How to connect to the agent: IPC connect call - windows

I'm using Ubuntu (VERSION="20.04 LTS (Focal Fossa) on Windows 10. Itried to install Docker.
I'm following the Docs from docs.docker.com:
I run the two commands:
$ curl -fsSL https://get.docker.com -o get-docker.sh
$ sudo sh get-docker.sh
When I run the second command it return an error:
Warning: apt-key output should not be parsed (stdout is not a terminal)
gpg: can't connect to the agent: IPC connect call failed
I looked in internet I found that some links trying to resolve the issue but in vein.
gpg: can't connect to the agent: IPC connect call failed
https://michaelheap.com/gpg-cant-connect-to-the-agent-ipc-connect-call-failed/
Someone have a suggestion please ?
Thanks

The temporary workaround mentioned on the issue thread at https://github.com/microsoft/WSL/issues/5125#issuecomment-625985191 worked for me. Run the commands
wget https://launchpad.net/~rafaeldtinoco/+archive/ubuntu/lp1871129/+files/libc6_2.31-0ubuntu8+lp1871129~1_amd64.deb
sudo dpkg --install libc6_2.31-0ubuntu8+lp1871129~1_amd64.deb
sudo apt-mark hold libc6 #to avoid further update
Edit: /var/lib/dpkg/info/libc6:amd64.postinst and remove the sleep 1 like so:
Change this:
To this:

Related

Solana installation failure with curl: (23) Failure writing output to destination

When following the Solana tool suite installation guide I got the following error which says curl: (23) Failure writing output to destination.
sh -c "$(curl -N -sSfL https://release.solana.com/v1.9.4/install)"
downloading v1.9.4 installer
curl: (23) Failure writing output to destination
solana-install-init: command failed: downloader http://release.solana.com/v1.9.4/solana-install-init-x86_64-unknown-linux-gnu /tmp/tmp.mbRp5X2BUn/solana-install-init
According to the previously asked question about curl: (23) Failure writing output to destination it seems like there is an issue with the script which at least I don't want to change myself to install Solana. Why does cURL return error "(23) Failed writing body"?
When I tried to read the Solana installation script I found that alternatively I can use wget to install Solana which I decided to use instead of curl. There are two steps you have to follow in order to get it fixed.
Uninstall curl from your system temporarily sudo snap remove curl.
Execute sh -c "$(wget https://release.solana.com/v1.9.4/install)" instead of the given command in the Solana tool suite page.
Once you install you have to update your path to add solana, you can do it by adding the following line to the ~/.bashrc file. (Make sure you update the path)
export PATH="/home/{user}/.local/share/solana/install/active_release/bin:$PATH"
I had the same problem and the problem for me was that I installed curl via sudo snap install curl . So I tried:
removing curl using sudo snap remove curl and went with the comment above, using "wget" wich did not work for me.
Then i tried reinstalling curl with sudo apt install curl and then finally
sh -c "$(curl -sSfL https://release.solana.com/v1.10.29/install)"
And it worked like a charm. I hope this helps someone!

Rundeck debconf-set-selection:

I'm using Rundeck 3.2.6-20200427 and set up a job for installing packages.
Because rundeck runs noninteractive I need to preset some parameters for installing packages (in my case iptables-persistent).
Before installing the package I run that command (for now only this parameter, I will use more parameters if I got that working):
echo iptables-persistent iptables-persistent/autosave_v4 boolean false | sudo debconf-set-selections
Unfortunatelly I got that error if I run rundeck-command
09:09:08 debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable
09:09:08 Failed: NonZeroResultCode: Remote command failed with exit status 1
I'm absolute sure that there are no other task or running dpkg related process.
~$ lsof /var/cache/debconf/config.dat
~$
If I try to run that command directly, it works without any error. So I don't understand, why it is not working with rundeck.
I tried that on freshly installed host where I try to install packages (Ubuntu Server 20.04).
Here is my job definition: https://pastebin.com/YSu545tX
I found out that in the node-file, there was a typo so the job was running on wrong host and there were an apt-process, which was stuck.
There I checked with that command:
~$ sudo fuser -v /var/cache/debconf/config.dat
USER PID ACCESS COMMAND
/var/cache/debconf/config.dat:
root 5563 F.... frontend
Then I killed that process and corrected the node-file. Now it works.
I meet the same problem, but both 'fuser' and 'lsof' show nothing. finally finds out is dpkg lock that file, and use
ps aux | grep dpkg
to find that process and kill it.

gpg: can't connect to the agent: IPC connect call failed

I am having a problem while trying to decrypt some keys using GPG. The following output is given to me:
gpg: can't connect to the agent: IPC connect call failed
I already edited some files, pointed in this tutorial: https://michaelheap.com/gpg-cant-connect-to-the-agent-ipc-connect-call-failed/ but with no success.
Possible reasons for that?
Even I had the above issue in Ubuntu 20 WSL, I tried all the below | above suggestions, but none worked for me.
root#7400-9888K13:/mnt/c/Users/PKammari# wget -q -O - https://packages.cloudfoundry.org/debian/cli.cloudfoundry.org.key | sudo apt-key add -
gpg: can't connect to the agent: IPC connect call failed
What did I do to resolve the issue?
remove gpg
install other version of gpg.
How do I do it?
apt remove gpg ( follow the instructions)
apt install gnupg1 (follow the instructions)
Option 2.
sudo apt update --y
`sudo apt remove gpg`
`sudo apt-get update -y`
`sudo apt-get install -y gnupg1`
Proof. (refer to the screenshot):
There is probably already a gpg-agent running on the system, which your gpg command is unable to connect to.
If you do a pkill -9 gpg-agent and then source <(gpg-agent --daemon) to restart the agent, you should be able to connect to the pinentry-curses for inputting your password.
In my case the agent wasn't even started. This is what I did to resolve:
C:\Program Files (x86)\gnupg\bin>gpg-connect-agent -v
gpg-connect-agent: no running gpg-agent - starting 'C:\Program Files (x86)\gnupg\bin\gpg-agent.exe'
gpg-connect-agent: waiting for the agent to come up ... (5s)
gpg-connect-agent: connection to agent established
> ^Z
Afterwards the commands to the agent started working.
To hopefully add to preetam's excellent answer above for those very new to this.
To install gnupg1 - if you get the error "Package gnupg1 is not available, but referenced....."
sudo apt remove gpg
sudo apt-get update -y
sudo apt-get install -y gnupg1
For me, previous responses worked, but partially, what made the magic in my case was a combination of all, see the commands below.
If you get error add-apt-repository: command not found, then, install package software properties common.
sudo apt remove gpg
sudo apt-get update -y
sudo apt-get install -y gnupg1
# In case of Error when adding "ppa" with message: add-apt-repository: command not found
sudo apt-get install software-properties-common
# Now, the hack
sudo add-apt-repository ppa:rafaeldtinoco/lp1871129
sudo apt update
wget https://launchpad.net/~rafaeldtinoco/+archive/ubuntu/lp1871129/+files/libc6_2.31-0ubuntu8+lp1871129~1_amd64.deb
sudo dpkg --install libc6_2.31-0ubuntu8+lp1871129~1_amd64.deb
sudo apt-mark hold libc6 #to avoid further update
# Edit: /var/lib/dpkg/info/libc6:amd64.postinst and remove the sleep 1 that is in nearly the last line.
apt-get install -y gnupg gnupg1
cp -a /usr/bin/gpg /usr/bin/gpg2
ln -sf /usr/bin/gpg1 /usr/bin/gpg
apt-key worked for me after executing those commands.
I'm WSL 2.0 with Ubuntu 20.04 (Windows 10 Build 2004).
Reason:
uninstalling gnupg (2.x) also uninstalls gpg-agent, which is required.
installing gnupg1 (1.x) will install only gpg binary, not gpg-agent.
Both are required to work, but we want gnupg1 (1.x) to be the default "gpg" command (despite working with 2.x support-tools).
Based upon other behaviors in my Windows 10 system and through experimentation, I believe sometimes Windows Defender blocks gpg-agent from running because of a Windows Defender bug that slows the system trying to access low-level CPU counters.
Read Windows Defender can Significantly Impact Intel CPU Performance, We have the Fix. Work around the issue by downloading Counter Control from TECHPOWERUP and clicking "Reset Counters" when this problem arises. (See below.)
In my case I would frequently get the following error while trying to sign JAR files for deployment to Maven Central.
gpg: can't connect to the gpg-agent: IPC connect call failed
gpg: keydb_search failed: No agent running
gpg: skipped "…": No agent running
gpg: signing failed: No agent running
Sometimes if I kept trying over and over and over, eventually it would succeed.
Based on other answers, when this happened I trying manually connecting to the gpg-agent, but even that would time out:
> gpg-connect-agent --verbose
gpg-connect-agent: no running gpg-agent - starting 'C:\\Program Files (x86)\\GnuPG\\bin\\gpg-agent.exe'
gpg-connect-agent: waiting for the agent to come up ... (5s)
gpg-connect-agent: waiting for the agent to come up ... (4s)
gpg-connect-agent: waiting for the agent to come up ... (3s)
gpg-connect-agent: waiting for the agent to come up ... (2s)
gpg-connect-agent: waiting for the agent to come up ... (1s)
gpg-connect-agent: can't connect to the gpg-agent: IPC connect call failed
gpg-connect-agent: error sending standard options: No agent running
Because I've been experiencing similar slowdown issues on my machine seemingly related to Windows Defender, I ran "Counter Control" and sure enough, it showed that Windows Defender was maxing out the counter access as described in the article above. (Image embedded from the article.)
I tried to manually connect to gpg-agent again, but this time I hit "Reset Counters" in the utility just as gpg-connect-agent was retrying. When I did this, it immediately connected!
> gpg-connect-agent --verbose
gpg-connect-agent: no running gpg-agent - starting 'C:\\Program Files (x86)\\GnuPG\\bin\\gpg-agent.exe'
gpg-connect-agent: waiting for the agent to come up ... (5s)
gpg-connect-agent: connection to the agent established
This seems unlikely to be a coincidence that it would connect at just the moment I reset the counters. Moreover Windows Defender has been causing other slowdown problems on my machine.
I believe that buggy behavior of Windows Defender is causing this problem on my machine. Please investigate and report if you can reproduce this workaround. (Note that, as per the article, this problem only affects certain generations of Intel CPUs.)
Update: Upon further testing, I'm still getting can't connect to the gpg-agent even if I've already reset counters to prevent Windows Defender from hogging the CPU as explained above. For some reason I normally still have to manually run gpg-connect-agent. Now it may be that resetting the counters while gpg-agent was trying to connect allowed it to connect. And it could still be be that Windows Defender is stopping gpg-agent from connecting when my system starts up. But at this moment all I know is that 1) gpg-agent isn't starting up automatically, 2) I have to run gpg-connect-agent manually, and 3) even running gpg-connect-agent will time out unless I reset the CPU counters to stop Windows Defender from hogging the CPU.
Mine is a windows machine, and when I do git commit I get the following message. I have already configured gpg keys on my machine.
gpg: can't connect to the gpg-agent: IPC connect call failed
gpg: keydb_search failed: No agent running
gpg: skipped "BBB42EB62E25E8EB33AE2E65F40A504840B1C66B": No agent running
gpg: signing failed: No agent running
error: gpg failed to sign the data
fatal: failed to write commit object
Will Buffington answer worked for me.
I had to apply the command
gpg-connect-agent -v
repeatedly as shown below. And it worked in the third attempt.
Once the I get the message connection to agent established, I now ran the commit command again. Now its successful. Note the -S flag to sign my commits.
Update
This morning, it did not start even after 3 attempts. I had to double click the exe from its installed location.
I had the same problem. In my case, the gpg config files were somehow corrupted. To solve it, I have removed all the configurations inside ~/.gnupg (make sure to backup any keys that you still need). Then I have reinstalled gpg and everything worked well.
On WSL1 Ubuntu 20.04 following workaround available: https://github.com/microsoft/WSL/issues/5125#issuecomment-619097534
sudo add-apt-repository ppa:rafaeldtinoco/lp1871129
sudo apt update
sudo apt install libc6=2.31-0ubuntu8+lp1871129~1 -y
sudo apt-mark hold libc6
I had to use:
sudo apt autoremove gpg gnupg1 gnupg2
In windows subsystem Ubuntu 20 works these steps:
sudo apt remove gpg
sudo apt-get update -y
sudo apt-get install -y gnupg1
After that steps appear "Ok"
I had the same problem when I killed the agent. It was not able to connect to agent again. So I had to remove all gpg gpg-related packages, and reinstall. I had to remove gpg-agent as well.
so what I did
sudo apt remove gpg gpg-agent
sudo apt-get install -y gpg
I was able to connect without installing new software. In my case the issue was that the IPC file wasn't in the expected position.
Check if gpg-agent with ps -eaf | grep gpg is running and kill it if it is running with killall gpg-agent
Start gpg-agent with verbose
$ gpg-agent --daemon -v
...
GPG_AGENT_INFO=/tmp/.../S.gpg-agent; export GPG_AGENT_INFO
copy-paste the GPG_AGENT_INFO line, including the export, in the shell where you need the agent.

Postgres - FATAL: database files are incompatible with server

After restarting my MacBook Pro I am unable to start the database server:
could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
I checked the logs and the following line appears over and over again:
FATAL: database files are incompatible with server
DETAIL: The data directory was initialized by PostgreSQL version 9.2, which is not compatible with this version 9.0.4.
9.0.4 was the version that came preinstalled on the mac, 9.2[.4] is the version I installed via Homebrew.
As mentioned, this used to work before the restart, so it can't actually be a compiling issue. I also re-ran initdb /usr/local/var/postgres -E utf8 and the file still exists.
If you recently upgraded postgres to latest version, you can run the below command to upgrade your postgres data directory retaining all data:
brew postgresql-upgrade-database
The above command is taken from the output of brew info postgres
Note: this won't work for upgrading from 14 to 15 as of recent testing.
If you are looking for the nuclear option (delete all data and get a fresh database), you can do:
rm -rf /usr/local/var/postgres && initdb /usr/local/var/postgres -E utf8
and then you'll need to rake db:setup and rake db:migrate from your Rails app to get setup again.
Try this :
https://gist.github.com/joho/3735740
It worked perfectly for me.
In the end it also generates you 2 bash scripts to check your DB and remove the old cluster.
Really Awesome.
see: http://www.postgresql.org/docs/9.2/static/pgupgrade.html to understand more.
Found on internet, this solution work fine for me.
When I tried to start postgresql server after upgrade to OS X 10.10 Yosemite, I encountered with a next problem:
pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/pgsql_socket/.s.PGSQL.5432"?
Okay, lets take a look into server logs:
cat /usr/local/var/postgres/server.log
FATAL: database files are incompatible with server
DETAIL: The data directory was initialized by PostgreSQL version 9.2, which is not compatible with this version 9.3.5.
So, we need to follow a few steps after upgrade postgresql:
launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
mv /usr/local/var/postgres /usr/local/var/postgres92
brew update
brew upgrade postgresql
initdb /usr/local/var/postgres -E utf8
pg_upgrade -b /usr/local/Cellar/postgresql/9.2.3/bin -B /usr/local/Cellar/postgresql/9.3.5_1/bin -d /usr/local/var/postgres92 -D /usr/local/var/postgres
cp /usr/local/Cellar/postgresql/9.3.5_1/homebrew.mxcl.postgresql.plist ~/Library/LaunchAgents/
pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
rm -rf /usr/local/var/postgres92
That's it.
If you want to keep the previous version of postgres, use brew switch:
$ brew info postgresql
postgresql: stable 10.5 (bottled), HEAD
Object-relational database system
https://www.postgresql.org/
Conflicts with:
postgres-xc (because postgresql and postgres-xc install the same binaries.)
/usr/local/Cellar/postgresql/9.6.3 (3,259 files, 36.6MB)
Poured from bottle on 2017-07-09 at 22:15:41
/usr/local/Cellar/postgresql/10.5 (1,705 files, 20.8MB) *
Poured from bottle on 2018-11-04 at 15:13:13
$ brew switch postgresql 9.6.3
$ brew services stop postgresql
$ brew services start postgresql
Otherwise, consider this brew command to migrate existing data: brew postgresql-upgrade-database. Check out the source code.
As #Gowtham mentioned, you can solve this problem by executing a brew command
brew postgresql-upgrade-database
The above command is taken from the output of brew info postgres
However, don't forget to stop the postgres service before executing it, use the following command:
`brew services stop postgresql
you may have to start the service again.
So the final order of commands are:
brew services stop postgresql
brew postgresql-upgrade-database
brew services start postgresql
Similar to these answers (1, 2), my Postgres database files were incompatible to my Postgres version after upgrading to postgresql 13.3.
Unfortunately, upgrading my Postgres data directory failed.
$ brew postgresql-upgrade-database
...
Setting next OID for new cluster
*failure*
Consult the last few lines of "pg_upgrade_utility.log" for
the probable cause of the failure.
Failure, exiting
Error: Upgrading postgresql data from 12 to 13 failed!
==> Removing empty postgresql initdb database...
==> Moving postgresql data back from /usr/local/var/postgres.old to /usr/local/var/postgres...
Error: Failure while executing; `/usr/local/opt/postgresql/bin/pg_upgrade -r -b /usr/local/Cellar/postgresql#12/12.7/bin -B /usr/local/opt/postgresql/bin -d /usr/local/var/postgres.old -D /usr/local/var/postgres -j 8` exited with 1.
My workaround for this was to reinstall postgresql 12.7.
$ brew reinstall postgresql#12
$ brew services start postgresql#12
This can also occur when running a new Postgres in Docker, and your old volume isn't updated.
If you don't need to keep your data easiest is to clear the old volumes in the docker folder, in Linux that's here:
/var/lib/docker/volumes
It happened for me when I was trying to start Postgres12 with postgres11 mounted volume. Just deleting the mounted volume for postgres11 and restart worked for me.
Previously I was using:
docker run -d --name my_database -v /Users/champ/postgres:/var/lib/postgresql/data -p 54320:5432 postgres:11
I deleted /Users/champ/postgres and restarted postgres 12, using
docker run -d --name my_database -v /Users/champ/postgres:/var/lib/postgresql/data -p 54320:5432 postgres:12
brew info postgres will give you hints Like To migrate existing data from a previous major version of PostgreSQL run:
So in my case removing the old one rm -rf /usr/local/var/postgres.old and upgrading the DB brew postgresql-upgrade-database
A stale postmaster.pid file caused this for me.
Simply navigate to your postgres directory /Users/st/Library/Application Support/Postgres/, for me, that's:
cd '/Users/<username>/Library/Application Support/Postgres/var-10'
Then delete the file postmaster.pid. Restart postgres and it will work.
To me works with this command:
brew install --build-from-source postgresql#12
Then started Postgres:
brew services start postgresql#12
You can also check the port 5432 is listen:
netstat -nl |grep 5432

How can I start PostgreSQL server on Mac OS X?

Final update:
I had forgotten to run the initdb command.
By running this command
ps auxwww | grep postgres
I see that postgres is not running
> ps auxwww | grep postgres
remcat 1789 0.0 0.0 2434892 480 s000 R+ 11:28PM 0:00.00 grep postgres
This raises the question:
How do I start the PostgreSQL server?
Update:
> pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
server starting
sh: /usr/local/var/postgres/server.log: No such file or directory
Update 2:
The touch was not successful, so I did this instead:
> mkdir /usr/local/var/postgres
> vi /usr/local/var/postgres/server.log
> ls /usr/local/var/postgres/
server.log
But when I try to start the Ruby on Rails server, I still see this:
Is the server running on host "localhost" and accepting
TCP/IP connections on port 5432?
Update 3:
> pg_ctl -D /usr/local/var/postgres status
pg_ctl: no server running
Update 4:
I found that there wasn't any pg_hba.conf file (only file pg_hba.conf.sample), so I modified the sample and renamed it (to remover the .sample). Here are the contents:
# IPv4 local connections:
host all all 127.0.0.1/32 trust
# IPv6 local connections:
host all all ::1/128 trust
But I don't understand this:
> pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
server starting
> pg_ctl -D /usr/local/var/postgres status
pg_ctl: no server running
Also:
sudo find / -name postgresql.conf
find: /dev/fd/3: Not a directory
find: /dev/fd/4: Not a directory
Update 5:
sudo pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
Password:
pg_ctl: cannot be run as root
Please log in (using, e.g., "su") as the (unprivileged) user that will own the server process.
Update 6:
This seems odd:
> egrep 'listen|port' /usr/local/var/postgres/postgresql.conf
egrep: /usr/local/var/postgres/postgresql.conf: No such file or directory
Though, I did do this:
>sudo find / -name "*postgresql.conf*"
find: /dev/fd/3: Not a directory
find: /dev/fd/4: Not a directory
/usr/local/Cellar/postgresql/9.0.4/share/postgresql/postgresql.conf.sample
/usr/share/postgresql/postgresql.conf.sample
So I did this:
egrep 'listen|port' /usr/local/Cellar/postgresql/9.0.4/share/postgresql/postgresql.conf.sample
#listen_addresses = 'localhost' # what IP address(es) to listen on;
#port = 5432 # (change requires restart)
# supported by the operating system:
# %r = remote host and port
So I tried this:
> cp /usr/local/Cellar/postgresql/9.0.4/share/postgresql/postgresql.conf.sample /usr/local/Cellar/postgresql/9.0.4/share/postgresql/postgresql.conf
> cp /usr/share/postgresql/postgresql.conf.sample /usr/share/postgresql/postgresql.conf
I am still getting the same "Is the server running?" message.
The Homebrew package manager includes launchctl plists to start automatically. For more information, run brew info postgres.
Start manually
pg_ctl -D /usr/local/var/postgres start
Stop manually
pg_ctl -D /usr/local/var/postgres stop
Start automatically
"To have launchd start postgresql now and restart at login:"
brew services start postgresql
What is the result of pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start?
What is the result of pg_ctl -D /usr/local/var/postgres status?
Are there any error messages in the server.log?
Make sure tcp localhost connections are enabled in pg_hba.conf:
# IPv4 local connections:
host all all 127.0.0.1/32 trust
Check the listen_addresses and port in postgresql.conf:
egrep 'listen|port' /usr/local/var/postgres/postgresql.conf
#listen_addresses = 'localhost' # What IP address(es) to listen on;
#port = 5432 # (change requires restart)
Cleaning up
PostgreSQL was most likely installed via Homebrew, Fink, MacPorts or the EnterpriseDB installer.
Check the output of the following commands to determine which package manager it was installed with:
brew && brew list|grep postgres
fink && fink list|grep postgres
port && port installed|grep postgres
If you want to manually start and stop PostgreSQL (installed via Homebrew), the easiest way is:
brew services start postgresql
and
brew services stop postgresql
If you have a specific version, make sure to suffix the version. For example:
brew services start postgresql#10
I had almost the exact same issue, and you cited the initdb command as being the fix. This was also the solution for me, but I didn't see that anyone posted it here, so for those who are looking for it:
initdb /usr/local/var/postgres -E utf8
If your computer was abruptly restarted
You may want to start PG server but it was not.
First, you have to delete the file /usr/local/var/postgres/postmaster.pid Then you can restart the service using one of the many other mentioned methods depending on your install.
You can verify this by looking at the logs of Postgres to see what might be going on: tail -f /usr/local/var/postgres/server.log
For specific version:-
tail -f /usr/local/var/postgres#[VERSION_NUM]/server.log
Eg:
tail -f /usr/local/var/postgres#11/server.log
Another approach is using the lunchy gem (a wrapper for launchctl):
brew install postgresql
initdb /usr/local/var/postgres -E utf8
gem install lunchy
To start PostgreSQL:
lunchy start postgres
To stop PostgreSQL:
lunchy stop postgres
For further information, refer to: "How to Install PostgreSQL on a Mac With Homebrew and Lunchy"
Here my two cents: I made an alias for postgres pg_ctl and put it in file .bash_profile (my PostgreSQL version is 9.2.4, and the database path is /Library/PostgreSQL/9.2/data).
alias postgres.server="sudo -u postgres pg_ctl -D /Library/PostgreSQL/9.2/data"
Launch a new terminal.
And then? You can start/stop your PostgreSQL server with this:
postgres.server start
postgres.server stop
The cleanest way by far to start/stop/restart PostgreSQL if you have installed it through brew is to simply unload and/or load the launchd configuration file that comes with the installation:
launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
The first line will stop PostgreSQL and the second line will start it. There isn't any need to specify any data directories, etc. since everything is in that file.
To start the PostgreSQL server:
pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
To end the PostgreSQL server:
pg_ctl -D /usr/local/var/postgres stop -s -m fast
You can also create an alias via CLI to make it easier:
alias pg-start='pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start'
alias pg-stop='pg_ctl -D /usr/local/var/postgres stop -s -m fast'
With these you can just type "pg-start" to start PostgreSQL and "pg-stop" to shut it down.
For test purposes, I think PostgreSQL App is the best option!
Run an app, and the server is up and running.
Close the app, and the server goes down.
http://postgresapp.com/
If you have installed using Homebrew, the below command should be enough.
brew services restart postgresql
This sometimes might not work. In that case, the below two commands should definitely work:
rm /usr/local/var/postgres/postmaster.pid
pg_ctl -D /usr/local/var/postgres start
# Remove old database files (if there was any)
$ rm -rf /usr/local/var/postgres
# Install the binary
$ brew install postgresql
# init it
$ initdb /usr/local/var/postgres
# Start the PostgreSQL server
$ postgres -D /usr/local/var/postgres
# Create your database
$ createdb mydb
# Access the database
$ psql mydb
psql (9.0.1)
Type "help" for help.
Sometimes it's just the version which you are missing, and you are scratching your head unnecessarily.
If you are using a specific version of PostgreSQL, for example, PostgreSQL 10, then simply do
brew services start postgresql#10
brew services stop postgresql#10
The normal brew services start postgresql won't work without a version if you have installed it for a specific version from Homebrew.
When you install PostgreSQL using Homebrew,
brew install postgres
at the end of the output, you will see this methods to start the server:
To have launchd start postgresql at login:
ln -sfv /usr/local/opt/postgresql/*.plist ~/Library/LaunchAgents
Then to load postgresql now:
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
Or, if you don't want/need launchctl, you can just run:
postgres -D /usr/local/var/postgres
I think this is the best way.
You can add an alias into your .profile file for convenience.
I had the same problem and performed all updates from the first post. But after checking the log file,
/usr/local/var/postgres/server.log
I see the true cause:
FATAL: data directory "/usr/local/var/postgres" has group or world access
DETAIL: Permissions should be u=rwx (0700).
After changing permissions on this directory,
chmod 0700 /usr/local/var/postgres
the PostgreSQL server started.
Check the log file every time.
For a quick disposable test database, you can run the server in the foreground.
Initialize a new PostgreSQL database in a new directory:
mkdir db
initdb db -E utf8
createdb public
Start the server in the foreground (Ctrl + C to stop the server):
postgres -d db
In another shell session, connect to the server
psql -d public
If you didn't install it with Homebrew and directly from the Mac package, this worked for me for PostgreSQL 12 when using all the default locations, variables, etc.
$ sudo su postgres
bash-3.2$ /Library/PostgreSQL/12/bin/pg_ctl -D /Library/PostgreSQL/12/data/ stop
Variation on this answer: https://stackoverflow.com/a/13103603/2394728
initdb `brew --prefix`/var/postgres/data -E utf8`` && pg_ctl -D /usr/local/var/postgres/data -l logfile start
PostgreSQL is integrated in Server.app available through the App Store in Mac OS X v10.8 (Mountain Lion). That means that it is already configured, and you only need to launch it, and then create users and databases.
Tip: Do not start with defining $PGDATA and so on. Take file locations as is.
You would have this file:
/Library/Server/PostgreSQL/Config/org.postgresql.postgres.plist
To start:
sudo serveradmin start postgres
Process started with arguments:
/Applications/Server.app/Contents/ServerRoot/usr/bin/postgres_real -D /Library/Server/PostgreSQL/Data -c listen_addresses=127.0.0.1,::1 -c log_connections=on -c log_directory=/Library/Logs/PostgreSQL -c log_filename=PostgreSQL.log -c log_line_prefix=%t -c log_lock_waits=on -c log_statement=ddl -c logging_collector=on -c unix_socket_directory=/private/var/pgsql_socket -c unix_socket_group=_postgres -c unix_socket_permissions=0770
You can sudo:
sudo -u _postgres psql template1
Or connect:
psql -h localhost -U _postgres postgres
You can find the data directory, version, running status and so forth with
sudo serveradmin fullstatus postgres
For development purposes, one of the simplest ways is to install Postgres.app from the official site. It can be started/stopped from Applications folder or using the following commands in terminal:
# Start
open -a Postgres
# Stop
killall Postgres
killall postgres
This worked for me (macOS v10.13 (High Sierra)):
sudo -u postgres /Library/PostgreSQL/9.6/bin/pg_ctl start -D /Library/PostgreSQL/9.6/data
Or first
cd /Library/PostgreSQL/9.6/bin/
If you installed PostgreSQL using the EnterpriseDB installer, then what Kenial suggested is the way to go:
sudo -u postgres pg_ctl -D /Library/PostgreSQL/{version}/data start
sudo -u postgres pg_ctl -D /Library/PostgreSQL/{version}/data stop
Homebrew is the way!!
To start the service:
brew services start postgresql
To list it:
brew services list | grep postgres
To stop the service:
brew services stop postgresql
If you didn't install the Postgres server with Homebrew or installed using .dmg file, try this:
$ sudo su postgres
bash-3.2$ /Library/PostgreSQL/13/bin/pg_ctl -D /Library/PostgreSQL/13/data/ stop
For MacPorts, just use the load/unload command and the port name of the running server:
sudo port load postgresql96-server
- or -
sudo port unload postgresql96-server
so you don't have to remember where the /Library/LaunchDaemons/org.macports.postgresql96.plist file is located.
having installed Postgres with homebrew that is what I do to start postgres and keep it in foreground to see the logs:
/opt/homebrew/opt/postgresql/bin/postgres -D /opt/homebrew/var/postgres
install postgresql using brew: brew install postgresql, you can specify the version using "#" sign: brew install postgresql#14
start postgresql: brew services start postgresql or specific version brew services start postgresql#14
stop postgresql: brew services stop postgresql
$ brew upgrade postgres
fixed it for me.
That, of course, will upgrade your PostgreSQL version and update/install any dependencies.
Warning: Do this knowing that your PostgreSQL version will likely change. For me, that wasn't a big deal.
None of the previous answers fixed the issue for me, despite getting the same error messages.
I was able to get my instance back up and running by deleting the existing postmaster.pid file which was locked and was not allowing connections.
This worked for me every time, inspired by Craig Ringer:
brew install proctools
sudo pkill -u postgres
proctools includes pkill. If you don't have Homebrew: https://brew.sh/
After doing brew services restart postgresql.
It works best to:
brew services stop postgresql
brew postgresql-upgrade-database
brew services start postgresql
Then type: psql
it now runs this was after the error:
psql: error: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
The upgrade may be optional depending on the other dependencies your running.
Which means that rather than Restart using brew for in on mac os, Stop completely postgres and then start postgres and connect to your psql databaseName.
Hope this was useful.

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