Firewire drive will not mount

Firewire drive will not mount USB mounts fine.

It's nearly impossible to offer any help given the dearth of information you provided.
What Mac are you using? What external FireWire hard drive are you trying to use? Is it a FW-400 or FW-800 interface? Have you tried any other FireWire device with that computer? Have you tried that FireWire drive with any other computer?

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Firewire drive will not mount on PowerBook

Firewire drive will not mount on PowerBooks
Posted: May 2, 2006 8:09 AM
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Hi All,
A friend of mine has a Titanium Powerbook G4 500's with 640mb ram and OS 10.2. She has purchased a Fantom Drive 120gb Firewire drive to back up her work. The drive will not mount on her machine. It will mount on my G5 running 10.3.9. I went to the Fantom Site, and all I could find was a link to Apple's site on Tiger.
She bought a set of Panther disks and wanted to back up all of her stuff before the upgrade.
Any help would be appreciated,
David

Thought you could use this info about getting FireWire to work!
First, you should always Repair Permissions in Disk Utility before and after any update; I would do that now. If you installed your update with FireWire plugged in, your Mac may not recognize it anymore.
Try resetting your FireWire ports by disconnecting all FW devices, shut down your Mac and unplug it from AC power (wall socket) for 30 minutes. plug it back in and try FW.
If that did'nt work, download the combo update from this site (yours may be corrupt), not Software Update, disconnect all firewire + USB devices except keyboard + mouse, Repair Permissions, re-install update, Repair Permissions again + try. Hers should be the 10.2.8 Combo update. Others reading, download the Combo that applies to your system.
If that still did'nt get it Zap the PRAM. While restarting Mac hold down the following key combo Command-Option-P-R. Keep holding those keys down till you hear the second start-up chime, then release.
For those of you with Macs that are not PowerBooks or iBooks, a bad internal battery can cause FireWire to not be recognized, so make sure it's good!
Good Luck!
Cheers!
DALE

Firewire drives will not mount

I have two Lacie firewire drives. 500g and 1ty. I left the studio two weeks ago and came back Started my G5 and either of the two will not mount or even be listed in Disk Utility. I have a lot of video files on these drive. Please someone help me.

It would be worth trying a reset of the SMU which, for your Mac, I think is by shutting down, disconnecting all peripherals, disconnecting the mains cable for 10 seconds and then reconnecting the mains cable while holding the power button down – followed by releasing the power button and giving it another short press to power up the Mac. See this Apple doc.
It's probably irrelevant, but you might as well also reset PRAM and NVRAM – by starting up with 4 keys held down: Command, Option, 'P' and 'R', and keeping those keys down until you hear the 3rd 'boing'. (Apple doc).
G5 2.1GHz Mac OS X (10.4.9)

OWC Mercury ext. drive will not mount via FW 800

Hi,
I just tried to hook up my OWC Mercury ext. drive to my new Mac Pro via FW 800 on the back panel and the drive will not mount. It does not show up using disk utility. Any suggestions would be greatly appreciated. Thanks, Mike

Try shutting everything down, and unplugging everything for 10-15 minutes.
Then, plug things back in in this order: the external drive firewire cable at both ends; the mac's keyboard and mouse, then the AC power for the mac and the external drive, and lastly, anything else you have hooked up.
Turn on the external drive first, then start up the mac and see if it shows up.

External Drives will not mount

Hi guys ... this is my first post in these forums, so sorry if it is in the wrong category.
I have a Mac Pro, purchased in Feb this year. I have an iOmega Ultramax firewire drive, that is partitioned into four disks.
I have had time machine running well, and it backs everything up onto a second iOmega drive I have.
Yesterday, before I left for work, I saw TM was sbusy backing up. The finder was not responding but I just left it, as didnt have time to loko into it before leaving.
When I cam home last night, I saw it was still not responding, and TM was still trying to backup. All other apps were functioning fine.
I tried to force quit Finder and TM, but it did not work. I then shut down the Mac manually, and rebooted.
The problem has now arisen, where the partitioned drives will not mount at all. The TM backup drive is fine, and I can browse TM fine with it - so good to know all my data is backed up.
I looked at the logs in console, and see the messages saying that the drive cannot mount as it is dirty?
What I have tried as troubleshooting steps:
•Disk Utility to try and mount the drives, but they are not showing up
•Connecting the drive to my Mac Mini - still nothing.
•DiskWarrior - nothing. Only my TM backup drive and Mac HD show up.
•Running FSCK from Terminal. I can see the drives in /dev, but keep getting "Bad Super block" errors. When I try looking for another Super Block, it says nothing found, and would I like to run it manually? The same happens when run in single user mode.
•Unplugging the Mac and the drives from the Mac, waiting 5 mins, resetting the NVRAM and PRAM (booting up holding CMDPR and waiting for the second chime, shutting down, plugging in and turing n drives, rebooting ... nothing!
It seems as though I have exhausted all possible options.
I now accept that the drive is unrecoverable, and am relieved that the TM backups are OK. I am thus happy to format the drive and repartition it, then restore everything from TM. Will be a fairly big job, but at least the data is backed up.
The only problem I have, is I cannot even mount the drives to format them!
Is there any safe way of doing this over the command line. Or even better, has anybody gt any other advice as to options I can try?
I hope I have been thorough enough in my explanation here.
Thanks in advance,
Dave

The only problem I have, is I cannot even mount the drives to format them!
I have a feeling that the partition map is bad. Does the drive itself report to DU? If the drive does show up, you can select that, and click the Repair Disk button under the First Aid tab. If that doesn't fix it, with the drive selected, click the partition tab and re-partition the drive. After that, I would erase the newly created volumes with 1-pass/zero out option selected and restore the data that was on the external from TM.
If none of this works or if the drive itself (not the volumes) doesn't show up in DU, you either have a bad drive or bad controller in the external case. How old is the Ultramax? Just wondering if it might still be under manufacturer's warranty. I would check to see if you are still eligible from the manufacturer's warranty and get the whole external unit replaced. If you are out of warranty, I think it likely that you need to replace that external with a new one. I've had a drive go bad in an external case (this one I could still mount but the heads would 'freeze') and the controller on another external go bad (this one, the drive would not report to DU so I took the drive out of the enclosure, stuck the drive in another case and there was no problem with the drive.)

After upgrading to Mountain Lion, my LaCie USB 3 drive will not mount

I just upgraded my OS to 10.8 and now my LaCie P'9230 USB 3.0 external drive will not mount. I have re-installed the USB driver and re-booted the computer and drive several times to no avail; any ideas/help?

mrfredmor_65 wrote:
I just upgraded my OS to 10.8 and now my LaCie P'9230 USB 3.0 external drive will not mount. I have re-installed the USB driver and re-booted the computer and drive several times to no avail; any ideas/help?
It's my understanding that LaCie hasn't released a Mountain Lion driver for their PCIe card yet. Sonnet uses a modified version of the LaCie driver and theirs is dead in the water too for that reason-they also warn that their driver won't work with 10.7.5 when it's released.
Indeed, yesterday I pulled the Sonnet USB 3.0 card from my Mac Pro and replaced it with a CalDigit card from OWC; CalDigit has separate drivers for 10.6, 10.7 and 10.8 and I can say that the card works with all three, the first time in 1.5 years that I've had a reliable USB 3.0 connection.

How do I repair a hard drive that was being written to while my MacBook Air crashed? (Drive will not mount)

My external backup drive will not mount. I have tried to mount it in Disk Utility via the app and the command prompt but the attempt times out. Any suggestions?
I backed up my HD the day before dropping off my Mac for repair, and then tried again just before going to my appointment. During this last and final backup my Macbook Air crashed. I have since discovered that the drive will no longer mount, likely due to the crash that occured during the last attempted backup. I am unsure if the drive can be repaired.
My logic board was short circuiting some where that controls the headphone jack. Initially this prevented me from using the jack but eventually caused my mac to crash several times before I brought it in for repair. I believe that it is the this crashing that is responsible for my back up not being accessible but that my data may still be intact.
Thanks for any help you may have!

If possible, attach it to another Mac and see if it is recognized in Disk Utility. If so, run Disk Utility>First Aid. If not, the HDD may be damaged.
Ciao.

Hard Drive will not Mount

I have a Seagate Barracuda 1.5 Gig installed in a MacPro as an additional drive and as of today the drive will not mount. Yersterday I noticed it ejected itself; I immediately rebooted and started to download the data to another drive but it ejected itself again after about 25% complete copy. I attempted to "verify drive" with Disk Utility but it was not listed. This morning it will will not mount. The drive is still under warranty so replacement is not an issue. Where I am at a loss is recovering the data. I fired up time machine and there was no data from this drive backed up (Bay 2). I checked the preferrences and the drive was not "excluded". So, I'm at a loss as to how or if I can recovery any data. I removed the drive from the MacPro and fired it up in a docking station (SATA) without results; still will not mount. Is recovering my data beyond hope? Any ideas or tips would be appreciated.
Thanks,
Koyangie

Hatter,
Tried Recovery Mode without success. Although the drive appears in Disk Utility I get an error after selecting Restore! If I click on the Image icon it will not list the contents.
There is perhaps .6 TB on this driver (images). After I posted and received yourt reply I took another look at my Time Machine and found all my data under Shared. What a relief.
Thanks for your advice. I'll return the drive to Seagate for a replacement. Hopefull I will be able to format it before sending it back.
Koyangie

External Hard Drive will not mount after upgrading to Yosemite

After upgrading to Yosemite, my external 3TB hard drive will not mount... can't see in Finder, but does appear in Disk Utility. Follow steps to Repair disk, but get a message that D.U. cannot repair disk.

See mount section.
Disk Unmount Using Terminal
Disk Utility – Force Mount Disk

External drives will not mount if wi-fi is on

I was really unsure where to post this. If you think it should be in a different thread then let me know.
My problem is this. I have a Macbook that I use at home no problem. I teach at a college where there is a wi-fi connection that my Macbook automatically connects to. Recently, I have discovered that any external drives will not mount until I switch the wi-fi off. Additionally, almost everything I try and do causes the spinning beachball for 10 minutes or more at a time.
I have searched the net and cannot seem to find any reference to this problem anywhere else. Any ideas at all why this might be happening will be much appreciated.

It was not until Mac OS X 10.6.4, not possible to run on a 10.2 machine, that ExFat was supported.
Many older Macs also will not recognize GUID formatted partitions made to boot Intel Macs either.
10.2.3 is the first system to support Apple Partition Map HFS Extended (Jornalled).
There may be NTFS support based on my tip here:
https://discussions.apple.com/docs/DOC-3003

External drives will not mount if the wi-fi is on!

I have had no replies where I had previously posted so I thought I would try here as I think that it is mainly an Airport problem.
My problem is this. I have a Macbook that I use at home no problem. I teach at a college where there is are two wi-fi connections that my Macbook automatically connects to depending on where I am in the department. Recently almost everything I try and do causes the spinning beachball for 10 minutes or much more at a time. Additionally, I have discovered that any external drives will not mount on my laptop, unless I switch the wi-fi off! No-one else is having any problems at all.
One of the wi-fi connections is an Airport Extreme. Each morning my laptop gets the message that there is a problem and I need to update the firmware to 7.5.2. (I originally set the Airport up through my laptop) I am very wary of doing this as everything is working fine for the other 20+ laptops in the department and I have read lots of reports of problems with this update.
I suppose my questions are these - 1 Does anyone have any idea what is going on with my laptop? 2 What should I try doing to solve this issue?
I have searched the net and cannot seem to find any reference to this problem anywhere else. Any ideas at all why this might be happening will be much appreciated.

It was not until Mac OS X 10.6.4, not possible to run on a 10.2 machine, that ExFat was supported.
Many older Macs also will not recognize GUID formatted partitions made to boot Intel Macs either.
10.2.3 is the first system to support Apple Partition Map HFS Extended (Jornalled).
There may be NTFS support based on my tip here:
https://discussions.apple.com/docs/DOC-3003

10.9.1, decrypted G-Drive will not mount

I encrypted a 4tb G-Drive and later decrypted it. Now the drive will not mount. It does appear in disk utility but not in the finder or the desktop. To troubleshoot I rebooted the Mac and the drive (and I powered both completely down), I tried a different usb port (but since it appears in Disk Utility I didn't think doing this would matter). In Disk Utility the drive shows 16mb free (I have less than 1tb data loaded to the drive).

Solved my problem - no help needed - and I feel kinda dumb.
In Disk Utility the drive was greyed out. I simply right clicked on it and there was an option to unlock the drive. I clicked on unlock and was prompted for the drive password - entered password and the drive is now on the desktop and in the finder. Problem solved.

External Hard drive will not mount on desktop

I have a 17" Powerbook G4 that has replaced a broken iBook G4. I've been using a Western Digital MyBook Pro Edition as a secondary drive for my multimedia as well as my iTunes Library. It worked fine on the old iBook.
When I plug it into the Powerbook, using either USB2 or Firewire 800, it will not mount to the desktop. It DOES however appear in the System Profiler as "External HD Button and Lights". The drive is formatted for FAT32 and works fine on my Windows XP desktop machine, so I know the drive functions mechanically. A different hard drive, a Maxtor mounts to the desktop fine using USB2, so it isn't a bus issue.
This is driving me nuts. I LOVE this computer, but I have WAY more invested in music than the cost of the computer.
Thanks in advance.
Message was edited by: hempomatic

It took a while to figure it out but apparently there was a conflict with bluetooth. I disabled it and all is well.

Hard drive will not mount shows up in Disk Utility

I have an external drive with a bootable OS X 10.6.8. I was in a transition between building up a SSD swapped drive. The SSD is installed in the CPU box but I have my old installation running from an external.
I have several external hard drives. They are all Firewire. Some have USB 3.0 and or eSATA options but my MacMini only talks to Firewire and USB 2.0.
I understand that you daisy chain Firewire drives and turn them on and off in sequence as they fall from the CPU box/case.
Firewire is a power source. I run the external with the OS using an AC adapter but one Firewire drive is powered through Firewire.
I have had as many as 4 external drives running along with the internal drive without a glitch while I was reorganizing files.
Today I booted off the external drive. It was running fine. I turned on one Firewire drive (the one that runs on Firewire power). That drive stumbled. I recognized the sound when there is an interruption in power. This cause the external boot drive to stall. I had to force a reboot.
Now the external boot drive will not boot up. It does not mount but Disk Utility sees it. The drive itself is bright and clear in Disk Utility but the partition (single) is faded out. I can run Verify and repair in DU. DU says it doesn't see anything to repair. It will not mount on its own or when I click the Mount button in DU. It does not produce an icon on the Desktop (because it is not mounting).
I also have SpeedTools. But although it sees the drive I cannot do anything with it. None of its tools run more than a spli second before they fail.
This drive has USB 3.0 and I see everything through USB that I see through Firewire. Connecting the other way did not get around the problem.
Of course I will buy an AC adapter for every external drive and never run them using Firewire again but the horse is out of the barn.
I have the original installation disks and could run the Archive and Install option but it would require physically swapping drives with the internal. I'd like to avoid it if possible. It is a MacMini and tedious.
Any suggestions?

I took the problematic hard drive and installed it in my Mac Mini so I could attempt a Safe Boot and then Archive and Install if necessary.
Safe Mode didn't work. The drive produced the circle with a slash symbol.
I reset the PRAM which was part of a list of steps to work through I found created by Apple Support.
I was able to boot up to Verbose Mode and view the text of the boot process. I wrote it all down. I can answer questions about the content better than typing it all out exactly. It includes, "...journal magic is bad..." "...failed to open..." and ends with "...cannot mount root, errno = 19"
I attempted Archive and Install however when it went to show what target drives were available it was a blank box and all buttons were grayed out.
I rebooted and opened Disk Utility from the DVD. The drive appeared the same with the top main line bright and the partitioned volume faded. Still was unable to mount. I ran Verify and this time a red line of text appeared "Invalid content in Journal" and at the end I ran Repair. When running I could read line by line and at one point it showed "checking volume information" then the following line "Repairing volume" the following line "Rechecking volume" more line of checking then it ended with "The volume was repaired successfully."
It still would not mount. I ran Verify again and again said "Invalid content in Journal" and this time it stopped midway saying "The volume was found corrupt and needs to be repaired. Error: This disk needs to be repaired. Click Repair Disk."
I clicked Repair and it ended with The vol. was repaired successfully."
Still unable to mount I began repeating Repair over and over. Each time it found something to repair and ended with a success message. After several more Repairs I tried Verify and it stopped midway saying to Repair the disk.
Question: Does running Repair multiple times continue to correct bits and pieces little by little or is this a generic message and we should treat it as a problem Disk Utility cannot pinpoint and is just beating its head against the wall?
The step by step instructions I downloaded mentioned running Repair more than once but it did not say that running it 20 times would erode some problems and eventually lead to a fully repaired disk (if the problem was something DU could take care of in the first place). At this point I have run Repair about 20 times total with a series of 10 back to back skipping Verify. I keep seeing the lines about invalid content in a journal and that it repaired something successfully. Yet I still cannot mount the disk.

External Firewire drive does not mount on desktop now.

Greetings everyone.
G5 dual, 4.6GB ram, OSX 10.4.10, external firewire drive, formerly worked fine, now is invisible.
Not the drive. New purchase, worked fine until a restart. Not the cable. Power is getting from the G5 to the firewire drive. Not the port. I also have a firewire card instlaled so I have three ports to connect it to (and two on the FW drive). No combination works. Not the computer, the FW drive also fails to appear on an iBook. Not the OS. I did a clean install to make sure.
I'm not a newbie. I know what I'm doing. Until now! DiskWarrior, TechTool Pro, Drive Genius and Apple's Disk Utility cannot see the drive.
The FW drive is a Powerbook internal HD inserted into a case, purchased seperately.
At my wits' end. Can anyone help please.

I am suddenly having this EXACT problem. I have two Firelite firewire drives (one 60G and one 80G) that are suddenly refusing to mount on my older dual 1.25GHz G4 tower. They are also suddenly refusing to mount on my non-intel iMac. They will both mount painlessly on my new Intel MacBook Pro, but that's not much use, since the point of the firewire drives is to transfer files between these computers. I'm updating all of them to 10.4.10 to see if that's the issue...

Firewire drive will not mount

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