I set up kvm on a fresh install ubuntu server 18.04 on a 1TB disk. There is nothing else on the disk. Whether I use virt-manager or virsh on cli to create a pool, I always get a pool of 3.75GB screenshot of pool size The reason so little space is left in the pool is because I have an ubuntu server image there for the virtual server I am trying to create.
The default pool was created with 3.75GB and every new pool I create gets created with this size. I am trying to create a pool of 750GB for my virtual server, but cannot figure it out. I am never offered an option to specify pool size, only volume size, but that is restricted by pool size.I imagined that qemu would use all the free space on my disk by default for my pool. All the examples of setting up kvm virtual servers online have way bigger pools than me. What have I missed?
df -h
Filesystem Size Used Avail Use% Mounted on
udev 3.9G 0 3.9G 0% /dev
tmpfs 787M 1.2M 786M 1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv 3.9G 3.8G 0 100% /
tmpfs 3.9G 0 3.9G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/loop0 92M 92M 0 100% /snap/core/8592
/dev/sda2 976M 144M 765M 16% /boot
/dev/loop2 92M 92M 0 100% /snap/core/8689
tmpfs 787M 0 787M 0% /run/user/1000
fdisk -l
Disk /dev/loop0: 91.3 MiB, 95748096 bytes, 187008 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop2: 91.4 MiB, 95805440 bytes, 187120 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 8E855DDE-1DBD-41AC-9F1A-C6D5097E0016
Device Start End Sectors Size Type
/dev/sda1 2048 4095 2048 1M BIOS boot
/dev/sda2 4096 2101247 2097152 1G Linux filesystem
/dev/sda3 2101248 1953521663 1951420416 930.5G Linux filesystem
Disk /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x08b44167
Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 4 GiB, 4294967296 bytes, 8388608 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
