I'm trying to extend a logical volume and I'm doing as follow: 1- Run `fdisk -l` command and this is the output: Disk /dev/sda: 85.9 GB, 85899345920 bytes 255 heads, 63 sectors/track, 10443 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00054fc6 Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 10444 83371008 8e Linux LVM Disk /dev/mapper/vg_devserver-lv_swap: 4194 MB, 4194304000 bytes 255 heads, 63 sectors/track, 509 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/mapper/vg_devserver-lv_root: 27.5 GB, 27523022848 bytes 255 heads, 63 sectors/track, 3346 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 2- Run `fdisk /dev/sda`and print partition using `p`: Disk /dev/sda: 85.9 GB, 85899345920 bytes 255 heads, 63 sectors/track, 10443 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00054fc6 Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 10444 83371008 8e Linux LVM Try to create the partition by running: Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 3 No free sectors available I also check the free available space using vgdisplay and watching the Free PE / Size part near the end and seems like I've free space available (Free PE / Size 7670 / 29.96 GiB) so I tried to extend the LV by using the command:lvextend -L+29G /dev/vg_devserver/lv_root but I got some errors and don't know where to go from here. The first error I see at console is this /dev/root: read failed after 0 of 4096 at 27522957312: Input/output error /dev/root: read failed after 0 of 4096 at 27523014656: Input/output error Couldn't find device with uuid vSbuSJ-o1Kh-N3ur-JYkM-Ktr4-WEO2-JWe2wS. Cannot change VG vg_devserver while PVs are missing. Consider vgreduce --removemissing. Then following the suggestion from the previous command results I run this other command vgreduce --removemissing vg_devserver but again got this error: WARNING: Partial LV lv_root needs to be repaired or removed. There are still partial LVs in VG vg_devserver. To remove them unconditionally use: vgreduce --removemissing --force. Proceeding to remove empty missing PVs. so I change the command to the one suggested but once again another message Removing partial LV lv_root. Logical volume vg_devserver/lv_root contains a filesystem in use. so at this point I don't know what else to do,can any give me some ideas or help? Don't kill me if is something basic I'm not a Linux Admin or a Linux Advanced User just a developer trying to setup their development environment. How I can get this done? What I'm doing wrong? I'm following [this][1] guide because my filesytem is Ext4. Also [this][2] is helpful too but applies to Ext3 only [1]: http://www.uptimemadeeasy.com/vmware/grow-an-ext4-filesystem-on-a-vmware-esxi-virtual-machine/ [2]: http://kb.vmware.com/selfservice/search.do?cmd=displayKC&docType=kc&docTypeID=DT_KB_1_1&externalId=1006371