外置硬盘上的任何脚本都无法用 launchctl load

[blackcurrant]

me@mac /Volumes/T7Shield/test$ ls
testdaemon.plist testdaemon.sh

me@mac /Volumes/T7Shield/test$ launchctl load testdaemon.plist
Load failed: 5: Input/output error
Try running `launchctl bootstrap` as root for richer errors.

me@mac /Volumes/T7Shield/test$ plutil testdaemon.plist
testdaemon.plist: OK

如果把脚本移动到系统盘就能正常 load, 有人知道如何解决吗？

[churchmice]

Try running `launchctl bootstrap` as root for richer errors.

[neilyoone]

Try running `launchctl bootstrap` as root for richer errors.

[blackcurrant]

```
mac@mac /Volumes/T7Shield/test$ launchctl bootstrap gui/501 testdaemon.plist
Bootstrap failed: 5: Input/output error
Try re-running the command as root for richer errors.

me@mac /Volumes/T7Shield/test$ sudo launchctl bootstrap gui/501 testdaemon.plist

me@mac /Volumes/T7Shield/test$ launchctl list|grep test
- 78 testdaemon

me@mac /Volumes/T7Shield/test$ sudo launchctl kickstart -k gui/501/testdaemon

me@mac /Volumes/T7Shield/test$ ps -ef|grep test
501 20046 7610 0 8:02PM ttys005 0:00.00 grep --color=always test
```

用 sudo launchctl bootstrap 似乎能够载入，但是并没有运行。