
**Describe the unexpected behaviour**
Trying to install clickhouse in FreeBSD (pfsense firewall), following this [link ](https://clickhouse.com/#quick-start)

**How to reproduce**
1 - copy the ClickHouse file into pfsense from [here](https://builds.clickhouse.com/master/freebsd/clickhouse)
2 - chmod a+x ./clickhouse
3 - sudo ./clickhouse install

 **Which ClickHouse server version to use**
- 21.12.1.8928 (official build


**Error message and/or stacktrace**
Code: 107. DB::Exception: Cannot obtain path to the binary from /proc/self/exe, file doesn't exist. (FILE_DOESNT_EXIST) (version 21.12.1.8928 (official build))
![image](https://user-images.githubusercontent.com/14872281/148040641-26f23fc0-39e9-4dcd-97dc-860c9cdefb9b.png)


}
            else if (!sh->out.eof())
            {
                fmt::print("The pidof command returned unusual output.\n");
            }
            WriteBufferFromFileDescriptor std_err(STDERR_FILENO);
            copyData(sh->err, std_err);
            sh->tryWait();
        }
        if (pid)
        {
            if (0 == kill(pid, 0))
            {
                fmt::print("The process with pid = {} is running.\n", pid);
            }
            else if (errno == ESRCH)
            {
                fmt::print("The process with pid = {} does not exist.\n", pid);
                return 0;
            }
            else
                throwFromErrno(fmt::format("Cannot obtain the status of pid {} with `kill`", pid), ErrorCodes::CANNOT_KILL);
        }
        if (!pid)
        {
            fmt::print("Now there is no clickhouse-server process.\n");
        }
        return pid;
    }
    int stop(const fs::path & pid_file, bool force)