[linux-lvm] How do I properly backup and restore / on LVM2
Sébastien Roy
sroy.tcs at gmail.com
Tue Apr 13 10:30:35 UTC 2010
Hello,
Maybe you can try
lvcreate -L 2.5g -s -n rsnap /dev/rootvg/rootlv
Already faced this kind of situation on previous RH releases (4.3 ?) where
/dev/mapper could not (yet) be used with some LVM commands.
2010/4/13 Alan Pek <alan.pek at db.com>
>
> Hi Folks,
>
> Read through the doc and tried to create a snapshot lv for rootlv by doing,
> but failed.
>
> singmrecfp1001:~ # lvcreate -L 2.5g -s -n rsnap rootvg
> Path required for Logical Volume "rootvg"
> The origin name should include the volume group.
> lvcreate: Create a logical volume
> lvcreate
> [-A|--autobackup {y|n}]
> [--addtag Tag]
> [--alloc AllocationPolicy]
> [-C|--contiguous {y|n}]
> [-d|--debug]
> [-h|-?|--help]
> [-i|--stripes Stripes [-I|--stripesize StripeSize]]
> {-l|--extents LogicalExtentsNumber |
> -L|--size LogicalVolumeSize[kKmMgGtT]}
> [-M|--persistent {y|n}] [--major major] [--minor minor]
> [-m|--mirrors Mirrors]
> [-n|--name LogicalVolumeName]
> [-p|--permission {r|rw}]
> [-r|--readahead ReadAheadSectors]
> [-R|--regionsize MirrorLogRegionSize]
> [-t|--test]
> [--type VolumeType]
> [-v|--verbose]
> [-Z|--zero {y|n}]
> [--version]
> VolumeGroupName [PhysicalVolumePath...]
>
> lvcreate -s|--snapshot
> [-c|--chunksize]
> [-A|--autobackup {y|n}]
> [--addtag Tag]
> [--alloc AllocationPolicy]
> [-C|--contiguous {y|n}]
> [-d|--debug]
> [-h|-?|--help]
> [-i|--stripes Stripes [-I|--stripesize StripeSize]]
> {-l|--extents LogicalExtentsNumber |
> -L|--size LogicalVolumeSize[kKmMgGtT]}
> [-M|--persistent {y|n}] [--major major] [--minor minor]
> [-n|--name LogicalVolumeName]
> [-p|--permission {r|rw}]
> [-r|--readahead ReadAheadSectors]
> [-t|--test]
> [-v|--verbose]
> [--version]
> OriginalLogicalVolume[Path] [PhysicalVolumePath...]
>
>
> singmrecfp1001:~ # lvcreate -L 2.5g -s -n rsnap /dev/mapper/rootvg-rootlv
> Volume group "mapper" doesn't exist
>
> singmrecfp1001:~ # lvcreate -L 2.5g -s -n rsnap /dev/md1
> "/dev/md1": Invalid path for Logical Volume
> The origin name should include the volume group.
> lvcreate: Create a logical volume
>
> lvcreate
> [-A|--autobackup {y|n}]
> [--addtag Tag]
> [--alloc AllocationPolicy]
> [-C|--contiguous {y|n}]
> [-d|--debug]
> [-h|-?|--help]
> [-i|--stripes Stripes [-I|--stripesize StripeSize]]
> {-l|--extents LogicalExtentsNumber |
> -L|--size LogicalVolumeSize[kKmMgGtT]}
> [-M|--persistent {y|n}] [--major major] [--minor minor]
> [-m|--mirrors Mirrors]
> [-n|--name LogicalVolumeName]
> [-p|--permission {r|rw}]
> [-r|--readahead ReadAheadSectors]
> [-R|--regionsize MirrorLogRegionSize]
> [-t|--test]
> [--type VolumeType]
> [-v|--verbose]
> [-Z|--zero {y|n}]
> [--version]
> VolumeGroupName [PhysicalVolumePath...]
>
> lvcreate -s|--snapshot
> [-c|--chunksize]
> [-A|--autobackup {y|n}]
> [--addtag Tag]
> [--alloc AllocationPolicy]
> [-C|--contiguous {y|n}]
> [-d|--debug]
> [-h|-?|--help]
> [-i|--stripes Stripes [-I|--stripesize StripeSize]]
> {-l|--extents LogicalExtentsNumber |
> -L|--size LogicalVolumeSize[kKmMgGtT]}
> [-M|--persistent {y|n}] [--major major] [--minor minor]
> [-n|--name LogicalVolumeName]
> [-p|--permission {r|rw}]
> [-r|--readahead ReadAheadSectors]
> [-t|--test]
> [-v|--verbose]
> [--version]
> OriginalLogicalVolume[Path] [PhysicalVolumePath...]
>
>
> singmrecfp1001:~ #
>
>
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