Features/MultipathInstall
From FedoraProject
< Features(Difference between revisions)
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== Summary == | == Summary == | ||
| − | Anaconda | + | Anaconda adds the ability to correctly identify and set up multipath devices for use as installation targets. |
== Owner == | == Owner == | ||
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== Current status == | == Current status == | ||
| − | * Targeted release: [[Releases/ | + | * Targeted release: [[Releases/? | Fedora ? ]] |
| − | * Last updated: | + | * Last updated: 9-Feb-2010 |
| − | * Percentage of completion: | + | * Percentage of completion: 95% |
== Detailed Description == | == Detailed Description == | ||
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* dracut (100% done) | * dracut (100% done) | ||
* device-mapper-multipath (100% done) | * device-mapper-multipath (100% done) | ||
| − | * lvm ( | + | * lvm (100% done, I think) |
| − | * kernel ( | + | * kernel (100% done) |
| − | * grubby ( | + | * grubby (100% done) |
== Contingency Plan == | == Contingency Plan == | ||
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* See [[Talk:Features/MultipathInstall]] | * See [[Talk:Features/MultipathInstall]] | ||
| − | [[Category: | + | [[Category:FeaturePageIncomplete]] |
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Latest revision as of 21:49, 3 August 2010
Contents |
[edit] Multipath Installation
[edit] Summary
Anaconda adds the ability to correctly identify and set up multipath devices for use as installation targets.
[edit] Owner
- Name: Peter Jones
- Email: pjones@redhat.com
[edit] Current status
- Targeted release: Fedora ?
- Last updated: 9-Feb-2010
- Percentage of completion: 95%
[edit] Detailed Description
This feature adds support for installing to a multipath device and booting from such a device.
[edit] Benefit to Fedora
This is a hardware enabling feature. It allows Fedora to be installed on machines which were previously problematic.
[edit] Scope
This has repercussions in several packages:
- Anaconda
- identification/setup before install
- configure dracut to build a hostonly initrd
- grubby/kernel:
- build initrd at the end of the installation rather than as soon as the kernel is installed
- dracut
- assemble mpath devices during boot in order to correctly find the root filesystem
[edit] How To Test
- install to a machine with multipath storage.
- Ideally, test devices should include active/active and active/passive configurations.
- see if it boots correctly afterwards
- boot, and then run "dmsetup ls" and "dmsetup table" as root, making sure that the output indicates that / is indeed using a multipath device.
[edit] User Experience
During installation, multipath devices should show up on the "multipath" tab under "Specialized Storage Devices", and the constituent devices should not be present.
[edit] Dependencies
This depends on changes to:
- anaconda (80% done (kickstart support is TODO))
- dracut (100% done)
- device-mapper-multipath (100% done)
- lvm (100% done, I think)
- kernel (100% done)
- grubby (100% done)
[edit] Contingency Plan
- None necessary - hardware that doesn't install correctly still won't install correctly.
[edit] Documentation
- No separate docs at this time; we will add some for kickstart support. There's also some documentation of the UI as part of the storage design page.
[edit] Release Notes
- anaconda now supports installation to multipath devices.
