Merge branch 'master' of a.gmvl.de:/git/m1-debian

[m1-debian] / doc / notes.txt

diff --git a/doc/notes.txt b/doc/notes.txt
index e2b2d8b6ed751b7b19e7153bf747f0afbd4f7f08..379bc625f6d801251f7c8e195015b7080baf7fa8 100644 (file)
--- a/doc/notes.txt
+++ b/doc/notes.txt
@@ -185,3 +185,80 @@ exec /bin/bash
 
 19:14 <VinDuv> marcan: I have done a bit more testing with the .IAPhysicalMedia file and it looks like ProductBuildVersion can be any value including blank. ProductVersion seems to be checked against the minimal macOS version supported by the Mac; on my mini the icon shows up in the boot menu only if it’s >= 11.3.
 19:15 <VinDuv> Maybe it should be set to a higher value for forward compatibility with future Macs that will require 13.0? I’ve tested setting it to 99 and it works.
+
+21:46 < povik> with pulse, you can get the jack by getting into pacmd
+21:46 < povik> and running: load-module module-alsa-sink device=hw:0,1
+21:56 < povik> that mode of playing in parallel through the speakers and jack has a defect
+21:57 < povik> there's noise mixed-in then, at a period
+21:57 < povik> don't know how that happens yet
+
+If you see this in Xorg.0.log, it means that simpledrm has not initialized.
+...
+[     4.259] (EE) open /dev/dri/card0: No such file or directory
+...
+[     4.278] (EE) 
+[     4.278] (EE) Backtrace:
+[     4.278] (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x188) [0xaaaad26e0398]
+[     4.278] (EE) unw_get_proc_info failed: no unwind info found [-10]
+
+An initialized simpledrm looks like that:
+
+(air) [~] dmesg | grep -i simpledrm
+[    2.215718] [drm] Initialized simpledrm 1.0.0 20200625 for be2120000.framebuffer on minor 0
+[    2.218952] simple-framebuffer be2120000.framebuffer: [drm] fb1: simpledrmdrmfb frame buffer device
+
+This is probably because someone forgot to enable one of the following kernel options:
+
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+CONFIG_BACKLIGHT_GPIO=m
+CONFIG_DRM=y
+CONFIG_DRM_SIMPLEDRM=y
+CONFIG_FB_EFI=n
+
+-------------------------------------------------------------------------------------------------------------
+Howto convert from the old bootchain to the m1n1 chainloaded bootchain:
+
+(air) [~] parted /dev/nvme0n1 print
+Model: APPLE SSD AP0512Q (nvme)
+Disk /dev/nvme0n1: 500GB
+Sector size (logical/physical): 4096B/4096B
+Partition Table: gpt
+Disk Flags:
+
+Number  Start   End    Size    File system  Name                  Flags
+ 1      24.6kB  524MB  524MB                iBootSystemContainer
+ 2      524MB   400GB  399GB                Container
+ 3      400GB   402GB  2501MB
+ 4      402GB   403GB  513MB   fat32                              boot, esp
+ 5      403GB   495GB  91.8GB  ext4         primary
+ 6      495GB   500GB  5369MB               RecoveryOSContainer
+
+I deleted partition 4 and 3, run the asahi installer again.
+
+Than I booted debian from the live stick and mounted the root filesystem and the efi file system:
+
+mount /dev/nvme0n1p5 /mnt
+mount /dev/nvme0n1p4 /mnt/boot/efi
+
+Than I bindmounted the rest of it:
+
+mount -t sysfs none /mnt/sys
+mount -t efivarfs none /mnt/sys/firmware/efi/efivars
+mount -t proc none /mnt/proc
+mount -o bind /dev /mnt/dev
+mount -o bind /dev/pts /mnt/dev/pts
+
+Than I changerooted into it:
+
+cd /mnt
+chroot . bin/bash
+
+blkid
+# Than I updated /etc/fstab with the new id of the efi partition
+
+curl -sLo /boot/efi/m1n1/boot.bin tg.st/u/u-boot.bin
+
+grub-install --removable /boot/efi
+
+exit, umounted everything and rebooted.
+-------------------------------------------------------------------------------------------------------------