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fix draft: Swap on SSD done right

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Ali Mürteza Yeşil 2020-07-22 22:40:35 +06:00
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title: Swap on SSD done right
date: 2020-07-26
status: draft

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<h1>Archives for Ali Murteza Yesil</h1>
<dl>
<dt>Sun 26 July 2020</dt>
<dd><a href="https://murtezayesil.me/swap-on-ssd-done-right.html">Swap on SSD done right</a></dd>
<dt>Wed 22 July 2020</dt>
<dd><a href="https://murtezayesil.me/adb_vendor_keys-is-not-set.html">$ADB_VENDOR_KEYS is not set</a></dd>
<dt>Mon 20 July 2020</dt>

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<h1 class="entry-title"><a href="https://murtezayesil.me/swap-on-ssd-done-right.html">Swap on SSD done right</a></h1>
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<span>Sun 26 July 2020</span>
<span>| in <a href="https://murtezayesil.me/category/draft.html">draft</a></span>
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title="Permalink to $ADB_VENDOR_KEYS is not set">$ADB_VENDOR_KEYS is not set</a></h1>
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<h1 class="entry-title"><a href="https://murtezayesil.me/adb_vendor_keys-is-not-set.html">$ADB_VENDOR_KEYS is not set</a></h1>
<footer class="post-info">
<span>Wed 22 July 2020</span>
<span>| in <a href="https://murtezayesil.me/category/tech.html">Tech</a></span>
<span>| tags: <a href="https://murtezayesil.me/tag/android.html">android</a><a href="https://murtezayesil.me/tag/error.html">error</a><a href="https://murtezayesil.me/tag/100daystooffload.html">100DaysToOffload</a></span> <span>| Day <strong>7</strong> of #100DaysToOffload</span>
</footer><!-- /.post-info --> </div><!-- /.entry-content -->
</article></li>
</footer><!-- /.post-info --><h2>Story</h2>
<p>I like <a href="https://github.com/Genymobile/scrcpy" title="scrcpy by Genymobile - GitHub">scrcpy</a>. It allows me to cast my phone to computer and use it ther thanks to cable technology (wifi works too). So, after hopping to <img src="https://fosstodon.b-cdn.net/custom_emojis/images/000/025/123/static/a76f54a7dbcd8afd.png" width="15em" height="15em"> Pop_OS! I reinstalled adb and scrcpy.
But this time scrcpy didn't work. Instead it throw this error:<br>
<blockquote style="font-style: normal;">
<code>
adb: error: failed to get feature set: device unauthorized.<br>
This adb server's $ADB_VENDOR_KEYS is not set<br>
Try 'adb kill-server' if that seems wrong.<br>
Otherwise check for a confirmation dialog on your device.<br>
ERROR: "adb push" returned with value 1
</code>
</blockquote> </p>
<h2>Easy way | Grant access using prompt on the phone</h2>
<p>After enabling <a href="https://www.howtogeek.com/129728/how-to-access-the-developer-options-menu-and-enable-usb-debugging-on-android-4.2/">USB debugging in Developer options</a> connect phone to computer and run <code>scrcpy</code>. Phone should prompt you for granting access to computer. All you have to do is accept and connection will be granted 🎉️</p>
<hr>
<p>This prompt didn't appear on my phone. As it turns out, that prompt doesn't works as expected on some custom ROMS. After some digging online, I came across <a href="https://stackoverflow.com/a/26309956">this answer on stack <strong>overflow</strong></a>. Which leads to a <a href="https://android.googlesource.com/platform/system/core/+/d5fcafaf41f8ec90986c813f75ec78402096af2d">commit message for (new) adb authentication</a> implemented in 2012. This prompt copies ~/.android/adbkey.pub on computer, <code>$ADB_VENDOR_KEYS</code>, to <code>/data/misc/adb/adb_keys</code> file in phone's memory. since prompt isn't working for me I have to add that key manually 😕️</p>
<h2>Littler harder way | copy-paste using Termux + root</h2>
<p>Since <code>/data/misc/adb/adb_keys</code> file is offlimits for the user, we need root priviledges for this method.</p>
<ol>
<li>Copy ~/.android/adbkey.pub to phone's memory</li>
<li>Open Termux and install sudo &gt; <code>pkg install tsu</code></li>
<li>Navigate to where file adbkey.pub is. I'm using Redmi Note 4 and its <code>/sdcard</code> directory is used for .<br>
File is at <code>/sdcard/adbkey.pub</code> in my case &gt; <code>cd /sdcard</code></li>
<li>Copy <code>adbkey.pub</code> to <code>/data/misc/adb/adb_keys</code> with sudo priviledges &gt; <code>sudo cp adbkey.pub /data/misc/adb/adb_keys</code> </li>
<li>Double check if content of <code>/data/misc/adb/adb_keys</code> on phone and <code>~/.android/adbkey.pub</code> on computer are the same</li>
<li>Enjoy 😊️</li>
</ol>
<video width="720" height="auto" controls="controls">
<source src="https:///home/murteza/Virtual/Blog/output/videos/copying_adb_vendor_keys_using_termux_and_root.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
<hr>
<h2>Hard way | copy-paste using TWRP</h2>
<p>This is the "no-root" hard method. You will still need root priviledges to edit <code>/data/misc/adb/adb_keys</code>. If your phone isn't rooted but has TWRP, GREAT. TWRP has root priviledges and a file manager.</p>
<ol>
<li>Boot into TWRP by holding Vol+ and Power keys while the phone is turned off.</li>
<li>Connect phone to computer</li>
<li>Copy ~/.android/adbkey.pub to phone's memory</li>
<li>Go to Advanced &gt; File manager</li>
<li>Navigate to where adbkey.pub was copied to. I am using Redmi Note 4 and MTP connects to <code>/sdcard</code> on this device.</li>
<li>Copy <code>adbkey.pub</code> to <code>/data/misc/adb/adb_keys</code></li>
<li>Delete <code>adb_keys</code> in </li>
<li>Rename <code>adbkey.pub</code> to <code>abd_keys</code></li>
<li>Double check if content of <code>/data/misc/adb/adb_keys</code> on phone and <code>~/.android/adbkey.pub</code> on computer are the same</li>
<li>Enjoy 😊️</li>
</ol>
<p><img alt="SCRCPY is casting Android phone's screen on to computer after manually copying computer's adbkey.pub file to phone's adb_keys file" src="images/scrcpy_casting_android_to_computer.png" title="scrcpy is finally working"></p>
<hr>
<p>It was a little annoying adventure for me to find where the adbkey.pub suppose to go. I am not immitated with having to do that thing manually. I was annoyed that this information isn't out there in Android documentations and requires reading answers from 2014 on stack__overflow__.</p>
<h3>I hope this guide was helpful to you 😉️</h3> </article>
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<h1 class="entry-title"><a href="https://murtezayesil.me/swap-on-ssd-done-right.html">Swap on SSD done right</a></h1>
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<span>Sun 26 July 2020</span>
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<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom"><title>Ali Murteza Yesil</title><link href="https://murtezayesil.me/" rel="alternate"></link><link href="https://murtezayesil.me/feeds/atom.xml" rel="self"></link><id>https://murtezayesil.me/</id><updated>2020-07-26T00:00:00+06:00</updated><subtitle>Blog</subtitle><entry><title>Swap on SSD done right</title><link href="https://murtezayesil.me/swap-on-ssd-done-right.html" rel="alternate"></link><published>2020-07-26T00:00:00+06:00</published><updated>2020-07-26T00:00:00+06:00</updated><author><name>Ali Murteza Yesil</name></author><id>tag:murtezayesil.me,2020-07-26:/swap-on-ssd-done-right.html</id><content type="html"></content><category term="draft"></category></entry><entry><title>$ADB_VENDOR_KEYS is not set</title><link href="https://murtezayesil.me/adb_vendor_keys-is-not-set.html" rel="alternate"></link><published>2020-07-22T00:00:00+06:00</published><updated>2020-07-22T00:00:00+06:00</updated><author><name>Ali Murteza Yesil</name></author><id>tag:murtezayesil.me,2020-07-22:/adb_vendor_keys-is-not-set.html</id><summary type="html">&lt;p&gt;Authorizing adb when no prompt will come, the hard way.&lt;/p&gt;</summary><content type="html">&lt;h2&gt;Story&lt;/h2&gt;
<feed xmlns="http://www.w3.org/2005/Atom"><title>Ali Murteza Yesil</title><link href="https://murtezayesil.me/" rel="alternate"></link><link href="https://murtezayesil.me/feeds/atom.xml" rel="self"></link><id>https://murtezayesil.me/</id><updated>2020-07-22T00:00:00+06:00</updated><subtitle>Blog</subtitle><entry><title>$ADB_VENDOR_KEYS is not set</title><link href="https://murtezayesil.me/adb_vendor_keys-is-not-set.html" rel="alternate"></link><published>2020-07-22T00:00:00+06:00</published><updated>2020-07-22T00:00:00+06:00</updated><author><name>Ali Murteza Yesil</name></author><id>tag:murtezayesil.me,2020-07-22:/adb_vendor_keys-is-not-set.html</id><summary type="html">&lt;p&gt;Authorizing adb when no prompt will come, the hard way.&lt;/p&gt;</summary><content type="html">&lt;h2&gt;Story&lt;/h2&gt;
&lt;p&gt;I like &lt;a href="https://github.com/Genymobile/scrcpy" title="scrcpy by Genymobile - GitHub"&gt;scrcpy&lt;/a&gt;. It allows me to cast my phone to computer and use it ther thanks to cable technology (wifi works too). So, after hopping to &lt;img src="https://fosstodon.b-cdn.net/custom_emojis/images/000/025/123/static/a76f54a7dbcd8afd.png" width="15em" height="15em"&gt; Pop_OS! I reinstalled adb and scrcpy.
But this time scrcpy didn't work. Instead it throw this error:&lt;br&gt;
&lt;blockquote style="font-style: normal;"&gt;

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<feed xmlns="http://www.w3.org/2005/Atom"><title>Ali Murteza Yesil - draft</title><link href="https://murtezayesil.me/" rel="alternate"></link><link href="https://murtezayesil.me/feeds/draft.atom.xml" rel="self"></link><id>https://murtezayesil.me/</id><updated>2020-07-26T00:00:00+06:00</updated><subtitle>Blog</subtitle><entry><title>Swap on SSD done right</title><link href="https://murtezayesil.me/swap-on-ssd-done-right.html" rel="alternate"></link><published>2020-07-26T00:00:00+06:00</published><updated>2020-07-26T00:00:00+06:00</updated><author><name>Ali Murteza Yesil</name></author><id>tag:murtezayesil.me,2020-07-26:/swap-on-ssd-done-right.html</id><content type="html"></content><category term="draft"></category></entry></feed>

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<h1 class="entry-title"><a href="https://murtezayesil.me/swap-on-ssd-done-right.html">Swap on SSD done right</a></h1>
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<span>Sun 26 July 2020</span>
<span>| in <a href="https://murtezayesil.me/category/draft.html">draft</a></span>
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<h1><a href="https://murtezayesil.me/adb_vendor_keys-is-not-set.html" rel="bookmark"
title="Permalink to $ADB_VENDOR_KEYS is not set">$ADB_VENDOR_KEYS is not set</a></h1>
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<h1 class="entry-title"><a href="https://murtezayesil.me/adb_vendor_keys-is-not-set.html">$ADB_VENDOR_KEYS is not set</a></h1>
<footer class="post-info">
<span>Wed 22 July 2020</span>
<span>| in <a href="https://murtezayesil.me/category/tech.html">Tech</a></span>
<span>| tags: <a href="https://murtezayesil.me/tag/android.html">android</a><a href="https://murtezayesil.me/tag/error.html">error</a><a href="https://murtezayesil.me/tag/100daystooffload.html">100DaysToOffload</a></span> <span>| Day <strong>7</strong> of #100DaysToOffload</span>
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</article></li>
</footer><!-- /.post-info --><h2>Story</h2>
<p>I like <a href="https://github.com/Genymobile/scrcpy" title="scrcpy by Genymobile - GitHub">scrcpy</a>. It allows me to cast my phone to computer and use it ther thanks to cable technology (wifi works too). So, after hopping to <img src="https://fosstodon.b-cdn.net/custom_emojis/images/000/025/123/static/a76f54a7dbcd8afd.png" width="15em" height="15em"> Pop_OS! I reinstalled adb and scrcpy.
But this time scrcpy didn't work. Instead it throw this error:<br>
<blockquote style="font-style: normal;">
<code>
adb: error: failed to get feature set: device unauthorized.<br>
This adb server's $ADB_VENDOR_KEYS is not set<br>
Try 'adb kill-server' if that seems wrong.<br>
Otherwise check for a confirmation dialog on your device.<br>
ERROR: "adb push" returned with value 1
</code>
</blockquote> </p>
<h2>Easy way | Grant access using prompt on the phone</h2>
<p>After enabling <a href="https://www.howtogeek.com/129728/how-to-access-the-developer-options-menu-and-enable-usb-debugging-on-android-4.2/">USB debugging in Developer options</a> connect phone to computer and run <code>scrcpy</code>. Phone should prompt you for granting access to computer. All you have to do is accept and connection will be granted 🎉️</p>
<hr>
<p>This prompt didn't appear on my phone. As it turns out, that prompt doesn't works as expected on some custom ROMS. After some digging online, I came across <a href="https://stackoverflow.com/a/26309956">this answer on stack <strong>overflow</strong></a>. Which leads to a <a href="https://android.googlesource.com/platform/system/core/+/d5fcafaf41f8ec90986c813f75ec78402096af2d">commit message for (new) adb authentication</a> implemented in 2012. This prompt copies ~/.android/adbkey.pub on computer, <code>$ADB_VENDOR_KEYS</code>, to <code>/data/misc/adb/adb_keys</code> file in phone's memory. since prompt isn't working for me I have to add that key manually 😕️</p>
<h2>Littler harder way | copy-paste using Termux + root</h2>
<p>Since <code>/data/misc/adb/adb_keys</code> file is offlimits for the user, we need root priviledges for this method.</p>
<ol>
<li>Copy ~/.android/adbkey.pub to phone's memory</li>
<li>Open Termux and install sudo &gt; <code>pkg install tsu</code></li>
<li>Navigate to where file adbkey.pub is. I'm using Redmi Note 4 and its <code>/sdcard</code> directory is used for .<br>
File is at <code>/sdcard/adbkey.pub</code> in my case &gt; <code>cd /sdcard</code></li>
<li>Copy <code>adbkey.pub</code> to <code>/data/misc/adb/adb_keys</code> with sudo priviledges &gt; <code>sudo cp adbkey.pub /data/misc/adb/adb_keys</code> </li>
<li>Double check if content of <code>/data/misc/adb/adb_keys</code> on phone and <code>~/.android/adbkey.pub</code> on computer are the same</li>
<li>Enjoy 😊️</li>
</ol>
<video width="720" height="auto" controls="controls">
<source src="https:///home/murteza/Virtual/Blog/output/videos/copying_adb_vendor_keys_using_termux_and_root.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
<hr>
<h2>Hard way | copy-paste using TWRP</h2>
<p>This is the "no-root" hard method. You will still need root priviledges to edit <code>/data/misc/adb/adb_keys</code>. If your phone isn't rooted but has TWRP, GREAT. TWRP has root priviledges and a file manager.</p>
<ol>
<li>Boot into TWRP by holding Vol+ and Power keys while the phone is turned off.</li>
<li>Connect phone to computer</li>
<li>Copy ~/.android/adbkey.pub to phone's memory</li>
<li>Go to Advanced &gt; File manager</li>
<li>Navigate to where adbkey.pub was copied to. I am using Redmi Note 4 and MTP connects to <code>/sdcard</code> on this device.</li>
<li>Copy <code>adbkey.pub</code> to <code>/data/misc/adb/adb_keys</code></li>
<li>Delete <code>adb_keys</code> in </li>
<li>Rename <code>adbkey.pub</code> to <code>abd_keys</code></li>
<li>Double check if content of <code>/data/misc/adb/adb_keys</code> on phone and <code>~/.android/adbkey.pub</code> on computer are the same</li>
<li>Enjoy 😊️</li>
</ol>
<p><img alt="SCRCPY is casting Android phone's screen on to computer after manually copying computer's adbkey.pub file to phone's adb_keys file" src="images/scrcpy_casting_android_to_computer.png" title="scrcpy is finally working"></p>
<hr>
<p>It was a little annoying adventure for me to find where the adbkey.pub suppose to go. I am not immitated with having to do that thing manually. I was annoyed that this information isn't out there in Android documentations and requires reading answers from 2014 on stack__overflow__.</p>
<h3>I hope this guide was helpful to you 😉️</h3> </article>
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