This is recorded in my system journal (booting the iso install image from a USB flash drive): Aug 26 16:11:38 localhost kernel: ACPI Warning: \_SB_.PCI0.P0P1.PEGP._DSM: Argument #4 type mismatch - Found [Integer], ACPI requires [Package] (20130517/nsarguments-95) Aug 26 16:11:38 localhost kernel: ACPI Warning: \_SB_.PCI0.P0P1.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20130517/nsarguments-95) Full journal file is available here: http://ryniker.ods.org/errors/F20/lenovo/ There was a kernel problem logged earlier in the journal, but that is not obviously related (I'll file a bug for it): Aug 26 16:11:36 localhost kernel: WARNING: CPU: 0 PID: 54 at lib/dma-debug.c:950 check_for_stack+0xa0/0x100() Aug 26 16:11:36 localhost kernel: ehci-pci 0000:00:1a.0: DMA-API: device driver maps memory fromstack [addr=ffff880427629376] Aug 26 16:11:36 localhost kernel: Modules linked in: floppy(+) scsi_dh_rdac scsi_dh_hp_sw scsi_dh_emc scsi_dh_alua iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi squashfs cramfs edd dm_multipath Aug 26 16:11:36 localhost kernel: CPU: 0 PID: 54 Comm: khubd Not tainted 3.11.0-0.rc6.git4.1.fc20.x86_64 #1 Aug 26 16:11:36 localhost kernel: Hardware name: LENOVO 7745/7745, BIOS DUKT31AUS 05/23/2011 There is another kernel problem logged later: Aug 26 16:11:41 localhost kernel: WARNING: CPU: 0 PID: 54 at fs/sysfs/dir.c:530 sysfs_add_one+0xa5/0xd0() Aug 26 16:11:41 localhost kernel: sysfs: cannot create duplicate filename '/class/power_supply/hid--battery' Aug 26 16:11:41 localhost kernel: Modules linked in: nouveau mxm_wmi wmi video i2c_algo_bit drm_kms_helper ttm e1000e drm ptp i2c_core pps_core usb_storage sunrpc sha256_ssse3 dm_crypt dm_round_robin linear raid10 raid456 async_raid6_recov async_memcpy async_pq raid6_pq async_xor xor async_tx raid1 raid0 iscsi_ibft iscsi_boot_sysfs scsi_dh_rdac scsi_dh_hp_sw scsi_dh_emc scsi_dh_alua iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi squashfs cramfs edd dm_multipath Aug 26 16:11:41 localhost kernel: CPU: 0 PID: 54 Comm: khubd Tainted: G W 3.11.0-0.rc6.git4.1.fc20.x86_64 #1 Aug 26 16:11:41 localhost kernel: Hardware name: LENOVO 7745/7745, BIOS DUKT31AUS 05/23/2011 What does "Tainted" mean two lines above? That sounds a bit strange for a regular Fedora image. Finally, the wheels fall off a few seconds later: Aug 26 16:11:46 localhost kernel: general protection fault: 0000 [#1] SMP Aug 26 16:11:46 localhost kernel: Modules linked in: crc32_pclmul crc32c_intel ghash_clmulni_intel nouveau mxm_wmi wmi video i2c_algo_bit drm_kms_helper ttm e1000e drm ptp i2c_core pps_core usb_storage sunrpc sha256_ssse3 dm_crypt dm_round_robin linear raid10 raid456 async_raid6_recov async_memcpy async_pq raid6_pq async_xor xor async_tx raid1 raid0 iscsi_ibft iscsi_boot_sysfs scsi_dh_rdac scsi_dh_hp_sw scsi_dh_emc scsi_dh_alua iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi squashfs cramfs edd dm_multipath Aug 26 16:11:46 localhost kernel: CPU: 1 PID: 54 Comm: khubd Tainted: G W 3.11.0-0.rc6.git4.1.fc20.x86_64 #1 Aug 26 16:11:46 localhost kernel: Hardware name: LENOVO 7745/7745, BIOS DUKT31AUS 05/23/2011 -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test