Sergio, could I know what's your host system? I attempted to reproduce the issue with 0326 image, but the usbstick can boot into syslinux successfully. Here is my steps:
1. download vivid amd64 0326 daily image 2. install the image 3. boot into the installed system 4. burn ubuntu trusty/vivid ISO image with usb-creator-gtk to an usbstick 5. boot with the usbstick with Legacy BIOS To make things clear for anyone interested in this bug, let me say something about the cause and what has been fixed and what not. Just skip below lines if you already know :) The cause. In the bug comments we know the root cause is that usb- creator a) copy syslinux .c32 modules from the ISO image to usbstick, and b) install mbr.bin from host system to usbstick. If the host system has different version than the ISO image, then the .c32 modules will be incompatible with the mbr.bin, for example burn an vivid ISO on an trusty host system. The patch. So one possible fix for the issue, is to install mbr.bin also from the ISO image to keep it compatible with the .c32 modules. This is what the applied patch does. However the limitation for this patch is obvious, if there is no mbr.bin stored in the ISO then we can do nothing. This will happen if a) no suqahsfs image in the ISO such as the debian netinst image or b) syslinux not pre-installed in the squashfs such as the xubuntu image. At the moment the patch is only applied in vivid, so we have to use latest vivid as host system to get the fix. For other host system such as trusty we have to wait for the SRU. -- You received this bug notification because you are a member of Ubuntu Kylin Members, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/1325801 Title: failed to boot from USB disk with error: gfxboot.c32: not a COM32R Image boot: Status in Ubuntu CD image build software: In Progress Status in Ubuntu Kylin: Triaged Status in usb-creator package in Ubuntu: Fix Released Status in usb-creator source package in Lucid: Triaged Status in usb-creator source package in Precise: Triaged Status in usb-creator source package in Trusty: Triaged Status in usb-creator source package in Utopic: Fix Committed Bug description: [Impact] It is common to use usb-creator to write new USB devices with a version of Ubuntu which will then be used to upgrade or proceed with a new installation. In some cases, when using a specific match of versions of Ubuntu with an incompatible syslinux, the resulting USB device will show errors and not display the splash menu to use to select between Live and Install mode, or enabling extra options. This patch fixes this incompatibility by always using the syslinux version provided on the ISO image being used to write the USB device; which would always be compatible with the system to install if it's available. [Test Case] 1- Use usb-creator to write a new USB device with a version of Ubuntu with a different syslinux: Precise: use 13.10 or later. Trusty: use 13.04 or earlier. Utopic: use 13.04 or earlier. 2- Boot on the USB, verify that the splash screen is shown and that you can get into a live session. [Regression Potential] This may yield cases in which the written USB device may be unbootable, due to having written syslinux data to the boot sector incompatible with the version of Ubuntu to be installed. USB devices may also be bootable but not show the splash screen and menu. -- 系 统：UK 14.10 6-2 dailybuild 32 位 机器型号：ｄｅｌｌ Ｉｎｓｐｉｒｏｎ－５６０ｓ 现 象：用Ｕ盘制作启动盘，不能启动，提示信息：ｇfxboot.c32: not a COM32R Image boot: 见附件图片 this bug is similar with Bug #645818, but we cannot confirm whether they are the same. WORKAROUND: One may enter the live environment by typing the following and hitting enter: live To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-cdimage/+bug/1325801/+subscriptions -- Mailing list: https://launchpad.net/~ubuntukylin-members Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntukylin-members More help : https://help.launchpad.net/ListHelp
