I am completely new to dealing with filesystems and disk. I have ssh access to a physical machine which has two physical disks I believe. When I do fdisk -l I get:root@206-166-40-41-os-compute:/home/prjdefault# fdisk -lDisk /dev/sda: 73.4 GB, 73372631040 bytes255 heads, 63 sectors/track, 8920 cylinders, total 143305920 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 1048576 bytesI/O size (minimum/optimal): 1048576 bytes / 1048576 bytesAlignment offset: 405504 bytesDisk identifier: 0x0001d370   Device Boot      Start         End      Blocks   Id  System/dev/sda1            2048   143296511    71647232   83  LinuxPartition 1 does not start on physical sector boundary.Disk /dev/sdb: 73.4 GB, 73372631040 bytes98 heads, 9 sectors/track, 162478 cylinders, total 143305920 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 1048576 bytesI/O size (minimum/optimal): 1048576 bytes / 1048576 bytesAlignment offset: 12288 bytesDisk identifier: 0x1f7aafb8   Device Boot      Start         End      Blocks   Id  System/dev/sdb1              24   143305919    71652948   8e  Linux LVMDisk /dev/mapper/vgroot-lvroot: 15.0 GB, 14998831104 bytes255 heads, 63 sectors/track, 1823 cylinders, total 29294592 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 1048576 bytesI/O size (minimum/optimal): 1048576 bytes / 1048576 bytesDisk identifier: 0x00000000Disk /dev/mapper/vgroot-lvroot doesn't contain a valid partition tableand df -h gives me:root@206-166-40-41-os-compute:/home/prjdefault# df -hFilesystem      Size  Used Avail Use% Mounted onudev             16G  4.0K   16G   1% /devtmpfs           3.2G  556K  3.2G   1% /run/dev/dm-0        14G  3.9G  9.1G  31% /none            4.0K     0  4.0K   0% /sys/fs/cgroupnone            5.0M     0  5.0M   0% /run/locknone             16G     0   16G   0% /run/shmnone            100M     0  100M   0% /run/userand pvdisplay -v : root@206-166-40-41-os-compute:/home/prjdefault# pvdisplay -v    Scanning for physical volume names  --- Physical volume ---  PV Name               /dev/sda1  VG Name               vgroot  PV Size               68.33 GiB / not usable 4.00 MiB  Allocatable           yes  PE Size               4.00 MiB  Total PE              17491  Free PE               13915  Allocated PE          3576  PV UUID               oxpDr3-ZVTm-IPd9-Lgfq-wrfA-Z64o-zRS25Z  --- Physical volume ---  PV Name               /dev/sdb1  VG Name               vgroot  PV Size               68.33 GiB / not usable 1.58 MiB  Allocatable           yes  PE Size               4.00 MiB  Total PE              17493  Free PE               17493  Allocated PE          0  PV UUID               psfXAo-HhvA-fl2S-RwA6-IuBX-pmRr-flej70As can be seen from output of df I am almost already using up all my disk space. I need to use this machine as a database, I have the database installed but while loading the database I hit out of space error so I had to delete everything and now I am trying to utilize all the disk space from LVM volumes but I cannot figure out how to do it. I tried following this tutorial but I did not know where to mount the new partition so it can add space to my home directory? My question might be unclear as I am not familiar with the filesystems jargon in linux.Edit: Also adding pvdisplay -m just in case, as well as vgs, lvs:root@206-166-40-41-os-compute:/home/prjdefault# pvdisplay -m  --- Physical volume ---  PV Name               /dev/sda1  VG Name               vgroot  PV Size               68.33 GiB / not usable 4.00 MiB  Allocatable           yes  PE Size               4.00 MiB  Total PE              17491  Free PE               13915  Allocated PE          3576  PV UUID               oxpDr3-ZVTm-IPd9-Lgfq-wrfA-Z64o-zRS25Z  --- Physical Segments ---  Physical extent 0 to 3575:    Logical volume      /dev/vgroot/lvroot    Logical extents     0 to 3575  Physical extent 3576 to 17490:    FREE  --- Physical volume ---  PV Name               /dev/sdb1  VG Name               vgroot  PV Size               68.33 GiB / not usable 1.58 MiB  Allocatable           yes  PE Size               4.00 MiB  Total PE              17493  Free PE               17493  Allocated PE          0  PV UUID               psfXAo-HhvA-fl2S-RwA6-IuBX-pmRr-flej70  --- Physical Segments ---  Physical extent 0 to 17492:    FREEprjdefault@206-166-40-41-os-compute:~$ sudo vgs  VG     #PV #LV #SN Attr   VSize   VFree  vgroot   2   1   0 wz--n- 136.66g 122.69gprjdefault@206-166-40-41-os-compute:~$ sudo lvs  LV     VG     Attr      LSize  Pool Origin Data%  Move Log Copy%  Convert  lvroot vgroot -wi-ao--- 13.97g
Mount Physical volume to increase disk space
linux;ubuntu;lvm