RPi + Buildroot: random: crng init done (not enough entropy) - how to configure rng-tools
How could a possessed body begin to rot and decay while it is still alive?
Poisson distribution: why does time between events follow an exponential distribution?
Accidentally renamed tar.gz file to a non tar.gz file, will my file be messed up
What's the logic behind the the organization of Hamburg's bus transport into "rings"?
Old black and white movie: glowing black rocks slowly turn you into stone upon touch
Can you please explain this joke: "I'm going bananas is what I tell my bananas before I leave the house"?
I wrote a scene that the majority of my readers loved. How do I get back to that place while writing my new book?
Can a magnetic field of an object be stronger than its gravity?
PhD student with mental health issues and bad performance
How can Iron Man's suit withstand this?
Did Darth Vader wear the same suit for 20+ years?
Secure offsite backup, even in the case of hacker root access
Do adult Russians normally hand-write Cyrillic as cursive or as block letters?
How much water is needed to create a Katana capable of cutting flesh, bones and wood?
What do we gain with higher order logics?
Company is asking me to work from overseas, but wants me to take a paycut
Linux tr to convert vertical text to horizontal
Is the capacitor drawn or wired wrongly?
Traffic law UK, pedestrians
Did thousands of women die every year due to illegal abortions before Roe v. Wade?
Do manufacturers try make their components as close to ideal ones as possible?
Why is Colorado so different politically from nearby states?
What happens to foam insulation board after you pour concrete slab?
The ring of global sections of a regular scheme
RPi + Buildroot: random: crng init done (not enough entropy) - how to configure rng-tools
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
}
I'm designing a minimal custom Buildroot embedded OS for the RPi0w. My current iteration takes a very long time to fully boot - several minutes with a keyboard and mouse plugged in, and tens of minutes with no input devices. It hangs for a long time and then finally outputs the message:
random: crng init done
It's an embedded system with no sound-card or input devices so I presume that the random number generator is starved for entropy - it has to wait a long time to get enough noise before it will initialise.
I would like to install rng-tools to provide the extra entropy required, but I'm not sure how to configure it in Buildroot.
Looking for someone who has done this before in Buildroot who can offer assistance on what configuration files are necessary, how/when to start rngd (I'm using plain /etc/init.d scripts), what kernel modules need to be loaded to use the Raspberry Pi's builtin random generator, etc.
I'll continue trying to figure it out and answer my own question if necessary, but if someone wants to jump in with the info that would be fantastic!
raspberry-pi random buildroot
asked 25 mins ago
Jeremiah RoseJeremiah Rose
1011
New contributor
Jeremiah Rose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I'm designing a minimal custom Buildroot embedded OS for the RPi0w. My current iteration takes a very long time to fully boot - several minutes with a keyboard and mouse plugged in, and tens of minutes with no input devices. It hangs for a long time and then finally outputs the message:
random: crng init done
It's an embedded system with no sound-card or input devices so I presume that the random number generator is starved for entropy - it has to wait a long time to get enough noise before it will initialise.
I would like to install rng-tools to provide the extra entropy required, but I'm not sure how to configure it in Buildroot.
Looking for someone who has done this before in Buildroot who can offer assistance on what configuration files are necessary, how/when to start rngd (I'm using plain /etc/init.d scripts), what kernel modules need to be loaded to use the Raspberry Pi's builtin random generator, etc.
I'll continue trying to figure it out and answer my own question if necessary, but if someone wants to jump in with the info that would be fantastic!
raspberry-pi random buildroot
asked 25 mins ago
Jeremiah RoseJeremiah Rose
1011
New contributor
Jeremiah Rose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I'm designing a minimal custom Buildroot embedded OS for the RPi0w. My current iteration takes a very long time to fully boot - several minutes with a keyboard and mouse plugged in, and tens of minutes with no input devices. It hangs for a long time and then finally outputs the message:
random: crng init done
It's an embedded system with no sound-card or input devices so I presume that the random number generator is starved for entropy - it has to wait a long time to get enough noise before it will initialise.
I would like to install rng-tools to provide the extra entropy required, but I'm not sure how to configure it in Buildroot.
Looking for someone who has done this before in Buildroot who can offer assistance on what configuration files are necessary, how/when to start rngd (I'm using plain /etc/init.d scripts), what kernel modules need to be loaded to use the Raspberry Pi's builtin random generator, etc.
I'll continue trying to figure it out and answer my own question if necessary, but if someone wants to jump in with the info that would be fantastic!
raspberry-pi random buildroot
asked 25 mins ago
Jeremiah RoseJeremiah Rose
1011
New contributor
Jeremiah Rose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I'm designing a minimal custom Buildroot embedded OS for the RPi0w. My current iteration takes a very long time to fully boot - several minutes with a keyboard and mouse plugged in, and tens of minutes with no input devices. It hangs for a long time and then finally outputs the message:
random: crng init done
It's an embedded system with no sound-card or input devices so I presume that the random number generator is starved for entropy - it has to wait a long time to get enough noise before it will initialise.
I would like to install rng-tools to provide the extra entropy required, but I'm not sure how to configure it in Buildroot.
Looking for someone who has done this before in Buildroot who can offer assistance on what configuration files are necessary, how/when to start rngd (I'm using plain /etc/init.d scripts), what kernel modules need to be loaded to use the Raspberry Pi's builtin random generator, etc.
I'll continue trying to figure it out and answer my own question if necessary, but if someone wants to jump in with the info that would be fantastic!
raspberry-pi random buildroot
raspberry-pi random buildroot
asked 25 mins ago
Jeremiah RoseJeremiah Rose
1011
New contributor
Jeremiah Rose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 25 mins ago
Jeremiah RoseJeremiah Rose
1011
New contributor
Jeremiah Rose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 25 mins ago
Jeremiah RoseJeremiah Rose
1011
New contributor
Jeremiah Rose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 25 mins ago
Jeremiah RoseJeremiah Rose
1011
asked 25 mins ago
Jeremiah RoseJeremiah Rose
1011
1011
New contributor
Jeremiah Rose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Jeremiah Rose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "106"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Jeremiah Rose is a new contributor. Be nice, and check out our Code of Conduct.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f522271%2frpi-buildroot-random-crng-init-done-not-enough-entropy-how-to-configure%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Jeremiah Rose is a new contributor. Be nice, and check out our Code of Conduct.
Jeremiah Rose is a new contributor. Be nice, and check out our Code of Conduct.
Jeremiah Rose is a new contributor. Be nice, and check out our Code of Conduct.
Jeremiah Rose is a new contributor. Be nice, and check out our Code of Conduct.
Thanks for contributing an answer to Unix & Linux Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f522271%2frpi-buildroot-random-crng-init-done-not-enough-entropy-how-to-configure%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
