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All replies
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Helpful answers
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Aug 21, 2014 1:41 AM in response to Rastiby Helge Schwarz,Which poves my point. A system shold work flawless directly after boot.
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Sep 7, 2014 10:36 AM in response to Helge Schwarzby kbhend,Hi,
Exact same problem today. My post is here: https://discussions.apple.com/thread/6453797 I am very glad I found this thread. I used the trick to boot into single user mode and disable fsck and then reboot (took about 10 minutes) and finally rebooted. BTW: both fsck and DiskUtility report absolutely no problems with my harddrive. Not sure what is going on but nothing in the logs seems to be helping.
Kevin
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Sep 20, 2014 7:28 AM in response to kbhendby Technobilder,I have absolutely the same problem with my MacBookPro here: MacBook Pro Retina Mid 2012 (MacBookPro10,1 NVIDIA GPU)
I bought this MBPro used over eBay and after I got it the seller checked it again and told me it was defect with a black screen.
He brought it to repair in germany and a new mainboard was installed - the MBPro run ok with OSX 10.8 as far I noticed.So I upgraded to 10.9.5 and install my system from a timemachine backup and now I have the same pci pause: sdxc error :-(
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Sep 21, 2014 11:50 PM in response to Helge Schwarzby HenkfromWinterswijk,Well Helga,
Sorry for my terrible English.
I have the same problem.
I have a Mac Mini i7 10 GByte ram.
I can work with no problem with my Mac. Day after day.
But when I reboot my Mac it stops with booting on the line.
Pci pause: SDXC
I tested everything, hardware test, memory test so the internal drive test.
the question is; is it a hardware problem or een software problem?
I don't now. !!!
Grusse aus Winterswijik die Niederlande.
Henk
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Sep 22, 2014 6:56 AM in response to HenkfromWinterswijkby kbhend,Hi,
I used "That Guys" solution from earlier in this thread and once I had it booting, no problems since. Here are the main points from That Guys post.
1. Enter the Single-user boot mode (cmd+s at launch)
2. Type those lines :
root# /sbin/mount -uw /
root# mv /sbin/fsck /sbin/fsck.off
root# cp /usr/bin/true /sbin/fsck3. Restart your computer, enter verbose mode (hold cmd+v)
4. Wait for it, it took 2 min to boot (instead of 1h of wasteful wait i had experienced), after being stuck at pci pause : sdxc
5. Now, you might consider putting fsck back.
And to put it back you do the following after everything boots properly.
root# cp /sbin/fsck.off /sbin/fsck
Since I have done this, no problems since. It took my computer about 20-25 minutes to finally boot in his step 4 not the 2 minutes he quoted. I did verify that the fsck run on the boot drive said everything was okay (or run DiskUtility). One other thing I changed was to put fresh batteries in my mouse and keyboard just in case low voltage was causing issues with my wireless mouse/keyboard causing flakey interrupts.
Please give "That Guys" solution a try as it worked for me and I have been rock solid since.
Hope this helps,
Kevin
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Oct 7, 2014 7:10 AM in response to kbhendby HenkfromWinterswijk,I've tried it!
Maybe I have made a typing error!
Example the spaces between the commands.
Well it didn't help. Again maybe type errors by me.
I will try it again the next time.
Thank you for the post
Regards.
Henk
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Nov 2, 2014 1:29 PM in response to HenkfromWinterswijkby David.Shaw,I also noticed a system problem with a 2012 Mac Mini, the boot into single user mode showed "Pci pause: SDXC"
as this was a new 'feature'/bug! to me I was able to reverse the most recent change that I made to my Mac mini, which was playing in the Energy Settings pane of Control panel (OS X Mavericks 10.9.5 Build 13F34) which I tend to think may be responsible for my problems?
I had recently set to 'Selected' Put hard disks to sleep when possible
'NOT Selected' Wake for network access
'Selected' Enable Power Nap
and I set Computer sleep: to Never
perhaps co-incidentally I then got quite annoying pauses/freezes of normal computer use & the "Pci pause: SDXC"
so I set everything power-saver back to
'NOT Selected' Put hard disks to sleep when possible
'NOT Selected' Wake for network access
'NOT Selected' Enable Power Nap
and I set Computer sleep: to 3hrs
and it is performing as it used to!
more hardware details Macmini6,1 , 2.5GHz Intel Core i5, 10GB 1600MHz DDR3, HDD Seagate Momentus 1TB hybrid (Model: ST1000LM014-1EJ164), Storage 2 x USB3 ext HDD MyBook 2TB (great) & MyBook 3TB (Don't buy this - it's encrypted/compressed drive - no longer readable without the original case)
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Nov 20, 2014 8:36 AM in response to Helge Schwarzby davidlea2000,This is a fix I have used:
1. Boot Mac in target disk mode
2. Connect to another Mac via Thunderbolt
3. Navigate to /System/Library/Caches and delete the "Startup" cache folder on afflicted Mac
4. Eject Mac HD in target disk mode and reboot the afflicted Mac
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Jan 19, 2015 6:59 AM in response to davidlea2000by Neilo,Many thanks David, I've had about 5 or 6 iMacs with this problem since upgrading my whole fleet to Yosemite. In most instances re-installing sys software worked, but 2 have failed to respond to that. Just tried your solution on one of those and bingo.
I think this will be an on-going issue for me. I haven't noticed any posts from Apple on it, so thanks for the fix.
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Apr 2, 2015 11:15 AM in response to kbhendby francoisbernard,Hello everyone !
It's such a shame Apple hosts a platform to discuss bugs, but seems to never have a look at it…
Anyways.
Thank you all for your efforts ! Could someone explain step by step the procedure to put fsck back ?
I tried the solution which starts with turning it off, but the solution didn't work. Before I move on to the next one, I wanted to be sure to start clean..
I don't understand command lines, so if we first did a "mv" (mv /sbin/fsck /sbin/fsck.off) is it ok to start directly with a "cp" (cp /sbin/fsck.off /sbin/fsck) ?
I'm gonna try the target mode solution, and let you know if it worked !
Thank you for your help
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Sep 15, 2016 5:10 AM in response to francoisbernardby alabin,boot into single-user mode
#mount the main boot-volume
/sbin/mount -uw /
#remove the dummy fsck-binary
rm /sbin/fsck
#rename the backup-fsck-binary back to fsck
root# mv /sbin/fsck.off /sbin/fsck