My macbook pro 15" usb drives keep disconnecting and transfer speeds become very slow.
Both the usb drives on my macbook pro 15" (2012 model) have been transferring speeds very slow and when i try to use my harddisk it keeps disconnecting. Please help
when i try to play games like minecraft and somtimes when im on the internet, ive been doing some research and apparently my cpu is really low, %User: 2.68 %System: 1.87 %idle: 96.74, is that bad? and also it is very quick to charge but like i said cant keep a charge for very long, end up having to charge it almost twice a day
Similar Messages
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Seagate Expansion 2 TB External USB drive keeps disconnecting
Hi,
I just attached a nearly new Seagate 2 TB Expansion USB external drive to my iMac running Snow Leopard, as a Time Machine drive.
The drive sits idle until Time Machine does a backup. However, the drive keeps disconnecting momentarily - I get the "your drive was not ejected properly" error message, the drive icon disappears for a few seconds, and then the drive reconnects by itself. Happens several times an hour.
Is this a known glitch? Do I need to replace the drive (it's under warranty, but still a bit of a nuisance)?My logs...
Mar 18 19:11:42: --- last message repeated 2 times ---
Mar 18 19:11:42 ****-******-mac-mini kernel[0]: jnl: disk1s2: replay_journal: from: 3182592 to: 3252224 (joffset 0x8f25f95000)
Mar 18 19:11:42 ****-******-mac-mini kernel[0]: jnl: disk1s2: journal replay done.
Mar 18 19:28:39 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 DisablePolling
Mar 18 19:28:39 ****-******-mac-mini kernel[0]: disk1s2: media is not present.
Mar 18 19:28:39 ****-******-mac-mini kernel[0]: jnl: disk1s2: dojnlio: strategy err 0x6
Mar 18 19:28:39 ****-******-mac-mini kernel[0]: jnl: disk1s2: end_transaction: only wrote 0 of 8192 bytes to the journal!
Mar 18 19:28:39 ****-******-mac-mini kernel[0]: jnl: disk1s2: close: journal 0x4efcb10, is invalid. aborting outstanding transactions
Mar 18 19:28:39 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 overriding stop
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 overriding init
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: GetVendorAndModelIDInfo suceeded
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: probe suceeded bidding for device
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start begin
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 ResetMediumCharacteristics
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 EnablePolling
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s4
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s5
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s6
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s7
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s8
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::EnableSmart: begin
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::EnableSmart: using IssueSmartEnable
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: IssueSAT12Request - begin
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: IssueSAT12Request - SCSITaskStatus 0
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: IssueSAT12Request - returning main line 1
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s9
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s10
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s11
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::Start currentSecurityState = kSecurityNotSupported
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s12
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s13
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 DetermineMediumCapacity start
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 DetermineMediumCapacity results: 0x0200 0xe8e088ae
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 SetMediumCharacteristics
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::Start sending kIOMediaStateOnline message
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s14
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start exit
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: Couldn't alloc class "comseagateFDEBootStrap"
Mar 18 19:28:52: --- last message repeated 2 times ---
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: jnl: disk1s2: replay_journal: from: 3252224 to: 3305472 (joffset 0x8f25f95000)
Mar 18 19:28:52 ****-******-mac-mini kernel[0]: jnl: disk1s2: journal replay done.
Mar 18 19:48:50 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 DisablePolling
Mar 18 19:48:50 ****-******-mac-mini kernel[0]: disk1s2: media is not present.
Mar 18 19:48:50 ****-******-mac-mini kernel[0]: jnl: disk1s2: dojnlio: strategy err 0x6
Mar 18 19:48:50 ****-******-mac-mini kernel[0]: jnl: disk1s2: end_transaction: only wrote 0 of 8192 bytes to the journal!
Mar 18 19:48:50 ****-******-mac-mini kernel[0]: jnl: disk1s2: close: journal 0x4efcb10, is invalid. aborting outstanding transactions
Mar 18 19:48:50 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 overriding stop
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 overriding init
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: GetVendorAndModelIDInfo suceeded
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: probe suceeded bidding for device
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start begin
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 ResetMediumCharacteristics
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 EnablePolling
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s4
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s5
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s6
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s7
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s8
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::EnableSmart: begin
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::EnableSmart: using IssueSmartEnable
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: IssueSAT12Request - begin
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: IssueSAT12Request - SCSITaskStatus 0
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: IssueSAT12Request - returning main line 1
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s9
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s10
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s11
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::Start currentSecurityState = kSecurityNotSupported
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s12
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s13
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 DetermineMediumCapacity start
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 DetermineMediumCapacity results: 0x0200 0xe8e088ae
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 SetMediumCharacteristics
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::Start sending kIOMediaStateOnline message
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s14
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start exit
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: Couldn't alloc class "comseagateFDEBootStrap"
Mar 18 19:49:03: --- last message repeated 2 times ---
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: jnl: disk1s2: replay_journal: from: 3305472 to: 3358720 (joffset 0x8f25f95000)
Mar 18 19:49:03 ****-******-mac-mini kernel[0]: jnl: disk1s2: journal replay done.
Mar 18 20:08:01 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 DisablePolling
Mar 18 20:08:01 ****-******-mac-mini kernel[0]: disk1s2: media is not present.
Mar 18 20:08:01 ****-******-mac-mini kernel[0]: jnl: disk1s2: dojnlio: strategy err 0x6
Mar 18 20:08:01 ****-******-mac-mini kernel[0]: jnl: disk1s2: end_transaction: only wrote 0 of 8192 bytes to the journal!
Mar 18 20:08:01 ****-******-mac-mini kernel[0]: jnl: disk1s2: close: journal 0x4efcb10, is invalid. aborting outstanding transactions
Mar 18 20:08:01 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 overriding stop
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 overriding init
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: GetVendorAndModelIDInfo suceeded
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: probe suceeded bidding for device
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start begin
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 ResetMediumCharacteristics
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 EnablePolling
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s4
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s5
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s6
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s7
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s8
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::EnableSmart: begin
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::EnableSmart: using IssueSmartEnable
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: IssueSAT12Request - begin
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: IssueSAT12Request - SCSITaskStatus 0
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: IssueSAT12Request - returning main line 1
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s9
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s10
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s11
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::Start currentSecurityState = kSecurityNotSupported
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s12
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s13
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 DetermineMediumCapacity start
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 DetermineMediumCapacity results: 0x0200 0xe8e088ae
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 SetMediumCharacteristics
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::Start sending kIOMediaStateOnline message
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s14
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start exit
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: Couldn't alloc class "comseagateFDEBootStrap"
Mar 18 20:08:13: --- last message repeated 2 times ---
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: jnl: disk1s2: replay_journal: from: 3358720 to: 3411968 (joffset 0x8f25f95000)
Mar 18 20:08:13 ****-******-mac-mini kernel[0]: jnl: disk1s2: journal replay done.
Mar 18 20:29:11 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 DisablePolling
Mar 18 20:29:11 ****-******-mac-mini kernel[0]: disk1s2: media is not present.
Mar 18 20:29:11 ****-******-mac-mini kernel[0]: jnl: disk1s2: dojnlio: strategy err 0x6
Mar 18 20:29:11 ****-******-mac-mini kernel[0]: jnl: disk1s2: end_transaction: only wrote 0 of 8192 bytes to the journal!
Mar 18 20:29:11 ****-******-mac-mini kernel[0]: jnl: disk1s2: close: journal 0x4efcb10, is invalid. aborting outstanding transactions
Mar 18 20:29:11 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 overriding stop
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 overriding init
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: GetVendorAndModelIDInfo suceeded
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: probe suceeded bidding for device
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start begin
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 ResetMediumCharacteristics
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 EnablePolling
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s4
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s5
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s6
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s7
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s8
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::EnableSmart: begin
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::EnableSmart: using IssueSmartEnable
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: IssueSAT12Request - begin
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: IssueSAT12Request - SCSITaskStatus 0
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: IssueSAT12Request - returning main line 1
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s9
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s10
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s11
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::Start currentSecurityState = kSecurityNotSupported
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s12
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s13
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 DetermineMediumCapacity start
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 DetermineMediumCapacity results: 0x0200 0xe8e088ae
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00 SetMediumCharacteristics
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00::Start sending kIOMediaStateOnline message
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start s14
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: comseagateIOPowSec00: start exit
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: Couldn't alloc class "comseagateFDEBootStrap"
Mar 18 20:29:24: --- last message repeated 2 times ---
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: jnl: disk1s2: replay_journal: from: 3411968 to: 3465216 (joffset 0x8f25f95000)
Mar 18 20:29:24 ****-******-mac-mini kernel[0]: jnl: disk1s2: journal replay done. -
External hard drive keeps disconnecting and then reconnecting
External hard drive on Time Machine, running via USB keeps disconnecting. Get the pop us that the drive wasn't disconnected properly. This Mac is brand new as is the hard drive. It is a Seagate 1T Free Agent.
After a minute or two it reconnects. I've run Seagate diagnostics and it says the drive is fine.
Any suggestions?See #A1 in [Time Machine - Troubleshooting|http://web.me.com/pondini/Time_Machine/Troubleshooting.html] (or use the link in *User Tips* at the top of this forum), for a handy widget that will display the backup messages from your logs.
See what that shows; there may be a problem with the backup, which results in TM ejecting the drive. If so, the disconnect may be a symptom, not a cause. If so, see #C2 there. If not, or if you're not sure, copy and post them here.
Also, to rule out other USB problems, disconnect everything but keyboard and mouse; connect the drive directly to your Mac (no hub).
Make sure all connections are snug and secure.
Try other ports, cables, and combinations of the two (a plug that works fine in one port may not make good contact in another one, and throw intermittent errors). -
USB Drives Randomly Disconnect and then Reconnect
On my laptop I have a USB drive where I keep all of my data. It is always plugged in while the laptop is in use. However a number of times the USB drive disconnects itself and then immediately reconnects. I get the notification that my Y drive has been connected. This causes problems for my synchronization application that constantly monitors changes on my C drive. I have changed all of the Power options that prevent the drive from powering down when not in use but the problem still happens. This problem happens on all of my USB ports. The external drive is a Western Digital My Passport 2 TB drive. This problem is getting to be a real nuisance. I have only had the laptop for 5 months. In searching the internet there seems to be a lot of people that have been having this problem but I couldn't find a suitable solution. I never had this problem with any previous laptops that used this external drive. The laptop is running Windows 8.1 with 12 GB RAM and a 1 TB hard drive. This is the operating system that was installed on the laptop when I purchased it. Has anyone found a fix for this type of problem? Thanks,Joyce
This is a known bug and Microsoft are working on a fix. They plan to fix this before Firefox 4 reaches release candidate phase.
A workaround is to change a preference in Firefox:
# Type '''about:config''' into the location bar and press enter
# Accept the warning message that appears, you will be taken to a list of preferences
# Locate the preference '''html5.enable''' and double-click on it to change its value to '''false'''
If you do this, remember to set the preference back to true by double-clicking on it again when Firefox 4 release candidate is made available, the bug should be fixed by then. -
My macbook pro is 18 months old and has started running v slow. When I start it up it takes 5 minutes to load etc? Is there anything I can do to fix it?
try some suggestions from this article: http://www.maclife.com/article/feature/25_ways_speed_your_mac
-
USB drive randomly disconnects (and causes deep traversal in Time Machine)
I have two external drives connected through a USB hub and they get sometimes randomly disconnected. Sometimes when I plug the drives in, only one appears on the desktop. Then I unplug them, plug them back in and just the other drive appears.
The other problem is that I back up one of the drives to the other using Time Machine and when the drive disappears by itself, Time Machine needs to perform deep traversal of the whole drive AND backs up the whole drive from scratch (see the console log below).
Any suggestions are appreciated!
Thanks,
Peter
8/5/08 Aug 5, 7:20:33 PM /System/Library/CoreServices/backupd[27374] Node requires deep traversal:/Volumes/monster reason:kFSEDBEventFlagMustScanSubDirs|
8/5/08 Aug 5, 7:24:31 PM /System/Library/CoreServices/backupd[27374] Starting pre-backup thinning: 203.69 GB requested (including padding), 43.57 GB available
8/5/08 Aug 5, 7:24:31 PM /System/Library/CoreServices/backupd[27374] No expired backups exist - deleting oldest backups to make roomThe USB hub could have a problem (or not enough power); try connecting the drives directly to the Mac and see what happens. Is it a powered USB hub, and are the drives self-powered (i.e. each drive gets its own power from a wall socket/surge protector)?
-
It happens too much. I have 8gbs of Kingstom RAM installed. Is there a problem with Mavericks and Kingstom RAM?
This is the report i get after restarting:
Anonymous UUID: 0BAE1215-28B3-3F86-AA86-D3E08FC8B1AC
Mon Nov 18 00:23:03 2013
panic(cpu 0 caller 0xffffff7fa7d4b041): "AGC GPU REGISTER RESTORE FAILED : rdar://7254528, VendorID invalid"@/SourceCache/AppleGraphicsControl/AppleGraphicsControl-3.4.12/src/Appl eMuxControl/kext/AGCPowerManagement.cpp:1036
Backtrace (CPU 0), Frame : Return Address
0xffffff810ea23de0 : 0xffffff8026022f69
0xffffff810ea23e60 : 0xffffff7fa7d4b041
0xffffff810ea23ea0 : 0xffffff7fa7d4d668
0xffffff810ea23ec0 : 0xffffff80264b05fb
0xffffff810ea23f20 : 0xffffff802604a15a
0xffffff810ea23fb0 : 0xffffff80260d6aa7
Kernel Extensions in backtrace:
com.apple.driver.AppleMuxControl(3.4.12)[A4934A66-0E30-36E9-984A-650481102449]@ 0xffffff7fa7d40000->0xffffff7fa7d52fff
dependency: com.apple.driver.AppleGraphicsControl(3.4.12)[661E3C87-5B97-3272-88FF-B9BA9B6E2 4ED]@0xffffff7fa7d27000
dependency: com.apple.iokit.IOACPIFamily(1.4)[045D5D6F-AD1E-36DB-A249-A346E2B48E54]@0xfffff f7fa69fb000
dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7fa66ba000
dependency: com.apple.iokit.IOGraphicsFamily(2.3.6)[38E388A5-92D6-3388-B799-F2498E582287]@0 xffffff7fa6f31000
dependency: com.apple.driver.AppleBacklightExpert(1.0.4)[E04639C5-D734-3AB3-A682-FE66694C66 53]@0xffffff7fa7d3b000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
13A603
Kernel version:
Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT 2013; root:xnu-2422.1.72~6/RELEASE_X86_64
Kernel UUID: 1D9369E3-D0A5-31B6-8D16-BFFBBB390393
Kernel slide: 0x0000000025e00000
Kernel text base: 0xffffff8026000000
System model name: MacBookPro8,2 (Mac-94245A3940C91C80)
System uptime in nanoseconds: 638958040535
last loaded kext at 311440015536: com.apple.filesystems.smbfs 2.0.0 (addr 0xffffff7fa8608000, size 335872)
last unloaded kext at 318563611238: com.apple.filesystems.msdosfs 1.9 (addr 0xffffff7fa85fa000, size 57344)
loaded kexts:
com.apple.filesystems.smbfs 2.0.0
com.apple.filesystems.autofs 3.0
com.apple.driver.AudioAUUC 1.60
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.filesystems.ntfs 3.11
com.apple.driver.AGPM 100.14.11
com.apple.iokit.IOBluetoothSerialManager 4.2.0f6
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleUpstreamUserClient 3.5.13
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.driver.AppleMikeyDriver 2.5.2fc2
com.apple.kext.AMDFramebuffer 1.1.4
com.apple.driver.AppleIntelHD3000Graphics 8.1.8
com.apple.driver.AppleHDA 2.5.2fc2
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.AppleLPC 1.7.0
com.apple.AMDRadeonX3000 1.1.4
com.apple.driver.AppleSMCLMU 2.0.4d1
com.apple.driver.AppleMuxControl 3.4.12
com.apple.driver.AppleMCCSControl 1.1.12
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.0f6
com.apple.driver.SMCMotionSensor 3.0.4d1
com.apple.driver.AppleIntelSNBGraphicsFB 8.1.8
com.apple.kext.AMD6000Controller 1.1.4
com.apple.driver.AppleThunderboltIP 1.0.10
com.apple.driver.AppleUSBTCButtons 240.2
com.apple.driver.AppleUSBTCKeyboard 240.2
com.apple.driver.AppleIRController 325.7
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 35
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.4.0
com.apple.driver.AppleUSBHub 650.4.4
com.apple.driver.AppleSDXC 1.4.0
com.apple.iokit.AppleBCM5701Ethernet 3.6.9b9
com.apple.driver.AirPort.Brcm4331 700.20.22
com.apple.driver.AppleFWOHCI 4.9.9
com.apple.driver.AppleAHCIPort 2.9.5
com.apple.driver.AppleUSBEHCI 650.4.1
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleACPIButtons 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.0
com.apple.driver.AppleACPIEC 2.0
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 216.0.0
com.apple.nke.applicationfirewall 153
com.apple.security.quarantine 3
com.apple.driver.AppleIntelCPUPowerManagement 216.0.0
com.apple.kext.triggers 1.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.0
com.apple.iokit.IOSerialFamily 10.0.7
com.apple.iokit.IOSurface 91
com.apple.iokit.IOBluetoothFamily 4.2.0f6
com.apple.driver.DspFuncLib 2.5.2fc2
com.apple.vecLib.kext 1.0.0
com.apple.iokit.IOAudioFamily 1.9.4fc11
com.apple.kext.OSvKernDSPLib 1.14
com.apple.iokit.IOFireWireIP 2.2.5
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 5.5.1d27
com.apple.iokit.IOAcceleratorFamily 98.7.1
com.apple.driver.AppleBacklightExpert 1.0.4
com.apple.iokit.IONDRVSupport 2.3.6
com.apple.driver.AppleGraphicsControl 3.4.12
com.apple.driver.AppleSMBusController 1.0.11d1
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.2.0f6
com.apple.driver.AppleSMC 3.1.6d1
com.apple.driver.AppleHDAController 2.5.2fc2
com.apple.iokit.IOHDAFamily 2.5.2fc2
com.apple.kext.AMDSupport 1.1.4
com.apple.AppleGraphicsDeviceControl 3.4.12
com.apple.iokit.IOGraphicsFamily 2.3.6
com.apple.driver.AppleThunderboltDPInAdapter 2.5.0
com.apple.driver.AppleThunderboltDPAdapterFamily 2.5.0
com.apple.driver.AppleThunderboltPCIDownAdapter 1.4.0
com.apple.driver.AppleUSBMultitouch 240.6
com.apple.driver.AppleUSBMergeNub 650.4.0
com.apple.iokit.IOUSBHIDDriver 650.4.4
com.apple.driver.AppleUSBComposite 650.4.0
com.apple.driver.AppleThunderboltNHI 1.9.2
com.apple.iokit.IOThunderboltFamily 2.8.5
com.apple.iokit.IOUSBUserClient 650.4.4
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.driver.mDNSOffloadUserClient 1.0.1b4
com.apple.iokit.IO80211Family 600.34
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IOAHCIFamily 2.6.0
com.apple.iokit.IOUSBFamily 650.4.4
com.apple.driver.AppleEFINVRAM 2.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 278.10
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.AppleKeyStore 2
com.apple.driver.DiskImages 371.1
com.apple.iokit.IOStorageFamily 1.9
com.apple.iokit.IOReportFamily 21
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 2.0
com.apple.iokit.IOPCIFamily 2.8
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.pthread 1
com.apple.kec.corecrypto 1.0Hi. I'm not trying to rush things, you may have a different problem, but your issue looks quite familiar to me. I recently had a problem with the discrete graphics card (the Radeon GPU) due to overheating, all because a faulty application of the thermal compound in the factory.
In my case, the problem started slowly and intermittently, a few days after a gaming session (Quake 3) of about three hours (at the moment, I didn't realized that could be linked to the problem).
This issue is being actively discussed in another threads in this forum, but so far there's enough evidence that it's been causing similar problems for 2011 MBPs owners: screen corruption, black/blue screens, and in some cases, a total inability to boot. Some of the threads I'm talking about:
https://discussions.apple.com/message/13150366#13150366
https://discussions.apple.com/message/21110132#21110132
So far, and since the problem seems to affect only the discrete GPU (that's why you can boot in safe mode) a possible solution is to disable it by removing some extensions which prevent OS X from loading the Radeon drivers. This post describing the process (there are different files involved depending of your GPU version, so make sure you are moving the right ones):
https://discussions.apple.com/message/22521574#22521574
In the case your discrete GPU survived and is not permanently damaged, I personally had success by changing the thermal compound myself, which completely fixed the problem (at least for now). I've posted about it here:
https://discussions.apple.com/message/22630561#22630561
I hope you can find a solution, believe me I know the feeling when you see your expensive machine turning into a brick and it *****.
Good luck! -
I store ALL my photos (400 events) on an external 1T hard drive. The hard drive keeps disconnecting so it get a msg telling me I disconnected improperly basically which is a serious no no. I then have to re-start. I have tried connecting directly to the wall outlet, to a super duper surge protector and also have connected the usb (was on a usb port) directly to the computer. But it continues to happen a total nusance. What do I do?
I would first contact Seagate's tech support for a possible solution. If that doesn't prove successful then I would try a different product or consider building your own.
Basic Backup
Get an external drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
Carbon Copy Cloner
Data Backup
Deja Vu
Silver Keeper
Retrospect
Super Flexible File Synchronizer
SuperDuper!
Synchronize Pro! X
Synk Pro
Synk Standard
Tri-Backup
Visit The XLab FAQs and read the FAQ on backup and restore. Also read How to Back Up and Restore Your Files.
Although you can buy a complete external drive system, you can also put one together if you are so inclined. It's relatively easy and only requires a Phillips head screwdriver (typically.) You can purchase hard drives separately. This gives you an opportunity to shop for the best prices on a hard drive of your choice. Reliable brands include Seagate, Hitachi, Western Digital, Toshiba, and Fujitsu. You can find reviews and benchmarks on many drives at Storage Review.
Enclosures for FireWire and USB are readily available. You can find only FireWire enclosures, only USB enclosures, and enclosures that feature multiple ports. I would stress getting enclosures that use the Oxford chipsets especially for Firewire drives (911, 921, 922, for example.) You can find enclosures at places such as;
Cool Drives
OWC
WiebeTech
Firewire Direct
California Drives
NewEgg
All you need do is remove a case cover, mount the hard drive in the enclosure and connect the cables, then re-attach the case cover. Usually the only tool required is a small or medium Phillips screwdriver. -
I have a wireless network at home. I run my iphone and ipad on it with no problems. Just purchased a MacBook Pro, and now my wi-fi keeps disconnecting and i get an error message saying another device is using the same IP address. What does all this mean?
Hello AKCamus
To give you some ideas of what to do next, I have provided a few articles that will give some troubleshooting Wi-Fi connections and recommended Wi-Fi settings.
iOS and OS X: Recommended settings for Wi-Fi routers and access points
http://support.apple.com/kb/HT4199
iOS: Troubleshooting Wi-Fi networks and connections
http://support.apple.com/kb/ts1398
Troubleshooting Wi-Fi issues in OS X Lion and Mac OS X v10.6
http://support.apple.com/kb/HT4628
Thanks for using Apple Support Communities.
Regards,
-Norm G. -
USB Hard Drives Keep Disconnecting or Not Responding
Hi,
This is a long post - but one that I hope someone can offer advice on.
The Hardware
Mac Pro running OSX 10.8 (but this has happened on all versions of the OS i.e. 10.6/.7 etc)
3 x Internal SATA Hard Drives - All working perfectly.
External Drives:
2 x Western Digital My Book 1TB USB Hard Drives
1 x Seagate 750GB Hard Drive with USB2 connectivity
2 x IcyBox Dual Bay USB2 hard Drive enclosures using JMicron Chipsets - these enclosures have 2 x 1TB Western Digital Green in each (totaling 4 TB across the 2 enclosures).
D-Link 7 Port USB2 Hub
The Problem
- USB Hard Drives connected to the Mac are ejected from the system without notice and at random times AND/OR
- The external hard drive remains mounted, but when trying to write to the drive/partitions, Finder throws an error message up saying the operation cannot be completed - error code -50.
- Time Machine: TM will back up successfully several times, before eventually throwing an error up that it cannot create the folders required on the drive.
- The only way to be able to use the drives again is either remount the drive, or in some case, it is required to completely power the drive down and then reconnect.
Re-creating the problem
I have honestly not found a sure-fire way of replicating the problem. It seems completely random. It happens when I am actually sat at the computer, but it also happens when I am away from the computer.
In the past - my Time Machine hard drive has been one of the Western Digital MyBook drives. I also used the second MyBook for SuperDuper backups (extra redundancy). The 4TB drives in the IcyBox enclosures have been used to backup my ripped movie collection.
Recently however - I decided to have 2 of the 1TB drives in the IcyBox enclosures to be TM and SuperDuper backups. I have however reverted TM back to one of the Western Digital drives, purely for testing purposes. SuperDuper is backing up to one of the 1TB drives in the IcyBox.
I am trying various things to see if I can find the issue, but it is such a random event that it is taking ages to even come close to find a problem. Sometimes the drives will stay active for a few days, sometimes only a few hours, even minutes.
Theories
I have several theories as to why my USB drives continually disconnect.
1. The D-Link USB Hub.
Could connecting the drives through the hub be causing the problem? I don't really see how, unless it is a documented case that D-Link USB hubs do not play nice with OSX? To try and rule this out I have connected the current Time Machine back up drive (Western Digital MyBook) directly to the USB port on the back of the computer. The SuperDuper (IcyBox enclosure) drive is currently connected through the D-Link hub. I have removed all the other drives from the enclosures - so at present I have only 2 external drives connected (1 x 1TB Western Digital MyBook, 1 x 1TB Western Digital Green inside one of the IcyBox dual-bay enclosures - connected through D-Link Hub).
2. JMicron Chipset
I have done a bit of research on the internet and there are a few indications that perhaps JMicron SATA-to-USB controller chipsets found in a lot of external hard drive enclosures (including the dual bay IcyBox external enclosures that I have) do not play nice with OSX. If the JMicron chipsets in the 2 IcyBox enclosures is a problem - would that cause issues with other USB devices on the USB bus off the Mac? (i.e. can the JMicron chipset in the enclosures cause devices such as the WD MyBook drives which I assume use a non-JMicron chipset, to experience similar failures?)
3. Green Hard Drives
As I have said, I have 4 Western Digital Green 1TB hard drives inside the IcyBox Dual Bay Enclosures. Could the fact that these drives are 'Green' be causing a problem? They do go to sleep after x number of minutes, but they do wake up when required. But could on the occasion when I have problems, could this be caused by the 'Green' feature interrupting OSX in waking the drives? Coupled with JMicron chipset, could this be compounding the issue?
Possible Solutions
I am prepared to spend money on replacement drives and/or enclosures etc - but I would hate to spend x amount of money and have the same problem. So I am hoping to get some advice on what drives/enclosures are more than likely to work flawlessly with OSX.
Thanks for reading!FYI - re: the SuperDuper drive that is in one of the IcyBox enclosures.
I just opened this drive up in Finder. I heard the drive wake up, but when I came to copy a file over (tried various file sizes) - I got the error -50 message.
Here is the info from Console.
31/07/2012 23:35:52.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:52.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.000 kernel[0]: disk4s2: 0xe000c2e4 (UNDEFINED).
31/07/2012 23:35:53.320 fseventsd[55]: disk logger: failed to open output file /Volumes/Data 1/.fseventsd/0000000002478a7f (No such file or directory). mount point /Volumes/Data 1/.fseventsd
31/07/2012 23:35:53.320 fseventsd[55]: disk logger: failed to open output file /Volumes/Data 1/.fseventsd/0000000002478a7f (No such file or directory). mount point /Volumes/Data 1/.fseventsd
Also, while the drive was inaccessible, I tried 'Verify Disk' in Disk Utility - here are the results
Verifying volume “SuperDuper”
Checking file systemPerforming live verification.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Checking multi-linked files.
Checking catalog hierarchy.
Checking extended attributes file.
Invalid leaf record count
(It should be 2 instead of 1)
Checking volume bitmap.
Checking volume information.
The volume SuperDuper was found corrupt and needs to be repaired.
Error: This disk needs to be repaired. Click Repair Disk.
Please also note that the all my external hard drives have recently been reformated using GUID part. map and HFS Journaled. -
I have a Seagate Slim Portable 500 GB USB 3.0 external hard drive that worked great with my Macbook Pro 13" Retina but gets ejected and won't show files on any iMac. My Macbook Pro and the two different iMacs I tried it on were all using Mountain Lion, so the only difference was the iMac versus Macbook Pro.
I just tried this, no luck...
I connected a different USB cable, still the same problem. Tried both cables with the problematic hard drive on two different computers, still the same problem.
At this point I assume I'll probably need professional help in saving the files, thanks for the assistance. -
After a startup problem with my macbook pro i put it as slave and formatted the internal Hard drive. Now i want to install OS X Mavericks from USB
How can i do that?What did you "put as slave?" What Mac model do you have, exactly?
-
My MacBook Pro DVD drive keeps spinning and looking for a disc when there isn't one.
My MacBook Pro disc drive keeps spinning and looking for a disc when there isn't one in there. The DVD application is closed and as far as I can tell, the eject button is not stuck. I've restarted, but the problem persists. Please help!
Try these methods:
credit Kappy,
Ciao. -
How do I partition my MacBook Pro so I can keep Snow Leopard and also install Mountain Lion?
How do I partition my MacBook Pro so I can keep Snow Leopard and also install Mountain Lion?
I want to install the latest OS, but I already know that I will lose a lot of my software unless I can partition the hard drive and have two "bootable" drives.
How do I retain everything I have, partition the drive, then reloa the software I own according to which OS it will work under?msmedia wrote:
I do not currently own OS X ML.
I am currently running OS X (10.6.8 Snow Leopard) on my MacBook Pro. It has a 2.8GHz Intel Core 2 Duo Processor. I want to upgrade to Mountain Lion, but many of my software titles will not operate with ML and I cannot afford to replace some of them (Adobe Creative Suite, for e.g.)
After I back-up my HD and then partition the HD, how do I use the back-up to reinstall what I want to the SL partition, and then place the rest on the ML partition.
I have not done what you want to do, so can only offer some general thoughts in support. Take value from the following where you can. No guarantees.
If it was me, I would use a disk clone utility (e.g. Carbon Copy Cloner) to image the existing Snow Leopard disk to an external drive. Then verify that the external drive would boot and run Snow Leopard normally.
I would then purchase and download the Mountain Lion upgrade installer, but not run it. Use Lion Diskmaker to make a bootable USB stick, and perform a clean install of Mountain Lion, replacing the Snow Leopard on your MBP. This way, you make absolutely certain that no third-party drivers or other SL cruft remains to make Mountain Lion unstable. Update to latest ML point release. Fix permissions. Let TimeMachine make a full backup of your ML installation to a different external drive. Then turn of Time Machine.
In Disk Utility, use the + sign at the bottom of the ML partition to add another GUID, HFS+ Journaled partition for Snow Leopard. Resize to taste. Name it differently from your ML partition. Exhale.
Now ideally, you would like to reverse the external clone and put it back into the new SL partition. Then fix permissions. And demonstrate that you can boot into individually stable OS X installations. This would save you alot of work. Resist copying your home directory into ML just yet.
If you cannot successfully achieve the preceding paragraph, you will be faced with a full SL and application reinstall.
The ~/Library contents for SL and ML are sufficiently different that you do not want to mix them. You may want to salvage Safari bookmarks.plist. And, ML created folders in the home directory may have different permissions or ACL settings than in SL. So, my rule of thumb would be to copy folders that you created in SL, and only the contents of matching named OS created folders such as Music, Pictures, Downloads, etc.
For each operating system, you probably want the Time Machine settings to exclude the opposite OS X partition. If you use the same host name in Sharing prefs, then you will mix SL and ML backups on the same Time Machine back up drive. If you use different host names, they will be distinct folders in the Time Machine backups.backupdb and allow discrete restores per host. You may also want to gag Spotlight from indexing the opposite OS X partition. -
Back up drive keeps disconnecting
Hi,I have a MacBook running Snow Leopard and my back up drive keeps disconnecting, preventing Time Machine from backing up.
I've tried using disc utility to repair, but the drive drops out during the process. I have tried three different USB leads plus firewire to connect. Changing the leads makes no difference.
The hard drive is a LaCie 500GB with it's own power supply and it is not making unusual noises, the blue light is flickering as if it were working, but the computer just cannot see it.
Any help gratefully appreciated.That sounds like a problem with the drive, since you've tried different cables and USB/FireWire.
LaCie did have a "run" of bad power supplies, but as I recall, they quit working entirely, rather than the kind of thing you're seeing. One way to test them was to hold it to your ear, while powered -- if it makes a "squishing" noise (so one poster called it), it's defective.
But be sure the power connections are snug and secure, too, and that it's plugged-in to a known good outlet. Better, a good surge protector.
Check with LaCie; it's possible a new power supply will fix it, but you may need a new drive.
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