Shang Wu, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com /daily-live/current/ .
If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p linux <replace-with-bug-number> If reproducible, could you also please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags: kernel-fixed-upstream kernel-fixed-upstream-VERSION-NUMBER where VERSION-NUMBER is the version number of the kernel you tested. For example: kernel-fixed-upstream-v3.13-rc6 This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag: needs-upstream-testing If the mainline kernel does not fix this bug, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-VERSION-NUMBER As well, please remove the tag: needs-upstream-testing Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Description changed: When Ubuntu 12.04 starts up from CD, before enter the purple screen on the left hand top corner, there is a line where it says "Error: Prefix - not found" + not found". However, the issue does not cause any installation issue on + _my experience_. I was able to install Ubuntu successfully after seen + the error. - The similar issue has been seen on the following platform[1]: - ASUS N53SV - Asus E45M1-M Pro - Asus u36sd-a1 - - However, the issue does not cause any installation issue on _my - experience_. I was able to install Ubuntu successfully after seen the - error. - - [1] Ubuntu 12.04 Boot Error Prefix Not Set Then the Screen Displays Gargbage + Ubuntu 12.04 Boot Error Prefix Not Set Then the Screen Displays Gargbage http://ubuntuforums.org/showthread.php?t=1945850 ** Tags added: needs-kernel-logs needs-upstream-testing ** Changed in: linux (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1036935 Title: [UEFI] Error: Prefix not found Status in “linux” package in Ubuntu: Incomplete Bug description: When Ubuntu 12.04 starts up from CD, before enter the purple screen on the left hand top corner, there is a line where it says "Error: Prefix not found". However, the issue does not cause any installation issue on _my experience_. I was able to install Ubuntu successfully after seen the error. Ubuntu 12.04 Boot Error Prefix Not Set Then the Screen Displays Gargbage http://ubuntuforums.org/showthread.php?t=1945850 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1036935/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp