
**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)


"            <password remove='1' />\n"
                    "            <password_sha256_hex>" << hash_hex << "</password_sha256_hex>\n"
                    "        </default>\n"
                    "    </users>\n"
                    "</clickhouse>\n";
                out.sync();
                out.finalize();
                fmt::print(HILITE "Password for default user is saved in file {}." END_HILITE "\n", password_file);
#else
                out << "<clickhouse>\n"
                    "    <users>\n"
                    "        <default>\n"
                    "            <password><![CDATA[" << password << "]]></password>\n"
                    "        </default>\n"
                    "    </users>\n"
                    "</clickhouse>\n";
                out.sync();
                out.finalize();
                fmt::print(HILITE "Password for default user is saved in plaintext in file {}." END_HILITE "\n", password_file);
#endif
                has_password_for_default_user = true;
            }
            else
                fmt::print(HILITE "Password for default user is empty string. See {} and {} to change it." END_HILITE "\n",
                           users_config_file.string(), users_d.string());
        }
        /** Set capabilities for the binary.
          *
          * 1. Check that "setcap" tool exists.
          * 2. Check that an arbitrary program with installed capabilities can run.