lvextend "write error failed: No space left on device"

[davet13]

My root directory has run out of space. I have been trying to extend the space available to my root volume.

lvdisplay output:

pciadmin@phabricator2:~$ sudo lvdisplay
  --- Logical volume ---
  LV Path                /dev/phabricator2-vg/root
  LV Name                root
  VG Name                phabricator2-vg
  LV UUID                fcl37J-r6yY-qmxP-8Sxa-lOgi-bduJ-vyze44
  LV Write Access        read/write
  LV Creation host, time phabricator2, 2019-01-23 12:59:28 -0700
  LV Status              available
  # open                 1
  LV Size                5.16 GiB
  Current LE             1320
  Segments               2
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           252:0


  --- Logical volume ---
  LV Path                /dev/phabricator2-vg/swap_1
  LV Name                swap_1
  VG Name                phabricator2-vg
  LV UUID                GNK5cA-qbcy-jSr8-vk4t-wVZ7-HPmF-gD9mYG
  LV Write Access        read/write
  LV Creation host, time phabricator2, 2019-01-23 12:59:28 -0700
  LV Status              available
  # open                 2
  LV Size                4.36 GiB
  Current LE             1117
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           252:1

df output:

pciadmin@phabricator2:~$ sudo df
Filesystem                        1K-blocks    Used Available Use% Mounted on
udev                                2127356       0   2127356   0% /dev
tmpfs                                429480    6108    423372   2% /run
/dev/mapper/phabricator2--vg-root   5166504 5150120         0 100% /
tmpfs                               2147392       0   2147392   0% /dev/shm
tmpfs                                  5120       0      5120   0% /run/lock
tmpfs                               2147392       0   2147392   0% /sys/fs/cgroup
/dev/xvda1                           482922   58225    399763  13% /boot
tmpfs                                429584       0    429584   0% /run/user/1000

pvdisplay output:

pciadmin@phabricator2:~$ sudo pvdisplay
  --- Physical volume ---
  PV Name               /dev/xvda5
  VG Name               phabricator2-vg
  PV Size               9.52 GiB / not usable 2.00 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              2437
  Free PE               0
  Allocated PE          2437
  PV UUID               zT75Qa-ZU2C-uEes-WhCS-aEe3-joyw-PGKexG


  --- Physical volume ---
  PV Name               /dev/xvda3
  VG Name               phabricator2-vg
  PV Size               9.06 GiB / not usable 1.34 MiB
  Allocatable           yes
  PE Size               4.00 MiB
  Total PE              2319
  Free PE               2319
  Allocated PE          0
  PV UUID               dDHJtE-agLF-tcAo-kCrG-07ji-Dl8e-XNMgYd

vgdisplay output:

pciadmin@phabricator2:~$ sudo vgdisplay
  --- Volume group ---
  VG Name               phabricator2-vg
  System ID
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  5
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               2
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               18.58 GiB
  PE Size               4.00 MiB
  Total PE              4756
  Alloc PE / Size       2437 / 9.52 GiB
  Free  PE / Size       2319 / 9.06 GiB
  VG UUID               jiyC26-q1Q4-huAX-l7iM-UIEE-3Jcv-E0CiLg

When I try to run lvextend on root, I get the following error:

pciadmin@phabricator2:~$ sudo lvextend -L+8G /dev/phabricator2-vg/root
  /etc/lvm/archive/.lvm_phabricator2_2193_124559942: write error failed: No space left on device
  Volume group "phabricator2-vg" metadata archive failed.

I'm not sure what I'm missing.

[Dennis N]

Delete or move some files from root to make room to write additions to /etc/lvm/archive

Then, when extending the lv, you have to resize the filesystem too. Try:

 sudo lvextend --resizefs --extents= +2000 /dev/phabricator2-vg/root

This adds 2000 of the 2319 free extents, which is about 8 GB, and resizes the file system at the same time.