安装大型软件包时抛出“无空格”错误

Question

我试图在我发送的Ubuntu上安装unity3D，它的棒是10+ gb，而持久部分大约是4GB。

但是，每当我运行dpkg -i unity-editor-5.3.5f1+20160525_amd64.deb时，都需要一段时间，然后抛出这个错误：

(Reading database ... 192291 files and directories currently installed.)
Preparing to unpack unity-editor-5.3.5f1+20160525_amd64.deb ...
Unpacking unity-editor (5.3.5f1) over (5.3.5f1) ...
dpkg: error processing archive unity-editor-5.3.5f1+20160525_amd64.deb (--install):
 cannot copy extracted data for './opt/Unity/Editor/Data/PlaybackEngines/WindowsStandaloneSupport/Variations/win64_nondevelopment_mono/player_win_x64.pdb' to '/opt/Unity/Editor/Data/PlaybackEngines/WindowsStandaloneSupport/Variations/win64_nondevelopment_mono/player_win_x64.pdb.dpkg-new': failed to write (No space left on device)
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Errors were encountered while processing:
 unity-editor-5.3.5f1+20160525_amd64.deb

我搜索了这个问题，读了一些答案，比如清除缓存，不幸的是，这两个解决方案都没有效果。这就是df -a打印的内容：

ubuntu@ubuntu:~/Downloads$ df -a
Filesystem     1K-blocks    Used Available Use% Mounted on
sysfs                  0       0         0    - /sys
proc                   0       0         0    - /proc
udev             4048568       0   4048568   0% /dev
devpts                 0       0         0    - /dev/pts
tmpfs             812644    9656    802988   2% /run
/dev/sdf1       15257600 5681272   9576328  38% /cdrom
/dev/loop1       1399936 1399936         0 100% /rofs
/cow             4062904 3439240    413952  90% /
securityfs             0       0         0    - /sys/kernel/security
tmpfs            4063216     144   4063072   1% /dev/shm
tmpfs               5120       4      5116   1% /run/lock
tmpfs            4063216       0   4063216   0% /sys/fs/cgroup
cgroup                 0       0         0    - /sys/fs/cgroup/systemd
pstore                 0       0         0    - /sys/fs/pstore
cgroup                 0       0         0    - /sys/fs/cgroup/perf_event
cgroup                 0       0         0    - /sys/fs/cgroup/net_cls,net_prio
cgroup                 0       0         0    - /sys/fs/cgroup/memory
cgroup                 0       0         0    - /sys/fs/cgroup/cpu,cpuacct
cgroup                 0       0         0    - /sys/fs/cgroup/devices
cgroup                 0       0         0    - /sys/fs/cgroup/cpuset
cgroup                 0       0         0    - /sys/fs/cgroup/blkio
cgroup                 0       0         0    - /sys/fs/cgroup/freezer
cgroup                 0       0         0    - /sys/fs/cgroup/hugetlb
cgroup                 0       0         0    - /sys/fs/cgroup/pids
systemd-1              0       0         0    - /proc/sys/fs/binfmt_misc
mqueue                 0       0         0    - /dev/mqueue
hugetlbfs              0       0         0    - /dev/hugepages
debugfs                0       0         0    - /sys/kernel/debug
tracefs                -       -         -    - /sys/kernel/debug/tracing
fusectl                0       0         0    - /sys/fs/fuse/connections
tmpfs            4063216     132   4063084   1% /tmp
tmpfs             812644      48    812596   1% /run/user/999
gvfsd-fuse             0       0         0    - /run/user/999/gvfs

编辑:根据.deb，统一du -sh unity-editor-5.3.5f1+20160525_amd64.deb文件为1.2G

Answer 1

dpkg没有说谎，您没有足够的空间安装unity-editor-5.3.5f1+20160525_amd64.deb。

您的root文件系统只有404.25 MB的可用空间，您正在尝试安装一个1.2GB的包。

Filesystem     1K-blocks    Used Available Use% Mounted on
/cow             4062904 3439240    413952  90% /

可用413952 KB。413952 KB == 404.25 MB