我本地托管的 Discourse 今天早上突然无法工作了。我尝试运行 ./launcher rebuild app，但出现了以下错误：
该分区最初为 20GB，但我使用 gparted 将其扩展到了 80GB：
那么，为什么错误信息仍然显示大小仅为 18GB？我该如何解决这个问题？我已经尝试过清理 Docker 镜像和容器的选项。
What does
df -h /
and
df -h /var/lib/docker
say?
I think that it’s possible to resize the partition without resizing the filesytem, thought I was pretty sure that gparted would do the Right Thing.
This is likely more of a Stack Exchange question than a Discourse question.
df -h /
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/discourse–vg-root 18G 14G 3.0G 83% /
df -h /var/lib/docker
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/discourse–vg-root 18G 14G 3.0G 83% /
It looks like that partition is not where Docker lives. How about
mount
You probably need to move /var/lib/docker to that Discourse partition.
`mount`
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=974720k,nr_inodes=243680,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=198996k,mode=755)
/dev/mapper/discourse--vg-root on / type ext4 (rw,relatime,errors=remount-ro,data=ordered)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=24,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
/dev/sda1 on /boot type ext2 (rw,relatime,block_validity,barrier,user_xattr,acl,stripe=4)
lxcfs on /var/lib/lxcfs type fuse.lxcfs (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
/dev/mapper/discourse--vg-root on /var/lib/docker/plugins type ext4 (rw,relatime,errors=remount-ro,data=ordered)
/dev/mapper/discourse--vg-root on /var/lib/docker/overlay2 type ext4 (rw,relatime,errors=remount-ro,data=ordered)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=198996k,mode=700,uid=1000,gid=1000)Oops. df -h probably would have been better.
~$ df -h
Filesystem Size Used Avail Use% Mounted on
udev 952M 0 952M 0% /dev
tmpfs 195M 3.1M 192M 2% /run
/dev/mapper/discourse--vg-root 18G 14G 3.0G 83% /
tmpfs 972M 0 972M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 972M 0 972M 0% /sys/fs/cgroup
/dev/sda1 472M 468M 0 100% /boot
tmpfs 195M 0 195M 0% /run/user/1000Yeah. It’s an LVM partition, so you need to google for something like “linux lvm resize” to get it to use all the space. LVM is this magic thing that makes it “easier” to resize partitions, but you have to know to do that.
Gparted only increased the backing partition and maybe the volume group. You will also need to resize the logical volume and the filesystem.
pvresize /dev/sda5
lvresize -l+100%FREE -r /dev/mapper/discourse--vg-root
Worked perfectly! Thank you so much! I’m finally back up and running again.