Preparing the Ubuntu 15.04 installation medium. Download the most recent 64-bit Ubuntu 15.04 (Vivid Vervid) ISO. Create a bootable USB storage medium as usual. Modify the installation medium to boot on 32-bit UEFI. Yes, some genius came up with the idea to put a 32-bit UEFI on a 64-bit device. Ubuntu 15.10 Boot Screen. If you want to take Ubuntu out for a spin you can choose 'Try Ubuntu without installing'. That way you can try the new features of Ubuntu without installing it. If you are sure you want to run the installation, then choose 'Install Ubuntu'. Can a ps3 read exfat. For the purpose of this tutorial, I will be using the second option as. I need some help with my new Ubuntu 15.04 VM. I tryied to install the pip module telnetlib3 but I got some errors: pip install telnetlib3 Downloading/unpacking telnetlib3 Downloading telnetlib3. The minimum requirements were last mentioned in Kubuntu 8.04 news announcement, then merely copied from Ubuntu 12.04 release note and has since deprecated, and not found at elsewhere. The minimum requirements for newer release is unofficial and subject to testing on real hardware or in a virtual machine (VM). Root@ubuntu-15:# visudo # User privilege specification root ALL=(ALL:ALL) ALL git ALL=(ALL:ALL) ALL Start Installation Process. First we need to install the prerequisites that are necessary for Gogs setup. Git Installation. Ubuntu 15.04 comes with pre installed git latest version, so don't need to re install it.
Installing Ruby
Choose the version of Ruby you want to install:
The first step is to install some dependencies for Ruby and Rails.
To make sure we have everything necessary for Webpacker support in Rails, we're first going to start by adding the Node.js and Yarn repositories to our system before installing them.
Next we're going to be installing Ruby using one of three methods. Each have their own benefits, most people prefer using rbenv these days, but if you're familiar with rvm you can follow those steps as well. I've included instructions for installing from source as well, but in general, you'll want to choose either rbenv or rvm.
Choose one method. Some of these conflict with each other, so choose the one that sounds the most interesting to you, or go with my suggestion, rbenv.
Installing with rbenv is a simple two step process. First you install rbenv, and then ruby-build:
Arguably the least useful Ruby setup for development is installing from source, but I thought I'd give you the steps anyways:
Jw broadcasting june 2017 tagalog. The last step is to install Bundler
rbenv users need to run rbenv rehash after installing bundler.
Configuring Git
We'll be using Git for our version control system so we're going to set it up to match our Github account. If you don't already have a Github account, make sure to register. It will come in handy for the future.
Replace my name and email address in the following steps with the ones you used for your Github account.
The next step is to take the newly generated SSH key and add it to your Github account. You want to copy and paste the output of the following command and paste it here.
Once you've done this, you can check and see if it worked:
You should get a message like this:
Installing Rails
Choose the version of Rails you want to install:
If you're using rbenv, you'll need to run the following command to make the rails executable available:
Now that you've installed Rails, you can run the rails -v command to make sure you have everything installed correctly:
If you get a different result for some reason, it means your environment may not be setup properly.
Setting Up A Database
Rails ships with sqlite3 as the default database. Chances are you won't want to use it because it's stored as a simple file on disk. You'll probably want something more robust like MySQL or PostgreSQL.
There is a lot of documentation on both, so you can just pick one that seems like you'll be more comfortable with.
If you're new to Ruby on Rails or databases in general, I strongly recommend setting up PostgreSQL.
If you're coming from PHP, you may already be familiar with MySQL.
Setting Up MySQL
Rails ships with sqlite3 as the default database. Chances are you won't want to use it because it's stored as a simple file on disk. You'll probably want something more robust like MySQL or PostgreSQL.
There is a lot of documentation on both, so you can just pick one that seems like you'll be more comfortable with.
If you're new to Ruby on Rails or databases in general, I strongly recommend setting up PostgreSQL.
If you're coming from PHP, you may already be familiar with MySQL.
You can install MySQL server and client from the packages in the Ubuntu repository. As part of the installation process, you'll set the password for the root user. This information will go into your Rails app's database.yml file in the future.
Installing the libmysqlclient-dev gives you the necessary files to compile the mysql2 gem which is what Rails will use to connect to MySQL when you setup your Rails app.
When you're finished, you can skip to the Final Steps.
Setting Up PostgreSQL
For PostgreSQL, we're going to add a new repository to easily install a recent version of Postgres.
The postgres installation doesn't setup a user for you, so you'll need to follow these steps to create a user with permission to create databases. Feel free to replace chris with your username.
Final Steps
And now for the moment of truth. Let's create your first Rails application:
Ubuntu 15.04 Requirements
You can now visit http://localhost:3000 to view your new website!
https://dislecami1986.wixsite.com/communicationsoftwar/post/next-cod-game-after-ww2. Now that you've got your machine setup, it's time to start building some Rails applications.
If you received an error that said Access denied for user 'root'@'localhost' (using password: NO) then you need to update your config/database.yml file to match the database username and password.
This article is based on my previous version. I no longer use Ubuntu 15.04, but 14.10, because 15.04 switched to the 3.18 kernel which is incompatible with the eMMC flash in my tablet.
Requirements
- A BayTrail tablet, probably running Windows 8.1. I got a Lenovo ThinkPad Tablet 8 for the special price of 180 € from a local retailer.
- An USB-On-the-Go-Adapter. USB 2.0 will work, but you really want USB 3.0.
- A powered (!) USB hub. USB 2.0 will work, but you really want USB 3.0. If the hub is not powered, be prepared for USB resets or even a complete disconnect every time you connect a new device, because the tablet may not be able to supply enough power.
- An USB storage medium to boot from.
- An USB keyboard and USB Mouse.
- An USB network adapter, either Ethernet or WiFi, supported by Ubuntu 14.10, if the built-in WiFi of your device doesn't work.
- Optional: A storage medium (USB, SD-Card etc.) big enough to back up the Windows installation. I used a 64 GB SD-Card.
Current status on the Thinkpad Tablet 8
What works:
- CPU initialisation and SMP (all four cores are working)
- GPU initialisation, accelerated 2D, 3D and video
- Touchscreen
- Backlight
- USB 3.0 On-the-go
What doesn't work:
- ACPI battery detection: The battery is not detected.
- WiFi: The brcmfmac driver needs you to create a configuration file named
/lib/firmware/brcm/brcmfmac43241b4-sdio.txt. The content of this file can be extracted from the UEFI vars, at least on my tablet the variable is called/sys/firmware/efi/efivars/nvram-74b00bd9-805a-4d61-b51f-43268123d113. Everything is present, the brcmfmac driver is loaded and doesn't complain, but at the end the kernel does not report any wireless devices. - Bluetooth: Is bundled with the WiFi.
- Sound: Was not working and I didn't try to fix it.
- The two cameras: Connected via some obscure bus (MIPI-CSI) which isn't supported.
A word about kernels
I couldn't get any of the stable kernels from kernel.org working because they have problems with the internal eMMC flash in my ThinkPad Tablet 8 (see this emailing list discussion). After at most 20 minutes the kernel freezes and the last message is 'mmc0: Timeout waiting for hardware interrupt'.
Ubuntu 14.04 and 14.10 kernels work, obviously because they have been patched. At the moment I don't know exactly what has to be patched. The Ubuntu 15.04 kernel does not work.
Installation
Disabling Secure Boot using Windows
- Boot into Windows.
- Go into 'PC settings'.
- Select 'General' (Windows 8) or 'Update and recovery' (Windows 8.1).
- Under 'Advanced startup', click on 'Restart now'.
- At this point I'm not completely sure how the story went, and I can no loner check, since the Windows installation on my tablet is already gone. You are looking for some way to get into the UEFI firmware settings, probably hidden behind Items like 'Troubleshoot', 'Advanced options' etc.
- Once you are in the UEFI menu, disable Secure Boot.
- Set the Boot Order so that external USB drives are at the top and listed before the internal storage. Different manufacturers seem to use different UEFI firmwares with different menus, so you have to find the options yourself.
- Power off.
The tablet is now prepared.
Disabling Secure Boot by directly booting into the UEFI menu
At least the ThinkPad Tablet 8 can be directly booted into UEFI by powering off the device and then pressing the Volume-Up- and Power-button until the display turns on. If you press the buttons for too long, the tablet will turn off again! Descargar autotune 5.
Once you are in the UEFI menu, disable Secure Boot. Set the Boot Order so that external USB drives are at the top and listed before the internal storage. Different manufacturers seem to use different UEFI firmwares with different menus, so you have to find the options yourself.
The tablet is now prepared.
Preparing the Ubuntu 14.10 installation medium
*** NOTE: In my earlier version I suggested to download the latest version of
- Download the most recent 64-bit Ubuntu 14.10 (Utopic Unicorn) Desktop ISO.
- Create a bootable USB storage medium as usual, e.g. using usb-creator-gtk.
Modifying the installation medium to boot on 32-bit UEFI
Yes, some genius came up with the idea to put a 32-bit UEFI on a 64-bit device. The Linux kernel shipped with Ubuntu 14.10 supports mixed-mode, so kernel-wise it is no longer a problem. But the Ubuntu 14.10 (Vivid Vervid) ISO does not contain a 32-bit bootloader. Luckily this can be easily fixed.
- Get a
bootia32.efifile, I used this one from John Wells. - Copy the file into the
EFI/BOOT/folder on the boot medium.
Booting from the modified boot medium
- Power off the tablet, if necessary.
- Attach the USB-On-the-Go-Adapter to the tablet.
- Connect the USB hub to the adapter.
- Connect the boot medium to the USB hub.
- Connect the keyboard and mouse to the hub.
- Start the tablet.
- The device should boot from the boot medium.
If you can't get the tablet to boot from the USB storage medium, try booting into the UEFI menu again and check if it is possible to enable a Boot Device selection screen. The Thinkpad Tablet 8 has an option to boot into such a screen if the F12 key is pressed after device power-on.
Backing up the Windows installation
I just started a terminal in the Live Session and used dd to backup all internal flash partitions to individual files on an SD-Card.
Installing Ubuntu 14.10 on the device
System Requirements Ubuntu 14.04 Lts
- Start a terminal session and switch do root (using
sudo -ior something similar) - Run
parted - Preserve the first two partitions (EFI and Windows Recovery) and delete all other partitions
- Create a large ext4 partition in the remaining space
- Create a small swap partition in the remaining space (e.g. 4 GB)
- Write to disk and exit
Adobe raw reader. I don't trust the flash storage, so I created the filesystem manually and told mkfs.ext4 to check for bad blocks:
Minimum Requirements Ubuntu 14.04
mkfs.ext4 -v -c /dev/mmcblk0p3
After this I just used the Ubuntu Installer, chose 'Partition manually' and configured as follows:
- The EFI partition (should be the first one) shall be used as EFI partition
- The just-created ext4 partition (should be the third one) shall be used as the root filesystem. Deactivate the 'Format' checkbox if it is set.
- The swap partition shall be used as a swap partition.
Installing 32-bit GRUB
Ubuntu 15.04 comes with a 32-Bit GRUB package, but 14.10 does not, so we have to do it the hard way.
The following steps are common to both methods:
- Reboot the device, with the USB storage medium plugged in.
- Wait until the device has booted into GRUB from the USB storage medium.
- Hit 'c' on the keyboard to drop to the GRUB shell.
- Input the following two lines, adapting all device and partition identifiers and kernel versions to your setup (GRUB has autocompletion!):
- Boot with the command 'boot'.
- If the system doesn't boot, go back to step 1.
- Log into the Ubuntu installation.
- Connect to the internet using the internal WiFi or your USB network adapter.
Doing it the hard way
Reboot and manually boot into your new installation:
- Open a terminal and install the dependencies:
If you're coming from PHP, you may already be familiar with MySQL.
Setting Up MySQL
Rails ships with sqlite3 as the default database. Chances are you won't want to use it because it's stored as a simple file on disk. You'll probably want something more robust like MySQL or PostgreSQL.
There is a lot of documentation on both, so you can just pick one that seems like you'll be more comfortable with.
If you're new to Ruby on Rails or databases in general, I strongly recommend setting up PostgreSQL.
If you're coming from PHP, you may already be familiar with MySQL.
You can install MySQL server and client from the packages in the Ubuntu repository. As part of the installation process, you'll set the password for the root user. This information will go into your Rails app's database.yml file in the future.
Installing the libmysqlclient-dev gives you the necessary files to compile the mysql2 gem which is what Rails will use to connect to MySQL when you setup your Rails app.
When you're finished, you can skip to the Final Steps.
Setting Up PostgreSQL
For PostgreSQL, we're going to add a new repository to easily install a recent version of Postgres.
The postgres installation doesn't setup a user for you, so you'll need to follow these steps to create a user with permission to create databases. Feel free to replace chris with your username.
Final Steps
And now for the moment of truth. Let's create your first Rails application:
Ubuntu 15.04 Requirements
You can now visit http://localhost:3000 to view your new website!
https://dislecami1986.wixsite.com/communicationsoftwar/post/next-cod-game-after-ww2. Now that you've got your machine setup, it's time to start building some Rails applications.
If you received an error that said Access denied for user 'root'@'localhost' (using password: NO) then you need to update your config/database.yml file to match the database username and password.
This article is based on my previous version. I no longer use Ubuntu 15.04, but 14.10, because 15.04 switched to the 3.18 kernel which is incompatible with the eMMC flash in my tablet.
Requirements
- A BayTrail tablet, probably running Windows 8.1. I got a Lenovo ThinkPad Tablet 8 for the special price of 180 € from a local retailer.
- An USB-On-the-Go-Adapter. USB 2.0 will work, but you really want USB 3.0.
- A powered (!) USB hub. USB 2.0 will work, but you really want USB 3.0. If the hub is not powered, be prepared for USB resets or even a complete disconnect every time you connect a new device, because the tablet may not be able to supply enough power.
- An USB storage medium to boot from.
- An USB keyboard and USB Mouse.
- An USB network adapter, either Ethernet or WiFi, supported by Ubuntu 14.10, if the built-in WiFi of your device doesn't work.
- Optional: A storage medium (USB, SD-Card etc.) big enough to back up the Windows installation. I used a 64 GB SD-Card.
Current status on the Thinkpad Tablet 8
What works:
- CPU initialisation and SMP (all four cores are working)
- GPU initialisation, accelerated 2D, 3D and video
- Touchscreen
- Backlight
- USB 3.0 On-the-go
What doesn't work:
- ACPI battery detection: The battery is not detected.
- WiFi: The brcmfmac driver needs you to create a configuration file named
/lib/firmware/brcm/brcmfmac43241b4-sdio.txt. The content of this file can be extracted from the UEFI vars, at least on my tablet the variable is called/sys/firmware/efi/efivars/nvram-74b00bd9-805a-4d61-b51f-43268123d113. Everything is present, the brcmfmac driver is loaded and doesn't complain, but at the end the kernel does not report any wireless devices. - Bluetooth: Is bundled with the WiFi.
- Sound: Was not working and I didn't try to fix it.
- The two cameras: Connected via some obscure bus (MIPI-CSI) which isn't supported.
A word about kernels
I couldn't get any of the stable kernels from kernel.org working because they have problems with the internal eMMC flash in my ThinkPad Tablet 8 (see this emailing list discussion). After at most 20 minutes the kernel freezes and the last message is 'mmc0: Timeout waiting for hardware interrupt'.
Ubuntu 14.04 and 14.10 kernels work, obviously because they have been patched. At the moment I don't know exactly what has to be patched. The Ubuntu 15.04 kernel does not work.
Installation
Disabling Secure Boot using Windows
- Boot into Windows.
- Go into 'PC settings'.
- Select 'General' (Windows 8) or 'Update and recovery' (Windows 8.1).
- Under 'Advanced startup', click on 'Restart now'.
- At this point I'm not completely sure how the story went, and I can no loner check, since the Windows installation on my tablet is already gone. You are looking for some way to get into the UEFI firmware settings, probably hidden behind Items like 'Troubleshoot', 'Advanced options' etc.
- Once you are in the UEFI menu, disable Secure Boot.
- Set the Boot Order so that external USB drives are at the top and listed before the internal storage. Different manufacturers seem to use different UEFI firmwares with different menus, so you have to find the options yourself.
- Power off.
The tablet is now prepared.
Disabling Secure Boot by directly booting into the UEFI menu
At least the ThinkPad Tablet 8 can be directly booted into UEFI by powering off the device and then pressing the Volume-Up- and Power-button until the display turns on. If you press the buttons for too long, the tablet will turn off again! Descargar autotune 5.
Once you are in the UEFI menu, disable Secure Boot. Set the Boot Order so that external USB drives are at the top and listed before the internal storage. Different manufacturers seem to use different UEFI firmwares with different menus, so you have to find the options yourself.
The tablet is now prepared.
Preparing the Ubuntu 14.10 installation medium
*** NOTE: In my earlier version I suggested to download the latest version of
- Download the most recent 64-bit Ubuntu 14.10 (Utopic Unicorn) Desktop ISO.
- Create a bootable USB storage medium as usual, e.g. using usb-creator-gtk.
Modifying the installation medium to boot on 32-bit UEFI
Yes, some genius came up with the idea to put a 32-bit UEFI on a 64-bit device. The Linux kernel shipped with Ubuntu 14.10 supports mixed-mode, so kernel-wise it is no longer a problem. But the Ubuntu 14.10 (Vivid Vervid) ISO does not contain a 32-bit bootloader. Luckily this can be easily fixed.
- Get a
bootia32.efifile, I used this one from John Wells. - Copy the file into the
EFI/BOOT/folder on the boot medium.
Booting from the modified boot medium
- Power off the tablet, if necessary.
- Attach the USB-On-the-Go-Adapter to the tablet.
- Connect the USB hub to the adapter.
- Connect the boot medium to the USB hub.
- Connect the keyboard and mouse to the hub.
- Start the tablet.
- The device should boot from the boot medium.
If you can't get the tablet to boot from the USB storage medium, try booting into the UEFI menu again and check if it is possible to enable a Boot Device selection screen. The Thinkpad Tablet 8 has an option to boot into such a screen if the F12 key is pressed after device power-on.
Backing up the Windows installation
I just started a terminal in the Live Session and used dd to backup all internal flash partitions to individual files on an SD-Card.
Installing Ubuntu 14.10 on the device
System Requirements Ubuntu 14.04 Lts
- Start a terminal session and switch do root (using
sudo -ior something similar) - Run
parted - Preserve the first two partitions (EFI and Windows Recovery) and delete all other partitions
- Create a large ext4 partition in the remaining space
- Create a small swap partition in the remaining space (e.g. 4 GB)
- Write to disk and exit
Adobe raw reader. I don't trust the flash storage, so I created the filesystem manually and told mkfs.ext4 to check for bad blocks:
Minimum Requirements Ubuntu 14.04
mkfs.ext4 -v -c /dev/mmcblk0p3
After this I just used the Ubuntu Installer, chose 'Partition manually' and configured as follows:
- The EFI partition (should be the first one) shall be used as EFI partition
- The just-created ext4 partition (should be the third one) shall be used as the root filesystem. Deactivate the 'Format' checkbox if it is set.
- The swap partition shall be used as a swap partition.
Installing 32-bit GRUB
Ubuntu 15.04 comes with a 32-Bit GRUB package, but 14.10 does not, so we have to do it the hard way.
The following steps are common to both methods:
- Reboot the device, with the USB storage medium plugged in.
- Wait until the device has booted into GRUB from the USB storage medium.
- Hit 'c' on the keyboard to drop to the GRUB shell.
- Input the following two lines, adapting all device and partition identifiers and kernel versions to your setup (GRUB has autocompletion!):
- Boot with the command 'boot'.
- If the system doesn't boot, go back to step 1.
- Log into the Ubuntu installation.
- Connect to the internet using the internal WiFi or your USB network adapter.
Doing it the hard way
Reboot and manually boot into your new installation:
- Open a terminal and install the dependencies:
- Open a terminal and check out the GRUB git repository:
- Build a 32-bit GRUB:
- Install 32-bit grub:
- Replace the Ubuntu bootloader with our GRUB one, making sure that there are only the listed files in the directory:
- Update the grub config:
You can set the UEFI boot order using the efibootmgr command, but I am not completely sure as to what the correct settings are. The following settings were generated by update-grub and seem to works on my tablet:
The probably much better way (only available on Ubuntu 15.04)
- Open a terminal and install the
grub-efi-ia32-binpackage:
- Update the grub config:
The end
Now your device should boot into the Ubuntu installation on every boot. If it doesn't, try to fiddle with the boot order list. You can always boot into your installation by booting from the external USB storage medium and going through the GRUB console, as shown before.
As always you can find me on the FreeNode IRC.
