add faq about sound

[m1-debian] / README.md

diff --git a/README.md b/README.md
index 05598116ef8575df7654445cbe300f672c7fc75a..412b002e1a2c1149d1381bd4e43588b17a447d9f 100644 (file)
--- a/README.md
+++ b/README.md
@@ -120,7 +120,29 @@ Than open a terminal, and run the following commands:
 
 # FAQ
 
-* If I install Debian, will it be easy to update the Asahi work as it develops?
+## How to enable spakers?
+
+Currently speakers are only supported on M1 air. Install the necessary packages:
+
+        apt update
+        apt upgrade -y
+        apt dist-upgrade -y
+        apt install -y alsa-ucm-conf-asahi speakersafetyd
+        reboot
+
+After the reboot I need to restart the speakersafetyd in order to hear sound out of the speakers:
+
+        sudo systemctl restart speakersafetyd
+
+## Does it work on M2?
+
+Yes, M3 is not yet supported.
+
+## Are you still maintaining this?
+
+Yes, I do and will continue doing this until there is an official Debian installer.
+
+## If I install Debian, will it be easy to update the Asahi work as it develops?
 
 Yes, long answer below.
 
@@ -132,7 +154,7 @@ as root:
 
 For installations before 2022-12-12, see <https://thomas.glanzmann.de/asahi/README.txt>
 
-Later it might be necessary to upgrade the stub parition in order to
+Later it might be necessary to upgrade the stub partion in order to
 support the GPU code. As soon as that happens, I'll add the
 instructions and a video in order to do so, but short version is:
 
@@ -143,3 +165,57 @@ instructions and a video in order to do so, but short version is:
 
 So, you never need to reinstall Debian. Kernel updates are easy, stub
 updates are a little bit more cumbersome but also seldom.
+
+## How do I compile zfs on apple silicon debian?
+
+- In order to build zfs you need the rust environment. So from the m1-debian
+  repository you have to run these scripts:
+
+        ./dependencies.sh
+        ./prepare_rust.sh
+
+- Prepare your zfs build environment. You need to replace
+  /home/sithglan/work/m1-debian with your path to
+  your m1-debian checkout:
+
+        export CARGO_HOME="/home/sithglan/work/m1-debian/build/cargo"
+        export RUSTUP_HOME="/home/sithglan/work/m1-debian/build/rust"
+        source "/home/sithglan/work/m1-debian/build/cargo/env"
+
+- You have to specify the default rust version:
+
+        rustup default 1.68.2
+
+- Tell zfs which version of clang you use to compile the kernel:
+
+        export KERNEL_LLVM=-15
+
+- Checkout ZFS:
+
+        git clone https://github.com/openzfs/zfs
+        cd ./zfs
+        git checkout master
+
+- Apply the following patch:
+
+        diff --git a/META b/META
+        index 3919b0d..67c9f7d 100644
+        --- a/META
+        +++ b/META
+        @@ -4,7 +4,7 @@ Branch:        1.0
+        Version:       2.2.99
+        Release:       1
+        Release-Tags:  relext
+        -License:       CDDL
+        +License:       GPL
+        Author:        OpenZFS
+        Linux-Maximum: 6.4
+        Linux-Minimum: 3.10
+
+- Build ZFS:
+
+        sh autogen.sh
+        ./configure
+        make -s -j$(nproc)
+
+- Follow the instructions on <https://openzfs.github.io/openzfs-docs/Developer%20Resources/Building%20ZFS.html> how to install it.