Cannot enter Root User / OS X Lion 10.7 / MacBook Pro (2011)

Hi all,
Pulling my hair out here; if any one can help I'll buy them a Corona or two.
Trying to enter Root User (in order to change the short username and home folder). Here's how it goes:
- New MacBook Pro (2011) / Lion installed
- Brother decided to play with it before I got home, set up a username etc
- I connected my iMac and MBP via an ethernet cable and Account Migrated all my stuff over to the MBP
- I deleted the account my brother setup for me
- Realised the 'Home' folder and short username was still that of my iMac (Joss iMac etc). Wanting to be factually correct looked into changing this via Root User
- Turned on Root User via Apple recommended way (Directory Utilities)
- Enter password
- Logged off as 'Joss iMac'
- Tried to logon as 'root', fails every time. All I get is the shake of the password box like the password is wrong.
I've tried pretty much all of the obvious sugeestions (i.e. renaming password, turning RU off and on again, reboot etc).
If any one can help, like I said, Corona's all round.
Thanks again,
JT

go to Systemsettings, Users & Groups and change "Show list of Users" to "Name and Password Box".
Root is not shown by default.
And if else fails you can boot into single user mode // do it via Unix terminal on the command line.

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Interval Since Last Panic Report: 1690 sec
Panics Since Last Report:          1
Anonymous UUID:                    67D1DCE1-6759-7BF0-6682-40BCBB09D01B
Thu Sep 20 07:24:10 2012
panic(cpu 2 caller 0xffffff80206b7bd5): Kernel trap at 0xffffff8020687d02, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0x00007ccd02000009, CR3: 0x00000000228a6000, CR4: 0x00000000000606e0
RAX: 0x00007ccd02000001, RBX: 0x000000000000003e, RCX: 0xffffff8020cbd000, RDX: 0x000000000000003e
RSP: 0xffffff8110da3720, RBP: 0xffffff8110da3740, RSI: 0xffffff8031ef80c8, RDI: 0xffffff8020cbd000
R8: 0xffffff8031ef7750, R9: 0xffffff8031ef0438, R10: 0xffffff8020cbcc20, R11: 0xffffff814c6e0000
R12: 0xffffff8033b0ec00, R13: 0xffffff8033b0ecb0, R14: 0x00000000000000c1, R15: 0xffffff8031ef0438
RFL: 0x0000000000010296, RIP: 0xffffff8020687d02, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x00007ccd02000009, Error code: 0x0000000000000002, Fault CPU: 0x2
Backtrace (CPU 2), Frame : Return Address
0xffffff8110da33c0 : 0xffffff802061d626
0xffffff8110da3430 : 0xffffff80206b7bd5
0xffffff8110da3600 : 0xffffff80206ce4ed
0xffffff8110da3620 : 0xffffff8020687d02
0xffffff8110da3740 : 0xffffff802065f445
0xffffff8110da38a0 : 0xffffff8020681b58
0xffffff8110da3bf0 : 0xffffff802065e1b4
0xffffff8110da3c50 : 0xffffff8020a52e4f
0xffffff8110da3d40 : 0xffffff8020a53052
0xffffff8110da3d70 : 0xffffff7fa1e35434
0xffffff8110da3de0 : 0xffffff7fa1e2412f
0xffffff8110da3e10 : 0xffffff7fa1e33afe
0xffffff8110da3e60 : 0xffffff8020a3181b
0xffffff8110da3ea0 : 0xffffff8020a3133e
0xffffff8110da3f30 : 0xffffff8020a2d2d0
0xffffff8110da3f70 : 0xffffff8020a31e99
0xffffff8110da3fb0 : 0xffffff80206b26b7
      Kernel Extensions in backtrace:
         com.apple.driver.AppleIntelHD3000Graphics(8.0)[EAD976F9-7469-3F17-AB8E-6A039213 8DCB]@0xffffff7fa1e06000->0xffffff7fa1e67fff
            dependency: com.apple.iokit.IOPCIFamily(2.7.1)[9901C237-547C-3B52-99DE-C4870A19E2B5]@0xffff ff7fa0caf000
            dependency: com.apple.iokit.IONDRVSupport(2.3.5)[86DDB71C-A73A-3EBE-AC44-0BC9A38B9A44]@0xff ffff7fa11fc000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.5)[803496D0-ADAD-3ADB-B071-8A0A197DA53D]@0 xffffff7fa11b9000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
12C54
Kernel version:
Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64
Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333
Kernel slide:     0x0000000020400000
Kernel text base: 0xffffff8020600000
System model name: MacBookPro8,1 (Mac-94245B3640C91C81)
System uptime in nanoseconds: 22884276012
last loaded kext at 22356664762: com.apple.driver.AppleMikeyHIDDriver          122 (addr 0xffffff7fa1d76000, size 20480)
loaded kexts:
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AppleHDAHardwareConfigDriver          2.3.1f2
com.apple.driver.AppleHDA          2.3.1f2
com.apple.driver.AppleUpstreamUserClient          3.5.10
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.ApplePolicyControl          3.2.11
com.apple.driver.AppleIntelHD3000Graphics          8.0.0
com.apple.driver.AppleSMCPDRC          1.0.0
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.AppleLPC          1.6.0
com.apple.driver.AppleBacklight          170.2.3
com.apple.driver.AppleMCCSControl          1.0.33
com.apple.iokit.IOBluetoothUSBDFU          4.0.9f33
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.0.9f33
com.apple.driver.AppleMikeyDriver          2.3.1f2
com.apple.driver.SMCMotionSensor          3.0.2d6
com.apple.driver.AppleSMCLMU          2.0.2d0
com.apple.driver.AppleIntelSNBGraphicsFB          8.0.0
com.apple.driver.AppleMuxControl          3.2.11
com.apple.driver.AppleUSBTCButtons          235.4
com.apple.driver.AppleUSBTCKeyEventDriver          235.4
com.apple.driver.AppleUSBTCKeyboard          235.4
com.apple.driver.AppleIRController          320.15
com.apple.driver.AppleFileSystemDriver          3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          34
com.apple.iokit.SCSITaskUserClient          3.5.1
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.2.2
com.apple.driver.AppleSDXC          1.2.2
com.apple.driver.AppleUSBHub          5.2.5
com.apple.iokit.AppleBCM5701Ethernet          3.2.5b3
com.apple.driver.AppleAHCIPort          2.4.1
com.apple.driver.AirPort.Brcm4331          602.15.22
com.apple.driver.AppleFWOHCI          4.9.6
com.apple.driver.AppleUSBEHCI          5.4.0
com.apple.driver.AppleUSBUHCI          5.2.5
com.apple.driver.AppleEFINVRAM          1.6.1
com.apple.driver.AppleSmartBatteryManager          161.0.0
com.apple.driver.AppleACPIButtons          1.6
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleHPET          1.7
com.apple.driver.AppleSMBIOS          1.9
com.apple.driver.AppleACPIEC          1.6
com.apple.driver.AppleAPIC          1.6
com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0
com.apple.nke.applicationfirewall          4.0.39
com.apple.security.quarantine          2
com.apple.driver.AppleIntelCPUPowerManagement          196.0.0
com.apple.driver.DspFuncLib          2.3.1f2
com.apple.iokit.IOAudioFamily          1.8.9fc10
com.apple.kext.OSvKernDSPLib          1.6
com.apple.iokit.IOSurface          86.0.3
com.apple.iokit.IOBluetoothFamily          4.0.9f33
com.apple.driver.AppleThunderboltEDMSink          1.1.8
com.apple.driver.AppleThunderboltEDMSource          1.1.8
com.apple.driver.AppleThunderboltDPOutAdapter          1.8.5
com.apple.driver.AppleHDAController          2.3.1f2
com.apple.iokit.IOHDAFamily          2.3.1f2
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.driver.IOPlatformPluginFamily          5.2.0d16
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.0.9f33
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.iokit.IOFireWireIP          2.2.5
com.apple.driver.AppleSMC          3.1.4d2
com.apple.driver.AppleGraphicsControl          3.2.11
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.iokit.IONDRVSupport          2.3.5
com.apple.iokit.IOGraphicsFamily          2.3.5
com.apple.driver.AppleThunderboltDPInAdapter          1.8.5
com.apple.driver.AppleThunderboltDPAdapterFamily          1.8.5
com.apple.driver.AppleThunderboltPCIDownAdapter          1.2.5
com.apple.driver.AppleUSBMultitouch          235.7
com.apple.iokit.IOUSBHIDDriver          5.2.5
com.apple.driver.AppleUSBMergeNub          5.2.5
com.apple.driver.AppleUSBComposite          5.2.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.1
com.apple.iokit.IOBDStorageFamily          1.7
com.apple.iokit.IODVDStorageFamily          1.7.1
com.apple.iokit.IOCDStorageFamily          1.7.1
com.apple.iokit.IOAHCISerialATAPI          2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.1
com.apple.driver.AppleThunderboltNHI          1.6.0
com.apple.iokit.IOThunderboltFamily          2.1.1
com.apple.iokit.IOEthernetAVBController          1.0.2b1
com.apple.iokit.IOUSBUserClient          5.2.5
com.apple.iokit.IOAHCIFamily          2.2.1
com.apple.iokit.IO80211Family          500.15
com.apple.iokit.IONetworkingFamily          3.0
com.apple.iokit.IOFireWireFamily          4.5.5
com.apple.iokit.IOUSBFamily          5.4.0
com.apple.driver.AppleEFIRuntime          1.6.1
com.apple.iokit.IOHIDFamily          1.8.0
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          220
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.DiskImages          344
com.apple.iokit.IOStorageFamily          1.8
com.apple.driver.AppleKeyStore          28.21
com.apple.driver.AppleACPIPlatform          1.6
com.apple.iokit.IOPCIFamily          2.7.1
com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.corecrypto          1.0
Model: MacBookPro8,1, BootROM MBP81.0047.B27, 2 processors, Intel Core i5, 2.4 GHz, 8 GB, SMC 1.68f98
Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 512 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x0198, 0x393955353432382D3034302E413031472020
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x0198, 0x393955353432382D3034302E413031472020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.81.22)
Bluetooth: Version 4.0.9f33 10885, 2 service, 11 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: Hitachi HTS545050B9A302, 500,11 GB
Serial ATA Device: MATSHITADVD-R   UJ-8A8
USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfd100000 / 2
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd110000 / 3
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8509, 0xfa200000 / 3
USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfa100000 / 2
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 5
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821a, 0xfa113000 / 7
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0252, 0xfa120000 / 4
Is there a hardware problem?
thank you

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Open Disk Utility from the Utilities folder.
Select the destination volume from the left side list.
Click on the Restore tab in the DU main window.
Check the box labeled Erase destination.
Select the destination volume from the left side list and drag it to the Destination entry field.
Select the source volume from the left side list and drag it to the Source entry field.
Double-check you got it right, then click on the Restore button.
Destination means the external backup drive. Source means the internal startup drive.
C. Important: Please read before installing:
If you have a FireWire hard drive connected, disconnect it before installing the update unless you will boot from this drive and install the update on it. Reconnect it and turn it back on after installation is complete and you've restarted.
You may experience unexpected results if you have installed third-party system software modifications, or if you have modified the operating system through other means. (This does not apply to normal application software installation.)
The installation process should not be interrupted. If a power outage or other interruption occurs during installation, use the standalone installer (see below) from Apple Downloads to update. While the installation is in progress do not use the computer.
D. To upgrade:
Purchase the Snow Leopard Retail DVD.
Boot From The OS X Installer Disc:
Insert OS X Installer Disc into the optical drive.
Restart the computer.
Immediately after the chime press and hold down the "C" key.
Release the key when the spinning gear below the dark gray Apple logo appears.
Wait for installer to finish loading.
E. If updating:
Download and install update(s)
Use Software Update, or
Download standalone updater(s).

Why does mountain lion make my macbook pro stall?

Hi Is anyone else having a problem with Mountain Lion? My Macbook Pro was very stable woth OSX 10.6. I updated recently and now the round egg timer equivalent appears regualrly, requiring me to reboot.
I thought that I had left all this behind when I moved from PC?
Any ideas for a cure anyone?
many thanks

Launch the Activity Monitor utility, set the list at the top to "All Processes", then click on the "% CPU" heading until the top CPU users are at the top of the list. Continue to work until things slow down, then see what's consuming CPU time.

Reinstall Mountain Lion on 13" macbook pro retina

hi! i am trying to reinstall mountain lion on my new 13" macbook pro retina, however, i cannot proceed and i encounter the message "We could not complete your purchase. OS X Mountain Lion is not compatible with this computer." please help!

I've called Apple Care and they learned me to the following in order to complete a clean install from Mountain Lion on a MacBook Pro Retina (otherwise it won't work): http://support.apple.com/kb/PH11273
But, like Clinton said, shouldn't your rMBP come with Moutain Lion on it? And if so, why can't you upgrade to 10.8.2 because I could (with software update) - but my problem was to clean reinstall ML on it from the App Store (that you stil can't do with a rMBP btw).
And a small question off-topic: How long is your (average) shutdown time on your rMBP 13"?

Cannot enter Root User / OS X Lion 10.7 / MacBook Pro (2011)

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