Kevin Donnelly, thank you for your comments. Did this issue not occur in a release prior to Quantal? As well, could you please install Ubuntu Quantal, fully update, and comment if the WORKAROUND is still required?
Thank you for your understanding. ** Description changed: The 12.10 alpha 3 amd+mac iso from - http://cdimage.ubuntu.com/releases/12.10/alpha-3/ will only boot after - setting acpi=off. + http://cdimage.ubuntu.com/releases/12.10/alpha-3/ will not boot. + + WORKAROUND: Use kernel parameter: + acpi=off At the man+keyboard screen, press any key and accept English, then press F6, then move to acpi=off and press Space to select it, and Esc. Then press Return to allow the LiveCD to boot, which takes about 3 minutes. This is on an iMac 5,1, Core 2 Duo, 3Gb RAM, ATI Radeon. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-6-generic 3.5.0-6.6 ProcVersionSignature: Ubuntu 3.5.0-6.6-generic 3.5.0 Uname: Linux 3.5.0-6-generic x86_64 AcpiTables: - + ApportVersion: 2.4-0ubuntu5 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: ubuntu 3248 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC0: ubuntu 3248 F.... pulseaudio CasperVersion: 1.320 Date: Wed Aug 8 11:08:52 2012 IwConfig: - eth0 no wireless extensions. - - lo no wireless extensions. + eth0 no wireless extensions. + + lo no wireless extensions. LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64+mac (20120724.2) MachineType: Apple Computer, Inc. iMac5,1 ProcEnviron: - TERM=xterm - PATH=(custom, no user) - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash -- acpi=off RelatedPackageVersions: - linux-restricted-modules-3.5.0-6-generic N/A - linux-backports-modules-3.5.0-6-generic N/A - linux-firmware 1.85 + linux-restricted-modules-3.5.0-6-generic N/A + linux-backports-modules-3.5.0-6-generic N/A + linux-firmware 1.85 RfKill: - 0: hci0: Bluetooth - Soft blocked: no - Hard blocked: no + 0: hci0: Bluetooth + Soft blocked: no + Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/27/07 dmi.bios.vendor: Apple Computer, Inc. dmi.bios.version: IM51.88Z.0090.B09.0706270921 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F4228EC8 dmi.board.vendor: Apple Computer, Inc. dmi.board.version: DVT dmi.chassis.asset.tag: Asset Tag dmi.chassis.type: 13 dmi.chassis.vendor: Apple Computer, Inc. dmi.chassis.version: Mac-F4228EC8 dmi.modalias: dmi:bvnAppleComputer,Inc.:bvrIM51.88Z.0090.B09.0706270921:bd06/27/07:svnAppleComputer,Inc.:pniMac5,1:pvr1.0:rvnAppleComputer,Inc.:rnMac-F4228EC8:rvrDVT:cvnAppleComputer,Inc.:ct13:cvrMac-F4228EC8: dmi.product.name: iMac5,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Computer, Inc. ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034338 Title: Quantal-alpha boot on iMac 5,1 requires acpi=off To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034338/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
