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wiki:1204_hwe_eol [2014/07/16 19:42] создано |
wiki:1204_hwe_eol [2014/07/16 19:56] [FAQ] |
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| - | <<TableOfContents()>> | + | ====== Hardware Enablement Stacks ====== |
| - | = What is HWE? = | + | ===== What is HWE? ===== |
| Hardware Enablement Stacks (HWE) are incorporated into installers for select Ubuntu LTS (Long Term Support) point releases. It is a special Ubuntu feature that provides an LTS release with hardware support introduced in newer Ubuntu releases. For Ubuntu 12.04 the point releases are .2/.3/.4/.5 and the corresponding Ubuntu releases are 12.10/13.04/13.10/14.04. | Hardware Enablement Stacks (HWE) are incorporated into installers for select Ubuntu LTS (Long Term Support) point releases. It is a special Ubuntu feature that provides an LTS release with hardware support introduced in newer Ubuntu releases. For Ubuntu 12.04 the point releases are .2/.3/.4/.5 and the corresponding Ubuntu releases are 12.10/13.04/13.10/14.04. | ||
| Строка 7: | Строка 7: | ||
| The HWE path can be obtained in 2 ways: | The HWE path can be obtained in 2 ways: | ||
| - | 1. Installing Ubuntu from the media (ISO) for these point releases (where HWE is used by default) | + | 1. Installing Ubuntu from the media (ISO) for these point releases (where HWE is used by default) |
| - | 1. Manually installing some packages | + | 2. Manually installing some packages |
| End-of-life (EOL) for 12.04, 12.04.1, and 12.04.5 HWE is April 2017 but for the other HWE stacks it is roughly when 14.04.1 is released: Aug 8, 2014. | End-of-life (EOL) for 12.04, 12.04.1, and 12.04.5 HWE is April 2017 but for the other HWE stacks it is roughly when 14.04.1 is released: Aug 8, 2014. | ||
| Строка 14: | Строка 14: | ||
| Further reading: | Further reading: | ||
| - | * https://wiki.ubuntu.com/Kernel/LTSEnablementStack (HWE details) | + | * https://wiki.ubuntu.com/Kernel/LTSEnablementStack (HWE details) |
| - | * https://wiki.ubuntu.com/Kernel/Support (Kernel team) | + | * https://wiki.ubuntu.com/Kernel/Support (Kernel team) |
| - | = And why should I care? = | + | ===== And why should I care? ===== |
| Starting Aug 8, 2014 systems running 12.04.2 HWE, 12.04.3 HWE, or 12.04.4 HWE will no longer receive software updates for the kernel and, if you're running it, the graphics stack. | Starting Aug 8, 2014 systems running 12.04.2 HWE, 12.04.3 HWE, or 12.04.4 HWE will no longer receive software updates for the kernel and, if you're running it, the graphics stack. | ||
| - | = How do I know if I'm affected? = | + | ===== How do I know if I'm affected? ===== |
| You can: | You can: | ||
| - | 1. use a tool expressly designed to let you know | + | 1. use a tool expressly designed to let you know |
| - | 1. look at what packages you have installed | + | 2. look at what packages you have installed |
| - | == Tool == | + | ===== Tool ===== |
| The tool is called '''hwe-support-status''' and it will be available first in the -proposed and then in the -updates repositories: | The tool is called '''hwe-support-status''' and it will be available first in the -proposed and then in the -updates repositories: | ||
| - | * precise-proposed (by June 13) | + | * precise-proposed (by June 13) |
| - | * precise-updates (by June 27) | + | * precise-updates (by June 27) |
| It will become available in package '''update-manager-core'''. | It will become available in package '''update-manager-core'''. | ||
| Строка 39: | Строка 39: | ||
| To run: | To run: | ||
| - | {{{ | + | <code bash> |
| hwe-support-status --verbose | hwe-support-status --verbose | ||
| - | }}} | + | </code> |
| Get it from Launchpad if you want it earlier: | Get it from Launchpad if you want it earlier: | ||
| - | {{{ | + | <code bash> |
| sudo apt-get install bzr -y | sudo apt-get install bzr -y | ||
| cd ~ | cd ~ | ||
| Строка 51: | Строка 51: | ||
| cd hwe-support-status | cd hwe-support-status | ||
| ./hwe-support-status --verbose | ./hwe-support-status --verbose | ||
| - | }}} | + | </code> |
| Notes on this tool: | Notes on this tool: | ||
| - | * Contains the central logic used by other mechanisms/software that have been modified to alert the user of HWE EOL. These are: | + | * Contains the central logic used by other mechanisms/software that have been modified to alert the user of HWE EOL. These are: |
| 1. update-manager (desktop) | 1. update-manager (desktop) | ||
| - | 1. update-notifier | + | 2. update-notifier |
| - | 1. ubuntu-support-status | + | 3. ubuntu-support-status |
| - | * On affected systems, it provides command line instructions for machines not running a graphics stack (typically servers). It will refer you to a graphical tool (update-manager) if a graphics stack is detected (typically desktops). | + | * On affected systems, it provides command line instructions for machines not running a graphics stack (typically servers). It will refer you to a graphical tool (update-manager) if a graphics stack is detected (typically desktops). |
| - | == Packages == | + | ===== Packages ===== |
| Check your running kernel version: | Check your running kernel version: | ||
| - | {{{ | + | <code bash> |
| uname -r | uname -r | ||
| - | }}} | + | </code> |
| - | * you are affected if it shows a kernel in these series: 3.5 or 3.8 or 3.11 | + | * you are affected if it shows a kernel in these series: 3.5 or 3.8 or 3.11 |
| - | * you are not affected if it shows a kernel in these series: 3.2 or 3.13 | + | * you are not affected if it shows a kernel in these series: 3.2 or 3.13 |
| This method does not check for a graphics stack HWE. However, you cannot get a HWE graphics stack without a corresponding HWE kernel unless you've done things manually. Note that such a combination (HWE graphics with non-HWE kernel) is not supported. | This method does not check for a graphics stack HWE. However, you cannot get a HWE graphics stack without a corresponding HWE kernel unless you've done things manually. Note that such a combination (HWE graphics with non-HWE kernel) is not supported. | ||
| - | = What to do if I'm affected? = | + | ===== What to do if I'm affected? ===== |
| You have three options: | You have three options: | ||
| - | 1. Install 12.04.5 HWE (Trusty kernel/graphics) | + | 1. Install 12.04.5 HWE (Trusty kernel/graphics) |
| - | 1. Upgrade to 14.04 LTS | + | 2. Upgrade to 14.04 LTS |
| - | 1. Fresh install of 14.04 LTS | + | 3. Fresh install of 14.04 LTS |
| - | == 1. Install 12.04.5 HWE (Trusty kernel/graphics) == | + | ===== 1. Install 12.04.5 HWE (Trusty kernel/graphics) ===== |
| The hwe-support-status tool will tell you what you need to do. | The hwe-support-status tool will tell you what you need to do. | ||
| - | == 2. Upgrade to 14.04 LTS == | + | ===== 2. Upgrade to 14.04 LTS ===== |
| The hwe-support-status tool will tell you what you need to do. | The hwe-support-status tool will tell you what you need to do. | ||
| Строка 94: | Строка 94: | ||
| If you want to upgrade a desktop system to 14.04 before July 16, 2014 (the date at which all necessary software components are in the regular -updates repository) you will need to invoke update-manager from the command line: | If you want to upgrade a desktop system to 14.04 before July 16, 2014 (the date at which all necessary software components are in the regular -updates repository) you will need to invoke update-manager from the command line: | ||
| - | {{{ | + | <code bash> |
| update-manager -p | update-manager -p | ||
| - | }}} | + | </code> |
| For both servers and desktops it's strongly recommended to ensure a system is in a good state before upgrading. Here are some tips: | For both servers and desktops it's strongly recommended to ensure a system is in a good state before upgrading. Here are some tips: | ||
| - | * Enough free space (2x the size of all installed packages) | + | * Enough free space (2x the size of all installed packages) |
| - | * Update all packages | + | * Update all packages |
| - | * Run ''sudo apt-get autoremove'' to clean up old packages | + | * Run ''sudo apt-get autoremove'' to clean up old packages |
| - | * Ensure a reboot works normally (and on dual boot Linux machines, note which operating system controls the bootloader/GRUB) | + | * Ensure a reboot works normally (and on dual boot Linux machines, note which operating system controls the bootloader/GRUB) |
| - | * Perform a backup of important data | + | * Perform a backup of important data |
| - | == 3. Fresh install of 14.04 LTS == | + | ===== 3. Fresh install of 14.04 LTS ===== |
| Redeploy with a fresh copy of Ubuntu 14.04 LTS. | Redeploy with a fresh copy of Ubuntu 14.04 LTS. | ||
| - | = FAQ = | + | ===== FAQ ===== |
| - | * '''I am running 12.04.2 HWE. From August 8, 2014 onwards my system will no longer receive package updates?''' | + | * '''I am running 12.04.2 HWE. From August 8, 2014 onwards my system will no longer receive package updates?''' |
| Not true. Such a system will only stop receiving updates for the kernel and the graphics stack. The rest of the software will continue to get updates. | Not true. Such a system will only stop receiving updates for the kernel and the graphics stack. The rest of the software will continue to get updates. | ||
| - | * '''So if I am running 12.04.3 (as seen from ''lsb_release -d'') then starting from August 8, 2014 my kernel and graphics stack will no longer receive package updates?''' | + | * '''So if I am running 12.04.3 (as seen from ''lsb_release -d'') then starting from August 8, 2014 my kernel and graphics stack will no longer receive package updates?''' |
| Not true. 12.04.3 is not 12.04.3 HWE. And since HWE (and thus a new kernel series) cannot be introduced through regular package updates it is possible to update a non-HWE system to arrive at a later point release, such as 12.04.3, and still preserve the EOL date of April 2017. | Not true. 12.04.3 is not 12.04.3 HWE. And since HWE (and thus a new kernel series) cannot be introduced through regular package updates it is possible to update a non-HWE system to arrive at a later point release, such as 12.04.3, and still preserve the EOL date of April 2017. | ||
| - | * '''What are the pros and cons of those options?''' | + | * '''What are the pros and cons of those options?''' |
| - | |||| HWE Upgrade Only || Full 14.04 Upgrade || Fresh 14.04 Install || | + | || HWE Upgrade Only || HWE Upgrade Only || Full 14.04 Upgrade || Fresh 14.04 Install || |
| || Kernel || 14.04/Trusty version (v3.13) || 14.04/Trusty version (v3.13) || 14.04/Trusty version (v3.13) || | || Kernel || 14.04/Trusty version (v3.13) || 14.04/Trusty version (v3.13) || 14.04/Trusty version (v3.13) || | ||
| || Graphics || 14.04/Trusty Xorg and drivers || 14.04/Trusty Xorg and drivers || 14.04/Trusty Xorg and drivers || | || Graphics || 14.04/Trusty Xorg and drivers || 14.04/Trusty Xorg and drivers || 14.04/Trusty Xorg and drivers || | ||
