Macbook Pro can't find my Mac OS partition

Hello,
My Macbook Pro recently received a software update. When I restarted it, it could not boot from my Mac OS partition. I unmounted and remounted the OS section...same issue.
When I tried to reinstall Mac OS to the partition, it could find the Mac OS partition, but the installation would not complete due to some sort of error. I repaired the partition, and got a message that everything looked OK, but trying to reinstall the OS again resulted in another failed message.
It will still not find the Mac OS partition as a bootable drive, but my Windows partition is fine.. I'm so confused as to what the issue is here, so hopefully someone can help me.
Thank you!

Hold the option key down while booting, see if OS X appears and select it to boot from, then reset the StartupDisk in System Preferences again.
If that doesn't work, I suspect a hosed GUID partiton table, backup what you can out of Windows to a external drive and disconnect.
Next read this to recover data out of your OS X parittion if you don't have a backup
Create a data recovery, undelete boot drive
Hold c or option boot off the installer disk and use Disk Utility to zero erase the entire drive and reinstall as follows
How to erase and install Snow Leopard 10.6
Learn about cloning
Most commonly used backup methods

Similar Messages

I am in an internet cafe and my macbook pro can't find the wireless network available here. I have used this network before. I have restarted my machine several times too. help please

I am in an internet cafe and my macbook pro can't find the wireless network available at the cafe. I have used this network before. I have restarted my machine several times too. help please

Change your router channel. Sometimes this is all you will have to do.
Power cycling the router. Read the router's user manual or contact their tech support for instructions.
System Preferences/Internet & Network/Network
Unlock the padlock
Locations: Automatic
Highlight Airport
Click the Assist Me button
In the popup window click the Diagnostic button.
System Preferences/Network- Unlock padlock. Highlight Airport. Network Name-select your name. Click on the Advanced button. Airport/Preferred Networks-delete all that is not your network.
Place a check mark next to "Remember networks this computer has joined." Click the OK button and lock the padlock. Restart your computer.
http://support.apple.com/kb/TS1920 Mac OS: How to release and renew a DHCP lease
No internet connection (wireless)
Check to see if an extra entry is present in the DNS Tab for your wireless connection (System Preferences/Network/Airport/Advanced/DNS).
Delete all extra entries that you find.
Place a check mark next to "Remember networks this computer has joined."
Other resources to check into:
http://www.netspotapp.comNetspot
How to diagnose and resolve Wi-Fi slow-downs
Pv6 troubleshooting
Mac OS X 10.6 Help: Solving problems with connecting to the Internet
What Affects Wireless Internet?
Solutions for connecting to the Internet, setting up a small network, and troubleshooting

My macbook pro can't "find" my disc (?!)

I've just got the sims 3 island paradise and I've inserted the disc my macbook pro can't "find it". It asks me to insert the disc for me to be able to play when it's already in!? Why? Please help!!

Call AppleCare (1-1800-APL-CARE) and give then the serial number. They will send you a new copy of the two disks for shippingand handling of $16 each (I think $16 each).

Macbook Pro can't find Wifi after closing

I moved house and got a new wifi provider. My Macbook Pro can't find it sometimes after I close my Macbook which forces me to restart for it to join the network automatically. SOMETIMES I get a popup window with networks that it picks up and SOMETIMES my network is listed and I can select that, but not all the time. Why cant my Macbook find my network sometimes? It can find everybody elses except mine!

Wi-FI connection drops
Wi-Fi Problems in OS X Yosemite
Wi-Fi Problems in OS X Yosemite (2)
Wireless Diagnostics
Also try turning off Bluetooth.
Troubleshooting Wi-Fi issues in OS X
Wireless Connection Problems - Fix
Wireless Connection Problems - Fix (2)
Wireless Connection Problems - Fix (3)
Wireless Connection Problems - Fix (4)

MacBook Pro can't find my NAS (My Book World)

I can't get my MacBook Pro to find my WD NAS (My Book World) on my home network. I have other devices that can find the NAS - Windows PCs and even an iTouch - so it is just my MacBook that can't find it.
Anybody got any suggestions?

Same problem here. Shows up on my PC latop but my Mac Mini can't find the WD MBW. On other forums Itunes updates is mentioned as a cause???
Anyone have a suggestion?
I have 1,5 TB movies and music so this is pretty frustrating

Macbook PRO can't find ANY Wifi network - only at home

Hi, i have a very strange problem with my *Macbook Pro*. I have 3 apple computers at home and one pc. On all machines Wifi works fine, except my new alu Macbook Pro. Important note is, when im with my macbook on other place, office, caffe, *Wifi works fine. But when im at home, this macbook simply can't find ANY network, it's blind.* Interesting thing is, all other computers are several years old and WiFi works fine on them. My friend also bought a brand new macbook pro, and this machine also couldn't fine any network at my home, or in other case when it found networks, it couldn't connect and recieve error message "Connection timed out". I noticed there is new Wifi network in our range, is it possible that this network can cause "blindness" on new macbooks?

*I have to say, I'm really glad you are trying to help guys.*
Well, router is almost on default settings, SSID is brodcasted and i'm not filtering MAC adresses. I tried changed channels, diffrent types of security or no security, no luck.
Guys, maybe i wrote it wrong, but this MacBook can't see ANY network. Around me there are 4-6 other networks which I'm able to see from other machines. So *problem is, this Macbook can't seen ANY network - not just mine.* BUT when i'm with this Macbook in office for example, or any other location, Wifi works....
And one more important thing, this happened suddenly. I was able few months ago to find any WiFi around me with this Macbook. No changes to router, no changes to mac. Problem is somwhere in the middle...try to focus on this: why i'm not able to see any of those cca 6 networks around me. I really think it has to do something with distorted signal and Wifi card used in new macbooks. It's really sick, because all other machines works perfectly (MB 07, MBP 06, PC, iPhone 3g)
I found a log on the router, and it's happening all the time:
+Sunday February 28, 2010 12:52:29 Unrecognized attempt blocked from 77.49.167.124:10179 to 82.119.105.172 UDP:51413+
+Sunday February 28, 2010 12:52:39 Unrecognized attempt blocked from 84.74.154.198:51104 to 82.119.105.172 UDP:51413+
+Sunday February 28, 2010 12:52:41 Unrecognized attempt blocked from 85.228.116.143:30977 to 82.119.105.172 UDP:51413+
+Sunday February 28, 2010 12:52:45 Unrecognized attempt blocked from 82.19.214.16:49713 to 82.119.105.172 UDP:51413+
+Sunday February 28, 2010 12:52:51 Unrecognized attempt blocked from 79.5.189.206:42386 to 82.119.105.172 UDP:51413+
+Sunday February 28, 2010 12:53:01 Unrecognized attempt blocked from 82.231.42.177:48944 to 82.119.105.172 UDP:51413+
+Sunday February 28, 2010 12:53:03 Unrecognized attempt blocked from 150.65.37.20:35339 to 82.119.105.172 UDP:51413+
+Sunday February 28, 2010 12:53:08 Unrecognized attempt blocked from 83.34.238.95:27314 to 82.119.105.172 TCP:38481+
+Sunday February 28, 2010 12:53:09 Unrecognized attempt blocked from 83.34.238.95:27314 to 82.119.105.172 TCP:38481+
+Sunday February 28, 2010 12:53:09 Unrecognized attempt blocked from 89.135.92.244:22231 to 82.119.105.172 UDP:51413+

Macbook Pro can't find my home wifi

I just got my battery replaced.. All my data disappeared. The worst thing is, I can't find my home wifi network but my neighbour wifi network is available. Pls help me fix this.
Mine is a MBP 2011.
Your help is much appreciated!

Hello, Sallyelainelee!
You may want to check the settings on your Router to make sure there isn't something in its configuration that's preventing the MacBook Pro from seeing it. If the MacBook Pro can connect to other WiFi networks OK, I would imagine that this would be the case.
iOS and OS X: Recommended settings for Wi-Fi routers and access points
http://support.apple.com/kb/HT4199
Best regards,
Allen

New Macbook Pro Can't See Other Macs

My Powerbook and iMac can see each other over the network and do file transfers, but my new Macbook Pro can't. The other computers show up in Bonjour Browser, but when I try to connect to them (either via their computer name, e.g. my-computer.local, or by ip) it can't. It tells me the address is wrong. It can't even ping them, and they can't ping it. It's weird because I can access both the internet and the router settings.

After I did that Airport stopped working. The menubar icon said "Airport not configured" and there were no network interfaces in System Preferences. So I tried just putting the airport prefs back, and restarting. The same thing happened, so I had to put the whole folder back where it was.

Macbook pro can´t find/connect to my hotspot

Dear experts!
I recently moved to a new place and got myself a T-Mobile HomeNet Router. Everything works fine (WiFi and Ethernet) with all devices (iPhone, iPad, iMac, Linux-machine...) EXCEPT my MacBook Pro (specs below in the product section) :-(
Ever since I moved the Macbook can´t find or connect to my home hotspot. Settings on the router are as follows:
- 802.1 b/g (it IS capable of b/g/n but I found a thread somewhere pointing out that this could be an issue)
- channel 13 (deactived auto-channel because my neighbours had overlapping channel settings...this was the only one that worked)
- rate auto
- frequency 2.4 GHz
- 30% signal strength (same reason as above)
- QoS activated
- SSID hidden (tried broadcasting it, made no difference)
- WPA2-PSK
- AES (TKIP and TKIP+AES available as well...but neither made any difference)
I can connect via ethernet, however that´s not the intended purpose of neither my notebook nor the router :-/ Someone suggested it might be an encryption issue but even without ANY encryption the hotspot won´t show up in the list. Password contains special characters but even my old iMac doesn´t seem to have problems with it. I tried connecting manually via "other network" without success. Also via Controlpanel -> Network -> Assist me ...
I´m sitting right next to my router so the signal strength can´t be the cause either (besides all other devices work just fine anywhere in my appartement). Restarted all devices, each one is up to date. Last thing I tried was making the changes in Firefox cause someone suggested it might be a bug in the router software, still no success.....I´m out of ideas.
Posted this in another Mac forum already but no one could help me :-( You guys are my last hope ... does anyone know this issue and how to solve it??
any ideas would be greatly appreciated!
many thanks in advance
tchintchie

nevermind...here´s what solved it for me:
https://discussions.apple.com/docs/DOC-3411

MacBook Pro Can't find home wireless network

I've been having some issues getting my macbook pro, running OS 10.7.5, to find my home wireless network. The network doesn't show up when it searches automatically, and when I type the network name in to find it manually, it says no network found. The computer connects to all other networks and finds then with no issues, and other MacBooks are able to find my home network and connect to it again with no issues.
The computer used to be able to find the network, and then it just stopped working. I have tried all the standard fixes, resetting the router, computer, PRAM, forgetting the network, deleting the key from keychain, but nothing seems to work. I tried googling the issue, but wasn't able to find a problem similar to the one I have.
Any advice would be greatly appreciated.
Thanks

Still having problems with this.
I have upgraded to Mavericks, hoping that the problem would be fixed, but it hasn't. I still get all networks completely disappearing - even if I search for them they are not found.
But I reboot the computer and it works! But when I am in OS or Bootcamp mode and put the Mac to sleep, it does not see the networks again! I have to reboot the computer for it to work.
I have even got a new router which can receive the b,g and n signals etc. as I was told by a Mac techie here that Macs 'look' for the n signal but can also work with the b and g signals and THAT maybe my old router only transmits b and g or something like that .
This, to me, sounds like a Mac software problem. I had a similar problem on a previous Mac on my "old router" and a totally different router in a different country's telephone system.
I now have the same problem with a new MBP on a new router!
Maz

Macbook pro can't find hard drive!

I'm using a 13" Macbook Pro on Lion OS and yesterday I was working on my thesis and I opened up Pinterest for what must have been thirty seconds before I was met with the pinwheel of death. I waited five minutes, and then I decided todo a manual shutdown. and then when I started it up again all I could see was a flashing folder with a question mark on it.
So i restarted it holding the option key, and my only option is the internet recovery. So I went there, and when I attempted to reinstall the Mac OS, I realized that it couldn't find my hard drive as a destination to download it. So I went to my local apple reseller store here in Norway and ofcourse they had no idea what to do withnit because they've never seen the problem before - they offered to help, but They would need to take it in for 2-4 weeks! and I don't think my exam period can handle that.
So i left it alone for a night. In the morning I tried to restart it, but the same thing Happened. what should I do? Is my poor hard drive dead?

It could be that your hard drive IS dead or it could be something as simple as a faulty SATA cable - hard to diagnose from a distance (and I'm quite surprised that an AASP would be baffled by something that MAY be something simple).
Since you didn't find the Lion Recovery partition when you booted up whilst holding the option key, I'm assuming that the drive is dead or that the SATA cable is bad.
Assume the drive is dead - the best thing that you can do is get a replacement hard drive, an external enclosure for your 'dead' drive and then use something like DiskWarrior to try to recover your most important data (which would be your thesis - and I'm assuming that you don't have a backup scheme in place?).
I'm not sure that you should take your machine back to the same reseller - are they an Apple Authorized Service Provider? Go here -> https://locate.apple.com/no/no/ - and see if there's an AASP near you. They should be able to actually diagnose the real problem, before you go through the agony of replacing your hard drive.
Good luck,
Clinton

Macbook Pro can't find Canon MG6350 via wifi

Macbook Pro purchased earlier this year and running OS X (10.9.1) can no longer find my new Canon MG6350 printer via wifi. Printer can also not be found by other new Macbook Pro, iPad Air or iPhones.
I have reset Canon printer, Macbook Pro printer system, downloaded latest drivers, tried inputing Canon printer IP address. Nothing works permanently. I temporary resolved issue by re-enabling Boujour on Canon printer settings, which magically allowed printer to appear on all devices, but this "fix" has now stopped working. Can also see all devices on BT Home Hub 3 when logged in as administrator.
I can print via USB, but want wifi printing to work. Very frustrated, as it worked brilliantly before latest OS X / iOS upgrades. Any suggestions or help appreciated.

Thank you for your interest Clinton.
Yes of course the printer connected to the wifi network. I can see all devices including the printer when logged on as Administrator on the BT Home Hub. I have also reset the Hub itself several times and reconnected all devices.
Note that I had no problem setting up the printer and all devices wirelessly on the network previously, and that this exact setup was working for months brilliantly and without issue until roughly the time I upgraded to the latest releases of OS and iOS on all my Apple devices.
I have also reset the printer to its factory setting several times, reconnected all devices to the network numerous times and have spent roughly four hours trying everything I can think of on both the printer and Mac to no avail. Hence my post. And yes all devices have the latest drivers as indicated by Apple and Canon.

MacBook Pro can't find AirPort Express base station

My friend gave me an AirPort Express and I've set it up as a base station before. But the other day it was having problems and I reset it. Since then I have not been able to set up a base station. When I try to set up a new base station through the AirPort Setup Assistant I get the message "The AirPort Setup Assistant was unable to find your base station." I have tried soft resets, hard resets, and even factory resets, but I can't get the base station set up. Any suggestions?
MacBook Pro Mac OS X (10.4.8)

I face a similar problem - the default name of the Airport Express is shown, Internet-Access works, but no way to administrate the Station - it is "not found", although it displays the name of it before. Frustration!

Macbook Pro can't find wifi

Hi, I just bought late 2011 Macbook Pro 13", and I have a problem with Wifi connect.
First of all, my Mac finds all neighboars wifi except mine.Also, I can connect to my wifi with my sisters Asus and my iphone. Can anyone help me to solve this problem?
(By the way, I'm new on Macs, so it would be great to explain step by step)

Good place to bookmark
http://www.apple.com/support/mac101/
see
http://support.apple.com/kb/HT2497

Macbook Pro can't find properly working Airport Express network

I have an Airport Express that's set up and working properly, and my Mac Mini and my iPhone both find the airport network, but not my MacBook Pro. The MacBook pro is even closer to the Express than the Mini is, and it finds many available airport networks (from the neighbors), but not my own network that the other units find without a problem - my own network just isn't listed among the others on the MacBook Pro, and Airport Utility on the MBP can't find the Express either. I've obviously tried restarting everything, as well as resetting the Express and setting it up again (which works just fine from the other two units), and I've tried creating a new user account on the MBP and check from there, but no go. The MBP runs the latest version of Snow Leopard and works just fine with other Airport Networks (at work, or one of the neighbors networks even), so it shouldn't be faulty hardware. At some point it's time for a Lion update for the MBP and then we'll see if it's some weird system software error that gets resolved in the process. But until that happens … what else could I try?
I'm thinking maybe this is some 802.11 b/g/n malfunction? The Express is an old g, the iPhone is g only, and the Mini is an old g as well, but the MacBook Pro is newer and supports n … but it should of course still be able to switch down to g and find the **** network (or the Express when running Airport Utility).
Anyone?

Well, I can't delete the wireless connection since it doesn't really exist (on the MacBook Pro). Had the Express in my office, but brought it home, and reset it there and created a new network using the Mac Mini, so the MacBook Pro had never been connected to that newly created airport network. But I did delete a lot of old saved connections, some of which were from when the Express was used in my office. This was however, before I read your reply here, so I didn't also erase the passwords from the keychain, however. But still no go; the MacBook just wouldn't list the new network among the available ones, or list the Express in the Airport Utility.
But then … last night, for no apparent reason whatsoever, suddenly everything just works.
In trying to wrap my head around this, and learning from it. Is it even possible for an old network used on an Airport device to interfere with a new network created by the same device? What I mean is, does the computer identify the airport by some sort of serial number or something, regardless of the network created by the airport? So that when a computer should be looking for a new and current network on an airport device it instead looks for an old network it has previously been connected to on that same airport device? Assuming the old network should still exist on that same device, and therefore skipping to look for a new network on the same device? I mean that would suck, but if that's the case then at least I'd know to always erase all traces of any old connections for a specific device in a case like this. ;-)
Thanks for your input!
Cheers!

Macbook Pro can't find my Mac OS partition

Similar Messages

Maybe you are looking for