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Revision as of 20:12, 1 May 2010
This page documents common bugs in Fedora 21 and, if available, fixes or workarounds for these problems. If you find your problem in this page, please do not file a bug for it, unless otherwise instructed. Where appropriate, a reference to the current bug(s) in Bugzilla is included.
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. Common_bugs_instructions provides guidance on how to add an entry to the page correctly, but the most important thing is to make sure that the bug is listed - don't worry if you don't get the format quite right, we can clean it up later.
- 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
- a summary of the problem
- any known workarounds
- 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)
Cannot place bootloader target partition (e.g.
/boot/efi) on a disk other than the first in custom partitioning
You may encounter this bug when doing custom partitioning with more than one disk, and installing on a system whose firmware requires a partition as the location for the bootloader stage1 - e.g.
/boot/efi for UEFI systems,
/boot/uboot for some ARM systems, or a PReP boot partition for PowerPC systems.
If you attempt to create the partition on a disk other than the first (which will be the disk shown furthest to the left on the disk selection screen), the installer may complain that a valid bootloader partition has not been created.
A simple way to work around this is to place the boot partition on the first disk, if this is not inconvenient or impossible for your desired layout.
If you do want or need the boot partition to be on a later disk, you can work around the error. To do this, configure the desired layout, and complete custom partitioning despite the error message (by clicking Done twice). Go back into the Installation Destination screen, and click Full disk summary and bootloader.... Select the disk on which you placed the boot partition, and click Set as Boot Device. Click Close, then click Done, and click Done again on the custom partitioning screen without changing anything. This should clear the error condition and cause the installer to be happy with the boot partition being on the chosen disk.
Note that selecting the desired 'boot disk' before entering custom partitioning and creating your layout will not work (though it ought to - the fact that it does not is a related bug). You must use this slightly more unusual workaround instead. We do apologize for the inconvenience.
An installer updates image which fixes this bug is also available at https://adamwill.fedorapeople.org/updates/updates-1168118.img .
Fedora 21 images do not boot on Chromebook systems
Several people have reported that they cannot boot Fedora 21 images on various Chromebook systems. At present our best theory is that this is an issue affecting the firmware code used to allow boot of other operating systems on Chromebook hardware. No solution or workaround has yet been found, but it has been reported that Fedora 20 images boot successfully, and it is possible to install Fedora 20 and upgrade to Fedora 21, and the upgraded system will boot successfully.
If you use a
/boot partition shared with another installation of Fedora or any other Linux distribution, the Fedora 21 installation process will likely attempt to re-generate all the initramfs files present on the partition. In some cases, the re-generated initramfs files may not work correctly.
Due to the issue we would strongly advise against the use of shared
/boot partitions with Fedora 21. If you do wish to use one, we would recommend you back up all its contents before installing Fedora 21, so that you can recover from any issues caused by the installation process.
Various issues caused by multiple trips through Installation Destination (partitions re-ordered on Reclaim Space screen, crash during install)
Some circumstances have been discovered in Fedora 21 testing where multiple trips through the Installation Destination installer spoke can cause problems. One known case involves various scenarios where you select different sets of disks as install targets on multiple trips, and visit the Reclaim space screen each time. Sometimes, when doing this, partitions will be displayed in a different order on the Reclaim space screen. In some particular circumstances, the attributes of different partitions - their numbers and sizes - may be confused. In this case, we would recommend rebooting and restarting the installation process to avoid any possibility of inadvertently deleting or resizing the wrong partition.
Bug #1158975 reports two or three cases where multiple trips through Installation Destination and Reclaim space resulted in the installation process crashing during the partitioning phase.
In general we would recommend you try to avoid too many trips through the Installation Destination spoke. If you do run into either problem, retrying the installation without multiple trips through the spoke should result in a successful installation.
The installer development team is investigating various possible approaches to reducing the likelihood of the installer being confused by complex cases such as this for future releases.
Installer pauses for a long time shortly after starting up with existing ext storage volumes
There is an issue in the Fedora 21 installer which causes it to unnecessarily run a full filesystem consistency check (fsck) on all ext (ext2, ext3, ext4) storage volumes present on the system (it does this in the belief it's required before their minimum size for resizing purposes can be determined). Depending on the size and number of ext volumes, this can take some time, and there is no indication in the installer interface of what is happening while the checks are being run.
If the installer seems to be hung or frozen, and you have ext storage volumes - especially many, or large ones - this is likely the cause. The checks will eventually complete and the installer will continue to function as normal, so just be patient and wait for things to clear. We do apologize for the inconvenience.
This issue will be resolved in the next Fedora release.
Custom partitioning screen resizes and becomes unusable during German install at lower resolutions (possibly other languages)
This issue is most commonly encountered with German, but may affect other languages too. It's related to the lengths of text strings and the resolution of the screen. With longer text strings and lower resolutions, a bug can occur which causes the screen to resize and become more or less unusable. German is particularly affected due to its use of long words and sentences.
The best way to avoid this issue is to use the updates image above. If for any reason you cannot, the only known ways to deal with this issue are to avoid using custom partitioning (perhaps using a kickstart instead), use a different language (English, for instance, if you can speak it), or use a higher-resolution display if possible (if you are using virtualization, look into how you can configure your virtual machine to use a higher resolution 'display'; the higher the horizontal resolution, the less likely this issue is to occur). We do apologize for the inconvenience.
If you have Secure Boot enabled (remember: UEFI and Secure Boot are not the same thing), and you install Fedora 21 alongside other operating systems, you will probably find that the other operating systems will not boot from the Fedora boot menu, even if it adds entries for them.
You should be able to boot the other operating systems successfully from the system firmware interface. Firmware interfaces vary widely between systems, so we cannot provide precise instructions on how exactly to choose and boot another operating system on your particular computer. Please refer to your system firmware's documentation for instructions.
If your system's firmware does not make it easy or even possible to select a different operating system, you can use the
efibootmgr command from Fedora to instruct the system which OS to boot on the next startup. Running
efibootmgr alone will list the available boot choices on your system. Each has a number, shown in this output at the start of the line, like : in that case, the number is . Note these numbers are in hex, so you may see e.g. . To tell the system to boot a specific entry the next time it starts up, you can run
efibootmgr -n (number), e.g.
efibootmgr -n 0001 to boot the entry.
It is unlikely that we will be able to fix this issue in Fedora 21, but it may be fixed in future releases.
Cannot leave custom partitioning screen by clicking Done
In some unusual situations, you may find that you seem to be unable to leave the installer's custom partitioning screen by clicking the Done button. If you find yourself in this situation, clicking the Update settings button on the right hand side of the screen should resolve the issue, allowing you to leave the next time you click Done.
This bug happens when the Done button does not refresh the screen's state in the same way as the Update settings button does (which it is intended to do), and then the installer refuses to leave the screen because the state is not consistent.
In a GUI kickstart install which lists both environment groups and regular groups, regular groups are not installed
If you use a kickstart whose %packages sections lists both an environment group:
and one or more package groups:
and run a GUI install, the regular groups will not be installed. The environment group will be installed. Kickstarts that list only package groups (not environment groups) are not affected by this bug.
To work around this bug, run the installation in text mode rather than GUI mode: add
text to the kernel parameters. The bug is in the installer's GUI code, and the TUI code does not have the same bug.
Due to a bug in the
os-prober utility used to discover other operating systems, if you install Fedora 21 to a system which contains a Windows 7 installation, it may be misidentified as "Windows Vista" in the boot menu produced by the Fedora install. This is a cosmetic bug only, and the entry should boot Windows just fine (unless Secure Boot is enabled, as mentioned above). The issue may affect other Windows versions too. You can safely manually edit the bootloader configuration file to correct this issue, if you would like to.
Network install image offers all package groups
This is no longer considered a bug, exactly, but remains documented here for clarity. Initial Fedora 21 plans envisaged Server and Workstation releases each having their own network install images which, by default, would offer only the package groups relevant to that Flavor. However, it became clear that this design was difficult to implement and not really particularly desired by anyone.
For Fedora 21 Final, there will be a single designated network install image, built from the Server tree, which defaults to the Fedora Server package set but allows installation of all package groups. In practical terms it is little different from the network install image shipped with Fedora 20 and earlier except that it defaults to the Server package group rather than the GNOME desktop, and has Server visual branding. Despite this branding, in practice it is a universal network install image allowing deployment of all Fedora package sets. It can be used for doing network installs of the Workstation flavor in cases where this is preferable to installing from the live image (e.g. mass deployments).
32-bit Server DVD and network install images use generic installer artwork
The 32-bit Server DVD and network install images use the generic installer artwork (down the side or across the top of the various screens) which simply uses the Fedora logo, rather than the Server flavor logo seen on the 64-bit versions of the same media. This is an entirely cosmetic issue, and the images are clearly identified as Server in various text labels.
Downloading failed: Didn't install any keys
If you have enabled any third party repositories that are not included with the default installation of Fedora, you may run into this issue. If you did not import the GPG key for a particular repository after you installed it, fedup will fail because it does not have the necessary keys imported.
A quick and easy way to fix this is to just reinstall the repository package. You can use the command
su -c 'yum reinstall packagename' to reinstall the package. When it prompts you to import the key, press y, and afterwards, try running the fedup tool again.
Firewall configuration overwritten on upgrade to Server or Workstation
If you pass
--product server or
--product workstation to
fedup when upgrading, the
package will be installed. These contain the default firewall configurations for those Flavors. Unfortunately, these default configurations will replace - rather than merging with - your existing configuration, including any changes you have made to the defaults.
The Cloud flavor and "nonproduct" use the
package, which specifies no actual ports or services, and so existing configurations aren't replaced when fedup is run with
--product nonproduct or
If you do want your upgraded system to be Fedora Workstation or Fedora Server, but you wish to maintain your firewall configuration modifications, you should note your existing configuration before the upgrade, and re-apply it with
firewall-config after the upgrade process. We apologize for the inconvenience, and if possible we will release an update to resolve this issue for future upgrades.
FreeIPA configuration upgrade required after fedup
If you upgrade a system running as a FreeIPA server to Fedora 21 using fedup, FreeIPA will not be able to entirely complete its configuration updates during the upgrade process. As explained in the FreeIPA release notes, you must run
su -c 'ipa-ldap-updater --upgrade' followed by
su -c 'ipa-upgradeconfig' after booting the upgraded system. Until you complete the update in this way, various elements of FreeIPA will not work correctly (including the web interface), and there will be error messages in the system logs.
Fedup copies the whole journal during upgrade
After the upgrade is finished, fedup appends a copy of the whole journal to /sysroot/var/log/upgrade.log, instead of limiting that to just the current boot during which upgrade was run. This step will be slow on systems which have a large number of existing journal files. If you have a rotational drive, are low on disk space, and don't care about old logs, you might want to consider removing old journal files with
su -c bash -c 'rm -v /var/log/journal/*/*@*.journal*'
GNOME Initial Setup crashes if no keyboard is selected
On first use of a Fedora 21 Workstation system (or other Fedora 21 installation with the GNOME desktop), an 'initial setup' process is run (the same as described in the previous issue). One of the early stages asks you to pick a keyboard layout. Depending on your earlier choice of language and location, it is possible that no layout will be pre-selected on the initial list of layout choices. If no layout is selected, and you do not select one but simply click Next, the initial setup tool will crash.
The workaround for this issue is to make sure you select a keyboard layout. If none of the layouts is the one you want, clicking the '...' choice at the bottom of the list will cause the full list of layouts to be provided.
Default KDE session after installation or on re-login to live session is failsafe
Due to an issue with how the sddm session manager orders desktop sessions, the failsafe session - "KDE Plasma (failsafe)" - will be the default session for interactive logins. This means that after installing Fedora 21 KDE but before installing the update, or if you log out from a live session and log in again through the login screen, the default session choice will be the failsafe session. However, the session used on initial boot of the live image is not affected.
To work around this issue, simply select the "KDE Plasma Workspace" session instead of "KDE Plasma (failsafe)" when you log in to KDE. You should only need to make this choice once for each user account - when you select a session, that session is stored as that user's default choice, so subsequent logins with that user will use the same session until you choose another.
Crash when adding new widget to panel via drag-and-drop
You may encounter a crash in the Plasma Desktop Shell while adding a widget to the panel. If you open the 'Add widgets...' panel pop-up and try to drag a new widget from it to the panel, if you cross the button for a running application in the task manager widget while dragging, the crash will be triggered. The shell will respawn automatically and the session will continue to work correctly.
To work around this issue simply be careful not to cross the task manager area of the panel when dragging. The Fedora KDE team will work to come up with a fix for this issue as soon as possible.
Graphical package manager missing some PackageKit features
In Fedora 21 Beta,
(KDE's default graphical package manager and update tool) is missing some features, due to the replacement of the backend it previously used. Notably the ability to search within package groups is missing.
IP address discovery via DHCP does not work
Several users have reported that Fedora 21 does not successfully discover an IP address via DHCP on their systems. An investigation of this issue has indicated that badly-behaving routers are the source of the problem, but some commonly-used router hardware and software appear to have the problematic behaviour by default. This at least appears to affect systems connected to Cisco RV320 routers, and possibly Windows Server systems acting as network routers. The issue may be more likely to occur in cases where the router is configured to assign specific IP addresses to specific systems based on their MAC addresses.
To work around the issue, create a file
/etc/dhcp/dhclient.conf with the contents:
send dhcp-client-identifier = hardware;
or add that line to the file, if it already exists, and then try establishing the network connection again.
Both upstream and downstream engineers agree that dhclient's behavior here is correct according to the relevant RFC 4361, and that the only way to 'fix this bug' would be to break RFC compliance, and therefore they do not believe it is the right thing to do. If one end of a connection is spec compliant and the other is not, and the compliant end cannot handle the other end's non-compliance without becoming non-compliant itself, it is the non-compliant end that should change its behaviour. Fedora will attempt to notify router hardware/software vendors whose products suffer from this issue on behalf of our users.
Boot hangs when using NVIDIA discrete graphics on some Thinkpad models (W530)
This issue has been present since at least Fedora 19.
Multiple testers have reported that various Thinkpad models - including at least the W530, and likely the W520 and T420 - that have hybrid Intel/NVIDIA graphics will fail to boot Fedora 19, 20, or 21 when using the discrete NVIDIA graphics adapter. Using the onboard Intel adapter, Fedora will boot successfully.
Further testing indicates that this bug is an interaction between several features of these systems and of Fedora: the VT-d advanced virtualization feature, the X2APIC level APIC, and the NVIDIA adapter. If all three of these things are used together, boot fails. If any one is removed from the equation, boot succeeds.
So, if you are affected by this bug, you can choose to boot with any two of those things, but not all three together. You can disable the VT-d feature and select which graphics adapter to use through the system firmware. You can disable X2APIC functionality by passing the kernel parameter nox2apic. In this way, you should be able to determine which of the features you want to use.
The kernel developers plan to address this issue in a future kernel update by blacklisting X2APIC functionality on affected systems, when the NVIDIA adapter is in use.
Fedora Server issues
Rolekit fails to deploy a Domain Controller on a VM, returning error 256
Creation of a Domain Controller role requires the system to have a sufficient amount of entropy available to securely create the keys for the included certificate authority and Kerberos key distribution center. It is very common when deploying on a virtual machine that has just been created that there will not be sufficient entropy available, which will result in the Domain Controller deployment timing out waiting on
/dev/random and then failing with error code 256.
On VM hosts that support it (such as KVM on Fedora 20 and 21), it is recommended to create the VM using the virt-RNG device (which the Fedora Server 21 guest will automatically detect). This will allow it to collect entropy from the host machine and should reduce the likelihood of encountering this issue. As a workaround (if you do not have a host capable of providing entropy), you can also run
su -c '/usr/sbin/rngd -r /dev/urandom' to make the system use the less-secure /dev/urandom entropy device.
FreeIPA startup fails due to timing issues
This bug appears to occur only occasionally. Sometimes, startup of a FreeIPA server -
ipa.service - may fail, apparently due to some kind of race / timing issue between it,
dirsrv.target. It does appear to happen only rarely, and when it happens, just starting
ipa.service again should succeed.
Installation of 'environment groups' fails due to conflicts between fedora-release packages
Due to some limitations in how Fedora's package group mechanism works and some changes made to support the introduction of "Flavors" in Fedora 21, you may often encounter conflicts when trying to install the 'environment groups' seen in
yum grouplist after installing Fedora 21. If you install a Fedora Flavor - Workstation, Cloud, or Server - it is likely that attempting to install any other 'environment group' will fail. If you use a non-Flavor install - for instance, install from a desktop live image - it is likely that you will be able to successfully install other non-Flavor environment groups, but not the environment groups associated with each Flavor.
The most common case in which you're likely to encounter this is trying to add extra desktops to a Workstation or other desktop installation. If you install Workstation and then want to add any other desktop, or install another desktop and then want to add GNOME and decide to try and use the 'Workstation' group, you will likely run into this problem.
Fortunately there is a fairly simple workaround for this problem: use the command
yum groupinstall (group) --exclude fedora-release\*, e.g.
yum groupinstall kde-desktop-environment --exclude fedora-release\*. Note that you must use exactly
yum group install will not work.
It may not be possible to resolve this fully for Fedora 21. The bug report contains the detailed explanation of the problem, and solutions for it will likely be discussed there, if you wish to keep up to date.
Eclipse crashes when the proprietary Bluejeans browser plug-in is installed
This issue occurs only when the Bluejeans proprietary browser plug-in is installed.
Eclipse may crash when using hover-help, or when a Javadoc pop-up is about to be shown, or when using Eclipse's built-in web-browser view. This is due to the Bluejean plug-in crashing when any part of Eclipse uses the GTK Webkit widget.
The recommended workaround is to make Eclipse use the experimental Webkit2 support, which runs browser plug-ins out-of-process so that a crash inside Bluejeans will not cause Eclipse to exit. To enable this workaround, you must edit your
/etc/eclipse.ini file and change the --launcher.GTK_version option from 2 to 3 and then launch Eclipse with the following command:
Rendering problems of Assamese and Bengali language content
A rendering issue was found in Lohit Assamese and Bengali last upstream release 2.91.0. Due to this issue conjucts break if followed by any Bengali matra. Unfortunately this got detected during the final phase of Fedora 21 release, and had to be fixed with an update.
Anyone creating or viewing Assamese or Bengali language content in Fedora would have encountered this issue.
Offline update does not work (and other issues in PackageKit-based software managers)
Version 0.1.7 of the
library, used by PackageKit, passed initial testing and was released as an update for Fedora 21. Unfortunately, it later transpired that it had several bugs which can cause multiple issues. In particular, it could often cause offline updates to fail. Offline updates are the standard update system for Fedora Workstation, where a notification of available updates appears and asks you to reboot the system to install them. After libhif 0.1.7 has been installed, you may find that any attempt to do an offline update results in failure (as reported by a notification).
Further testing identified some other issues which could cause other package management operations, like installing or removing packages, using PackageKit-based applications - e.g. GNOME Software, Apper, and
pkcon - to fail and/or crash.
We do apologize for inconvenience caused by this broken update.