Write up on LineageOS for Pixel 3a and fixes

Makefile

@@ -10,6 +10,10 @@ HUGO_IMAGE_NAME=bdebyl/hugo
 HUGO_IMAGE_TAG?=latest
 HUGO_IMAGE=$(HUGO_IMAGE_NAME):$(HUGO_IMAGE_TAG)
 
+THUMBR_IMAGE_NAME=bdebyl/awscli
+THUMBR_IMAGE_TAG?=latest
+THUMBR_IMAGE?=$(THUMBR_IMAGE_NAME):$(THUMBR_IMAGE_TAG)
+
 AWS_IMAGE_NAME=bdebyl/awscli
 AWS_IMAGE_TAG?=latest
 AWS_IMAGE=$(AWS_IMAGE_NAME):$(AWS_IMAGE_TAG)
@@ -45,6 +49,10 @@ static-push:
 	aws s3 sync --acl "public-read" --sse "AES256" ${STATIC_DIR}/ s3://${STATIC_BUCKET}
 .PHONY: static-push
 
+static-images:
+	@${DOCKER_RUN} ${THUMBR_IMAGE} ${STATIC_DIR}/static/img
+.PHONY: static-images
+
 css-push:
 	aws s3 cp --acl "public-read" --sse "AES256" public/dist/style.css s3://${WEB_BUCKET}/dist/style.css
 .PHONY: css-push

content/post/aperture-study.md

@@ -67,11 +67,18 @@ Below is the entire collection of all the photos taken of the subject at
 increasing aperture steps.
 
 {{< thumbgallery >}}
-    {{< thumb src="/static/img/aperture-study/f17.jpg" sub="f/1.7" >}}
+    {{< thumb src="/static/img/aperture-study/f17.jpg" sub="f/1.7"
-    {{< thumb src="/static/img/aperture-study/f20.jpg" sub="f/2.0" >}}
+        alt="Photograph showing photo at aperture f/1.7" >}}
-    {{< thumb src="/static/img/aperture-study/f22.jpg" sub="f/2.2" >}}
+    {{< thumb src="/static/img/aperture-study/f20.jpg" sub="f/2.0"
-    {{< thumb src="/static/img/aperture-study/f25.jpg" sub="f/2.5" >}}
+        alt="Photograph showing photo at aperture f/2.0" >}}
-    {{< thumb src="/static/img/aperture-study/f28.jpg" sub="f/2.8" >}}
+    {{< thumb src="/static/img/aperture-study/f22.jpg" sub="f/2.2"
-    {{< thumb src="/static/img/aperture-study/f32.jpg" sub="f/3.2" >}}
+        alt="Photograph showing photo at aperture f/2.2" >}}
-    {{< thumb src="/static/img/aperture-study/f40.jpg" sub="f/4.0" >}}
+    {{< thumb src="/static/img/aperture-study/f25.jpg" sub="f/2.5"
+        alt="Photograph showing photo at aperture f/2.5" >}}
+    {{< thumb src="/static/img/aperture-study/f28.jpg" sub="f/2.8"
+        alt="Photograph showing photo at aperture f/2.8" >}}
+    {{< thumb src="/static/img/aperture-study/f32.jpg" sub="f/3.2"
+        alt="Photograph showing photo at aperture f/3.2" >}}
+    {{< thumb src="/static/img/aperture-study/f40.jpg" sub="f/4.0"
+        alt="Photograph showing photo at aperture f/4.0" >}}
 {{< /thumbgallery >}}

content/post/emacs_clang_libopencm3.md

@@ -3,7 +3,7 @@ title: "Auto-complete for libopencm3 in Emacs"
 date: 2019-10-18
 lastmod: 2019-10-18
 tags: ["emacs", "linux"]
-categories: ["Tutorials"]
+categories: ["Tutorial"]
 contentCopyright: true
 hideHeaderAndFooter: false
 ---

content/post/lineageos_pixel3a.md

@@ -0,0 +1,111 @@
+---
+title: "Installing LineageOS Unofficial on Pixel 3a"
+date: 2020-07-13
+lastmod: 2020-07-13
+draft: false
+tags: ["android", "security", "hacking"]
+categories: ["Tutorial"]
+contentCopyright: true
+hideHeaderAndFooter: false
+preview: "/static/img/lineageos-pixel3a/lineage-settings.png"
+---
+In this post I aim to highlight my findings in deciding to go through  the
+process of installing LineageOS on my Pixel 3a. Currently, LineageOS does not
+officially support the Pixel 3a. However, InvisibleK (Dan Pasanen) does host
+updated versions of his unofficial LineageOS build for the Pixel 3a complete
+with a custom recovery to utilize for this purpose!
+
+{{< thumbgallery >}}
+    {{< thumb src="/static/img/lineageos-pixel3a/lineage-settings.png"
+        alt="Screenshot showing the LineageOS version and other LineageOS settings on the Pixel 3a" >}}
+    {{< thumb src="/static/img/lineageos-pixel3a/lineage-trust.png"
+        alt="Screenshot showing the LineageOS Trust feature" >}}
+{{< /thumbgallery >}}
+
+
+<!--more-->
+# Thank You
+Before going on any further, I'd like to take a moment to give my sincere thanks
+to InvisibleK (Dan Pasanen). Having to set up the entire custom build for Pixel
+3a of LineageOS myself would add far more overhead in the overall simple task in
+trying to get LineageOS to work on a Pixel 3a!
+
+# Preface
+There are plenty of guides out there on how to install and set up ADB and
+Fastboot on your host machine. For me, on Arch Linux, this was as simple as
+running `pacman -S android-tools`. However, should you be on MacOS or Windows
+you may have to find resources on how to go about this. I do not intend to go
+over this here -- __sorry_.
+
+Additionally, this _guide_ also assumes the reader has some familiarity with ADB
+and/or Fastboot.
+
+# Source Files
+If you, the reader, knows what you're doing and simply just require the files
+for your Pixel 3a they can be found here:
+- https://updater.invisiblek.org/sargo
+
+# Installation
+{{< admonition warning "Warning!" >}}
+If it isn't abundantly clear by now, be aware that you **will be destroying all
+the data currently on your Pixel 3a** in the process of installing LineageOS on
+your device! Stop now and back up any files, 2FA codes, or other prior to
+proceeding.
+{{< /admonition >}}
+
+## Note about TWRP
+As of writing this, TWRP[^1] (_a custom recovery commonly used in custom OS
+installation_) does not support Pixel 3a. However, if it does
+
+## Flash to Stock
+Google is kind enough to provide a plethora of versions of the stock images for
+the Pixel devices. In my process of installing LineageOS, as it will be on
+Android 10, I made sure to flash to the latest stock version of Pixel 3a Android
+10. Do note that the versions are listed in reverse order, with the latest being
+found in the bottom-most row.
+- https://developers.google.com/android/images
+
+Additionally, Google provides a helper script `flash-all` that I highly
+recommend running as-is to flash your Pixel 3a to stock. This will take some
+
+## Flash Custom Recovery
+Using InvisibleK's build page, you'll find the required custom recovery image
+for flashing found at the bottom of the list of zip files marked with a lone
+"download" link.
+
+Download, then flash it via the following:
+1. Reboot to recovery
+   ```bash
+   $ adb reboot bootloader
+   ```
+1. Flash the custom recovery (_make sure to replace `N` with the version you
+   downloaded, mine was '4'_)
+   ```bash
+   $ fastboot flash boot sargo-recovery-eng-N.img
+   ```
+1. Boot the custom recovery either by re-entering recovery mode or fastboot --
+   make sure to wait for it to enter Android Recovery after
+   ```bash
+   $ fastboot boot sargo-recovery-eng-N.img
+   ```
+
+## Install LineageOS
+Now that the custom recovery is set up and booted into, we're ready to install LineageOS!
+1. **Important!** Once in recovery, ensure to 'Wipe data/factory reset' prior to
+   proceeding.
+1. Select 'Apply update from ADB'
+1. ADB Sideload the version, if not latest, of LineageOS you want for your Pixel
+   3a
+   ```bash
+   $ adb sideload lineage-17.1-2020517-UNOFFICIAL-sargo.zip
+   ```
+1. Wait for installation to complete then select 'Reboot system now' from the
+   recovery menu
+1. Enjoy LineageOS!
+
+## Verification
+Once in LineageOS, you can browse the settings to verify the installation and
+set up Trust the preferred way. Personally, I chose to leave the defaults.
+
+
+[^1]: [Team Win Recovery Project](https://twrp.me/)

make-thumbs.sh

@@ -1,84 +0,0 @@
-#!/bin/sh
-{ usage="$(cat)"; }<<'EOF'
-USAGE
-    make-thumbs.sh [OPTIONS] <path>
-
-DESCRIPTION
-    Recursively searches through the passed path, ignoring existing thumbnails,
-    and generates thumbnails for images greater than 600px in width.
-
-OPTIONS
-    -h, --help         Shows this help prompt
-    -d, --dry-run      Dry-run that will not create actual thumbnails
-EOF
-
-die() {
-    printf '%s\n' "$1" >&2
-    exit 1
-}
-
-show_help() {
-    printf '%s\n' "$usage"
-    exit
-}
-
-while :; do
-    case $1 in
-        -h|-\?|--help)
-            show_help
-            exit
-            ;;
-        -d|--dry-run)
-            DRYRUN=1
-            ;;
-        --)
-            shift
-            break
-            ;;
-        -?*)
-            printf 'WARN: Unknown option (ignored): %s\n' "$1" >&2
-            ;;
-        *)
-            if [ "$1" ]; then
-                BROWSE_PATH=$1
-            else
-                break
-            fi
-            ;;
-    esac
-
-    shift
-done
-
-if [ -z "$BROWSE_PATH" ]; then
-    die 'ERROR: path not specified! (See -h/--help)'
-fi
-
-CONVERT=$(command -v convert)
-if [ ! "$CONVERT" ]; then
-    echo "ERROR: imagemagick must be installed!"
-    exit 1
-fi
-
-find "$BROWSE_PATH" -type f -not -path '*thumb*' | while read -r i; do
-    THUMB_PATH="$(dirname "$i")/thumb"
-    IMG_NAME="$(basename "$i")"
-
-    # Generate a thumbnail if the width is greater than 600px
-    if [ "$(identify -format "%w" "$i")" -gt 600 ]; then
-        # Create the thumbnail directory fo the image to be made
-        if [ ! -d "$THUMB_PATH" ]; then
-            if [ ! "$DRYRUN" ]; then
-                mkdir -p "$THUMB_PATH"
-            fi
-        fi
-
-        # Create the thumbnail image
-        if [ ! -f "$THUMB_PATH/$IMG_NAME" ]; then
-            printf "└─ Converting %s to thumbnail in %s \n" "$BROWSE_PATH/$IMG_NAME" "$THUMB_PATH"
-            if [ ! "$DRYRUN" ]; then
-                "$CONVERT" -resize 600x "$i" "$THUMB_PATH/$IMG_NAME";
-            fi
-        fi
-    fi
-done