No Space left on Device 관련 문제

용량이 꽉차지 않았는데 계속 폴더 생성을 하는데도 No space left on device 오류가 뜹니다.
검색을 통해서 Inodes도 확인해봤는데 Inodes도 문제가 없는것 같은데 어떤게 문제일까요?

현재 sdb2에 폴더를 만드려고 하고 있었습니다.


쉘에서 mount 명령어를 입력하시면 파일시스템 정보가 나옵니다 그 옵션도 출력되구요,
원인파악에 좀 더 가까이 접근하실 수 있지않을까하는 생각에 한번 적어봤어요~

저와 같은 경우엔 아래와 같습니다… 크롬북위에서 돌아가는 우분투 18.04 LTS 입니다.

/dev/mmcblk0p1 on / type ext4 (rw,noatime,seclabel,resgid=20119,commit=600,data=ordered)
devtmpfs on /dev type devtmpfs (rw,nosuid,noexec,relatime,seclabel,size=2014372k,nr_inodes=503593,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,seclabel,gid=5,mode=620,ptmxmode=000)
shmfs on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,seclabel)
tmp on /tmp type tmpfs (rw,nosuid,nodev,relatime,seclabel)
none on /proc type proc (rw,nosuid,nodev,noexec,relatime)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,seclabel,size=403120k,mode=755)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,seclabel,size=5120k)
run on /var/host/dbus type tmpfs (rw,nosuid,nodev,noexec,relatime,seclabel,mode=755)
run on /var/host/shill type tmpfs (rw,nosuid,nodev,noexec,relatime,seclabel,mode=755)
/dev/mapper/encstateful on /var/host/timezone type ext4 (rw,nosuid,nodev,noexec,noatime,seclabel,discard,commit=600,data=ordered)
/dev/dm-0 on /lib/modules/3.18.0-20580-g316002d07643 type ext2 (ro,relatime,seclabel)
run on /var/host/udev type tmpfs (rw,nosuid,nodev,noexec,relatime,seclabel,mode=755)
run on /var/host/cras type tmpfs (rw,nosuid,nodev,noexec,relatime,seclabel,mode=755)
run on /var/host/chrome type tmpfs (rw,nosuid,nodev,noexec,relatime,seclabel,mode=755)
media on /var/host/media type tmpfs (rw,nosuid,nodev,noexec,relatime,seclabel)
/dev/mmcblk0p1 on /home/soyeomul/Downloads type ext4 (rw,nosuid,nodev,noatime,seclabel,resgid=20119,commit=600,data=ordered)
none on /sys type sysfs (rw,nosuid,nodev,noexec,relatime,seclabel)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime,seclabel)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime,seclabel,gid=605,mode=750)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
none on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,relatime,seclabel,mode=755)
cgroup on /sys/fs/cgroup/cpu type cgroup (rw,nosuid,nodev,noexec,relatime,cpu)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset,noprefix)
cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls)
none on /sys/fs/selinux type tmpfs (ro,relatime,seclabel)
tmpfs on /sys/class/drm type tmpfs (rw,nosuid,noexec,relatime,seclabel,size=403120k,mode=755)
tmpfs on /dev/dri type tmpfs (rw,nosuid,noexec,relatime,seclabel,size=403120k,mode=755)
gvfsd-fuse on /home/soyeomul/.gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
drivefs on /var/host/media/fuse/drivefs-c124b356dddc25535d78f18e9723610b type fuse.drivefs (rw,nosuid,nodev,noexec,relatime,user_id=1000,group_id=1000,default_permissions,allow_other)

[크롬북에서 적었어요~]
[우분투 18.04 파여폭스 나비에서 한번더 오타를 교정했습니다]