while working on my board I want to get to know the status of the bootup. I tried to look into many articles but didn't get any conclusion on how to toggle the GPIO led while booting up and detect the bootup status just like green led blinks on the Raspberry-pi. I too want to do the same for my board any references will be helpful.
Thank you in advance for your help.
it is working fine and I am able to execute it as per the requirement we need to create the service at the location
/lib/systemd/system/
being a root user we can create the service and
[Unit]
Description = Blink my LED
DefaultDependencies=no
[Service]
ExecStart=/usr/bin/python3 /<your location>/boot_status.py
[Install]
WantedBy=sysinit.target
can refer link for more details :
https://www.freedesktop.org/software/systemd/man/systemd.special.html
Related
I installed netspark on my computer and tried to remove it by removing every file and registery belongs to the program and windivert64.sys
Now Im getting reset for every http/s session, what can I do?
How can I find the driver that sends the reset?
I have win10
After I tried to manually search the services list in services.msc I found nothing.
I tried to look for SysInternalSuite programs and found autoruns.
This tool shows every driver loaded on boot.
the list of the driver was very short and I easily found the driver by the publisher description.
IIS 10 will not restart on my PC. When I navigate to localhost, I get a 'localhost refused to connect' message. After looking through the event viewer, it turns out that the issue is that the Windows Process Activation Service (WAS) will not start.
The error message given is:
'The Windows Process Activation Service (WAS) encountered an error while handling key generation. This will prevent WAS from starting corrently. The data field contains the error number.'
When I try to start the service manually from the services app, I get the following:
Has anyone experienced this issue before? Any help would be greatly appreciated, I've been trawling the internet for several days trying to find a solution to no avail.
We've run into this issue several times after recent Windows Updates. In all cases, the following worked (got from a Microsoft support rep):
Run the following from an admin Powershell prompt:
reg delete HKLM\SYSTEM\CurrentControlSet\Services\WAS\Parameters /v GenerateKeys /f
net start w3svc
The keys will be regenerated, then the IIS AppPools can be started
According to your error message, WAS can not access the machine key when start up. Usually, machine keys are used to encrypt sensitive information in config file, WAS will not be able to start if there is no machine key to use.
The easiest and most common method is to try to uninstall and reinstall WAS.
If it still can not start, try to delete the registry entry NanoSet with cmd.
If the above two methods are useless, you can refer to this to delete machine keys, let WAS create new one while starting.
If somebody is still fighting with this issue, please check Event Viewer under System filter and check for any logs related to WAS. In my case I found the following entry:
The Windows Process Activation Service (WAS) encountered an error while handling key generation. This will prevent WAS from starting currently. The data field contains the error number.
So I just started again CNG Key Isolation service and everything is working now.
If I change CPUAffinity= or CPUQuota= in a systemd unit configuration file such as postgresql#.service, when will the new settings come into effect? In particular, will I have to restart the service in order to see the service's processes executing on the intended CPUs and will they run there under guarantee?
According to the testing that I have just done (why, oh why, does the documentation not clarify this!), changing the CPUAffinity requires a reboot.
I tried changing the value and then
restarting processes - no effect
systemctl daemon-reload - no effect
systemctl daemon-reexec - no effect
reboot
Only the reboot effected the change to CPUAffinity.
Tested on CentOS 7.
Also, for those finding the documentation lacking, the CPU numbering goes from zero, you can specify ranges (such as 1-3 and multiples may be given either space or comma-delimnited).
You just need to reload the configuration (systemctl daemon-reload) then restart the service.
See for example here. There's no need to reboot the system like starfry suggests.
I tried to play with LowCardinality setting, I got a message saying that this is an experimental feature and I have to SET allow_experimental_low_cardinality_type = 1 in order to use it.
I executed this command inside clickhouse-client and then I restarted the server. But I got
clickhouse-server.service: Unit entered failed state
Now I am trying to find out how to disable this setting and make my clickhouse-server start again.
Can you help with this please ?
PS: The version I use is the 18.12.17 and I installed it on Linux Ubuntu 16.04
ClickHouse has different layers for settings. If you used SET <setting> = <value> then you set it for current session. You don't need to restart ClickHouse. Please, take a look here.
I suppose you faced with another problem during starting your server. There a bunch of reasons why. So, firstly try to recollect what were done in configs since last restart (because you have just applied changes by restarting server).
Digging into logs also an awesome idea. Don't hesitate to check other similar issues on github.com, for example like this one
I am trying to use h2o steam (running on localhost) to deploy a model. After importing the model from h2o flow, clicking the "deploy model" option in the "models" section of the project, filling out the resulting dialog box, and clicking the "deploy" button, the following messages are displayed:
At first I thought that it was because maybe I needed to start up the service builder on my own, so I started it up following the docs here, but still got the same error. Any suggestions would be appreciated. Thanks :)
Just make sure jetty HTTP server is running locally by executing the following in your shell:
java -jar var/master/assets/jetty-runner.jar var/master/assets/ROOT.war
Looking here, it seems like I would need to "override" some kind of default browser restriction for accessing localhost:8080 (which is what I assume steam is trying to do to launch the service builder (I don't know much about networking related stuff)). I got around this by launching steam with the command:
$ ./steam serve master --prediction-service-host=localhost --prediction-service-port-range=12345:22345
where the ports are some arbitrary range between (1025, 65535) which I got by word-searching the a page of the steam source code (line 182 as of the date of this posting).
Doing this lets me deploy the models through the steam dialog without any error messages. Again, I don't know much about networking related stuff, so if anyone has a better way to solve this problem (ie. allow access of localhost:8080) please post or comment. Thanks.