsetup table vdo1-vdo0pool_vdata > vdata.table
lvchange -an vdo1/vdo0pool_vdata
dmsetup create vdo1-vdo0pool_vdata —table “‘cat vdata.table‘“
vdoreadonly /dev/mapper/vdo1-vdo0pool_vdata
dmsetup remove vdo1-vdo0pool_vdata
SEE ALSO
lvmvdo(7), lvchange(8), dmsetup(8)