feat: Update Alpine commits post

- change filenames (renoir -> lts)
- add explanation why

content/posts/alpine-commit-hooks.md

@@ -4,12 +4,14 @@ date: 2021-04-18T13:56:06+02:00
 draft: false
 ---
 
+tl;dr:
 
-- Create directory "/etc/apk/commit_hooks.d"
+- Create directory `/etc/apk/commit_hooks.d`
 - Put your executable files in there
 - First argument passed to your script is the stage (`pre-commit`/`post-commit`)
 
-Example hook:
+### Example hook
+
 ```bash
 #!/bin/bash
 
@@ -18,7 +20,19 @@ if ! mount | grep -q '/boot/efi'; then
 fi
 
 if [[ "$1" == "post-commit" ]]; then
-	cp /boot/initramfs-renoir /boot/efi/alpine/initramfs-renoir
-	cp /boot/vmlinuz-renoir /boot/efi/alpine/vmlinuz-renoir	
+	cp /boot/initramfs-lts /boot/efi/alpine/initramfs-lts
+	cp /boot/vmlinuz-lts /boot/efi/alpine/vmlinuz-lts
 fi
 ```
+
+### Why?
+
+I use [Gummiboot](https://en.wikipedia.org/wiki/Gummiboot_(software)) as my bootloader,
+which can boot Linux kernel images directly from the EFI partition.
+Alpine packages don't care about EFI though, they just put the stuff in `/boot`
+[directly](https://pkgs.alpinelinux.org/contents?file=&path=%2Fboot&name=linux-lts&branch=edge&repo=main&arch=x86_64).
+(I mean, the official wiki just says "manually copy them to `/boot/efi/`", which works but I tend to forget about it)
+
+I didn't want to mount EFI as `/boot`, so I decided that creating a commit hook would be
+the easiest way of hotfixing that issue (not ideal, as it runs with _every_ apk commit,
+but feasible for my use).