2014-02-18 12:22:50 +00:00
|
|
|
# Arch Linux on Nexus 7 Flo Native
|
|
|
|
|
|
|
|
|
|
Here are my instructions on getting Arch Linux ARM natively booting on the
|
|
|
|
|
Nexus 7 Flo. Ideally this would be booting from a usb stick or a dedicated
|
|
|
|
|
partition on the mmc but this is working for me now. Once I get a bluetooth
|
|
|
|
|
keyboard I will try to get it working from a usb stick.
|
|
|
|
|
|
|
|
|
|
## BUGS!!!
|
|
|
|
|
There is no frambuffer console :(
|
|
|
|
|
If you cannot get it booting you will need to
|
|
|
|
|
reboot into recovery and check /proc/last_kmsg for the errors. Or try and build
|
|
|
|
|
the UART cable (which I failed at)
|
|
|
|
|
|
|
|
|
|
There is only xf86-video-fbdev working and no DRM or anything fancy
|
|
|
|
|
|
|
|
|
|
The Software Refresher in the kernel does not work. You will need to run my
|
|
|
|
|
refresher app or fix the kernel :)
|
|
|
|
|
|
2014-02-26 03:38:10 +00:00
|
|
|
The new xa code from x86-video-freedreno-git does not work. gpuaddr in
|
|
|
|
|
kgsl_bo_gpuaddr comes back a 0
|
|
|
|
|
|
|
|
|
|
## Quick Guide
|
2014-02-18 12:22:50 +00:00
|
|
|
1: I roughly followed the instructions form
|
|
|
|
|
https://github.com/borh/nexus-7-2013-arch-scripts to get a working chroot
|
|
|
|
|
first.
|
|
|
|
|
|
|
|
|
|
2: Edit the init script to point to your arch.img or partition
|
|
|
|
|
|
|
|
|
|
3: Edit and Run makebootimage.sh
|
|
|
|
|
|
|
|
|
|
4: fastboot boot newboot
|
|
|
|
|
|
|
|
|
|
5: ???
|
|
|
|
|
|
|
|
|
|
6: Profit
|
|
|
|
|
|
|
|
|
|
## To get WiFi Working
|
|
|
|
|
|
|
|
|
|
A normal Nexus 7 Flo boot will call /system/bin/conn_init which does a whole
|
|
|
|
|
lot of verifying your mac address and then writes out a config with the mac
|
|
|
|
|
address in it. Very annoying. To get around this you need a copy of the wifi
|
|
|
|
|
configs and manually enable the wifi driver since it does not start on boot.
|
|
|
|
|
The firmware.service is only needed since I do not load the firmware in the
|
|
|
|
|
initramfs (which I am haven't done yet)
|
|
|
|
|
|
|
|
|
|
1: Copy /system/vendor/firmware [android] to /usr/lib/firmware [arch]
|
|
|
|
|
2: rm /usr/lib/firmware/wlan/prima/{WCNSS_qcom_cfg.ini,WCNSS_qcom_wlan_nv.bin} <-- these are simlinks
|
|
|
|
|
3: cp /data/misc/wifi/{WCNSS_qcom_cfg.ini,WCNSS_qcom_wlan_nv.bin} /usr/lib/firmware/wlan/prima/ <-- these are the files which conn_init writes your mac address to
|
|
|
|
|
|
|
|
|
|
4: Copy firmware.service to /etc/systemd/system/
|
|
|
|
|
5: ln -s /etc/systemd/system/firmware.service /etc/systemd/system/multi-user.target.wants/firmware.service
|
|
|
|
|
|
|
|
|
|
6: Create a wpa_supplicant-nl80211@wlan0.service with your wpa_supplicant.conf
|
|
|
|
|
details
|
|
|
|
|
7: ln -s /etc/systemd/system/dhcpcd.service /etc/systemd/system/multi-user.target.wants/dhcpcd.service
|
|
|
|
|
8: ln -s /etc/systemd/system/sshd.service /etc/systemd/system/multi-user.target.wants/sshd.service
|
|
|
|
|
|
2014-02-26 03:52:30 +00:00
|
|
|
Note: Disable the wpa_supplicant hook in /etc/dhcpcd.conf
|
2014-02-18 12:22:50 +00:00
|
|
|
|
|
|
|
|
## To get X working
|
|
|
|
|
Since there is no framebuffer console you cannot start X manually (unless you
|
|
|
|
|
are able to get ssh working, see above) Auto login is your friend.
|
|
|
|
|
|
|
|
|
|
Be sure to install a window manager or something first and then follow
|
|
|
|
|
https://wiki.archlinux.org/index.php/Automatic_login_to_virtual_console and
|
|
|
|
|
https://wiki.archlinux.org/index.php/Start_X_at_Login
|
|
|
|
|
|
|
|
|
|
Your .xinitrc should contain something like
|
|
|
|
|
~/refresher &
|
|
|
|
|
exec awesome
|
|
|
|
|
|
|
|
|
|
## Refreshing (refresher.c)
|
|
|
|
|
Since the MSMFB_SW_REFRESHER does not seem to be working i wrote this instead.
|
|
|
|
|
Just compile and put in you ~/ or whereever so xinit can run it.
|
|
|
|
|
|
|
|
|
|
# Kernel stuff
|
|
|
|
|
|
2014-02-26 03:44:28 +00:00
|
|
|
You can use the kernel from here https://github.com/crondog/kernel_msm
|
|
|
|
|
|
2014-02-18 12:22:50 +00:00
|
|
|
## To get Touchscreen working
|
|
|
|
|
Apply 0001-make-ektf3k-driver-report-non-MT-events-too.patch
|
|
|
|
|
|
|
|
|
|
## Kernel configs
|
|
|
|
|
I used the following additional configs to get this working. Some might not be
|
|
|
|
|
necessary but it helps with debugging
|
|
|
|
|
|
2014-02-26 03:52:30 +00:00
|
|
|
CONFIG_FB_MSM_DEFAULT_DEPTH_BGRA8888 (with RGBA patch from robclark)
|
2014-02-18 12:22:50 +00:00
|
|
|
CONFIG_FHANDLE=y
|
|
|
|
|
CONFIG_DEVTMPFS=y
|
|
|
|
|
CONFIG_UTS_NS=y
|
|
|
|
|
CONFIG_IPC_NS=y
|
|
|
|
|
CONFIG_USER_NS=y
|
|
|
|
|
CONFIG_PID_NS=y
|
|
|
|
|
CONFIG_NET_NS=y
|
|
|
|
|
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
|
|
|
|
|
CONFIG_FANOTIFY=y
|
|
|
|
|
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
|
|
|
|
|
CONFIG_DETECT_HUNG_TASK=y
|
|
|
|
|
CONFIG_DEBUG_SPINLOCK=y
|
|
|
|
|
CONFIG_DEBUG_MUTEXES=y
|
|
|
|
|
CONFIG_DEBUG_ATOMIC_SLEEP=y
|
|
|
|
|
CONFIG_STACKTRACE=y
|
|
|
|
|
CONFIG_DEBUG_BUGVERBOSE=y
|
|
|
|
|
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
|
|
|
|
|
|
|
|
|
|
## Build initramfs
|
|
|
|
|
1: Edit makebootimage.sh with paths
|
|
|
|
|
2: cd systemd-initramfs; find . | cpio -o -H newc | gzip > ../minimal.initramfs
|
|
|
|
|
3: ./makebootimage.sh
|
2014-02-20 03:26:51 +00:00
|
|
|
|
|
|
|
|
# Whats Working
|
|
|
|
|
Wifi
|
|
|
|
|
fb0
|
|
|
|
|
Audio -- Need to setup Pulse Audio as systemwide. Not sure why it does not work as a normal user
|
2014-02-20 11:02:08 +00:00
|
|
|
You will also need the alsaucm files from libasound2-data_1.0.27.2-1ubuntu6_all.deb
|
2014-02-20 03:26:51 +00:00
|
|
|
|
|
|
|
|
# Whats Maybe
|
|
|
|
|
Bluetooth - I can pair with my i9300 with bluez4 but obexftp doesnt work...Havent tried a keyboard yet
|
|
|
|
|
|
|
|
|
|
# Not tested
|
|
|
|
|
NFC
|
