Hi, 

I am running odoo V8 I know this is longer supported and is outdated but we have not got around to upgrading to later version. 

We are running ubuntu 14 with postgresql 9.5 Amazon RDS db. We had to upgrade the RDS instance due to Amazon stopping support for 9.5. 

Now I'm no expert on the software, it's the first time I have looked at it, so after doing a bit or reading and research etc this is where I am with it all. 

As root I try and run /etc/init.d/odoo-server start which fails to start the log shows 

2021-02-23 10:46:16,567 14024 DEBUG ? openerp.netsvc: logger level set: "openerp.workflow.workitem:WARNING"
2021-02-23 10:46:16,568 14024 DEBUG ? openerp.netsvc: logger level set: "openerp.http.rpc.request:INFO"
2021-02-23 10:46:16,568 14024 DEBUG ? openerp.netsvc: logger level set: "openerp.http.rpc.response:INFO"
2021-02-23 10:46:16,568 14024 DEBUG ? openerp.netsvc: logger level set: "openerp.addons.web.http:INFO"

If i pick the init script a part and run the following command 
/opt/odoo/odoo-custom/community-apps/odoo/openerp-server -c /etc/odoo-server.conf --log-level=debug

I get the following output error 

Traceback (most recent call last):
File "/opt/odoo/odoo-custom/community-apps/odoo/openerp-server", line 5, in <module>
openerp.cli.main()
File "/opt/odoo/odoo-custom/community-apps/odoo/openerp/cli/__init__.py", line 71, in main
o.run(args)
File "/opt/odoo/odoo-custom/community-apps/odoo/openerp/cli/server.py", line 180, in run
main(args)
File "/opt/odoo/odoo-custom/community-apps/odoo/openerp/cli/server.py", line 140, in main
openerp.tools.config.parse_config(args)
File "/opt/odoo/odoo-custom/community-apps/odoo/openerp/tools/config.py", line 359, in parse_config
openerp.modules.module.initialize_sys_path()
File "/opt/odoo/odoo-custom/community-apps/odoo/openerp/modules/module.py", line 96, in initialize_sys_path
dd = tools.config.addons_data_dir
File "/opt/odoo/odoo-custom/community-apps/odoo/openerp/tools/config.py", line 684, in addons_data_dir
os.makedirs(d, 0700)
File "/usr/lib/python2.7/os.py", line 150, in makedirs
makedirs(head, mode)
File "/usr/lib/python2.7/os.py", line 157, in makedirs
mkdir(name, mode)
OSError: [Errno 107] Transport endpoint is not connected: '/opt/odoo/document_management/addons'

I noticed the last line which references the Transport endpoint is not connected:

I have run a df -h which gives me the following ouput

df: /opt/odoo/document_management: Transport endpoint is not connected

I see the following

s -lh  /opt/odoo/

ls: cannot access '/opt/odoo/document_management': Transport endpoint is not connected

total 12K

d????????? ? ?    ?       ?            ? document_management

A couple of questions. 

1) Should this be mounted e.g via fuse? I don't see anything in history or the user to see the mount or even /etc/fstab.  or does this happen when the server starts?

2) does odoo 8 support postgresql 10*? 
on the back of this I have spun up another rds instance for 9.5 and I still get the same error so I feel this isn't related to my problem. 

3) Below is my odoo-server.conf which is stored in /etc/ which I see is referencing the data_dir I feel this is my issue. 

 [options]
addons_path = /opt/odoo/odoo-custom/community-apps/odoo/addons,/opt/odoo/odoo-custom/custom-apps,/opt/odoo/odoo-custom/community-apps/account-financial-tools,/opt/odoo/odoo-custom/community-apps/web,/opt/odoo/odoo-custom/community-apps/server-tools,/opt/odoo/odoo-custom/community-apps/bank-payment,/opt/odoo/odoo-custom/community-apps/knowledge
data_dir = /opt/odoo/document_management
admin_passwd = *
csv_internal_sep = ,

db_host = *.rds.amazonaws.com
db_maxconn = 64
db_name = *
db_password = *
db_port = 5432
db_template = template1
db_user = *
dbfilter = *
debug_mode = True
demo = {}
email_from = False
import_partial =
limit_memory_hard = 805306368
limit_memory_soft = 671088640
limit_request = 8192
limit_time_cpu = 60
limit_time_real = 300
list_db = True
log_handler = [':DEBUG']
log_level = debug
logfile = /var/log/odoo/odoo-server.log
login_message = False
logrotate = True
max_cron_threads = 2
netrpc = False
netrpc_interface = 0.0.0.0
netrpc_port = 8070
osv_memory_age_limit = 1.0
osv_memory_count_limit = False
pg_path = None
pidfile = None
proxy_mode = False
reportgz = False
secure_cert_file = server.cert
secure_pkey_file = server.pkey
server_wide_modules = None
smtp_password = False
smtp_port = 25
smtp_server = localhost
smtp_ssl = False
smtp_user = False
static_http_document_root = None
static_http_enable = False
static_http_url_prefix = None
syslog = False
test_commit = False
test_enable = False
test_file = False
test_report_directory = False
timezone = False
translate_modules = ['all']
unaccent = False
without_demo = False
workers = 0
xmlrpc = True
xmlrpc_port = 8069
xmlrpcs = True
xmlrpcs_interface =
xmlrpcs_port = 8071
xmlrpc_interface = 0.0.0.0
# Data Source Name, required
#sentry_client_dsn = 
# handle standard python logging
sentry_enable_logging = false

Thanks
Paul