From 5332cda66ff74baafca8cb22bccd3058bcc2846c Mon Sep 17 00:00:00 2001
From: colin <colin@uninsane.org>
Date: Sat, 28 May 2022 13:05:26 -0700
Subject: [PATCH] blog: nixos pinephone: mention 'dd' flags

---
 .../blog/2022-05-20-mobile-nixos-pinephone.md | 37 ++++++++++++-------
 1 file changed, 24 insertions(+), 13 deletions(-)

diff --git a/content/blog/2022-05-20-mobile-nixos-pinephone.md b/content/blog/2022-05-20-mobile-nixos-pinephone.md
index 3908f54..4e617c9 100644
--- a/content/blog/2022-05-20-mobile-nixos-pinephone.md
+++ b/content/blog/2022-05-20-mobile-nixos-pinephone.md
@@ -11,14 +11,16 @@ step 2: convert to a flake
 
 step 3: install jumpdrive to a sd card
 
-step 4: build and flash a minimal mobile-nixos
+step 4: build a minimal mobile-nixos
+
+step 5: flash the image. oflag=direct is less likely to result in corruption
 ```sh
-$ sudo umount /dev/sdb* ; sudo dd if=/nix/store/l9na29kg38crkzhjf6ms3vviqhi2cbc5-pine64-pinephone_full-disk-image.img of=/dev/sdb bs=1M status=progress
+$ sudo umount /dev/sdb* ; sudo dd if=/nix/store/qalvicwwl80sfjx0rxmyi85wg30x257f-pine64-pinephone_full-disk-image.img of=/dev/sdb bs=1M status=progress conv=sync oflag=direct;
 ```
 
-step 5: add gnome and re-flash; connect to wifi  (`nmcli connect wifi <wifiname> <password>`)
+validate with `sudo fsck -f /dev/sdb4`. you might see a single, inconsequential error about `Padding at end of inode bitmap is not set.`
 
-step 6: ssh into the machine. resize the parts, and clone/rebuild config (better to do this from PC?)
+step 6: resize the rootfs:
 
 RESIZE THE PARTITION USING CFDISK. `parted` and the like mess with the bootloader. mobile-nixos is switching from
 u-boot to towboot, so at some point this won't be problematic. you can resize the filesystem using resize2fs,
@@ -27,21 +29,30 @@ or just skip that and the phone will do that the next time you boot.
 ```sh
 $ sudo cfdisk /dev/sdb
 scroll to /dev/sdb4
-resize
-leave at default (28.8 GB)
-write
-quite
+> Resize
+  leave at default (28.8G)
+> Write
+  type "yes"
+> Quite
 ```
 
-then disconnect the device and boot it
+step 7: poweroff, remove SD card, boot phone.
 
+step 8: add gnome and re-flash; connect to wifi  (`nmcli device wifi connect <wifiname>`)
+
+step 9: ssh into the machine. clone/rebuild config:
 ```
-$ git clone https://git.uninsane.org/colin/nix-files.git
-$ sudo rm /etc/nixos && mv nix-files /etc/nixos
-$ cd /etc/nixos
-$ sudo nixos-rebuild --flake "./#moby" switch  # XXX: check /etc/fstab for compatibility first?
+~$ git clone https://git.uninsane.org/colin/nix-files.git
+~$ sudo rmdir /etc/nixos && sudo mv nix-files /etc/nixos
+~$ cd /etc/nixos
+/etc/nixos$ sudo git config --global --add safe.directory /etc/nixos
+/etc/nixos$ sudo nixos-rebuild --flake "./#moby" switch  # XXX: check /etc/fstab for compatibility first?
 ```
 
+if everything goes right, the build shouldn't take more than 5-10 minutes.
+`sudo reboot now` and you should be right back to where you were.
+you're set!
+
 # Troubleshooting
 
 unbootable; unflashable (e.g. eMMC not exposed over USB)... tend to be power related issues.