这个unit怎么运行的：[Unit] Description=Local File Systems Documentation=man:systemd.special(7) DefaultDependencies=no Conflicts=shutdown.target After=local-fs-pre.target

这个单元是用来启动本地文件系统的。它的默认依赖关系是关闭的，在 local-fs-pre.target 之后启动，与 shutdown.target 冲突。

它的描述信息是 "Local File Systems"，并提供了 man:systemd.special(7) 的文档。

相关问题

as: unrecognized option '-mcpu=cortex-a5' ninja: build stopped: subcommand failed.

This error message suggests that the compiler is unable to recognize the option "-mcpu=cortex-a5". This option is used to specify the target CPU architecture for the compilation process.

One possible reason for this error could be that the compiler version being used does not support the "-mcpu=cortex-a5" option. In that case, you may need to upgrade the compiler to a version that supports this option.

Another possible reason could be a typo in the command or a missing dependency. Double-check the command and make sure that all required dependencies are installed and available.

If you are still unable to resolve the issue, you may need to seek further assistance from the compiler or platform documentation, or from a support forum specific to your platform or toolchain.

OSError: libmpi.so.40: cannot open shared object file: No such file or directory

This error message indicates that the system is unable to find the shared library file "libmpi.so.40", which is required for the execution of a program. The "No such file or directory" error suggests that the file is either missing or not located in the specified path.

To resolve this issue, you can try the following steps:

1. Check if the required library file exists on your system. Use the following command to search for it:

   find / -name libmpi.so.40

This command will search for the file in the entire filesystem. If it is found, note down the path.

2. If the file is found, you can set the library path using the `LD_LIBRARY_PATH` environment variable. Execute the following command, replacing `/path/to/lib` with the actual path to the file:

   export LD_LIBRARY_PATH=/path/to/lib:$LD_LIBRARY_PATH

After setting the variable, try running your program again.

3. If the file is not found on your system, you may need to install the missing library or update your MPI installation. Consult the documentation of your MPI library or contact your system administrator for assistance.

Remember to replace "/path/to/lib" with the actual path to the library file. Additionally, make sure that you have appropriate permissions to access and execute the library.