I had a situation where after installing a fresh install of Fedora from the Netinstall ISO, when starting a Docker container I was told I had ran out of disk space. My initial reaction was to just reinstall and manually partition instead of having Fedora do it for me in the setup.
However, that meant having to bring my server back upstairs, and I didn’t want to do that, so I looked for another route, which turned out to be really easy.
Using lsblk you can see how little space was left on /dev/sda3.
$ lsblk -f
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS
sda
├─sda1 vfat FAT32 8FA9-0D2C 592.6M 1% /boot/efi
├─sda2 xfs 9eb5eb28-d901-4f17-aedc-38919304642f 805.9M 21% /boot
└─sda3 LVM2_member LVM2 001 LirRYx-Vzxw-ctQe-9Nm1-1f3H-6N1a-A3WJU2
└─fedora_fedora-root xfs 72dd0d5e-28c9-49b9-a533-d22ce8090098 2.9G 81% /
sdb
└─sdb1 ext4 1.0 data 57cc0091-0ba2-48f0-a327-cd7c2c4a0545 294.2G 28% /mnt/data-ssd-01
sdc
└─sdc1 ext4 1.0 backup ebc7b754-fa8f-4387-a979-a55f72a180e0
zram0 [SWAP]
As I had Fedora setup partitions with a logical volume group, I was able to check that the volume group had a lot more space capacity (under VFree).
$ sudo vgs
VG #PV #LV #SN Attr VSize VFree
fedora_fedora 1 1 0 wz--n- <231.30g <216.30g
I then needed to double check the name of my logical volume group LV Path, so I could pass it to the command that would extend the group.
$ sudo lvdisplay -m
--- Logical volume ---
LV Path /dev/fedora_fedora/root
LV Name root
VG Name fedora_fedora
LV UUID MM7KyS-LrL8-umvb-Mc5i-WkRf-WglD-ZvAwlO
LV Write Access read/write
LV Creation host, time main-01, 2022-09-26 17:53:14 +0100
LV Status available
# open 1
LV Size 15.00 GiB
Current LE 3840
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
--- Segments ---
Logical extents 0 to 3839:
Type linear
Physical volume /dev/sda3
Physical extents 0 to 3839
This simple command tells the system to increase the volume group capacity by 100% of the remaining capacity.
$ sudo lvextend --resizefs --extents +100%FREE /dev/fedora_fedora/root
You can then see that everything was sorted.
$ lsblk -f
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS
sda
├─sda1 vfat FAT32 8FA9-0D2C 592.6M 1% /boot/efi
├─sda2 xfs 9eb5eb28-d901-4f17-aedc-38919304642f 805.9M 21% /boot
└─sda3 LVM2_member LVM2 001 LirRYx-Vzxw-ctQe-9Nm1-1f3H-6N1a-A3WJU2
└─fedora_fedora-root xfs 72dd0d5e-28c9-49b9-a533-d22ce8090098 210.6G 9% /
sdb
└─sdb1 ext4 1.0 data 57cc0091-0ba2-48f0-a327-cd7c2c4a0545 294.2G 28% /mnt/data-ssd-01
sdc
└─sdc1 ext4 1.0 backup ebc7b754-fa8f-4387-a979-a55f72a180e0
zram0 [SWAP]
