我遇到了一个非常奇怪的问题。我有一个无法创建的文件。无论我如何尝试创建一个文件，文件libnss_dns-2.19.2f.so中的名称/lib都不存在。例如，我尝试以 root 身份运行以下命令。
root@etmjenkins2:/lib# touch libnss_dns-2.19.2f.so
root@etmjenkins2:/lib# ll libnss_dns-2.19.2f.so
ls: cannot access libnss_dns-2.19.2f.so: No such file or directory
root@etmjenkins2:/lib# ls -ld /lib
drwxr-xr-x 22 root root 4096 Aug 7 17:06 /lib
root@etmjenkins2:/lib# mount
/dev/vda1 on / type ext4 (rw,noatime,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/cgroup type tmpfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
none on /sys/fs/pstore type pstore (rw)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)
注意：这是在数字海洋上安装的。