Ubuntu在docker pull ** 时报错：/var/lib/docker/tmp/GetImageBlob***: no space left on device

1.df -h查看磁盘使用情况

[email protected]:/usr/local/docker/tomcat/ROOT# df -h
Filesystem                         Size  Used Avail Use% Mounted on
udev                               451M     0  451M   0% /dev
tmpfs                               97M  1.2M   96M   2% /run
/dev/mapper/ubuntu--vg-ubuntu--lv  3.9G  3.8G     0 100% /
tmpfs                              482M     0  482M   0% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
tmpfs                              482M     0  482M   0% /sys/fs/cgroup
/dev/loop0                          91M   91M     0 100% /snap/core/6350
/dev/sda2                          976M  143M  767M  16% /boot
tmpfs                               97M     0   97M   0% /run/user/0
/dev/loop1                          89M   89M     0 100% /snap/core/7396

发现/dev/mapper/ubuntu–vg-ubuntu–lv磁盘满了

2.扩容(LVM)磁盘

1.显示存在的卷组

sudo vgdisplay

[email protected]:/usr/local/docker/tomcat/ROOT# sudo vgdisplay
  --- Volume group ---
  VG Name               ubuntu-vg
  System ID             
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  2
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                1
  Open LV               1
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               <19.00 GiB
  PE Size               4.00 MiB
  Total PE              4863
  Alloc PE / Size       1024 / 4.00 GiB
  Free  PE / Size       3839 / <15.00 GiB
  VG UUID               0wPFbX-c5cC-Cg1R-9H6K-zL5X-8cC0-NmjN63

Alloc PE / Size 1024 / 4.00 GiB
Free PE / Size 3839 / <15.00 GiB
第一个是 /dev/mapper/ubuntu–vg-ubuntu–lv 这个磁盘
第二个是 这个磁盘可以扩容的大小

2.开始扩容

sudo lvextend -L 10G /dev/mapper/ubuntu–vg-ubuntu–lv
扩容10G

3.重新计算磁盘大小

sudo resize2fs /dev/mapper/ubuntu–vg-ubuntu–lv

成功

[email protected]:/usr/local/docker/tomcat/ROOT# sudo vgdisplay
  --- Volume group ---
  VG Name               ubuntu-vg
  System ID             
  Format                lvm2
  Metadata Areas        1
  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                1
  Act PV                1
  VG Size               <19.00 GiB
  PE Size               4.00 MiB
  Total PE              4863
  Alloc PE / Size       2560 / 10.00 GiB
  Free  PE / Size       2303 / <9.00 GiB
  VG UUID               0wPFbX-c5cC-Cg1R-9H6K-zL5X-8cC0-NmjN63
   
[email protected]:/usr/local/docker/tomcat/ROOT# df -h
Filesystem                         Size  Used Avail Use% Mounted on
udev                               451M     0  451M   0% /dev
tmpfs                               97M  1.2M   96M   2% /run
/dev/mapper/ubuntu--vg-ubuntu--lv  9.8G  3.8G  5.6G  41% /
tmpfs                              482M     0  482M   0% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
tmpfs                              482M     0  482M   0% /sys/fs/cgroup
/dev/loop0                          91M   91M     0 100% /snap/core/6350
/dev/sda2                          976M  143M  767M  16% /boot
tmpfs                               97M     0   97M   0% /run/user/0
/dev/loop1                          89M   89M     0 100% /snap/core/7396