Firewire Drives No Longer Appear

All of my firewire drives have dissapeared from the desktop. This is what I have tried:
1) repaired permissions
2) unplugged drives, restarted, plugged drives back in
3) switched firewire ports
4) connected drives to my laptop - they appeared on the laptop
5) switched users
6) tried to locate drives with Disk Utility
7) put two different sets of commands into Terminal to show devices
Nothing shows up. Interesting note: an audio popping noise that I have had off and on, and could be temporarly stopped by switching users, is now completely gone. No pops but no drives.
What else can I try? Could the firewire card just be bad?
Thanks,
Nathan

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. Yours is the 10.3.9 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!
Cheers!
DALE

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I have a MacBook Pro, 10.10.2 Yosemite. My external hard drive no longer appears on my screen or in Time Machine. I have gone into Disc Utility to repair disc, and get the message: Error: Partition map check failed because no slices were found. I was trying to follow Melophage's instructions by going into "Terminal" and entering "diskutil list; diskutil cs list; mount" and "diskutil info disk2." Then I entered the command "sudo got show disk1."   I am sure I have made the problem worse. Can you give me some help? Thank you. blelambert
Last login: Wed Mar 11 19:23:03 on ttys000
~ belambert$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *251.0 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         250.1 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *249.8 GB   disk1
                                 Logical Volume on disk0s2
                                 7A998EAE-68FB-4BAC-BF40-7A31D2806B2C
                                 Unlocked Encrypted
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *2.0 TB     disk2
   1:         Microsoft Reserved                         134.2 MB   disk2s1
~ belambert$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 883A56F4-5559-4872-A8DA-960F99655B63
    =========================================================
    Name:         Macintosh HD
Status:       Online
    Size:         250140434432 B (250.1 GB)
    Free Space:   8921088 B (8.9 MB)
    |
    +-< Physical Volume 7EDAFA20-FF9A-45FB-BA44-6526BB46C381
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     250140434432 B (250.1 GB)
    |
    +-> Logical Volume Family B47B0B40-CBF2-4D02-BFEF-182061AC6F8E
        Encryption Status:       Unlocked
        Encryption Type:         AES-XTS
        Conversion Status:       Complete
        Conversion Direction:    -none-
        Has Encrypted Extents:   Yes
        Fully Secure:            Yes
        Passphrase Required:     Yes
        |
        +-> Logical Volume 7A998EAE-68FB-4BAC-BF40-7A31D2806B2C
            Disk:                  disk1
            Status:                Online
            Size (Total):          249779191808 B (249.8 GB)
            Conversion Progress:   -none-
            Revertible:            Yes (unlock and decryption required)
            LV Name:               Macintosh HD
            Volume Name:           Macintosh HD
            Content Hint:          Apple_HFS
~ belambert$ mount
/dev/disk1 on / (hfs, local, journaled)
devfs on /dev (devfs, local, nobrowse)
map -hosts on /net (autofs, nosuid, automounted, nobrowse)
map auto_home on /home (autofs, automounted, nobrowse)
localhost:/vB3z604U-dvSpES6320fHq on /Volumes/MobileBackups (mtmfs, nosuid, read-only, nobrowse)
~ belambert$ diskutil info disk2
   Device Identifier:        disk2
   Device Node:              /dev/disk2
   Part of Whole:            disk2
   Device / Media Name:      WD My Book 111A Media
File System:              None
   Content (IOContent):      GUID_partition_scheme
   OS Can Be Installed:      No
   Media Type:               Generic
   Protocol:                 USB
   SMART Status:             Not Supported
   Total Size:               2.0 TB (2000365289472 Bytes) (exactly 3906963456 512-Byte-Units)
   Volume Free Space:        Not applicable (no file system)
   Device Block Size:        512 Bytes
   Read-Only Media:          No
   Read-Only Volume:         Not applicable (no file system)
   Ejectable:                Yes
File System:              None
   Content (IOContent):      GUID_partition_scheme
   OS Can Be Installed:      No
   Media Type:               Generic
   Protocol:                 USB
   SMART Status:             Not Supported
   Total Size:               2.0 TB (2000365289472 Bytes) (exactly 3906963456 512-Byte-Units)
   Volume Free Space:        Not applicable (no file system)
   Device Block Size:        512 Bytes
   Read-Only Media:          No
   Read-Only Volume:         Not applicable (no file system)
   Ejectable:                Yes
belambert ttys000                   Wed Mar 11 17:34 - 17:39 (00:05)
belambert ttys000                   Wed Mar 11 17:33 - 17:34 (00:00)
wtmp begins Sun Mar 8 14:40
~ belambert$ ~ belambert$ diskutil list
-bash: :~: command not found
~ belambert$ /dev/disk0
-bash: /dev/disk0: Permission denied
:~ belambert$    #:                       TYPE NAME                    SIZE       IDENTIFIER
~ belambert$    0:      GUID_partition_scheme                        *251.0 GB   disk0
-bash: 0:: command not found
:~ belambert$    1:                        EFI EFI                     209.7 MB   disk0s1
-bash: 1:: command not found
~ belambert$    2:          Apple_CoreStorage                         250.1 GB   disk0s2
-bash: 2:: command not found
~ belambert$    3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
-bash: /dev/disk1: Permission denied
~ belambert$    #:                       TYPE NAME                    SIZE       IDENTIFIER
~ belambert$    0:                  Apple_HFS Macintosh HD           *249.8 GB   disk1
-bash: 0:: command not found
~ belambert$                                  Logical Volume on disk0s2
-bash: Logical: command not found
~ belambert$                                  7A998EAE-68FB-4BAC-BF40-7A31D2806B2C
-bash: 7A998EAE-68FB-4BAC-BF40-7A31D2806B2C: command not found
~ belambert$                                  Unlocked Encrypted
-bash: Unlocked: command not found
:~ belambert$ /dev/disk2
-bash: /dev/disk2: Permission denied
~ belambert$    #:                       TYPE NAME                    SIZE       IDENTIFIER
:~ belambert$    0:      GUID_partition_scheme                        *2.0 TB     disk2
-bash: 0:: command not found
~ belambert$    1:         Microsoft Reserved                         134.2 MB   disk2s1
-bash: 1:: command not found
~ belambert$ ~ belambert$ diskutil cs list
-bash: ~: command not found
~ belambert$ CoreStorage logical volume groups (1 found)
-bash: syntax error near unexpected token `('
~ belambert$ |
-bash: syntax error near unexpected token `|'
~ belambert$ +-- Logical Volume Group 883A56F4-5559-4872-A8DA-960F99655B63
-bash: +--: command not found
~ belambert$     =========================================================
-bash: =========================================================: command not found
~ belambert$     Name:         Macintosh HD
-bash: Name:: command not found
~ belambert$
-bash: 3:: command not found
~ belambert$ /dev/disk1
   Whole:                    Yes
   Internal:                 No
   OS 9 Drivers:             No
   Low Level Format:         Not supported
:~ belambert$ Last login: Wed Mar 11 19:23:03 on ttys000
~ belambert$ diskutil list
   Whole:                    Yes
   Internal:                 No
   OS 9 Drivers:             No
   Low Level Format:         Not supported
~ belambert$ Last login: Wed Mar 11 19:23:03 on ttys000
~ belambert$ diskutil list
   Volume Name:              Not applicable (no file system)
   Mounted:                  Not applicable (no file system)

racergirl,
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Message was edited by: slverice

I had this problem too with my G5 (PPC) and brand new Mac Book.
Both of my computers were given the same local subnet address. To change this go to System Preferences > Sharing > Computer Name, you'll see an "Edit" button, click on it and change the name or add a "2" to the end of the name before ".local"
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Hello Souploops,
I would also be concerned if my external drive was not appearing after the software update. I found two articles that have steps to help troubleshoot connection issues with Thunderbolt devices:
OS X Mountain Lion: If a Thunderbolt device isn’t working
http://support.apple.com/kb/PH11408
OS X Mountain Lion: Check your device’s Thunderbolt connection
http://support.apple.com/kb/PH11409
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All the best,
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This procedure is a diagnostic test. It makes no changes to your data.
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diskutil list | pbcopy
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the built-in Terminal application in any of the following ways:
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☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window by pressing the key combination command-V. I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting.
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The Terminal window doesn't show the output. Please don't copy anything from there.
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Firewire Drive no longer mounting

Hi, I've been using a Western Digital Firewire External My Book drive for time machine for awhile now, but it suddenly will not mount anymore. I have 2 others that I use for other stuff that still mount fine though.
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I don't have a copy of disk warrior so I can't try that.
Any help would be appreciated,
thanks!!
Jeff

The only internationally available Firewire hard drive cases I've never had to put a firmware update on or change cables from are from http://www.macsales.com/ You can remove the hard drive from the external case from Western Digital, determine if it is Parallel ATA or SATA hard drive, and get the appropriate firewire hard drive case from http://www.macsales.com/ to read that kind of drive. After which time, it should work great. Other companies seem to require firmware updates from time to time, but not http://www.macsales.com/ Can't explain why.

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Does it have its own power supply? Try a
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
The 5 second timing is important to a successful reset.

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Not that it should matter, but the external hard drive that's fallen out of grace suddenly is a Maxtor 500 gig external.
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since the drives are external, connect them to a Mac and run diskutility on them and check for errors using first aid....my guess is that you have volume problems preventing the disks from mounting in the extreme. the extreme does not do error checking and does not have a way of ejecting hard drives. I'm not sure about the TC.

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This question was solved.
View Solution.

Hello @weatherdoc,
I understand that your HP Pavillion Slimline 400-034 Desktop PC does not detect your Optical Drive and when you tried the HP Support document: CD/DVD Drive Is Not Detected (Windows 8) and when you get to the step that requires you to enter the BIO tapping F10 when the computer first begins to start up will not open the BIOS as it should. Please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region. http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html.
I would like to thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

My iMac (late 2006) no longer boots from FireWire drives, although they contain all the system files.

My iMac (late 2006) no longer starts (boots) from Firewire drives, although they all contain a current system (Mac OS X 10.6.7). If the drives are connected with USB 2, they boot normally. The FireWire drives appear in the Start Volume program, but they do not boot. If I press and hold the Alt key while booting, only the internal drives and the USB drives appear as options. What can I do in order to boot from FireWire drives as I always could in the past?

I'd first recommend doing a SMC reset and if that doesn't work refer to:
http://reviews.cnet.com/8301-13727_7-10333969-263.html
and
http://www.thexlab.com/faqs/firewiretroubleshooting.html
SMC RESET
Shut down the computer.
Unplug the computer's power cord and all peripherals.
Press and hold the power button for 5 seconds.
Release the power button.
Attach the computers power cable.
Press the power button to turn on the computer.
PRAM RESET
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
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Hold the keys down until the computer restarts and you hear the startup sound for the second time.
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Roger

My hard drive is no longer appearing

I just had a new hard drive installed in my mac book pro but now the Hard drive icon no longer appears in the top right corner, also when i insert a usb drive thay also do not appear. if i go to disk utility they are there and they are mounted but they are still not showing on my desk top.
Is there a function in need to turn on for these to appear.
Thanks
Adam

With Finder active, go to Finder Preferences (in the Finder menu) > General; in that screen, checkmark the items near the top for "Hard disks" and "Externa; disks". This should make them appear on the desktop, upper right side.
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Firewire Drives No Longer Appear

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