Saturday, August 12, 2017
Ubuntu 16 04 2 and updated Ubuntu 17 04 pseudo Alpha 2
Ubuntu 16 04 2 and updated Ubuntu 17 04 pseudo Alpha 2
Update: This page refers to earlier work and my latest ISOs and kernel upgrade scripts can be downloaded from my latest post.
Please note my blog is intended to be the dynamic update content partner to my static core content pages on my website. This particular post relates to my http://www.linuxium.com.au/how-tos/runningubuntuontheintelcomputestick page where Ive created some Ubuntu ISOs whose purpose is to better support Intel Atom based devices.
Please note my blog is intended to be the dynamic update content partner to my static core content pages on my website. This particular post relates to my http://www.linuxium.com.au/how-tos/runningubuntuontheintelcomputestick page where Ive created some Ubuntu ISOs whose purpose is to better support Intel Atom based devices.
The latest mainline kernel v4.10 has just been released and the revised HDMI LPE Audio Support patch set for Intel Atom SoCs is now queued for mainline inclusion so we could see it in v4.11 in a couple of months and then hopefully in Ubuntu possible as early as 17.10. Additionally Canonical have just released Ubuntu 16.04.2 and introduced the rolling Hardware Enablement (HWE) kernels which aim to provide support for the latest hardware. As a result Ive decided to provide a single kernel which is effectively a HWE edge kernel specifically patched for Intel Atom SoCs in my ISOs to simplify kernel management and create a forward path for future migration to mainline kernels.
My new kernel is based on Canonicals next zesty kernel which is rebased to v4.10 and also available in xenial as hwe-edge. To this Ive added the latest HDMI LPE patches from Pierre-Louis Bossart, Jerome Anand & Takashi Iwai. Ive also added Mika Kuoppalads new anti-freeze patch, Hans de Goedes PWM, AXP288 and I2C patches, Pierre-Louis Bossarts PMC Platform Clock and Codecs patches, Bastien Noceras wifi patch, Laszlo-Fiats bluetooth patch and part of my bluetooth support is based on a script from Larry Finger. The kernel source is available on my github.
WIP includes providing backlight support for some devices and the ES8316 driver which is currently under development. Unfortunately as I dont have a tablet I cannot advise on the screen rotation issues however others have commented in previous posts with their solutions which Id recommend reading.
At this stage Im providing two ISOs: Ubuntu 16.04.2 (with kernel Ubuntu-4.10.0-9.11) and Ubuntu 17.04 pseudo Alpha 2 (with kernel Ubuntu-lts-4.10.0-9.11~16.04.2). Further flavours will be added once initial feedback has been reviewed together with updated 16.10 releases. Later I will also provided the corresponding kernel update scripts as I will maintain the kernels with security patches and/or Intel Atom SoC added functionality/improvements.
To try an ISO download it from the link below (in red) and write it to a USB using either Rufus in Windows or dd in Linux.
Ubuntu comes with everything. All the essential applications, like an office suite, browsers, email and media apps come pre-installed and thousands more games and applications are available in the Ubuntu Software Centre.
Ubuntu comes with everything. All the essential applications, like an office suite, browsers, email and media apps come pre-installed and thousands more games and applications are available in the Ubuntu Software Centre.
If freezing persists follow Len Brown suggestion of adding "intel_idle.max_cstate=2" as a kernel boot parameter which enables Core-C6 but disables module/package-C6. With the Alpha release (including the official version) the installation does not recognize previously installed OS so use Something else and manually set up your partitions. Prior to embarking on an encrypted LVM installation you should first open a terminal session and turn off swapping using the command sudo swapoff -a. If there is no wifi after booting devices with a Broadcom chip then reload the driver: in a terminal window enter sudo modprobe -r brcmfmac followed by sudo modprobe brcmfmac. Occasionally on some devices bluetooth doesnt initially load so it is necessary to restart the service: for Broadcom chip devices enter sudo systemctl stop brcmbt.service followed by sudo systemctl start brcmbt.service and for Realtek chip devices enter sudo systemctl stop rtl8723bsbt.service followed by sudo systemctl start rtl8723bsbt.service. Some devices still do not reboot (or warm restart) correctly which can result in a purple screen or lack of wifi and/or bluetooth on reboot. In these circumstances cycle the power and boot the device from cold.
Because my ISOs include a patched kernel it means no automatic Ubuntu kernel updates are provided. Consequently Ive also developed a manual patching process where a script can be downloaded and then executed to update the kernel to match the official releases. These kernel update scripts are only for updating the kernel after installing my ISOs otherwise you will be missing the userland files required for audio, wifi and bluetooth. To upgrade the existing installed kernel (created from my ISO or as a result of a previous upgrade) to the later version provided by the script first download the script and after making it executable (enter chmod 755 <script>) install it as root (by entering sudo <script>). Once the script has finished executing the device will need to be rebooted to use the updated (patched) kernel.
4.10.0-9.11~16.04.2 (superseded)
4.10.0-9.11 (superseded)
Dont forget when making a comment to include the name/model of your device and if reporting a technical issue please include a copy of the output from dmesg by sharing the log using pastebinit or similar.
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