250gb Freecom External Drive not recognised

I have two 250gb Freecom External Drives. One works fine but the other is no longer being recognised. I have reset PMU and tried to see if the drive is recognised in Disk utility but disk utility simply hangs until i unplug the drive.
Help!

i have been experiencing the exact same problem with my external hard drive, except the brand is comstar. perhaps this is a general problem with mac os x and external HDs?

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Quubz external drive not recognised by Mac?

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I have a macbook air and was look for an external drive. I was told the qubz drives are compatible however when i connect it it doesn't seem to be recognised. The power is running through as the green light is on, but i cannot find it anywhere on my mac?
I know a few people have had similar problems - is there a solution to this?
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Did you format the drive with Disk Utility? Format external drives to Mac OS Extended before using with Aperture - Apple Support

External drive not recognised in Finder or Disk Utility on new Mini

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I've just bought a new Mac Mini and it won't recognise my Seagate Expansion drive in either Finder or Disk Utility. The drive is fully accessible on my old Macbook (running Snow Leopard), and ran fine on my old iMac running Mavericks. I've tried the troubleshooting tips in other threads - Seagate External Hard Drive does not work on Yosemite - but since they refer to people upgrading to Yosemite, I'm wondering if this might be down to the hardware in the latest Mini models? Any info or ideas on what to try next would be hugely appreciated!
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- Do other external USB drives work on your Mini?
- If you go to System Report (click on Apple icon in upper left and select About this Mac>More Info>System report) what shows for the drive under Hardware>USB? Yo should see the enclosure chip as well as the drive itself.
- Tr resetting the SMC and PRAM
- If you purchased the Mac within the last 90 days you still have free telephone support
Complimentary Support (USA)

Seagate external drive not recognised

I've had this external Seagate hard drive since I got the Mac itself - around 2 years ago. It's worked fine up to yesterday, when it started making horrible noises, and today when I switched on the Mac it told me 'the disk you inserted was not readable by this computer'. I've tried taking out & re-inserting the USB cable, but I fear something more serious has happened. I looked at another thread on this issue here, but it was full of very technical jargon, & photos someone had taken of the hard drive in pieces; I really don't feel competent to take my drive apart to find out what is wrong! I looked in 'Disk Utility', but I have a second Seagate drive which is the Time Machine back-up, so I'm not very sure which drive I am looking at in there. Everything was greyed out anyway, so I could not click on 'repair' or any of the other options. I would be grateful for any ideas or suggestions!

Thanks; I tried this, & the hard drive is 'seen' by Disk Utility, but not by Finder. See screenshot attached; it's the 'Go Flex' drive I've highlighted. However I can't actually do anything with it in Disk Utility, as all the options to 'verify', 'repair' etc are greyed out. NB: This is the same for the Time Machine back-up drive as well though; no options to do anything.
I contacted the Seagate support but I guess there's nothing much they can do if it's died. Yes I do have the files elsewhere; but mostly on DVD & very time-consuming to access. & if you're using a supposedly 'reliable' hard drive as your back-up disk then you don't expect it to suddenly collapse after just 2-3 years. This makes me worried about the Seagate drive I'm using as my main back-up!

External drive not recognised

Hi,
I'm trying to attach an old laptop hard drive via a SATA to USB cable, but it's not being recognised. Dmesg shows the output below, so it identifies that a new device is attached, but fdisk -l or lsusb don't know it's there. Not sure what to try next - any ideas?
usb 2-2: new high speed USB device using ehci_hcd and address 6
scsi7 : usb-storage 2-2:1.0
scsi 7:0:0:0: Direct-Access PQ: 0 ANSI: 2 CCS
sd 7:0:0:0: Attached scsi generic sg2 type 0
sd 7:0:0:0: [sdb] Attached SCSI disk
I'd have expected an error message or something to appear in dmesg. The drive should contain a single NTFS partition.
Thanks,
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Oops - just noticed this line in lsusb. I assume this means the connector I'm using isn't working?
Bus 002 Device 008: ID 152d:2338 JMicron Technology Corp. / JMicron USA Technology Corp. JM20337 Hi-Speed USB to SATA & PATA Combo Bridge

I have my Time Machine on an external drive (not connected to Airport Extreme) and I have an external HD attached to airport extreme. Is it possible to have Time Machine backUp computer HD AND external HD connected to Airport Extreme. How?

I have my Time Machine on an external drive (not connected to Airport Extreme) and I have an external HD attached to airport extreme. Is it possible to have Time Machine backUp computer HD AND external HD connected to Airport Extreme. How?

Is it possible to have Time Machine backUp computer HD AND external HD connected to Airport Extreme.
Sorry, but no.
Time Machine will backup your Mac, but not the hard drive attached to the AirPort Extreme.
Time Machine will back up a hard drive only if it is attached directly to your Mac via USB or FireWire.

USB External drive not showing in Finder, or on Desktop

I have two USB external drives from the same manufacturer. One is for regular storage, the second is for Time Machine and movies.
The first one shows everywhere, on the desktop, in finder and in Disk Utility.
The second drive shows in Disk Utility only. However, it is functioning fine with Time Machine. So it is mounted. I have tried several repairs, and it reports no fault found. So it is certainly functioning correctly, but a setting or error in the operating system is not allowing it to be viewed in finder, or on the desktop.
Any suggestions.

Correction: Title should be Firewire External drive not showing in Finder, or on Desktop.

Is their another way like to use my time capsule as an external drive not using time machine?thanks

is their another way like to use my time capsule as an external drive not using time machine?thanks

You do not have to use Time Machine.. but the TC is hardly suitable for a NAS.. it has no means to back itself up and is relatively slow. Still that is up to you..
CCC or Superduper are good backup softwares .. and there are a number of others.

External USB Hard Drive Not Recognised / Seen

Hi,
I have a WP 250 GB External hard drive which was working fine until recently and now is not recognised by my 2007 Intel Macbook. When I plug in the hard drive, a light comes on solidly and it begins whirring. Then, it continues to whirr as if it was going to work, but the light starts flickering.
It is not visable as an external hard drive in finder. 'View Hard Disk' is switched on under Finder / Preferences. On System Profiler, when I click 'USB' fom the list on the left, the computer displays the circular "thinking about it" spinning thing, and system profiler freezes, and nothing else happens. The same thing happens with disk utility.
I tried plugging the hard drive into a windows computer, and it worked fine; all the files inside it were visable. It is formatted to my mac and I have successfully used the hard drive many times before. A logical next step would be to try it on another mac but I don't have access to one.
I have tried to to a PRAM reset, but couldn't do it, even following the instructions on the MAC website (turn off computer, turn on and hold the mac button, ctrl, p, and r simultaneously) it wouldn't do a PRAM reset.
I am not a computer expert, but I am not completely green either. Why is it that doing the simplest thing on a computer requires a minimum of a 4 year computer science degree or equivalent.... somebody please help me crack this, I am close to smashing the whole thing to pieces with a hammer (which would be satisfying but counterproductive and expensive...)
Thanks in advance for your replies

Did you allow Windows to upgrade the formatting on this drive from FAT to NTFS recently? You should be able to check the formatting on the volume from within Windows. It would also be worth trying to repair the drive under Windows if it allows you to.
Note that NTFS is not readable under OS 10.4.x without special software. NTFS is read-only but not writable under OS 10.5 and later.
If the volume isn't NTFS, and repairing it doesn't help, you may need to just backup the data and try to reformat it.

External hard drive not recognised in start up options

Hi! I'm struggling to get to grips with creating a bootable external drive - any advice would be very welcome!
I've recently bought a LaCie Triple Interface 300GB external drive to use for backup storage and to use as a back up bootable drive should disaster strike. It's connected to my Mac via the FireWire 800 port.
I've backed up my documents and cloned system folders and apps using Intego Backup, but the drive is not recognised in the start up options of the system preferences, nor does it appear as a bootable drive when I option-restart.
Do I need to format and partition the drive before it will be recognised as a bootable drive? (I haven't done so) Or have I just cloned the wrong thing?! I'm not entirely sure what I need to clone to be able to boot and back up from it. Should I clone the entire HD?
Or does it sound like something else entirely?
Can anyone help??
1.8 GHz PowerPC G5 6.5MB RAM Mac OS X (10.2.x)

I'm not familar with Intego Backup. Get Carbon Copy Cloner and use it to clone your entire drive, user files and all.Be sure to check the "make bootable" box before you start the process. Could be that Intego isn't capable of making a drive bootable.

External Hard Drive not recognised after horrible crash and reformat.

There's yet another problem with my MBP.
First of all this happened: http://discussions.apple.com/thread.jspa?threadID=969838&tstart=0
Since I got it fixed I bought a 500GB Freecom external Hard-drive and used it to back up all my stuff. It was a case of plugging it into the USB port and it mounted on the desktop. I've had it for about a month.
I've only just got my MBP back from getting the keyboard replaced, then on Saturday night it crashed. And kept crashing. Then it wouldn't boot. Then it crashed when booting. Then it took me to a command prompt. I reset all the parameters laid out in the troubleshooting guide. I managed to boot in safe mode, but my Freecom drive wouldn't mount anymore. But it kept crashing and crashing. I finally managed to boot from the installation CD and I reformatted the drive and installed OS X (Tiger) afresh. But now my Freecom drive won't show up on the desktop at all!
I ran a Hard Ware test after the reformat, and the code 4MEM/2/40000000 came up, then again, 1FCA8574, then 41530574.
When I had the Freecom plugged in it would show in System profiler but not mounted on the desktop.
What is wrong? I am really annoyed because my Warranty ran out yesterday and I'm only after getting it back from Apple to get the keyboard replaced!
Please help!
(PS - I have Leopard on its way to me, would installing this help?)

(PS - I have Leopard on its way to me, would installing this help?)
Not likely with all the bugs and issues going on with it...

External hard drive not recognised in OS X Mavericks

For years I have used a Samsung HX 1Tb external hard drive under OSX Snow Leopard with absolutely no problem.
Since I upgraded to the free (improved?!?) OSX Mavericks my Macbook Pro cannot "see" my hard drive. All I get when I plug it in is the following message -
I've been told that this means my MacBook thinks that the hard drive is formatted for windows - but why should it work OK under SnowLeopard but not with Mavericks?
What can I do about it? I don't want to simply reformat the external drive because I'll lose all the files stored on it.
Is there suitable software/Apps that I can use to let my Mac access this external hard drive.
Incidentally my partners new Macbook Air can still read this hard drive.
?Puzzled?

NTFS with read/write is not supported on Mac OS - NTFS-3G it is actually a third party extension to adds read/write support for NTFS volumes. The OS never had this feature.
This used to be done with MacFUSE, but now the project for 10.9 is OSXFuse…
http://osxfuse.github.io
You should uninstall MacFUSE & then install OSXFuse…
https://code.google.com/p/macfuse/wiki/FAQ (see the uninstall notes).
You may also need to remove ntfs-3g and install the version for OSXFuse
https://github.com/osxfuse/osxfuse/wiki/NTFS-3G

Lacie external firewire hard drive not recognised

I have an intel iMac and I'm trying to use a "LaCie Big Disk with Triple Interface" on firewire 400 but it's like the OS doesn't see it, not even in Disk Utility. The drive is formatted properly and shows up just fine using USB. I plugged the external drive into an old powermac g4 on firewire 400 and it showed up fine there. I know the firewire ports work on my iMac are working because I put it in target disk mode and I could see it's files on my powermac over firewire 400. I tried swapping cables too, but no luck.
I was having this problem on 10.5.8 so I formatted and installed 10.6, but that didn't help. Does anyone know how to get this drive to work on firewire?

ChemBot01:
A guess. Could it be that your computer only works with Firewire 800 and not 400 but if you connected your computer to the external HD what I suggest shouldn't be the problem. The iMac I have only has 800 so I have to connect via USB whereas with the computer I had before had a 400 port but not this one. I can connect if I have a 400 to 800 connector. Anyway, just a thought.

External Drive not mounting anymore. HELP!

I was messing with permissions. I was trying to restrict others from using my external drive. I do know that I never removed myself. Now I see that my external LaCie 250GB drive will not mount. Both 'Disk Utility' and 'Disc Warrior' see and 'repair' the hard drive, but it still does NOT mount on the desktop. What can I do? Please help!
Robert
Dual 2.5 GHz G5 Mac OS X (10.4.3) 60GB Video iPod

I opened a 'Terminal' window and discovered that it appears I changed the owner. My username is bobbysteele. I changed it from 'admin' to my username (it's truncated - bobbyste). The permissions on the external drive are as follows:
d---rwx--- 16 bobbyste bobbyste 646 Jan 7 08:01 Jukebox01
It appears the permissions should be drwxr-xr-x because that is the setting for all other drives and folders. How can I change the permissions? Please help.

Hard drive not recognised....

Not being completely Apple savvy I may have dug my own rabbit warren here, however now being stuck up the creek without said paddle I could do with some sage help / advice.
Macbook refused to startup and asked me to keep on restarting, I managed to get into the disk utilities through the startup CD 1 and I tried to repair permissions and disk to no joy, quite possibly by selecting the HD itself rather than MACHD.
I decided to erase and re-install OS X however when I get to the relevant section of the install it is not giving me any options of a volume to install it to! I also have got into singleuser boot, the command prompt pages, and it states my root device is mounted read only. If I fsck the drive it again states my disk is (NO WRITE)
I assumed my hard drive need completely re-formatting but it is not recognised within the disk utility for me to erase...
Any help, advice, ideas (rather than me throwing it against the wall) will be very well received.
Jimmers

I still have the same opinion. Try to check with a new hard drive. As far as I can judge it, this even can be another external drive.
I had once a hard time to upgrade a MB Pro from Tiger to Leopard. The problem was a build in 4200rpm drive, which was way to slow to be recognized by the installer program or what ever. Even though the drive was looking good in the first run it was just not OK. I replaced the drive and - bingo.

250gb Freecom External Drive not recognised

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