It's been 10+ years since I've done any server admin work and now I have installed on an old laptop an Ubuntu 20.04 server and I have some problems in making all space available in the / partition ... or maybe I am getting it wrong ?
df -h shows only 110GB allocated
root@dell-csi:~# df -h
Filesystem Size Used Avail Use% Mounted on
udev 3.9G 0 3.9G 0% /dev
tmpfs 792M 1.5M 791M 1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv 110G 6.4G 98G 7% / <<--------------------
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/sda2 976M 104M 806M 12% /boot
/dev/loop0 55M 55M 0 100% /snap/core18/1880
/dev/loop1 72M 72M 0 100% /snap/lxd/16099
/dev/loop2 30M 30M 0 100% /snap/snapd/8542
tmpfs 792M 0 792M 0% /run/user/1000
but the partition has about double in size:
root@dell-csi:~# fdisk -l
Disk /dev/loop0: 54.98 MiB, 57626624 bytes, 112552 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/loop1: 71.28 MiB, 74735616 bytes, 145968 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: 29.9 MiB, 31334400 bytes, 61200 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: 223.58 GiB, 240057409536 bytes, 468862128 sectors
Disk model: OCZ-ARC100
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: BD916C44-BD95-4405-8E21-8E00B2071A77
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 468858879 466757632 222.6G Linux filesystem <<-------------------
Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 111.29 GiB, 119491526656 bytes, 233381888 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
pvscan shows the following:
root@dell-csi:~# pvscan
File descriptor 4 (pipe:[30683]) leaked on pvscan invocation. Parent PID 1196: bash
File descriptor 5 (pipe:[30683]) leaked on pvscan invocation. Parent PID 1196: bash
File descriptor 9 (pipe:[30686]) leaked on pvscan invocation. Parent PID 1196: bash
PV /dev/sda3 VG ubuntu-vg lvm2 [<222.57 GiB / 111.28 GiB free]
Total: 1 [<222.57 GiB] / in use: 1 [<222.57 GiB] / in no VG: 0 [0 ]
Any idea in making all the space available to / is highly appreciated. Thanks!
答案1
The solution was:
- use
lvextendto extend the logical volume
root@dell-csi:~# lvextend -L +111G /dev/mapper/ubuntu--vg-ubuntu--lv
File descriptor 4 (pipe:[30683]) leaked on lvextend invocation. Parent PID 1196: bash
File descriptor 5 (pipe:[30683]) leaked on lvextend invocation. Parent PID 1196: bash
File descriptor 9 (pipe:[30686]) leaked on lvextend invocation. Parent PID 1196: bash
Size of logical volume ubuntu-vg/ubuntu-lv changed from <111.29 GiB (28489 extents) to <222.29 GiB (56905 extents).
Logical volume ubuntu-vg/ubuntu-lv successfully resized.
- then use
resize2fs
root@dell-csi:~# resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv
resize2fs 1.45.5 (07-Jan-2020)
Filesystem at /dev/mapper/ubuntu--vg-ubuntu--lv is mounted on /; on-line resizing required
old_desc_blocks = 14, new_desc_blocks = 28
The filesystem on /dev/mapper/ubuntu--vg-ubuntu--lv is now 58270720 (4k) blocks long.
Now all space is available in root.
root@dell-csi:~# df -h /home/
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/ubuntu--vg-ubuntu--lv 219G 6.6G 202G 4% /