System Only SSD

Getting OCZ SSD to install on MacPro 08 in second optical bay. Must have User files on separate drive due to SSD will barely hold system. I figured I'd have to clone my primary boot drive to spare partition, boot from clone, setup it up with User in other location from SysPrefs > Users > control click current user > advanced options, restart then dump items form User in order to have the drive sized for the SSD. Once the intermmediate tranfer drive was set up, clone it to the SSD and use as boot.
I tested clone before actuall data transfers. Problem is after switching User file location from the booted clone, restarting, but re-booting looks like clean install. No preferences showed up, missing all but stock apps in dock, desktop image back to clean install, printer needing registration. . . Tried advanced options again to locate User on same original boot drive, restart, same thing. I did not remove User files yet from the cloned drive which I was booting. Just switched location. Am I missing something?

Read Japamac's Blog:
Make Space for Performance: Moving the Home Folder
and this one as well:
http://chris.pirillo.com/how-to-move-the-home-folder-in-os-x-and-why/

Similar Messages

Carry out repairs in non-original system only if they are urgent

Hi Experts,
I am getting this message "Carry out repairs in non-original system only if they are urgent" while i try to edit a z function module which i have created in the development system. Because of this I can't change the code, I need to use the insert, delete....buttons.
Please help , itz urgent.
Thanks & Regards,
Soumya.

Hello Soumya
Obviously the Z-function module was originally created on another development system. Therefore you get this message.
If you have transferred your function group to another development system then simply change the source system of the function group. You can do this using transaction SE03 (function "Change Object Entries...") or you can use function module TRINT_TADIR_MODIFY.
Regards,
Uwe

Error "Package in non-original system only modifiabl with Organizer Tools"

Assign Customer Objcet PROG to Package "Z001"(created by myself),it pop-up error "Package in non-original system only modifiabl with Organizer Tools"
how can i deal with this error?
could any warm-hearted fellow give me some tips ?
tks a lot !

Hi sophie,
i think you transported this package from another system to a new system and you are trying to modify the package.
just have a look at below link hop it will help ,otherwise let us know
http://help.sap.com/saphelp_nw04/helpdata/en/57/38de9b4eb711d182bf0000e829fbfe/content.htm
cheers
shibu

Vendor's/manufacturer's QM system only valid to 06.05.2010

Hi Team,
Please help how to correct following error.
Vendor's/manufacturer's QM system only valid to 06.05.2010
Message no. QB301
Diagnosis
The quality assurance system of the chosen vendor/manufacturer is no longer valid. You cannot, therefore, order the material concerned from this vendor/manufacturer.
Thanks

Hi
Check Quality Info record for the material-vendor-plant in tcode QI02. Check the date entered in the tab Insp control.
Either Existing QM system date is past or Vendor's QM system date is past.
If vendor's QM system is past, change the date in vendor master.
regards

Change the time zone in Java System only

Hi there,
Does anyone knows where to change the time zone in Java system only? I know in ABAP they have t-code: STZAC? where do I change in Java? Configtool or visual admin? what is the service name or parameter for this?
Thanks
Kumar

hi Kumar,
You can change the timezone of the JVMs using the -Duser.timezone
parameter, add -Duser.timezone=<timezone> to all dispatcher and
server processes in your systems, using the configtool
1) open config tool
2) select yes
3) select "cluster-data->instanceXXX->serverXXX/Dispatcher"
4) in "Java parameters" add new line "-Duser.timezone=<timezone>"
5) click "Apply changes"
6) restart your instance
Let me know how is the result
Regards

Msg in Dev Box - Carry out repairs in non-original system only if urgent

Hi, I noticed that I am getting the message "Carry out repairs in non-original system only if they are urgent" when I try to edit certain DTP's in my Development BW Envirionment. This is very unexpected and caught me by surprise.
1. Can anyone tell me what might be causing this?
2. Can anyone tell me what Table I might be able to peruse and determine what the source system is for this DTP?
Thanks for any help with this...

HI
You will get this warning for when modifying an object in ANY system, if that object was not created in that system, but transported from some other system. So, you will get this warning in your Quality/Test/Production systems for the objects which are transported from Development system.
Just ignore if it is in the DEV SYSTEM OR talk to the system administrator.
Hope u got it,
Thanx & Regards,
RavIChandra
Edited by: Ravichandra.bi on Dec 8, 2011 4:04 AM
Edited by: Ravichandra.bi on Dec 8, 2011 8:24 AM

System only detects 96mb after installing new 128mb stick of ram

Just purchased a new stick of unbranded 128mb DDR PC2100 memory from PC Club and after installing it, my system only detects 96mb. I tried it in both slots & get the same results. I've just recently put together an MSI KM2M Combo motherboard with the AMD Duron cpu (FSB 100) & the ram was my last step. Why doesn't it detect the full 128mb ? Thanks in advance for any suggestions !!
AMD Duron 100FSB
MSI KM2M Mobo (MS-6738)
400 watt ATX Duro pwr. supply

:D Yup, what Bas say was rite, you can try change the share Video memory to another amount....and then try to see does the amount is changing...if yes..then is the Video Share Memory who make the amount of RAM less......
If it does not....then try to check see your RAM has how many chip on it..... coz, as i know old Mainboard does not support 4 CHIP RAM..... Minimum must have 8 CHIP for support the old mainboard....
:D

Milestone billing, the system only allows pricing types D, G and K

Hi,
I would like to use pricing type as C Copy manual pricing elements and redetermine the others for Mile stone billing item catagory.(VTFA copy control setup)
While changing pricing type from G to C in copy control VTFA - ITEM LEVEL, i am getting this beow warning message.
Milestone billing, the system only allows pricing types D, G and K
Could you tell what is impact of this warning message?
Best Regards,
Chandramohan

Read OSS Note 102961 - New pricing type for milestone billing plans.
It looks it used to be error message, until version 4.5A.
This is just to make sure that the cost conditions are adjusted to the billing percentage rate. By keeping value K you can achieve this.
Regards,

Core2duo system only shows 1 cpu

This is probably a really easy fix, but i just noticed that my core2duo system only shows
1 cpu in /proc/cpuinfo.
is there something simple i missed in terms of enabling the second core? it worked in
ubuntu (i'm thinking i am running the wrong kernel?)
here is the result of:
[root@minitx etc]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz
stepping : 10
cpu MHz : 2200.066
cache size : 4096 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx lm constant_tsc up arch_perfmon pebs bts pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 4404.08
clflush size : 64
power management:
Thanks,
M

even more interesting...
i recall having to disable acpi in the bios to get arch to initially boot. I just double checked in the bios, mutlicore is activated and now i've reactivated acpi... I still only get 1 processor, but alot of new info is in dmesg.log
thoughts?
[root@minitx ~]# cat /var/log/dmesg.log
Linux version 2.6.26-ARCH (root@T-POWA-LX) (gcc version 4.3.1 20080724 (prerelease) (GCC) ) #1 SMP PREEMPT Tue Aug 26 21:15:43 UTC 2008
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000007f6e0000 (usable)
BIOS-e820: 000000007f6e0000 - 000000007f6e3000 (ACPI NVS)
BIOS-e820: 000000007f6e3000 - 000000007f6f0000 (ACPI data)
BIOS-e820: 000000007f6f0000 - 000000007f700000 (reserved)
BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
1142MB HIGHMEM available.
896MB LOWMEM available.
found SMP MP-table at [c00f3720] 000f3720
Entering add_active_range(0, 0, 521952) 0 entries of 256 used
Zone PFN ranges:
DMA 0 -> 4096
Normal 4096 -> 229376
HighMem 229376 -> 521952
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
0: 0 -> 521952
On node 0 totalpages: 521952
DMA zone: 32 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 4064 pages, LIFO batch:0
Normal zone: 1760 pages used for memmap
Normal zone: 223520 pages, LIFO batch:31
HighMem zone: 2286 pages used for memmap
HighMem zone: 290290 pages, LIFO batch:31
Movable zone: 0 pages used for memmap
DMI not present or invalid.
ACPI: RSDP 000F7AE0, 0014 (r0 IntelR)
ACPI: RSDT 7F6E3000, 0030 (r1 IntelR AWRDACPI 42302E31 AWRD 0)
ACPI: FACP 7F6E3080, 0074 (r1 IntelR AWRDACPI 42302E31 AWRD 0)
ACPI: DSDT 7F6E3100, 50C0 (r1 INTELR AWRDACPI 1000 MSFT 3000000)
ACPI: FACS 7F6E0000, 0040
ACPI: MCFG 7F6E8280, 003C (r1 IntelR AWRDACPI 42302E31 AWRD 0)
ACPI: APIC 7F6E81C0, 0084 (r1 IntelR AWRDACPI 42302E31 AWRD 0)
ACPI: PM-Timer IO Port: 0x408
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] disabled)
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] disabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] disabled)
ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
ACPI: IOAPIC (id[0x04] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 4, version 32, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Enabling APIC mode: Flat. Using 1 I/O APICs
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at 80000000 (gap: 7f700000:60900000)
PM: Registered nosave memory: 000000000009f000 - 00000000000a0000
PM: Registered nosave memory: 00000000000a0000 - 00000000000f0000
PM: Registered nosave memory: 00000000000f0000 - 0000000000100000
SMP: Allowing 4 CPUs, 3 hotplug CPUs
PERCPU: Allocating 39464 bytes of per cpu data
NR_CPUS: 16, nr_cpu_ids: 4
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 517874
Kernel command line: root=/dev/sda3 ro
mapped APIC to ffffb000 (fee00000)
mapped IOAPIC to ffffa000 (fec00000)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 16384 bytes)
Detected 2200.057 MHz processor.
Console: colour VGA+ 80x25
console [tty0] enabled
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 2063820k/2087808k available (2120k kernel code, 22688k reserved, 744k data, 264k init, 1170304k highmem)
virtual kernel memory layout:
fixmap : 0xffee4000 - 0xfffff000 (1132 kB)
pkmap : 0xff800000 - 0xffc00000 (4096 kB)
vmalloc : 0xf8800000 - 0xff7fe000 ( 111 MB)
lowmem : 0xc0000000 - 0xf8000000 ( 896 MB)
.init : 0xc03d3000 - 0xc0415000 ( 264 kB)
.data : 0xc031211e - 0xc03cc380 ( 744 kB)
.text : 0xc0100000 - 0xc031211e (2120 kB)
Checking if this processor honours the WP bit even in supervisor mode...Ok.
CPA: page pool initialized 1 of 1 pages preallocated
SLUB: Genslabs=12, HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
Calibrating delay using timer specific routine.. 4404.08 BogoMIPS (lpj=7337739)
Security Framework initialized
Capability LSM initialized
Mount-cache hash table entries: 512
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 4096K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
using mwait in idle threads.
Checking 'hlt' instruction... OK.
ACPI: Core revision 20080321
ACPI: Checking initramfs for custom DSDT
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
CPU0: Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz stepping 0a
Brought up 1 CPUs
Total of 1 processors activated (4404.08 BogoMIPS).

Is it possible to use only SSd's and no HHD's?

Hi. I was reading a little bit about SSD's. Some info said they are advancing quite well, and can outperform RAID arrays.
Is it possible to video edit with only SSD's? I'm talking about mid-level to completely advanced.
I understand the price point. I thinkg SSD's can be a problem by storing the files sequentially and this causes a bottleneck with accessing the video footage, right? HHD's allow the drive head to read anywhere when needed....
Has anyone tried it?

quoted from the article..
The SSDs are better in almost every benchmark with the exception of throughput, which typically scales nicely with the number of drives used. This is where the hard drives won through sheer force of numbers.
video needs a lot of space. SSD's are to me a carzy idea
if working with AVCHD/XD etc its pointless anyway. 2 sets raid o are all you need
for higher res it becomes even more so due to size restricions on the SSDs.
when i can buy a 500G SSD for $200 then maybe.
Scott
ADK

Dunning - System only reads/prints 1st 10 notices

Hi Forum,
No matter how many customers I try to dun, system only reads/prints 1st 10 notices.
Example:
I ran a proposal for date 9/17/2009 and ID TA01.
I ran for approx 30 customers.
All the customers show as being picked up in the log, but when I click on sample printout, only the 1st 10 notices are read/printed:
"The first 10 dunning notices for dunning run 09/17/2009 TA01 have been printed
10 dunning notices were read
10 dunning notices have been printed
End dunning printout 09/17/09 / TA01"
Notice how system says "The first 10...." even though I ran for at least 30 customers.
So in my log it shows at least 30 customers read, but when I do a sample printout, I receive the message above.
Please advise?

hi ,
check the log whether the for 30 customers the dunning has beentaken place or only for 10 customers .check the dunning history for individula customer .

Considerations before installing SSD for system only

I Have 3 2 Tb HDD in raid5 via mdadm working wonderfully, providing me of a 4 Tb /home partition.
I just purchased a 128 Gb SSD to use it just for arch installation (root) and I have a couple of questions:
First of all.... I will use syslinux as boot loader... is it better to use GPT over MBR?
Second.... I used to put /boot on a separate partition but, as I have been reading, the less you partition a SSD, the better... so, better just create a single 128 Gb ext4 partition and install all the system there?
I currently have 4 GB 800Mhz RAM, and the machine is used for dwnloading purposes and for browsing and HD movie playback..... I'm thinking about not using a swap partition anymore...
Any recommendations?
Thank you guys!
EDIT1: The RAID5 is using MBR... can I run into trouble if there are some other disks using GPT?
Last edited by Xi0N (2012-10-16 14:03:16)

hunterthomson wrote:Use GPT on SSD becuase GPT will always create aligned paritions.
As will plain fdisk these days. GPT is a better option anyways (unless you lack UEFI and need to boot Windows from the drive), but either major cli filesystem tool will align by default to 2048 sectors.
When I redid my system, I just made / and /boot on my 64 GB SSD (and in hindsight I could probably have gotten away without /boot but meh, ~habit~. A 100 MB /boot won't do much to the drive either way). I haven't gotten around to remaking my HDD yet beyond a 4 GB swap partition; I won't know what filesystem to use for the rest of the HDD until I know whether or not I'm reinstalling Windows (the swap partition is mainly for hibernation and Windows 7 can stick its mostly-mandatory page file in it with SwapFS). My main data storage is over my home network.
As far as data partitions, I tend to put them in /mnt/$HOSTNAME/LABEL - sure, it might be easier to just mount them in $HOME instead of sticking them in /mnt and symlinking if/when needed, but I like to at least maintain the illusion of a multiuser system (or just forgo symlinks altogether and cd in the /mnt tree ...)
Adding the discard mount option can have noticable performance drawbacks; you could instead manually or up a cronjob to run fstrim when you're not actively using the system and such impact would be less noticable. Pros and cons w/ either method
(As an aside, one thing you can do if you want to do something that'll go somewhat over your 4 GB ram limit - like linking Firefox PGO x64 which uses somewhere around 5 GB - you can use zramswap. It acts as a high-priority swap and compresses RAM contents when needed. Slower than plain RAM once you start "swapping" but quite a bit faster than disk i/o!)

Problem with boot / new install system ond SSD

Hi guys,
I have fresh installed system on my new SSD. I use my old HDD as external usb drive.
I have problem with boot when I dont have connected HDD to usb.
My system boot only to console no to KDE. When I connect external HDD to usb and reboot system, system boot normally.
Logs after boot.
Feb 26 16:46:39 arch systemd[1]: Reached target Login Prompts.
Feb 26 16:46:39 arch systemd[1]: Starting K Display Manager...
Feb 26 16:46:39 arch systemd[1]: Started K Display Manager.
Feb 26 16:46:39 arch systemd-logind[231]: New seat seat0.
Feb 26 16:46:39 arch systemd[1]: Started Login Service.
Feb 26 16:46:40 arch kernel: microcode: CPU0 sig=0x1067a, pf=0x80, revision=0xa07
Feb 26 16:46:40 arch kernel: platform microcode: Direct firmware load failed with error -2
Feb 26 16:46:40 arch kernel: platform microcode: Falling back to user helper
Feb 26 16:46:40 arch kernel: random: nonblocking pool is initialized
Feb 26 16:46:40 arch kernel: uvcvideo: Found UVC 1.00 device CNF7129 (04f2:b071)
Feb 26 16:46:40 arch laptop-mode[271]: enabled, not active
Feb 26 16:46:40 arch kernel: input: CNF7129 as /devices/pci0000:00/0000:00:1a.7/usb3/3-3/3-3:1.0/input/input16
Feb 26 16:46:40 arch kernel: usbcore: registered new interface driver uvcvideo
Feb 26 16:46:40 arch kernel: USB Video Class driver (1.1.1)
Feb 26 16:46:40 arch systemd[1]: Started Wicd a wireless and wired network manager for Linux.
Feb 26 16:46:40 arch systemd[1]: Starting Network.
Feb 26 16:46:40 arch systemd[1]: Reached target Network.
Feb 26 16:46:40 arch systemd[1]: Starting OpenSSH Daemon...
Feb 26 16:46:40 arch systemd[1]: Started OpenSSH Daemon.
Feb 26 16:46:40 arch systemd[1]: Starting NoMachine Server daemon...
Feb 26 16:46:40 arch sshd[373]: Server listening on 0.0.0.0 port 22.
Feb 26 16:46:40 arch sshd[373]: Server listening on :: port 22.
Feb 26 16:46:40 arch mtp-probe[404]: checking bus 7, device 2: "/sys/devices/pci0000:00/0000:00:1d.1/usb7/7-2"
Feb 26 16:46:40 arch mtp-probe[404]: bus: 7, device: 2 was not an MTP device
Feb 26 16:46:40 arch kernel: hidraw: raw HID events driver (C) Jiri Kosina
Feb 26 16:46:40 arch kernel: usbcore: registered new interface driver usbhid
Feb 26 16:46:40 arch kernel: usbhid: USB HID core driver
Feb 26 16:46:40 arch systemd[1]: Starting Sound Card.
Feb 26 16:46:40 arch systemd[1]: Reached target Sound Card.
Feb 26 16:46:40 arch systemd-udevd[145]: renamed network interface eth0 to enp3s0
Feb 26 16:46:40 arch kernel: psmouse serio4: elantech: assuming hardware version 2 (with firmware version 0x040101)
Feb 26 16:46:40 arch kernel: psmouse serio4: elantech: Synaptics capabilities query result 0x7e, 0x13, 0x0d.
Feb 26 16:46:40 arch kernel: i915 0000:00:02.0: irq 45 for MSI/MSI-X
Feb 26 16:46:40 arch kernel: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
Feb 26 16:46:40 arch kernel: [drm] Driver supports precise vblank timestamp query.
Feb 26 16:46:40 arch kernel: vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
Feb 26 16:46:40 arch kernel: iTCO_vendor_support: vendor-support=0
Feb 26 16:46:40 arch kernel: iTCO_wdt: Intel TCO WatchDog Timer Driver v1.10
Feb 26 16:46:40 arch kernel: iTCO_wdt: Found a ICH9M TCO device (Version=2, TCOBASE=0x0860)
Feb 26 16:46:40 arch kernel: iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
Feb 26 16:46:40 arch kernel: input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio4/input/input15
Feb 26 16:46:40 arch systemd-logind[231]: Watching system buttons on /dev/input/event2 (Lid Switch)
Feb 26 16:46:40 arch systemd-logind[231]: Watching system buttons on /dev/input/event1 (Sleep Button)
Feb 26 16:46:40 arch systemd-logind[231]: Watching system buttons on /dev/input/event3 (Power Button)
Feb 26 16:46:41 arch kernel: microcode: CPU1 sig=0x1067a, pf=0x80, revision=0xa07
Feb 26 16:46:41 arch kernel: platform microcode: Direct firmware load failed with error -2
Feb 26 16:46:41 arch kernel: platform microcode: Falling back to user helper
Feb 26 16:46:41 arch kernel: input: 2.4G Wireless Wireless Receiver as /devices/pci0000:00/0000:00:1d.1/usb7/7-2/7-2:1.0/input/input17
Feb 26 16:46:41 arch kernel: hid-generic 0003:1915:0F01.0001: input,hidraw0: USB HID v1.11 Keyboard [2.4G Wireless Wireless Receiver ] on usb-0000:00:1d.1-2/input0
Feb 26 16:46:41 arch kernel: input: 2.4G Wireless Wireless Receiver as /devices/pci0000:00/0000:00:1d.1/usb7/7-2/7-2:1.1/input/input18
Feb 26 16:46:41 arch kernel: hid-generic 0003:1915:0F01.0002: input,hidraw1: USB HID v1.11 Mouse [2.4G Wireless Wireless Receiver ] on usb-0000:00:1d.1-2/input1
Feb 26 16:46:41 arch kernel: BUG: unable to handle kernel NULL pointer dereference at (null)
Feb 26 16:46:41 arch kernel: IP: [<ffffffffa06c1317>] mousedev_open_device+0x77/0x100 [mousedev]
Feb 26 16:46:41 arch kernel: PGD b650b067 PUD b650a067 PMD 0
Feb 26 16:46:41 arch kernel: Oops: 0000 [#1] PREEMPT SMP
Feb 26 16:46:41 arch kernel: Modules linked in: mousedev(+) hid_generic iTCO_wdt iTCO_vendor_support ath9k(+) usbhid ath9k_common hid ath9k_hw ath uvcvideo mac80211 microcode(+) videobuf2_vmalloc videobuf2_memops videobuf2_core videodev media evdev psmouse serio_raw pcspkr cfg80211 lpc_ich i915(+) atl1e snd_hda_codec_via snd_hda_intel drm_kms_helper snd_hda_codec drm snd_hwdep snd_pcm snd_page_alloc i2c_algo_bit i2c_core snd_timer asus_laptop snd battery ac soundcore sparse_keymap acpi_cpufreq rfkill video input_polldev thermal intel_agp intel_gtt shpchp processor button ext4 crc16 mbcache jbd2 sr_mod cdrom sd_mod atkbd libps2 ahci libahci libata scsi_mod ehci_pci uhci_hcd ehci_hcd usbcore usb_common i8042 serio
Feb 26 16:46:41 arch kernel: CPU: 1 PID: 227 Comm: acpid Not tainted 3.13.5-1-ARCH #1
Feb 26 16:46:41 arch kernel: Hardware name: ASUSTeK Computer Inc. K50IJ /K50IJ , BIOS 217 12/04/2009
Feb 26 16:46:41 arch kernel: task: ffff88007ffeda00 ti: ffff8800b6516000 task.ti: ffff8800b6516000
Feb 26 16:46:41 arch kernel: RIP: 0010:[<ffffffffa06c1317>] [<ffffffffa06c1317>] mousedev_open_device+0x77/0x100 [mousedev]
Feb 26 16:46:41 arch kernel: RSP: 0018:ffff8800b6517c10 EFLAGS: 00010202
Feb 26 16:46:41 arch kernel: RAX: 0000000000000000 RBX: ffff8801390f5800 RCX: ffff8801390f5868
Feb 26 16:46:41 arch kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000246
Feb 26 16:46:41 arch kernel: RBP: ffff8800b6517c28 R08: 0000000000000000 R09: ffff88013b001600
Feb 26 16:46:41 arch kernel: R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000000
Feb 26 16:46:41 arch kernel: R13: ffff8801390f5880 R14: ffff8800b3287558 R15: ffff880138c8f600
Feb 26 16:46:41 arch kernel: FS: 00007f8de7e14700(0000) GS:ffff88013fd00000(0000) knlGS:0000000000000000
Feb 26 16:46:41 arch kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Feb 26 16:46:41 arch kernel: CR2: 0000000000000000 CR3: 00000000b6507000 CR4: 00000000000407e0
Feb 26 16:46:41 arch kernel: Stack:
Feb 26 16:46:41 arch kernel: ffff88013926e400 ffff8801390f5800 ffff8801390f5878 ffff8800b6517c60
Feb 26 16:46:41 arch kernel: ffffffffa06c20cc ffff8801390f5b48 ffff8800b3287558 ffff880138c8f600
Feb 26 16:46:41 arch kernel: ffffffffa06c2e80 ffff880138c8f610 ffff8800b6517c98 ffffffff811a834f
Feb 26 16:46:41 arch kernel: Call Trace:
Feb 26 16:46:41 arch kernel: [<ffffffffa06c20cc>] mousedev_open+0xcc/0x150 [mousedev]
Feb 26 16:46:41 arch kernel: [<ffffffff811a834f>] chrdev_open+0x9f/0x1d0
Feb 26 16:46:41 arch kernel: [<ffffffff811a19e7>] do_dentry_open+0x1b7/0x2c0
Feb 26 16:46:41 arch kernel: [<ffffffff811aedc1>] ? __inode_permission+0x41/0xb0
Feb 26 16:46:41 arch kernel: [<ffffffff811a82b0>] ? cdev_put+0x30/0x30
Feb 26 16:46:41 arch kernel: [<ffffffff811a1e01>] finish_open+0x31/0x40
Feb 26 16:46:41 arch kernel: [<ffffffff811b1bf2>] do_last+0x572/0xe90
Feb 26 16:46:41 arch kernel: [<ffffffff811af0b6>] ? link_path_walk+0x236/0x8d0
Feb 26 16:46:41 arch kernel: [<ffffffff811b25cb>] path_openat+0xbb/0x6b0
Feb 26 16:46:41 arch kernel: [<ffffffff811b3cda>] do_filp_open+0x3a/0x90
Feb 26 16:46:41 arch kernel: [<ffffffff811c05c7>] ? __alloc_fd+0xa7/0x130
Feb 26 16:46:41 arch kernel: [<ffffffff811a2fd4>] do_sys_open+0x124/0x220
Feb 26 16:46:41 arch kernel: [<ffffffff811a30ee>] SyS_open+0x1e/0x20
Feb 26 16:46:41 arch kernel: [<ffffffff8152142d>] system_call_fastpath+0x1a/0x1f
Feb 26 16:46:41 arch kernel: Code: c0 6e e5 e0 5b 44 89 e0 41 5c 41 5d 5d c3 66 0f 1f 44 00 00 4c 89 ef 41 bc ed ff ff ff e8 a2 6e e5 e0 eb e0 48 8b 15 c9 21 00 00 <8b> 02 8d 48 01 85 c0 89 0a 75 c6 48 8b 05 37 1f 00 00 48 3d 60
Feb 26 16:46:41 arch kernel: RIP [<ffffffffa06c1317>] mousedev_open_device+0x77/0x100 [mousedev]
Feb 26 16:46:41 arch kernel: RSP <ffff8800b6517c10>
Feb 26 16:46:41 arch kernel: CR2: 0000000000000000
Feb 26 16:46:41 arch kernel: ---[ end trace 76aa0cbb67cf77f6 ]---
Feb 26 16:46:41 arch kernel: microcode: Microcode Update Driver: v2.00 <[email protected]>, Peter Oruba
Feb 26 16:46:41 arch systemd[1]: acpid.service: main process exited, code=killed, status=9/KILL
Feb 26 16:46:41 arch systemd[1]: Unit acpid.service entered failed state.
Feb 26 16:46:41 arch kernel: [drm] GMBUS [i915 gmbus dpc] timed out, falling back to bit banging on pin 4
Feb 26 16:46:41 arch systemd[1]: Started Laptop Mode Tools.
Feb 26 16:46:41 arch nxserver[374]: NX> 161 Enabled service: nxserver.
Feb 26 16:46:42 arch kernel: fbcon: inteldrmfb (fb0) is primary device
Feb 26 16:46:42 arch kernel: ath: phy0: Enable LNA combining
Feb 26 16:46:42 arch kernel: ath: EEPROM regdomain: 0x60
Feb 26 16:46:42 arch kernel: ath: EEPROM indicates we should expect a direct regpair map
Feb 26 16:46:42 arch kernel: ath: Country alpha2 being used: 00
Feb 26 16:46:42 arch kernel: ath: Regpair used: 0x60
Feb 26 16:46:42 arch kernel: ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
Feb 26 16:46:42 arch kernel: ieee80211 phy0: Atheros AR9285 Rev:2 mem=0xffffc90011e80000, irq=17
Feb 26 16:46:42 arch systemd-udevd[139]: renamed network interface wlan0 to wlp2s0
Feb 26 16:46:42 arch kernel: Console: switching to colour frame buffer device 170x48
Feb 26 16:46:42 arch kernel: i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Feb 26 16:46:42 arch kernel: i915 0000:00:02.0: registered panic notifier
Feb 26 16:46:42 arch kernel: ACPI: Video Device [VGA] (multi-head: yes rom: no post: no)
Feb 26 16:46:42 arch kernel: acpi device:38: registered as cooling_device2
Feb 26 16:46:42 arch kernel: input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input19
Feb 26 16:46:42 arch nxserver[374]: NX> 161 Enabled service: nxnode.
Feb 26 16:46:42 arch nxserver[374]: NX> 161 Enabled service: nxd.
Feb 26 16:46:42 arch systemd[1]: Started NoMachine Server daemon.
Feb 26 16:46:42 arch systemd[1]: Starting Multi-User System.
Feb 26 16:46:42 arch systemd[1]: Reached target Multi-User System.
Feb 26 16:46:42 arch systemd[1]: Starting Graphical Interface.
Feb 26 16:46:42 arch systemd[1]: Reached target Graphical Interface.
Feb 26 16:46:42 arch systemd[1]: Startup finished in 1.241s (kernel) + 3.231s (userspace) = 4.473s.
Feb 26 16:46:46 arch kernel: IPv6: ADDRCONF(NETDEV_UP): enp3s0: link is not ready
Feb 26 16:46:48 arch kernel: IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
Feb 26 16:46:49 arch wicd[226]: dhcpcd[1383]: dhcpcd not running
Feb 26 16:46:49 arch dhcpcd[1383]: dhcpcd not running
Feb 26 16:46:49 arch kernel: IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
Feb 26 16:46:49 arch wicd[226]: Failed to connect to non-global ctrl_ifname: wlp2s0 error: No such file or directory
Feb 26 16:46:49 arch wicd[226]: dhcpcd[1389]: dhcpcd not running
Feb 26 16:46:49 arch dhcpcd[1389]: dhcpcd not running
Feb 26 16:46:49 arch kernel: IPv6: ADDRCONF(NETDEV_UP): enp3s0: link is not ready
Feb 26 16:46:49 arch wicd[226]: Failed to connect to non-global ctrl_ifname: enp3s0 error: No such file or directory
Feb 26 16:46:49 arch wicd[226]: dhcpcd[1397]: dhcpcd not running
Feb 26 16:46:49 arch dhcpcd[1397]: dhcpcd not running
Feb 26 16:46:49 arch kernel: IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
Feb 26 16:46:49 arch wicd[226]: Failed to connect to non-global ctrl_ifname: wlp2s0 error: No such file or directory
Feb 26 16:46:51 arch systemd[1]: Starting Getty on tty2...
Feb 26 16:46:51 arch systemd[1]: Started Getty on tty2.
Feb 26 16:46:52 arch kernel: wlp2s0: authenticate with 08:86:3b:7f:86:08
Feb 26 16:46:52 arch kernel: wlp2s0: send auth to 08:86:3b:7f:86:08 (try 1/3)
Feb 26 16:46:52 arch kernel: wlp2s0: authenticated
Feb 26 16:46:52 arch kernel: ath9k 0000:02:00.0 wlp2s0: disabling HT/VHT due to WEP/TKIP use
Feb 26 16:46:52 arch kernel: wlp2s0: associate with 08:86:3b:7f:86:08 (try 1/3)
Feb 26 16:46:52 arch kernel: wlp2s0: RX AssocResp from 08:86:3b:7f:86:08 (capab=0x411 status=0 aid=4)
Feb 26 16:46:52 arch kernel: wlp2s0: associated
Feb 26 16:46:52 arch kernel: IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
Feb 26 16:46:53 arch dhcpcd[1416]: version 6.2.1 starting
Feb 26 16:46:54 arch dhcpcd[1416]: DUID 00:01:00:01:1a:96:a5:70:1c:4b:d6:a2:1f:ad
Feb 26 16:46:54 arch dhcpcd[1416]: wlp2s0: IAID d6:a2:1f:ad
Feb 26 16:46:54 arch dhcpcd[1416]: wlp2s0: soliciting an IPv6 router
Feb 26 16:46:54 arch dhcpcd[1416]: wlp2s0: ipv6nd_sendrsprobe: sendmsg: Cannot assign requested address
Feb 26 16:46:54 arch dhcpcd[1416]: wlp2s0: rebinding lease of 192.168.2.3
Feb 26 16:46:55 arch kernel: type=1006 audit(1393429615.096:2): pid=1406 uid=0 old auid=4294967295 new auid=0 old ses=4294967295 new ses=1 res=1
Feb 26 16:46:55 arch login[1406]: pam_unix(login:session): session opened for user root by LOGIN(uid=0)
Feb 26 16:46:55 arch systemd[1]: Starting user-0.slice.
Feb 26 16:46:55 arch systemd[1]: Created slice user-0.slice.
Feb 26 16:46:55 arch systemd[1]: Starting User Manager for 0...
Feb 26 16:46:55 arch kernel: type=1006 audit(1393429615.106:3): pid=1477 uid=0 old auid=4294967295 new auid=0 old ses=4294967295 new ses=2 res=1
Feb 26 16:46:55 arch systemd[1]: Starting Session 1 of user root.
Feb 26 16:46:55 arch systemd[1]: Started Session 1 of user root.
Feb 26 16:46:55 arch systemd-logind[231]: New session 1 of user root.
Feb 26 16:46:55 arch systemd[1477]: pam_unix(systemd-user:session): session opened for user root by (uid=0)
Feb 26 16:46:55 arch login[1406]: ROOT LOGIN ON tty2
Feb 26 16:46:55 arch systemd[1477]: Failed to open private bus connection: Failed to connect to socket /run/user/0/dbus/user_bus_socket: No such file or directory
Feb 26 16:46:55 arch systemd[1477]: Mounted /sys/kernel/config.
Feb 26 16:46:55 arch systemd[1477]: Stopped target Sound Card.
Feb 26 16:46:55 arch systemd[1477]: Starting Default.
Feb 26 16:46:55 arch systemd[1477]: Reached target Default.
Feb 26 16:46:55 arch systemd[1477]: Startup finished in 7ms.
Feb 26 16:46:55 arch systemd[1]: Started User Manager for 0.
Feb 26 16:46:59 arch dhcpcd[1416]: wlp2s0: leased 192.168.2.3 for 283824000 seconds
Feb 26 16:46:59 arch dhcpcd[1416]: wlp2s0: adding route to 192.168.2.0/24
Feb 26 16:46:59 arch dhcpcd[1416]: wlp2s0: adding default route via 192.168.2.1
Feb 26 16:46:59 arch dhcpcd[1416]: forked to background, child pid 1522
Feb 26 16:47:10 arch kdm[238]: X server startup timeout, terminating
Feb 26 16:47:12 arch systemd-udevd[131]: worker [140] /devices/pci0000:00/0000:00:02.0 timeout; kill it
Feb 26 16:47:12 arch systemd-udevd[131]: seq 1255 '/devices/pci0000:00/0000:00:02.0' killed
Feb 26 16:47:12 arch systemd-udevd[131]: worker [146] /devices/platform/i8042/serio4/input/input15 timeout; kill it
Feb 26 16:47:12 arch systemd-udevd[131]: seq 1659 '/devices/platform/i8042/serio4/input/input15' killed
Feb 26 16:47:12 arch systemd-udevd[131]: worker [148] /devices/pci0000:00/0000:00:1d.1/usb7/7-2/7-2:1.1/input/input18 timeout; kill it
Feb 26 16:47:12 arch systemd-udevd[131]: seq 1679 '/devices/pci0000:00/0000:00:1d.1/usb7/7-2/7-2:1.1/input/input18' killed
Feb 26 16:47:12 arch kernel: [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
Feb 26 16:47:12 arch systemd-udevd[131]: worker [140] terminated by signal 9 (Killed)
Feb 26 16:47:12 arch systemd-udevd[131]: worker [148] terminated by signal 9 (Killed)
Feb 26 16:47:12 arch systemd[1]: Starting Load/Save Screen Backlight Brightness of acpi_video0...
Feb 26 16:47:12 arch systemd[1]: Started Load/Save Screen Backlight Brightness of acpi_video0.
Feb 26 16:47:12 arch kernel: input: failed to attach handler mousedev to device input15, error: -4
Feb 26 16:47:12 arch systemd-udevd[131]: worker [146] terminated by signal 9 (Killed)
Feb 26 16:47:12 arch kernel: input: failed to attach handler mousedev to device input18, error: -4
Feb 26 16:47:12 arch kernel: mousedev: PS/2 mouse device common for all mice
Feb 26 16:47:13 arch kdm[238]: X server for display :0 cannot be started, session disabled
Feb 26 16:48:56 arch kernel: usb 7-2: USB disconnect, device number 2
Feb 26 16:48:56 arch laptop-mode[1782]: Laptop mode
Feb 26 16:48:56 arch laptop-mode[1783]: enabled, not active
Feb 26 16:48:56 arch laptop-mode[1834]: Laptop mode
[xx@arch Desktop]$ uname -a
Linux arch 3.13.5-1-ARCH #1 SMP PREEMPT Sun Feb 23 00:25:24 CET 2014 x86_64 GNU/Linux
Could you please someone help me with this?
Thanks

Sorry to bump this, but I'm having the exact same error tonight on my HTPC, any chance you found out what the problem was ?
To make matters worse, it's not happening every single time, but maybe every 4 out of 5 boots (same kernel, no changes in between.)
I thought this was a kernel issue related to this:
https://lkml.org/lkml/2014/3/10/359
I've tried adding atkbd and psmouse to my mkinitcpio.conf MODULES section and rebuilt, but no change.
I changed the NVidia driver from nvidia-304xx to nvidia-full-beta-all ( 334.21 ) from AUR but it had the same error at the same place.
Here's the part from `dmesg` where it borks:
[ 3.229195] logitech-djreceiver 0003:046D:C52B.0003: hiddev0,hidraw0: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:04.0-3/input2
[ 3.236312] input: Logitech Unifying Device. Wireless PID:400e as /devices/pci0000:00/0000:00:04.0/usb3/3-3/3-3:1.2/0003:046D:C52B.0003/input/input6
[ 3.237230] logitech-djdevice 0003:046D:C52B.0004: input,hidraw1: USB HID v1.11 Keyboard [Logitech Unifying Device. Wireless PID:400e] on usb-0000:00:04.0-3:1
[ 3.279150] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 3.280083] IP: [<ffffffffa1cbc317>] mousedev_open_device+0x77/0x100 [mousedev]
[ 3.280810] PGD c99ea067 PUD c9f4a067 PMD 0
[ 3.281266] Oops: 0000 [#1] PREEMPT SMP
[ 3.281668] Modules linked in: mousedev(+) nvidia(PO+) snd_hda_codec_realtek hid_logitech_dj usbhid hid usb_storage coretemp evdev microcode pcspkr serio_raw snd_hda_intel(+) snd_hda_codec shpchp snd_hwdep snd_pcm snd_page_alloc snd_timer snd soundcore i2c_nforce2 i2c_core wmi processor button r8169 mii ext4 crc16 mbcache jbd2 sd_mod ata_generic pata_acpi ahci libahci libata ohci_pci ohci_hcd ehci_pci ehci_hcd scsi_mod usbcore usb_common psmouse atkbd libps2 i8042 serio
[ 3.281820] CPU: 1 PID: 211 Comm: acpid Tainted: P O 3.13.6-1-ARCH #1
[ 3.281820] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./MCP7A-ION, BIOS 080015 10/10/2009
[ 3.281820] task: ffff8800ca5c1b00 ti: ffff8800c97f0000 task.ti: ffff8800c97f0000
[ 3.281820] RIP: 0010:[<ffffffffa1cbc317>] [<ffffffffa1cbc317>] mousedev_open_device+0x77/0x100 [mousedev]
[ 3.281820] RSP: 0018:ffff8800c97f1c10 EFLAGS: 00010202
[ 3.281820] RAX: 0000000000000000 RBX: ffff8800c9987000 RCX: ffff8800c9987068
[ 3.281820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000246
[ 3.281820] RBP: ffff8800c97f1c28 R08: 0000000000000000 R09: ffff8800cf401600
[ 3.281820] R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000000
[ 3.281820] R13: ffff8800c9987080 R14: ffff8800c0260058 R15: ffff8800c9f2a500
[ 3.281820] FS: 00007f8f12f05700(0000) GS:ffff8800cfa80000(0000) knlGS:0000000000000000
[ 3.281820] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 3.281820] CR2: 0000000000000000 CR3: 00000000ca93e000 CR4: 00000000000007e0
[ 3.281820] Stack:
[ 3.281820] ffff8800c9940000 ffff8800c9987000 ffff8800c9987078 ffff8800c97f1c60
[ 3.281820] ffffffffa1cbd0cc ffff8800c9987348 ffff8800c0260058 ffff8800c9f2a500
[ 3.281820] ffffffffa1cbde80 ffff8800c9f2a510 ffff8800c97f1c98 ffffffff811a83ef
[ 3.392372] Call Trace:
[ 3.398245] [<ffffffffa1cbd0cc>] mousedev_open+0xcc/0x150 [mousedev]
[ 3.398245] [<ffffffff811a83ef>] chrdev_open+0x9f/0x1d0
[ 3.398245] [<ffffffff811a1a87>] do_dentry_open+0x1b7/0x2c0
[ 3.398245] [<ffffffff811aee61>] ? __inode_permission+0x41/0xb0
[ 3.398245] [<ffffffff811a8350>] ? cdev_put+0x30/0x30
[ 3.398245] [<ffffffff811a1ea1>] finish_open+0x31/0x40
[ 3.398245] [<ffffffff811b1c92>] do_last+0x572/0xe90
[ 3.398245] [<ffffffff811af156>] ? link_path_walk+0x236/0x8d0
[ 3.398245] [<ffffffff811b266b>] path_openat+0xbb/0x6b0
[ 3.508083] random: nonblocking pool is initialized
[ 3.398245] [<ffffffff811b3d7a>] do_filp_open+0x3a/0x90
[ 3.398245] [<ffffffff811c0617>] ? __alloc_fd+0xa7/0x130
[ 3.398245] [<ffffffff811a3074>] do_sys_open+0x124/0x220
[ 3.398245] [<ffffffff811a318e>] SyS_open+0x1e/0x20
[ 3.398245] [<ffffffff815216ad>] system_call_fastpath+0x1a/0x1f
[ 3.556729] Code: 40 c1 85 df 5b 44 89 e0 41 5c 41 5d 5d c3 66 0f 1f 44 00 00 4c 89 ef 41 bc ed ff ff ff e8 22 c1 85 df eb e0 48 8b 15 c9 21 00 00 <8b> 02 8d 48 01 85 c0 89 0a 75 c6 48 8b 05 37 1f 00 00 48 3d 60
[ 3.556729] RIP [<ffffffffa1cbc317>] mousedev_open_device+0x77/0x100 [mousedev]
[ 3.556729] RSP <ffff8800c97f1c10>
[ 3.556729] CR2: 0000000000000000
[ 3.563412] ---[ end trace 590b482a8704c6ac ]---
[ 3.980300] input: HDA NVidia HDMI/DP,pcm=3 Phantom as /devices/pci0000:00/0000:00:08.0/sound/card0/input7
Here's the output on a good boot:
[ 3.415791] logitech-djreceiver 0003:046D:C52B.0003: hiddev0,hidraw0: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:04.0-3/input2
[ 3.422256] input: Logitech Unifying Device. Wireless PID:400e as /devices/pci0000:00/0000:00:04.0/usb3/3-3/3-3:1.2/0003:046D:C52B.0003/input/input6
[ 3.422644] logitech-djdevice 0003:046D:C52B.0004: input,hidraw1: USB HID v1.11 Keyboard [Logitech Unifying Device. Wireless PID:400e] on usb-0000:00:04.0-3:1
[ 3.434861] mousedev: PS/2 mouse device common for all mice
[ 3.853639] input: HDA NVidia HDMI/DP,pcm=3 Phantom as /devices/pci0000:00/0000:00:08.0/sound/card0/input7
Here's my mkinitcpio.conf
: grep -v ^\# /etc/mkinitcpio.conf
MODULES="atkbd psmouse"
BINARIES=""
FILES=""
HOOKS="base udev autodetect modconf block filesystems keyboard fsck"
Last edited by corpdecker (2014-03-19 02:47:30)

How do I uninstall Operating System from SSD

I have just purchased the hightest spec 27 inch Imac with a combi Hard Drive, 2TB Serial ATA + 256GB SSD.
The Operating System has been installed onto the SSD, actually I want it installed on the 2TB Serial ATA Drive,
how do I uninstall & reinstall the Operating System. Basically, this computer will only be used for Photoshop CS5/6
so I want to use the SSD as a scratch drive!

This I agree to. For something like an Macbook Air, they can make sense for near instant on and fault tolerance. But for an Imac, if you have enough real RAM, it becomes a latency thing on app start up and not a speed thing....and the latency between clicking an app and it starting is already small. Where you may notice the latency is waking from sleep on an iMac, probably little else.

New iMac: System on SSD, Users on HDD?

I'm setting up a newly purchased iMac, one which has two storage devices, the 256GB SSD and a 2TB HDD. I want to transfer user data from an old machine (an old Power Mac), but there won't be enough room on the SSD to contain all of the user data.
What is the best way to configure the machine so that when I do a data migration, everything will be in its proper place?
Ideally, I would want to have /Users on the HDD and most everything else on the SSD. However, it doesn't look like Snow Leopard supports this directly (i.e., I don't see anything in Disk Utility to set something like this up). I've seen some answers on the web about removing the /Users folder and replacing it with a soft link to a folder on the second volume. Will this work, and is it recommended? Are there better ways to accomplish my desire?
Thanks for any and all advice!

I have the same configuration (altho I have a 1TB HDD). I was able to configure the SSD and HDD fairly simply. My SSD currently contains my OS and Apps. The HDD contains my "users" folder and all data. Here are the step by step instructions.
NOTE 1: I would recommend you follow these instructions PRIOR to migrating your data from your old imac/macbook/macmini. However, I would assume these instructions would still work if you already migrated your data over.
NOTE 2: Don't forget to have all the software updates already installed on your macs before starting.
SECTION 1: Move Home Folder to HDD
1. Click on ‘Macintosh HD’ in the Finder and open the ‘Users’ folder. In here you will find a folder named after your shortname. This is your home folder. As it is currently your active home folder it will have a ‘house’ icon assigned to it. Copy this folder to the 2nd hardrive by simply dragging it. (The copied folder will not have the ‘house’ icon as it is not yet recognized as your active home folder. We will change this in the following steps.)
2. Open the ‘System Preferences’ application from either the Dock, the Applications folder or from the Apple menu.
3. Click on the ‘Accounts’ icon in the ‘System’ section.
4. After entering your password to unlock the padlock, CTL-Click (or right click) on the active admin account (from the list of user accounts in the left pane) to reveal an ‘Advanced Options’ contextual menu. Select this item.
5. You will be presented with a pane full of advanced settings (and also a warning about how you should only change these settings if you know what you are doing!). Ignore all of these settings/fields except for the ‘Home Directory’ option. This is the path that OS X uses to locate your home folder when you login. It should say: /Users/shortname
6. Click on the ‘Choose’ button, and browse to the home folder in the new location (this will be the folder you moved in Step 1 which will be named after your shortname). After you select the new location, the ‘Home directory’ path should change to something like: /Volumes/shortname.
7. OS X will continue to use the original home folder until you restart. So restart the computer and login as normal. To confirm that the new home folder is now active, browse to the folder you copied to the 2nd hardrive and check it has the ‘house’ icon assigned to it. Now that your home folder is successfully located on your 2nd drive, you can delete the original home folder in the Users folder. It should now have a generic folder icon as it is no longer the active home folder.
SECTION 2: Migrating Your Apps From Old Mac
1. I used Migration Assistant (via firewire) and ONLY migrated the Apps. This copied everything over to the SSD seamlessly.
SECTION 3: Migrating Your Data
1. This part is more painstaking as you will need to mainly drag and drop your files from your old mac via Target Disk mode. Once again, I used firewire to do this.
Note: I basically just copied each of the "users" folders' data on my old imac individually to the respective new "users" folders on my new imac (i.e. the one you created in the HDD). Depending on how much data you have will determine how long this takes you.
2. Here is the link for the instructions on how to perform the Target Disk mode transfer. http://support.apple.com/kb/HT1661
You should be all set and your new imac should be johnny f*n blaze now!

System Only SSD

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