How to extend disk space in lvm on Ubuntu

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Before, I allocated 64G of my 128 SSD to lvm when installing Ubuntu server, now I need more disk space. So I learn and extend my lvm space on Ubuntu today. Now let me share with you how to do it.

Log in your Ubuntu server as root.

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lvdisplay
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--- Logical volume ---
LV Path                /dev/ubuntu-vg/ubuntu-lv
LV Name                ubuntu-lv
VG Name                ubuntu-vg
LV UUID                iT1JD2-k2is-5rA3-bDF6-jWeZ-VFmc-ra0Lqg
LV Write Access        read/write
LV Creation host, time ubuntu-server, 2022-11-27 18:25:54 +0800
LV Status              available
# open                 1
LV Size                <116.19 GiB
Current LE             29744
Segments               1
Allocation             inherit
Read ahead sectors     auto
- currently set to     256
Block device           253:0

There you will find your LV path, which is needed in next step.

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lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv # you need to use your own LV path.
resize2fs /dev/ubuntu-vg/ubuntu-lv # use this if you use ext4 same with me. you can use df -T to check it.
lvs # to check whether it takes effect
df -h # to check whether it takes effect

Reference

  1. https://cloud.tencent.com/developer/article/1965711