This seems like a combination of (at least) two independent issues - the pgadmin issue and the crash.
On 11/19/24 17:44, Sanjay Khatri wrote: > Dear, > Last week I installed Postgres 15.8 on my Windows server 2016, I > installed the pgadmin thats comes packed with postgresql installer. > I already have postgres 12.1 with pgAdmin installed on my server. > After installing Postgres 15.8, the respective pgAdmin was not working, > it showed error 'Postgres server could not be contacted' > But the old pgAdmin(of Postgres12) was working fine, but was not > displaying the postgres15 server on server list on pgAdmin. I don't use pgadmin (or Windows) so I don't have any ideas why it might be having these connection problems, and I'm not sure I quite understand what you did. But it seems the new 15.8 server simply was not running, that would explain all the symptoms. > But, I wanted to work on the new pgAdmin (which was installed with > postgres15). So I tried to find the solution on internet, and I got the > solution. It was just to delete the pgAdmin.bak file from > 'C\Users\Username\AppData\Roaming\pgAdmin\' > And I did that and It worked, the bew PgAdmin started to work, it also > displayed the Postgres15 connection se server list. That is weird, TBH. No idea why deleting a .bak file would matter. > But after 2 hours, my Windows Server 2016 crashed, and I am not able to > boot my system. So on hard restart the system and it restarted well. And > I quickly uninstalled the Postgres15 with its pgadmin from the machine. > But the system crashed again after uninstalling the postgres 15. Now I > am not able to boot the system. Its been 2 days the system is not able > to boot. > The system is on dell iDrac PowerEdge M6300. > Is there any solution for this, I can try the solution if you suggest. > We cannot format the Storage as our data is within the hardisk (Raid) > type. And we dont have any data backup too. > Please help if possible It's very unlikely a Postgres issue would make the whole system crash, particularly in a way that prevents it from booting again. I don't think anyone will be able to help you without more info - you need to make it boot again, inspect the Postgres logs, etc. regards -- Tomas Vondra