https://github.com/eriksjolund/podman-exit-status-docs
Podman exit status code documentation
https://github.com/eriksjolund/podman-exit-status-docs
documentation examples exitstatus podman systemd
Last synced: 4 months ago
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Podman exit status code documentation
- Host: GitHub
- URL: https://github.com/eriksjolund/podman-exit-status-docs
- Owner: eriksjolund
- License: apache-2.0
- Created: 2024-04-13T14:44:41.000Z (about 2 years ago)
- Default Branch: main
- Last Pushed: 2024-12-22T12:23:33.000Z (over 1 year ago)
- Last Synced: 2025-10-23T21:47:04.384Z (8 months ago)
- Topics: documentation, examples, exitstatus, podman, systemd
- Homepage:
- Size: 14.6 KB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# podman-exit-status-docs
## Introduction
When a process terminates, its parent process can retrieve an integer representing the
[exit status](https://en.wikipedia.org/wiki/Exit_status) of the terminated process.
This _exit status code_ is an integer number between `0` and `255`. The exit status code `0` means that the
process ran successfully. Any other exit status code means that the process failed.
### Example using a shell
1. Start a bash shell
2. Run a program that terminates with exit status `1`
```
bash -c "exit 1"
```
3. Check the exit status of the last command
```
echo $?
```
The command prints this output
```
1
```
## Podman exit status
Podman terminates with the same exit status as the command that was started in the container.
| command | podman exit status |
| -- | -- |
| podman run alpine sh -c "exit 0" | 0 |
| podman run alpine sh -c "exit 1" | 1 |
| podman run alpine sh -c "exit 2" | 2 |
| podman run alpine sh -c "exit 3" | 3 |
| podman run alpine sh -c "exit 4" | 4 |
| ... | ... |
| podman run alpine sh -c "exit 254" | 254 |
| podman run alpine sh -c "exit 255" | 255 |
(The lines for 5-253 were left out of the table for brevity)
## Podman exit status when using `--detach`
Podman always terminates with exit status code `0` when the option
__--detach__ is given to the __podman run__ command.
| command | podman exit status |
| -- | -- |
| podman run --detach alpine sh -c "exit 0" | 0 |
| podman run --detach alpine sh -c "exit 1" | 0 |
| podman run --detach alpine sh -c "exit 2" | 0 |
| podman run --detach alpine sh -c "exit 3" | 0 |
| podman run --detach alpine sh -c "exit 4" | 0 |
| ... | ... |
| podman run --detach alpine sh -c "exit 254" | 0 |
| podman run --detach alpine sh -c "exit 255" | 0 |
(The lines for 5-253 were left out of the table for brevity)
Podman will in detached mode terminate right
away after starting the container.
Podman does not wait for the termination of the container process,
so when Podman terminates it does not know of any container command _exit status code_.
If `podman run` has not been given the option `--rm`, then the helper program `conmon`
will save the information about the container exit status.
The container exit status can later be shown with
```
podman container inspect CTR -f "{{.State.ExitCode}}"
```
__Example:__
The container command terminates with exit status code `8`.
__podman__ terminates with exit status code `0`.
The exit status code `8` can later be shown with __podman container inspect__
```
$ podman run --detach --name mytest1 alpine sh -c "exit 8"
a42fec56914f777c7c79f5baad9ba169c3686177e92436181959e2fc1946eddd
$ echo $?
0
$ podman container inspect mytest1 -f "{{.State.ExitCode}}"
8
```
If we run the same example but add `--rm`, then the container
is removed when it is stopped. The `podman container inspect`
will thus fail because the container does not exist:
```
$ podman run --detach --rm --name mytest2 alpine sh -c "exit 8"
a42fec56914f777c7c79f5baad9ba169c3686177e92436181959e2fc1946eddd
$ echo $?
0
$ podman container inspect mytest2 -f "{{.State.ExitCode}}"
Error: no such container mytest2
```
## Internal Podman error
In case Podman is not able to run the command, Podman uses a few exit status codes to indicate what went wrong.
| internal Podman error | podman exit status |
| -- | -- |
| The error is with Podman itself | 125 |
| The container command cannot be invoked | 126 |
| The container command cannot be found | 127 |
__Example:__
Execute Podman with a command-line flag that does not exist:
```
$ podman run --foo alpine
Error: unknown flag: --foo
See 'podman run --help'
$ echo $?
125
```
__Example:__
Specify a container command that cannot be invoked. The argument `/etc` is a directory and not an executable.
```
$ podman run alpine /etc
Error: crun: open executable: Operation not permitted: OCI permission denied
$ echo $?
126
```
__Example:__
Specify a container command that does not exist:
```
$ podman run --rm alpine asdfasdfsdf
Error: crun: executable file `asdfasdfsdf` not found in $PATH: No such file or directory: OCI runtime attempted to invoke a command that was not found
$ echo $?
127
```
Note that the podman exit status codes `125`, `126`, `127` can originate either from an internal Podman error or from the container command
having this exit status.
__Example:__
```
$ podman run alpine sh -c "exit 125"
$ echo $?
125
$ podman run alpine sh -c "exit 126"
$ echo $?
126
$ podman run alpine sh -c "exit 127"
$ echo $?
127
```
## Main process exit status in systemd service
When __podman run__ is executed in a systemd service that was generated from a quadlet file, the systemd service is configured with
```
Type=notify
```
For more information, see [podman-systemd.unit(5)](https://docs.podman.io/en/latest/markdown/podman-systemd.unit.5.html) and [systemd.service(5)](https://www.freedesktop.org/software/systemd/man/latest/systemd.service.html).
When systemd starts such a service by executing the __podman run__ command that is set in `ExecStart=`, systemd sees the `podman` process as the main process of the service.
The `podman` process later notifies systemd that instead a `conmon` process should become the main process.
__Example:__ Show the `ExecStart=` configuration of a systemd service generated from a quadlet
Click me to show the example
1. `sudo useradd test`
1. `sudo machinectl shell --uid test`
1. `mkdir -p ~/.config/containers/systemd`
1. Create the file _~/.config/containers/systemd/test.container_ with the contents
```
[Container]
Image=docker.io/library/alpine
Exec=sleep inf
```
1. Reload the systemd configuration
```
systemctl --user daemon-reload
```
1. Show the generated `ExecStart=` configuration
```
systemctl --user cat test.service | grep ExecStart=
```
The command prints the output
```
ExecStart=/usr/bin/podman run --name=systemd-%N --cidfile=%t/%N.cid --replace --rm --cgroups=split --sdnotify=conmon -d localhost/exit sleep inf
```
The container process is started like this.
``` mermaid
stateDiagram-v2
systemd --> podman: fork/exec
state "OCI runtime" as s2
podman --> conmon: double fork/exec
conmon --> s2: fork/exec
s2 --> container: exec
```
1. __systemd__ starts the __podman__ process with fork/exec.
2. __podman__ process starts the __conmon__ process with fork/exec.
3. The __podman__ process will terminate when it has started the __conmon__ process.
Before doing so the podman process notifies __systemd__ that the conmon process should now be the main process.
The __podman__ process notifies __systemd__ the PID of conmon by calling `sd_notify()` with the message `MAINPID=`.
4. __conmon__ process starts __OCI runtime__ with fork/exec.
5. __OCI runtime__ starts the container process with exec.
The `conmon` process stays around waiting for the container process to terminate.
Conmon will check the exit status code of the container process and then conmon exits with the same exit status code.
If it is a non-zero exit status code, __systemd__ will write the exit status code to the systemd journal log.
In addition to that __systemd__ appends a text annotation describing the exit status code.
| main process exit status | systemd log annotation |
| -- | -- |
| 1 | /FAILURE |
| 2 | /INVALIDARGUMENT |
| 3 | /NOTIMPLEMENTED |
| 4 | /NOPERMISSION |
| 5 | /NOTINSTALLED |
| 6 | /NOTCONFIGURED |
| 7 | /NOTRUNNING |
| 65 | /DATAERR |
| 66 | /NOINPUT |
| 67 | /NOUSER |
| 68 | /NOHOST |
| 69 | /UNAVAILABLE |
| 70 | /SOFTWARE |
| 71 | /OSERR |
| 72 | /OSFILE |
| 73 | /CANTCREAT |
| 74 | /IOERR |
| 75 | /TEMPFAIL |
| 76 | /PROTOCOL |
| 77 | /NOPERM |
| 78 | /CONFIG |
For all other non-zero error status codes (8-64, 79-255) systemd appends the text string `/n/a` meaning no
annotation is available for the error status code.
#### Example systemd service generated from a quadlet
The container command is configured to terminate with the exit status code `4`.
1. `sudo useradd test`
1. `sudo machinectl shell --uid test`
1. `mkdir -p ~/.config/containers/systemd`
1. Create the file _~/.config/containers/systemd/test.container_ with the contents
```
[Container]
Image=localhost/exit
Exec=sh -c "exit 4"
```
1. Reload the systemd configuration
```
systemctl --user daemon-reload
```
1. Start the service
```
systemctl --user start test.service
```
1. Check the journal log
```
journalctl -q --user --no-pager -xeu test.service | grep status=
```
The command prints the output
```
Apr 13 09:38:11 localhost.localdomain systemd[2877]: test.service: Main process exited, code=exited, status=4/NOPERMISSION
```
The log message from systemd contains the annotation `/NOPERMISSION`
Note that the systemd annotation text can be misleading. For example `status=4/NOPERMISSION` seen in a journal log
merely indicates that the container command terminated with error status code 4. It is unclear whether the error was
really caused by a permission issue.
### Complete list of systemd exit status annotations
For completeness, here is a table showing all exit status codes and the text systemd writes to the systemd journal log.
| main process exit status | systemd service log output |
| -- | -- |
| 0 | |
| 1 | Main process exited, code=exited, status=1/FAILURE |
| 2 | Main process exited, code=exited, status=2/INVALIDARGUMENT |
| 3 | Main process exited, code=exited, status=3/NOTIMPLEMENTED |
| 4 | Main process exited, code=exited, status=4/NOPERMISSION |
| 5 | Main process exited, code=exited, status=5/NOTINSTALLED |
| 6 | Main process exited, code=exited, status=6/NOTCONFIGURED |
| 7 | Main process exited, code=exited, status=7/NOTRUNNING |
| 8 | Main process exited, code=exited, status=8/n/a |
| 9 | Main process exited, code=exited, status=9/n/a |
| 10 | Main process exited, code=exited, status=10/n/a |
| 11 | Main process exited, code=exited, status=11/n/a |
| 12 | Main process exited, code=exited, status=12/n/a |
| 13 | Main process exited, code=exited, status=13/n/a |
| 14 | Main process exited, code=exited, status=14/n/a |
| 15 | Main process exited, code=exited, status=15/n/a |
| 16 | Main process exited, code=exited, status=16/n/a |
| 17 | Main process exited, code=exited, status=17/n/a |
| 18 | Main process exited, code=exited, status=18/n/a |
| 19 | Main process exited, code=exited, status=19/n/a |
| 20 | Main process exited, code=exited, status=20/n/a |
| 21 | Main process exited, code=exited, status=21/n/a |
| 22 | Main process exited, code=exited, status=22/n/a |
| 23 | Main process exited, code=exited, status=23/n/a |
| 24 | Main process exited, code=exited, status=24/n/a |
| 25 | Main process exited, code=exited, status=25/n/a |
| 26 | Main process exited, code=exited, status=26/n/a |
| 27 | Main process exited, code=exited, status=27/n/a |
| 28 | Main process exited, code=exited, status=28/n/a |
| 29 | Main process exited, code=exited, status=29/n/a |
| 30 | Main process exited, code=exited, status=30/n/a |
| 31 | Main process exited, code=exited, status=31/n/a |
| 32 | Main process exited, code=exited, status=32/n/a |
| 33 | Main process exited, code=exited, status=33/n/a |
| 34 | Main process exited, code=exited, status=34/n/a |
| 35 | Main process exited, code=exited, status=35/n/a |
| 36 | Main process exited, code=exited, status=36/n/a |
| 37 | Main process exited, code=exited, status=37/n/a |
| 38 | Main process exited, code=exited, status=38/n/a |
| 39 | Main process exited, code=exited, status=39/n/a |
| 40 | Main process exited, code=exited, status=40/n/a |
| 41 | Main process exited, code=exited, status=41/n/a |
| 42 | Main process exited, code=exited, status=42/n/a |
| 43 | Main process exited, code=exited, status=43/n/a |
| 44 | Main process exited, code=exited, status=44/n/a |
| 45 | Main process exited, code=exited, status=45/n/a |
| 46 | Main process exited, code=exited, status=46/n/a |
| 47 | Main process exited, code=exited, status=47/n/a |
| 48 | Main process exited, code=exited, status=48/n/a |
| 49 | Main process exited, code=exited, status=49/n/a |
| 50 | Main process exited, code=exited, status=50/n/a |
| 51 | Main process exited, code=exited, status=51/n/a |
| 52 | Main process exited, code=exited, status=52/n/a |
| 53 | Main process exited, code=exited, status=53/n/a |
| 54 | Main process exited, code=exited, status=54/n/a |
| 55 | Main process exited, code=exited, status=55/n/a |
| 56 | Main process exited, code=exited, status=56/n/a |
| 57 | Main process exited, code=exited, status=57/n/a |
| 58 | Main process exited, code=exited, status=58/n/a |
| 59 | Main process exited, code=exited, status=59/n/a |
| 60 | Main process exited, code=exited, status=60/n/a |
| 61 | Main process exited, code=exited, status=61/n/a |
| 62 | Main process exited, code=exited, status=62/n/a |
| 63 | Main process exited, code=exited, status=63/n/a |
| 64 | Main process exited, code=exited, status=64/n/a |
| 65 | Main process exited, code=exited, status=65/DATAERR |
| 66 | Main process exited, code=exited, status=66/NOINPUT |
| 67 | Main process exited, code=exited, status=67/NOUSER |
| 68 | Main process exited, code=exited, status=68/NOHOST |
| 69 | Main process exited, code=exited, status=69/UNAVAILABLE |
| 70 | Main process exited, code=exited, status=70/SOFTWARE |
| 71 | Main process exited, code=exited, status=71/OSERR |
| 72 | Main process exited, code=exited, status=72/OSFILE |
| 73 | Main process exited, code=exited, status=73/CANTCREAT |
| 74 | Main process exited, code=exited, status=74/IOERR |
| 75 | Main process exited, code=exited, status=75/TEMPFAIL |
| 76 | Main process exited, code=exited, status=76/PROTOCOL |
| 77 | Main process exited, code=exited, status=77/NOPERM |
| 78 | Main process exited, code=exited, status=78/CONFIG |
| 79 | Main process exited, code=exited, status=79/n/a |
| 80 | Main process exited, code=exited, status=80/n/a |
| 81 | Main process exited, code=exited, status=81/n/a |
| 82 | Main process exited, code=exited, status=82/n/a |
| 83 | Main process exited, code=exited, status=83/n/a |
| 84 | Main process exited, code=exited, status=84/n/a |
| 85 | Main process exited, code=exited, status=85/n/a |
| 86 | Main process exited, code=exited, status=86/n/a |
| 87 | Main process exited, code=exited, status=87/n/a |
| 88 | Main process exited, code=exited, status=88/n/a |
| 89 | Main process exited, code=exited, status=89/n/a |
| 90 | Main process exited, code=exited, status=90/n/a |
| 91 | Main process exited, code=exited, status=91/n/a |
| 92 | Main process exited, code=exited, status=92/n/a |
| 93 | Main process exited, code=exited, status=93/n/a |
| 94 | Main process exited, code=exited, status=94/n/a |
| 95 | Main process exited, code=exited, status=95/n/a |
| 96 | Main process exited, code=exited, status=96/n/a |
| 97 | Main process exited, code=exited, status=97/n/a |
| 98 | Main process exited, code=exited, status=98/n/a |
| 99 | Main process exited, code=exited, status=99/n/a |
| 100 | Main process exited, code=exited, status=100/n/a |
| 101 | Main process exited, code=exited, status=101/n/a |
| 102 | Main process exited, code=exited, status=102/n/a |
| 103 | Main process exited, code=exited, status=103/n/a |
| 104 | Main process exited, code=exited, status=104/n/a |
| 105 | Main process exited, code=exited, status=105/n/a |
| 106 | Main process exited, code=exited, status=106/n/a |
| 107 | Main process exited, code=exited, status=107/n/a |
| 108 | Main process exited, code=exited, status=108/n/a |
| 109 | Main process exited, code=exited, status=109/n/a |
| 110 | Main process exited, code=exited, status=110/n/a |
| 111 | Main process exited, code=exited, status=111/n/a |
| 112 | Main process exited, code=exited, status=112/n/a |
| 113 | Main process exited, code=exited, status=113/n/a |
| 114 | Main process exited, code=exited, status=114/n/a |
| 115 | Main process exited, code=exited, status=115/n/a |
| 116 | Main process exited, code=exited, status=116/n/a |
| 117 | Main process exited, code=exited, status=117/n/a |
| 118 | Main process exited, code=exited, status=118/n/a |
| 119 | Main process exited, code=exited, status=119/n/a |
| 120 | Main process exited, code=exited, status=120/n/a |
| 121 | Main process exited, code=exited, status=121/n/a |
| 122 | Main process exited, code=exited, status=122/n/a |
| 123 | Main process exited, code=exited, status=123/n/a |
| 124 | Main process exited, code=exited, status=124/n/a |
| 125 | Main process exited, code=exited, status=125/n/a |
| 126 | Main process exited, code=exited, status=126/n/a |
| 127 | Main process exited, code=exited, status=127/n/a |
| 128 | Main process exited, code=exited, status=128/n/a |
| 129 | Main process exited, code=exited, status=129/n/a |
| 130 | Main process exited, code=exited, status=130/n/a |
| 131 | Main process exited, code=exited, status=131/n/a |
| 132 | Main process exited, code=exited, status=132/n/a |
| 133 | Main process exited, code=exited, status=133/n/a |
| 134 | Main process exited, code=exited, status=134/n/a |
| 135 | Main process exited, code=exited, status=135/n/a |
| 136 | Main process exited, code=exited, status=136/n/a |
| 137 | Main process exited, code=exited, status=137/n/a |
| 138 | Main process exited, code=exited, status=138/n/a |
| 139 | Main process exited, code=exited, status=139/n/a |
| 140 | Main process exited, code=exited, status=140/n/a |
| 141 | Main process exited, code=exited, status=141/n/a |
| 142 | Main process exited, code=exited, status=142/n/a |
| 143 | Main process exited, code=exited, status=143/n/a |
| 144 | Main process exited, code=exited, status=144/n/a |
| 145 | Main process exited, code=exited, status=145/n/a |
| 146 | Main process exited, code=exited, status=146/n/a |
| 147 | Main process exited, code=exited, status=147/n/a |
| 148 | Main process exited, code=exited, status=148/n/a |
| 149 | Main process exited, code=exited, status=149/n/a |
| 150 | Main process exited, code=exited, status=150/n/a |
| 151 | Main process exited, code=exited, status=151/n/a |
| 152 | Main process exited, code=exited, status=152/n/a |
| 153 | Main process exited, code=exited, status=153/n/a |
| 154 | Main process exited, code=exited, status=154/n/a |
| 155 | Main process exited, code=exited, status=155/n/a |
| 156 | Main process exited, code=exited, status=156/n/a |
| 157 | Main process exited, code=exited, status=157/n/a |
| 158 | Main process exited, code=exited, status=158/n/a |
| 159 | Main process exited, code=exited, status=159/n/a |
| 160 | Main process exited, code=exited, status=160/n/a |
| 161 | Main process exited, code=exited, status=161/n/a |
| 162 | Main process exited, code=exited, status=162/n/a |
| 163 | Main process exited, code=exited, status=163/n/a |
| 164 | Main process exited, code=exited, status=164/n/a |
| 165 | Main process exited, code=exited, status=165/n/a |
| 166 | Main process exited, code=exited, status=166/n/a |
| 167 | Main process exited, code=exited, status=167/n/a |
| 168 | Main process exited, code=exited, status=168/n/a |
| 169 | Main process exited, code=exited, status=169/n/a |
| 170 | Main process exited, code=exited, status=170/n/a |
| 171 | Main process exited, code=exited, status=171/n/a |
| 172 | Main process exited, code=exited, status=172/n/a |
| 173 | Main process exited, code=exited, status=173/n/a |
| 174 | Main process exited, code=exited, status=174/n/a |
| 175 | Main process exited, code=exited, status=175/n/a |
| 176 | Main process exited, code=exited, status=176/n/a |
| 177 | Main process exited, code=exited, status=177/n/a |
| 178 | Main process exited, code=exited, status=178/n/a |
| 179 | Main process exited, code=exited, status=179/n/a |
| 180 | Main process exited, code=exited, status=180/n/a |
| 181 | Main process exited, code=exited, status=181/n/a |
| 182 | Main process exited, code=exited, status=182/n/a |
| 183 | Main process exited, code=exited, status=183/n/a |
| 184 | Main process exited, code=exited, status=184/n/a |
| 185 | Main process exited, code=exited, status=185/n/a |
| 186 | Main process exited, code=exited, status=186/n/a |
| 187 | Main process exited, code=exited, status=187/n/a |
| 188 | Main process exited, code=exited, status=188/n/a |
| 189 | Main process exited, code=exited, status=189/n/a |
| 190 | Main process exited, code=exited, status=190/n/a |
| 191 | Main process exited, code=exited, status=191/n/a |
| 192 | Main process exited, code=exited, status=192/n/a |
| 193 | Main process exited, code=exited, status=193/n/a |
| 194 | Main process exited, code=exited, status=194/n/a |
| 195 | Main process exited, code=exited, status=195/n/a |
| 196 | Main process exited, code=exited, status=196/n/a |
| 197 | Main process exited, code=exited, status=197/n/a |
| 198 | Main process exited, code=exited, status=198/n/a |
| 199 | Main process exited, code=exited, status=199/n/a |
| 200 | Main process exited, code=exited, status=200/n/a |
| 201 | Main process exited, code=exited, status=201/n/a |
| 202 | Main process exited, code=exited, status=202/n/a |
| 203 | Main process exited, code=exited, status=203/n/a |
| 204 | Main process exited, code=exited, status=204/n/a |
| 205 | Main process exited, code=exited, status=205/n/a |
| 206 | Main process exited, code=exited, status=206/n/a |
| 207 | Main process exited, code=exited, status=207/n/a |
| 208 | Main process exited, code=exited, status=208/n/a |
| 209 | Main process exited, code=exited, status=209/n/a |
| 210 | Main process exited, code=exited, status=210/n/a |
| 211 | Main process exited, code=exited, status=211/n/a |
| 212 | Main process exited, code=exited, status=212/n/a |
| 213 | Main process exited, code=exited, status=213/n/a |
| 214 | Main process exited, code=exited, status=214/n/a |
| 215 | Main process exited, code=exited, status=215/n/a |
| 216 | Main process exited, code=exited, status=216/n/a |
| 217 | Main process exited, code=exited, status=217/n/a |
| 218 | Main process exited, code=exited, status=218/n/a |
| 219 | Main process exited, code=exited, status=219/n/a |
| 220 | Main process exited, code=exited, status=220/n/a |
| 221 | Main process exited, code=exited, status=221/n/a |
| 222 | Main process exited, code=exited, status=222/n/a |
| 223 | Main process exited, code=exited, status=223/n/a |
| 224 | Main process exited, code=exited, status=224/n/a |
| 225 | Main process exited, code=exited, status=225/n/a |
| 226 | Main process exited, code=exited, status=226/n/a |
| 227 | Main process exited, code=exited, status=227/n/a |
| 228 | Main process exited, code=exited, status=228/n/a |
| 229 | Main process exited, code=exited, status=229/n/a |
| 230 | Main process exited, code=exited, status=230/n/a |
| 231 | Main process exited, code=exited, status=231/n/a |
| 232 | Main process exited, code=exited, status=232/n/a |
| 233 | Main process exited, code=exited, status=233/n/a |
| 234 | Main process exited, code=exited, status=234/n/a |
| 235 | Main process exited, code=exited, status=235/n/a |
| 236 | Main process exited, code=exited, status=236/n/a |
| 237 | Main process exited, code=exited, status=237/n/a |
| 238 | Main process exited, code=exited, status=238/n/a |
| 239 | Main process exited, code=exited, status=239/n/a |
| 240 | Main process exited, code=exited, status=240/n/a |
| 241 | Main process exited, code=exited, status=241/n/a |
| 242 | Main process exited, code=exited, status=242/n/a |
| 243 | Main process exited, code=exited, status=243/n/a |
| 244 | Main process exited, code=exited, status=244/n/a |
| 245 | Main process exited, code=exited, status=245/n/a |
| 246 | Main process exited, code=exited, status=246/n/a |
| 247 | Main process exited, code=exited, status=247/n/a |
| 248 | Main process exited, code=exited, status=248/n/a |
| 249 | Main process exited, code=exited, status=249/n/a |
| 250 | Main process exited, code=exited, status=250/n/a |
| 251 | Main process exited, code=exited, status=251/n/a |
| 252 | Main process exited, code=exited, status=252/n/a |
| 253 | Main process exited, code=exited, status=253/n/a |
| 254 | Main process exited, code=exited, status=254/n/a |
| 255 | Main process exited, code=exited, status=255/n/a |
TODO: Describe the meaning of the following list:
Run command
```
systemd-analyze --no-pager exit-status
```
The following output is printed
```
NAME STATUS CLASS
SUCCESS 0 libc
FAILURE 1 libc
INVALIDARGUMENT 2 LSB
NOTIMPLEMENTED 3 LSB
NOPERMISSION 4 LSB
NOTINSTALLED 5 LSB
NOTCONFIGURED 6 LSB
NOTRUNNING 7 LSB
USAGE 64 BSD
DATAERR 65 BSD
NOINPUT 66 BSD
NOUSER 67 BSD
NOHOST 68 BSD
UNAVAILABLE 69 BSD
SOFTWARE 70 BSD
OSERR 71 BSD
OSFILE 72 BSD
CANTCREAT 73 BSD
IOERR 74 BSD
TEMPFAIL 75 BSD
PROTOCOL 76 BSD
NOPERM 77 BSD
CONFIG 78 BSD
CHDIR 200 systemd
NICE 201 systemd
FDS 202 systemd
EXEC 203 systemd
MEMORY 204 systemd
LIMITS 205 systemd
OOM_ADJUST 206 systemd
SIGNAL_MASK 207 systemd
STDIN 208 systemd
STDOUT 209 systemd
CHROOT 210 systemd
IOPRIO 211 systemd
TIMERSLACK 212 systemd
SECUREBITS 213 systemd
SETSCHEDULER 214 systemd
CPUAFFINITY 215 systemd
GROUP 216 systemd
USER 217 systemd
CAPABILITIES 218 systemd
CGROUP 219 systemd
SETSID 220 systemd
CONFIRM 221 systemd
STDERR 222 systemd
PAM 224 systemd
NETWORK 225 systemd
NAMESPACE 226 systemd
NO_NEW_PRIVILEGES 227 systemd
SECCOMP 228 systemd
SELINUX_CONTEXT 229 systemd
PERSONALITY 230 systemd
APPARMOR 231 systemd
ADDRESS_FAMILIES 232 systemd
RUNTIME_DIRECTORY 233 systemd
CHOWN 235 systemd
SMACK_PROCESS_LABEL 236 systemd
KEYRING 237 systemd
STATE_DIRECTORY 238 systemd
CACHE_DIRECTORY 239 systemd
LOGS_DIRECTORY 240 systemd
CONFIGURATION_DIRECTORY 241 systemd
NUMA_POLICY 242 systemd
CREDENTIALS 243 systemd
BPF 244 systemd
KSM 245 systemd
EXCEPTION 255 systemd
```