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Linux LVM: Create LV(Logical Volume) using all available space in the volume group
https://forum.ivorde.com/linux-lvm-create-lv-logical-volume-using-all-available-space-in-the-volume-group-t16191.html
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Author:  mandrei99 [ Wed Jan 29, 2014 6:57 am ]
Post subject:  Linux LVM: Create LV(Logical Volume) using all available space in the volume group

From 'man lvcreate':
Quote:
lvcreate [-l|--extents LogicalExtentsNumber[%{VG|FREE|ORIGIN}


Below is a command to create a logical volume that spans the whole free space in the VolumeGroup
Code:
# vgs
  VG     #PV #LV #SN Attr   VSize   VFree 
  rootVG   1   2   0 wz--n-  20.00g      0
  vmVG     1   0   0 wz--n- 128.81g 128.81g
# lvs
  LV     VG     Attr       LSize  Pool Origin Data%  Move Log Cpy%Sync Convert
  rootLV rootVG -wi-ao---- 18.55g                                             
  swapLV rootVG -wi-ao----  1.44g


# lvcreate vmVG -n vmLV -l 100%FREE
  Logical volume "vmLV" created
# vgs
  VG     #PV #LV #SN Attr   VSize   VFree
  rootVG   1   2   0 wz--n-  20.00g    0
  vmVG     1   1   0 wz--n- 128.81g    0
# lvs
  LV     VG     Attr       LSize   Pool Origin Data%  Move Log Cpy%Sync Convert
  rootLV rootVG -wi-ao----  18.55g                                             
  swapLV rootVG -wi-ao----   1.44g                                             
  vmLV   vmVG   -wi-a----- 128.81g             

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