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所属分类：linux技术
今天为了编译ThingsBoard的源代码，发现原来给虚拟机分配的40个G不够用了。于是乎在VMWare Workstation中扩容了40G的磁盘空间。但是此时lvm是不会自动扩容的，因此我们需要手动调整下卷的配置。
首先df -h检查发现挂载的空间的确没有变化
mrchip@ubuntu22:~$ df -h Filesystem Size Used Avail Use% Mounted on tmpfs 791M 2.5M 788M 1% /run /dev/mapper/ubuntu--vg-ubuntu--lv 37G 35G 0 100% / tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock /dev/sda2 2.0G 253M 1.6G 14% /boot shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e80883038e918e14fc90c4519ecc708e642d079d7482ae9a0b78b456c0502ed3/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/baca760e9d9316152da7adb633a6bb05ab76e6cbfe1267bea951f1b3a9038c05/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e8f65d1e3aa83c67c5c55ae5e2bce0b87e905477d0a7dc20ee6fc15a47d2a2eb/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1d091959988cd36e8f71b01572a2e37e341238d263627d8eb839798c4dec86d9/shm tmpfs 791M 4.0K 791M 1% /run/user/1000 然后运行lsblk发现磁盘的确变大了
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS loop0 7:0 0 48.6M 1 loop /snap/cmake/1390 loop1 7:1 0 48.6M 1 loop /snap/cmake/1391 loop2 7:2 0 63.9M 1 loop /snap/core20/2182 loop3 7:3 0 63.9M 1 loop /snap/core20/2318 loop4 7:4 0 66.2M 1 loop /snap/core24/405 loop5 7:5 0 66.2M 1 loop /snap/core24/423 loop6 7:6 0 87M 1 loop /snap/lxd/27948 loop7 7:7 0 17.7M 1 loop /snap/helm/414 loop8 7:8 0 87M 1 loop /snap/lxd/28373 loop9 7:9 0 38.7M 1 loop /snap/snapd/21465 loop10 7:10 0 38.8M 1 loop /snap/snapd/21759 sda 8:0 0 80G 0 disk ├─sda1 8:1 0 1M 0 part ├─sda2 8:2 0 2G 0 part /boot └─sda3 8:3 0 38G 0 part └─ubuntu--vg-ubuntu--lv 253:0 0 37G 0 lvm / sr0 11:0 1 2G 0 rom 接下来我们记录命令操作来扩容分区
1. 将新的空间新建一个磁盘分区
mrchip@ubuntu22:~$ sudo fdisk /dev/sda [sudo] password for mrchip: Welcome to fdisk (util-linux 2.37.2). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. GPT PMBR size mismatch (83886079 != 167772159) will be corrected by write. This disk is currently in use - repartitioning is probably a bad idea. It's recommended to umount all file systems, and swapoff all swap partitions on this disk. Command (m for help): n Partition number (4-128, default 4): First sector (83884032-167772126, default 83884032): Last sector, +/-sectors or +/-size{K,M,G,T,P} (83884032-167772126, default 167772126): Created a new partition 4 of type 'Linux filesystem' and of size 40 GiB. Command (m for help): w The partition table has been altered. Syncing disks. 2. 将新建的分区sda4转换为PV并拓展ubuntu-vg这个卷组
mrchip@ubuntu22:~$ sudo pvcreate -ff -y /dev/sda4 Physical volume "/dev/sda4" successfully created. mrchip@ubuntu22:~$ sudo vgextend ubuntu-vg /dev/sda4 Volume group "ubuntu-vg" successfully extended mrchip@ubuntu22:~$ sudo vgdisplay --- Volume group --- VG Name ubuntu-vg System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 3 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 1 Max PV 0 Cur PV 2 Act PV 2 VG Size 77.99 GiB PE Size 4.00 MiB Total PE 19966 Alloc PE / Size 9472 / 37.00 GiB Free PE / Size 10494 / 40.99 GiB VG UUID aa7Nif-O9wu-0AMo-pxFA-RTsq-v48M-MZ5EUm 3. 扩容ubuntu-lv这个逻辑空间
sudo lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv Size of logical volume ubuntu-vg/ubuntu-lv changed from 37.00 GiB (9472 extents) to 77.99 GiB (19966 extents). Logical volume ubuntu-vg/ubuntu-lv successfully resized. mrchip@ubuntu22:~$ df -h Filesystem Size Used Avail Use% Mounted on tmpfs 791M 2.5M 788M 1% /run /dev/mapper/ubuntu--vg-ubuntu--lv 37G 35G 0 100% / tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock /dev/sda2 2.0G 253M 1.6G 14% /boot shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e80883038e918e14fc90c4519ecc708e642d079d7482ae9a0b78b456c0502ed3/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/baca760e9d9316152da7adb633a6bb05ab76e6cbfe1267bea951f1b3a9038c05/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e8f65d1e3aa83c67c5c55ae5e2bce0b87e905477d0a7dc20ee6fc15a47d2a2eb/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1d091959988cd36e8f71b01572a2e37e341238d263627d8eb839798c4dec86d9/shm tmpfs 791M 4.0K 791M 1% /run/user/1000 4. 对lvm分区的大小进行拓展
mrchip@ubuntu22:~$ sudo resize2fs /dev/ubuntu-vg/ubuntu-lv resize2fs 1.46.5 (30-Dec-2021) Filesystem at /dev/ubuntu-vg/ubuntu-lv is mounted on /; on-line resizing required old_desc_blocks = 5, new_desc_blocks = 10 The filesystem on /dev/ubuntu-vg/ubuntu-lv is now 20445184 (4k) blocks long. mrchip@ubuntu22:~$ df -h Filesystem Size Used Avail Use% Mounted on tmpfs 791M 2.5M 788M 1% /run /dev/mapper/ubuntu--vg-ubuntu--lv 77G 35G 39G 48% / tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock /dev/sda2 2.0G 253M 1.6G 14% /boot shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e80883038e918e14fc90c4519ecc708e642d079d7482ae9a0b78b456c0502ed3/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/baca760e9d9316152da7adb633a6bb05ab76e6cbfe1267bea951f1b3a9038c05/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e8f65d1e3aa83c67c5c55ae5e2bce0b87e905477d0a7dc20ee6fc15a47d2a2eb/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1d091959988cd36e8f71b01572a2e37e341238d263627d8eb839798c4dec86d9/shm tmpfs 791M 4.0K 791M 1% /run/user/1000 参考链接
