I installed CentOS on a Dell PowerEdge 860 with two 1TB hard drives in RAID1. This is a bare minimum install. I then installed Xen according to "Paravirtualization With Xen On CentOS 5.4 (x86_64)". Here is the output from vgdisplay and lvdisplay: Code: [root@serenity ~]# vgdisplay /dev/hda: open failed: No medium found --- Volume group --- VG Name VolGroup00 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 3 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 1 Act PV 1 VG Size 931.22 GB PE Size 32.00 MB Total PE 29799 Alloc PE / Size 29799 / 931.22 GB Free PE / Size 0 / 0 VG UUID Pt8lYt-vBDe-BGHH-82ee-S1qI-Rc7q-ZfKw0y [root@serenity ~]# lvdisplay /dev/hda: open failed: No medium found --- Logical volume --- LV Name /dev/VolGroup00/LogVol00 VG Name VolGroup00 LV UUID dNRrkh-cgaZ-ak68-wcXY-wydS-xGIV-taAOJl LV Write Access read/write LV Status available # open 1 LV Size 921.47 GB Current LE 29487 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:0 --- Logical volume --- LV Name /dev/VolGroup00/LogVol01 VG Name VolGroup00 LV UUID s6effT-hVcu-ICBP-NL18-2yoh-Dvba-76A5fA LV Write Access read/write LV Status available # open 1 LV Size 9.75 GB Current LE 312 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:1 This is what happens when I try to create my first LVM-based VM. Code: [root@serenity ~]# lvcreate -L10G -n vm01 VolGroup00 /dev/hda: open failed: No medium found Insufficient free extents (0) in volume group VolGroup00: 320 required I know I did something wrong somewhere. Please point me in the right direction. Thank you, Chris
There'S no free space left in VolGroup00 because it is used up by the volumes LogVol00 and LogVol01. You can try to resize the volumes as described in this tutorial: http://www.howtoforge.com/linux_lvm
