Common F17 bugs

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(add 796419 (dvd/boot.iso written to usb via l-i-t-d doesn't boot via efi))
(add 735268 and 795050 (poor kernel performance due to 795050 or debugging))
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If you write the Fedora 17 Alpha DVD or network install image to a USB drive using the {{command|livecd-iso-to-disk}} tool provided in the {{package|livecd-tools}} package (whatever version of Fedora you write the image from), using the --efi parameter which should result in a drive that can be booted via UEFI, it will not in fact succeed in booting the installer if booted via UEFI. After the bootloader menu is displayed, you will see a ''Error 15: File not found'' message.
 
If you write the Fedora 17 Alpha DVD or network install image to a USB drive using the {{command|livecd-iso-to-disk}} tool provided in the {{package|livecd-tools}} package (whatever version of Fedora you write the image from), using the --efi parameter which should result in a drive that can be booted via UEFI, it will not in fact succeed in booting the installer if booted via UEFI. After the bootloader menu is displayed, you will see a ''Error 15: File not found'' message.
  
An updated [http://admin.fedoraproject.org/updates/FEDORA-2012-2313/livecd-tools-17.6-1.fc17 livecd-tools] package has been submitted to the updates-testing repository for testing. Users experiencing this problem are encouraged to test this update and [http://admin.fedoraproject.org/updates/FEDORA-2012-2313/livecd-tools-17.6-1.fc17 livecd-tools] whether it solves the problem. To test the update, run this command:
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An updated [http://admin.fedoraproject.org/updates/FEDORA-2012-2313/livecd-tools-17.6-1.fc17 livecd-tools] package has been submitted to the updates-testing repository for testing. Users experiencing this problem are encouraged to test this update and [http://admin.fedoraproject.org/updates/FEDORA-2012-2313/livecd-tools-17.6-1.fc17 report] whether it solves the problem. To test the update, run this command:
<pre>su -c 'yum --enablerepo=updates-testing update (name)'</pre>
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<pre>su -c 'yum --enablerepo=updates-testing update livecd-tools'</pre>
  
 
The update is currently available only for Fedora 17, but if testing is successful it will be made available for Fedora 15 and Fedora 16. The drive will boot correctly to the installer if booted via BIOS or UEFI BIOS emulation, and if you specifically need to boot via UEFI, an image written via dd or a live image written via {{command|livecd-iso-to-disk --efi}} should work.
 
The update is currently available only for Fedora 17, but if testing is successful it will be made available for Fedora 15 and Fedora 16. The drive will boot correctly to the installer if booted via BIOS or UEFI BIOS emulation, and if you specifically need to boot via UEFI, an image written via dd or a live image written via {{command|livecd-iso-to-disk --efi}} should work.
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== Software issues ==
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{{Anchor|slooooooooooooooooow}}
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=== Poor performance issues ===
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<small>[[#slooooooooooooooooow|link to this item]] - [[rhbug:735268|Bugzilla: #735268]] - [[rhbug:795050|Bugzilla: #795050]]</small>
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A bug was identified in the kernel included in Fedora 17 Alpha which seems to cause very poor performance on certain systems. Not all systems are affected, but on those that are, almost all operations seem to be affected.
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An updated [http://admin.fedoraproject.org/updates/FEDORA-2012-2304/kernel-3.3.0-0.rc4.git1.4.fc17 kernel] package has been submitted to the updates-testing repository for testing. Users experiencing this problem are encouraged to test this update and [http://admin.fedoraproject.org/updates/FEDORA-2012-2304/kernel-3.3.0-0.rc4.git1.4.fc17] whether it solves the problem. To test the update, run this command:
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<pre>su -c 'yum --enablerepo=updates-testing update kernel'</pre>
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Please note also that, up until Beta, Fedora kernels are usually built with debugging options enabled. Some testers have noticed that debugging options appear to cause a higher performance overhead with more recent kernel versions (since approximately 2.6.39 or 3.0). You may notice a visible impact on performance with any Fedora kernel with debugging options enabled, but this is not really a bug. At Beta release time, we will switch to building kernels with debugging options disabled, and performance will improve.

Revision as of 05:40, 28 February 2012

This page documents common bugs in Fedora 16 and, if available, fixes or workarounds for these problems. If you find your problem in this page, do not file a bug for it, unless otherwise instructed. Where appropriate, a reference to the current bug(s) in Bugzilla is included.

Note.png
Fedora 17 pre-release
Fedora 17 has not yet been released. During this pre-release period, this page will cover known issues in the Fedora 17 pre-releases. Issues that are fixed will be removed from the page once a fix is available (for instance, an issue that affects the Beta but is fixed in the final release will be removed at the time of that release).

Contents

Release Notes

Read the F17 Alpha announcement and the Fedora 17 release notes for specific information about changes in Fedora 17 and other general information.

My bug is not listed

Not every bug is listed in this page, but Bugzilla should be a comprehensive database of known bugs. This page is a sampling of the bugs most commonly discussed on our mailing lists and forums.

To see if your bug has already been reported, you can search Bugzilla. If it has not yet been reported, we encourage you to do so to help improve Fedora for yourself and others. A guide to Bugs and feature requests has been prepared to assist you.

If you believe an already-reported bug report should be added to this page because it is commonly encountered, you can:

  • Add it yourself, if you have wiki access. Please follow the style and guidelines explained in the comments in the page source.
  • Or, add the CommonBugs keyword to the bug report. Someone from the QA team will then inspect the issue to determine whether the bug should be listed as a common bug. To expedite your request, please add a comment to the bug that includes
    1. a summary of the problem
    2. any known workarounds
    3. an assessment on the impact to Fedora users

For reference, you can query Bugzilla for bugs tagged CommonBugs:

  • CommonBugs? (bugs with CommonBugs keyword, but do not yet have a link to this page)
  • CommonBugs+(bugs with CommonBugs keyword and contain a link to this page)


Installation issues

DVD or network install image written to USB stick with livecd-iso-to-disk does not boot via UEFI

link to this item - Bugzilla: #796419

If you write the Fedora 17 Alpha DVD or network install image to a USB drive using the livecd-iso-to-disk tool provided in the Package-x-generic-16.pnglivecd-tools package (whatever version of Fedora you write the image from), using the --efi parameter which should result in a drive that can be booted via UEFI, it will not in fact succeed in booting the installer if booted via UEFI. After the bootloader menu is displayed, you will see a Error 15: File not found message.

An updated livecd-tools package has been submitted to the updates-testing repository for testing. Users experiencing this problem are encouraged to test this update and report whether it solves the problem. To test the update, run this command:

su -c 'yum --enablerepo=updates-testing update livecd-tools'

The update is currently available only for Fedora 17, but if testing is successful it will be made available for Fedora 15 and Fedora 16. The drive will boot correctly to the installer if booted via BIOS or UEFI BIOS emulation, and if you specifically need to boot via UEFI, an image written via dd or a live image written via livecd-iso-to-disk --efi should work.

Software issues

Poor performance issues

link to this item - Bugzilla: #735268 - Bugzilla: #795050

A bug was identified in the kernel included in Fedora 17 Alpha which seems to cause very poor performance on certain systems. Not all systems are affected, but on those that are, almost all operations seem to be affected.

An updated kernel package has been submitted to the updates-testing repository for testing. Users experiencing this problem are encouraged to test this update and [1] whether it solves the problem. To test the update, run this command:

su -c 'yum --enablerepo=updates-testing update kernel'

Please note also that, up until Beta, Fedora kernels are usually built with debugging options enabled. Some testers have noticed that debugging options appear to cause a higher performance overhead with more recent kernel versions (since approximately 2.6.39 or 3.0). You may notice a visible impact on performance with any Fedora kernel with debugging options enabled, but this is not really a bug. At Beta release time, we will switch to building kernels with debugging options disabled, and performance will improve.