Re-mounting Ejected Drives and Flash Memory

After using an external drive (both Firewire and USB,) I often eject it to be sure that I do not unintentionally work with directories and files stored on it. To use the device again, I disconnect and reconnect to cause it to be mounted.
Can I re-mount the device with a script or UNIX command? Or some other method which does not require physical action? Advice on how to do this would be greatly appreciated.

Hello Kenichi.Thanks for your reply.
If I eject the disk then it is no longer seen by Disk Utility and thus an external interrupt (power, unplug etc.,) is necessary to reconnect the device and mount the volume(s.)
I now understand that I sould be un-mounting the volume, not ejecting the device to accomplish my requirement of making it's filesystems unavailable.
As you point out mounting a volume can be done with Disk Utility. I was hoping to it with a script or Automator workflow. There are no Automator actions to do this and Disk Utility does not have a scripting dictionary so it looks like I'll have to dig out the UNIX manuals to do this.
Further advice is always welcome.

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HI, I HAVE A MacBook Pro 2.3GHz dual-core Intel i5 AND I WAN'T TO UPGRADE THE HARD DRIVE UP TO 750GB AND ALSO THE RAM MEMORY TO 8GB. WHAT SPECIFIC MODEL OF HARD DRIVE AND RAM MEMORY SHOULD I BUY??? THANKS

HI, I HAVE A MacBook Pro 2.3GHz dual-core Intel i5 AND I WAN'T TO UPGRADE THE HARD DRIVE UP TO 750GB AND ALSO THE RAM MEMORY TO 8GB. WHAT SPECIFIC MODEL OF HARD DRIVE AND RAM MEMORY SHOULD I BUY??? THANKS

No need to type in all caps - we HEAR you!
I would take a look at the internal drives offered by both Crucial (click the link "Internal Hard Drives Now Available") and OWC. I would stay away from Western Digital drives as they seem to have problems on a number of Mac models.
You can also shop for RAM at Crucial and OWC - just select the System Scanner tab at the Crucial website to find out which memory is right for your machine.
Good luck,
Clinton

Wanting to upgrade Sawtooth 400 with new hard drive and more memory

Have been reading a lot of posts today on the above upgrades. Am quickly getting confused on all of the info, especially on the hard drive upgrades...
Purchased my Sawtooth back in Dec. 2006 on eBay. Should have been using it all of this time, but my budget wouldn't allow me to put more memory (it's got 256MB now) and a new hard drive in it. Tired of seeing it in the way just sitting there!
The G4 has OS X 10.3 on it. Would like to upgrade to Tiger. Is there a firmware update that needs to be done before upgrading to Tiger? I know that 256MB of memory really isn't enough for Tiger. I thought about getting at least a 512MB stick to make the total memory 768MB (wish I could afford to max the memory). Others have said that OWC and Crucial have good quality memory.
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Thanks for any advice and/or suggestions.

Got the Seagate HD installed, PRAM battery replaced and missing PCI cover replaced. Sure wished that I had the extra memory to install now, but I haven't had the chance to order it yet. I know it's easy to do, but I'm going to have to move the Mac to the table and it's heavy for me to lift (bad back).
Anyway, I started to install OS 9 on the Seagate and have hit a stumbling block! Didn't have this problem when I replaced the HD in my iMac, but it was only a 120GB drive (it needed the firmware updated).
I've looked at other posts on installing OS 9 and even on Apple's support documents and can't find what I exactly need to do! Am getting more confused about it the more I try to find the right answers... Hope one of you can help me some more.
I was able to boot the Mac up from the CD (it's the white one with the orange "9" on it). I clicked on the "Mac OS Install" icon, click on "Continue" (on the "Install Mac OS 9) dialog box, and then it says: A valid destination volume can't be found. To continue the installation process, mount a valid volume for software installation." The destination disk options is grayed out. I then clicked on the "Utilities" icon, and then the "Drive Setup" icon. It shows a list of drives and I clicked on the <not initialized> Type ATA, Bus 2, ID 0, LUN 0 and clicked on the "Initialize" button. Then it says: New Partitioning: 1 Mac OS, Initialization Options: None. If you click on Custome Setup, it says that the Partioning Scheme is "Current Volume," 131072MB (131GB?), under Volume Info Type it says Mac OS Standard. The "OK" button is grayed out. If you click on "1 Partition" on "Partitioning Scheme," then the Volume Info Type says "Mac OS Extended, with Size showing 131071MB. The "OK" button is not grayed out. I didn't go any farther with the OS 9 installation, as I don't know what the heck I'm doing! Don't want to mess something up. Do you or anyone who has helped me with this posting, know the steps I should take next? The Seagate Owner's Manual says if you have a system that can't read the entire 160GB, to just partition the drive for 137GB for now if you don't want to add a PCI controller card etc. For now, all I want to do is use the 128 or 131GB (according to what it says) of the 160GB drive without using a different card or software to recognize all of the 160GB. Do I just do one partition or two... and what else? I'm completely lost...
Sorry for the long post, but had to write down the steps I took, so someone could tell me what to do next.
I don't think you have to worry about PRAM settings; they pretty much take care of themselves - and regenerate when they have to. The time to think about PRAM is when you introduce new hardware and catch your Mac expecting same old, same old, and it isn't.
It was kind of hard to get the old PRAM battery out of its holder. I pryed the right side retainer tab just a bit with a screwdriver to get it out. Noticed that one part of the retainer at the base was cracked! Hope I didn't do that! Put some super glue on the crack (was on the outside only from what I could see). Cleaned off the battery contacts with a pencil eraser and dry Q-tip before installing the new battery. It seems to stay in place even though with the side retainer cracked. If the side retainer would break off the next time the battery would need replacing, would the battery contacts hold it ok? Or would the whole logic board have to be replaced? I put a SAFT 3.6v LS14250 battery in it. The old one was a SAFT LS14250C. Hope the "C" at the end doesn't mean anything.

Hard Drive and Ram Memory for Pavilion dv6-6123cl

Good morning! I want to change my ram and my hard drive. The ram will be 8GB and 2TB drive, I wonder if I used the hard drive, if supported? and as for the ram if I have to buy one that is compatible or anybody served me?
Thank you! : smileywink:
This question was solved.
View Solution.

Here is the Manual:
Service Manual
Are you located in the U.S.? If not, where? Country only is enough so we can link you to a source for hard drive and memory.
Page 62 for the hard drive and 66 for the Memory.
You need to open the memory door and see if you have one 4 gig stick or 2 x 2. If you have 1 x 4 you just need to get another to have 8. If you have 2 x 2 you need to get 2 x 4.
You need DDR3-1333 mhz SO-DIMM memory and you need a 2.5 inch wide 9.5 mm thick SATA hard drive. 2 TB drives are not really available in the market. 1 TB is about as big as you are going to find out there.
Post back with your country of residence and we can link you to a good online store. If your hard drive is working well right now you need to use the HP Recovery manager to burn recovery DVDs to put software on the new drive.
If this is "the Answer" please click "Accept as Solution" to help others find it.

How to identify DRAM and Flash memory of a individual member from a switch stack

I want to check DRAM and Flash of each member in a stack . How can I verify the same .
Thanks

HI Tushar,
To determine the amount of Flash and DRAM, issue the show version command. Refer to the bold text in the output below. DRAM is divided logically, combining the two numbers to determine total DRAM. In this case, it is 45056K/4096K bytes (45056kB + 4096kB = 49152kB), which is equal to 48MB.
router>show version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-JS56I-M), Version 12.1(5)T9, RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Sun 24-Jun-01 15:29 by cmong
Image text-base: 0x80008088, data-base: 0x8149F218
ROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
R1 uptime is 9 weeks, 3 days, 2 hours, 32 minutes
System returned to ROM by power-on
System image file is "flash:c2600-js56i-mz.121-5.T9.bin"
cisco 2651 (MPC860P) processor (revision 0x200) with 45056K/4096K bytes of memory.
Processor board ID JAB04390J7N (1507969529)
M860P processor: part number 5, mask 1
Bridging software.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
TN3270 Emulation software.
2 FastEthernet/IEEE 802.3 interface(s)
1 Serial network interface(s)
32K bytes of non-volatile configuration memory.
32768K bytes of processor board System flash (Read/Write)
Configuration register is 0x2102
2)
To check on all the switches of Stack two way:
1- session 4 >> to login to the 4th switch of the stack.
2- remote command all show ver >> this will give us show version output of all switches.
HTH
Regards
Inayath
*Plz rate if this info is usefull.
remote

To Creative Labs: Please design a soundcard with (IFX)Insert Effects and Flash Memory ch

To Creative Labs,
Please in the future?design a soundcard that i can load a lot of (IFX)Insert effects like Reverb, Chorus, Delay, Flanger, Resonance, Equalizer but for every Sound or Soundfont I select in the Contron Panel and also?to memorize these effect settings and?at the end the (MFX)Master Effects,?Compressor and Master Equalizer?effects, like?in KORG Triton synthesizers.
Also?in that soundcard i want flash memory chips that i can load?Soundfonts and Samples?and after PC restart or Shut Down the sounds will stay in memory of the soundcard and remembered perfectly with the effects settings after Log on back to Windows.
That capabilities will be so special for musicians?and the sound will be so professional.
Thank you,
Thodoris, Greece.
Message Edited by Thodoris on 2-05-2008 04:25 PM

I have this problem only when using mic in?ventrilo. If you want to get rid of this problem you need to disable sound enchantements? in sound settings and then its fine, however you lose CMSS-3D with it. But its funny tho, if you disable CMSS-3D in Creative Control Panel you still get this issue, it only works if sound enchantements are disabled in windows sound settings.

Lion External Hard Drive (and flash drive) problem

I recently installed Mac OS X Lion on my Macbook Pro. I plugged in my external hard drive and my computer recognized the HD and even let me access files on it. However, when I tried to copy a movie onto it, it gave me an error: "The operation can’t be completed because an unexpected error occurred (error code -8003)." I decided to try a different file, the same thing happenned. I tried a USB flash drive and the same thing happenned. I checked the permissions for them and it says "you can read and write" so everything is fine there. If it helps the HD is formatted as "MS-DOS (FAT32)" and the USB stick is "MS-DOS (FAT16)".
I don't really know what to do because I have never had this problem on the same computer with Snow Leopard in the past (the only time I did was when the file was too big to copy onto it because of the formatting or something but it definetely isn't the case now).
PLEASE HELP!

There might be a bug in the driver of the FAT-32 files systems. That is the likely cause, resolution, go for any free FAT-32 filesystem driver for mac. There is very less security feaures in FAT-32, and I am sure that the security messsagae is a red herring.
What you can possibly do is a unmount, and then a remount, manually.
[http://groups.google.com/group/comp.sys.mac/browse_thread/thread/875f76b02ae664c 5/5ec5b8769922a29f?pli=1]
Please keep us posted. Sorry that you are disappointed. A leap is a leap is a leap, which always requires struggling... don't worry, it would fall in place.

IPods for file backup: hard drives v. flash memory

Is a flash memory iPod just as good (i.e., reliable, etc.) as a hard drive iPod for backing up files?
Thanks.

It's actually my understanding that flash memory is slower, but i agree with you that its nice that there are no moving parts, no noise etc. The other thing to be aware of with flash is that the estimated erase/writes over it's lifetime is estimated to be around 100,000. I don't know how long that means it will last, but it does tell us that it has a finite life.

Final Cut HD and Flash Memory Cameras

I picked up a Canon FS20 today (just like the FS10, FS100, FS200, etc). I have yet to open it.
I want to buy a flash memory camera that has footage go straight from the camera's memory card to FCP - no additional conversion steps.
Is this possible? If so, which cameras am I looking at?
I have tops $500 to spend, but would rather float around 3-400.
I have FCP 5, and would rather not upgrade yet.

Greetings, other Nick.
Listen, if you buy a tape based camera, it will take at least as long as however many minutes you shot.
If you buy a flash card based camera it usually records in mpeg 2 or mpeg 4. Both formats need to be converted to some format that you can edit with. This will take some time. Use the opportunity to do something else. Like not sit in front of the computer.
What version 5 of FCP do you have - 5.0.x or 5.1.x?
If its the former, time to upgrade. 5.0 is not compatible with your Intel Mac.

Xserve Not Mounting Firewire Drive and Keyboard Not Working On KVM Switch

A couple of days ago I was swapping out my monthly firewire(800) backup to put the daily one back in place and my daily firewire backup drive will not mount. I've tried swapping out the cables, tried USB and Firewire400 with no avail. I tested the drive on my G5 and whapaa it mounted right away and the data is readable. For some reason my Xserve ignores it. I checked that the lock is in the unlock position so that's not the issue. I ran an xrdiags test last night and it came out fine. I also applied all of the latest updates. HELP!!!
Not sure if this is related, but my Xserve has begun to ignore my KVM switch so I have not direct keyboard/mouse connection. What could be the problem?
The backup drives are Western Digital My Books.

Problem fixed. Follow the instructions on this KB article:
http://docs.info.apple.com/article.html?artnum=88338
So if you ever have these symptoms, follow the instrucions above, it works like a charm.
Thanks for your input DP.

Single User Mode - mount external drive and make it r/w

How can I access a USB disk and make it read/write?
I can't +mount -uw /Volumes/"Time Machine Backups"+ because it says that the disk is a special type.
Can I just use chmod because the disk is automounted?
When I attempt to chmod my USB disk, I get this message:
chmod: /Volumes/Time Machine Backups: Read-only file system
chmod: /Volumes/Time Machine Backups/.autodiskmounted: Read-only file system
I know that I can cp from the internal disk, since I can cat the pictures to the terminal. But I can't make the external hard disk writeable.
I need to do this from single user mode, because the machine won't boot from the DVD.
-Michael

Just got back from the apple store. The genius found these things:
* My DVD is fine. It loaded in another computer
* My computer is mostly fine, except for the hard disk. It was able to boot off of an external Firewire disk.
* The DVD drive is fine. When the computer was booted off the external disk, it was able to mount my DVD.
* The internal HD is definitely bad. Drag/drop copy to an external HD was going to take 3 hours for about 30 files. Disk Utility shows it in red.
* He suspects that the failing HD prevented the machine from being able to load a DVD. (?)
His advice:
1 Buy a new 2.5" SATA disk at Frys.
2 Buy a USB sled for the old disk
3 Replace the failing HD in the laptop with the new, unformatted disk
4 Boot from the OS X DVD
5 Install the OS from the DVD
6 Reboot from the internal HD
7 Insert the failing HD in the sled, and connect it to the computer once it's booted off the new HD. Copy everything from the /users directory
8 But a new HD for the sled and use it for Time Machine backups
9 Teach the daughter the importance of regular backups
Let's hope this works.

Installed new hard drive and flashing question mark appears

I bought a new hard drive for my macbook pro (mid 2009) because my original harddrive bit the dust... I purchased it off of amazon which states that its specifically for macbooks and the reviews appeared to back it up. I saw a lot of people with great reviews of the same model of macbook that I have so I figured it was the best solution.. I connected the new hard drive but I am getting the dreaded flashing folder/question mark. Is this normal before re-installing the OS x? Heres the problem, I am out of town on business and do not have the original OSx disc on hand. So my question is, is the flashing question mark normal upon installing a new harddrive? and if so, is there away to install the OSx onto the new harddrive without the disc?
my macbook was running mavericks before the harddrive went to poo, however I did try to re-install mavericks before i ultimately realized that I needed to new harddrive. I noticed that rebooting my mac with command+r would give me the option to reinstall mavericks without a disc or anything. the next question I have is, would this still be do-able on the new harddrive? I tried the command+R option on the new harddrive but nothing happens.
Can someone help me out here, I am getting a little desperate as I have gone over a week without my mac and theres so crucial things I need to get done! Luckily I have all my stuff backed up on an external hard drive, I just need to get the mac running again. Thanks for taking time to read!

1. Yes, it is normal. If there's no OS on the drive, there's nothing to take the computer past that point.
2. No, there's no way on that Mac model. You need to use an existing system(see #4).
3. Not on that Mac model; it doesn't have the Internet Recovery system, and there isn't a recovery partition on the new drive.
4. If the backup drive contains a bootable clone of any compatible OS, or a Time Machine backup created from Mac OS X 10.8 or newer, connect it and restart the computer with the Option key held down. If it doesn't contain either, you can't.
(105476)

Modification dates change when moving/copying between hard-drive and flash

I use a flash drive to store most of my work-related documents on. That way, I have them when I'm at school (on a Windows XP computer) and at home on my Mac OS 10.3.9. I
try to occasionally back-up my flash drive by dragging it's contents to my Mac. Copying in this direction USUALLY retains the appropriate modification date.
However, if I move things from the Mac to the USB drive (I occasionally make changes to a file on the Mac when my flashdrive isn't handy), the modification date changes to the copy/move date. Is there a way around this? It alters the information about the file and sometimes makes a version look newer than another version of a document. When in reality, it’s older--it’s just been moved/copied and the date changed.
I often move things back and forth for backup purposes, but if it keeps changing the dates on it’s own, it’s impossible to tell which is REALLY the
most current copy/version.
Is there a fix so that copying and moving files between volumes does NOT change the modification date of the file?
Powerbook G4--12 in.--1.33 GHz Mac OS X (10.3.9)

Hi, teacher. When my Lexar JumpDrive Secure is formatted as a MS-DOS volume so a PC can read it, the last-mod dates of files that I copy to it are changed to the date and time of copying. When it's formatted as a Mac OS Extended volume, the original last-mod dates are copied to it unchanged. Looks like you can thank Bill Gates for the inconvenience: apparently it's a DOS file system "feature". Don't you wish you could use Windoze all the time?
On second thought, the files really are changed when you write them to a DOS volume, because the DOS file system has no place to store the metadata about your files that a Mac pays attention to and a Windoze box doesn't. So when you write Mac files to a DOS volume, that metadata — which is part of each Mac file — is simply discarded, causing the last-mod date to change.
Message was edited by: eww

Single User Mode - mount external drive and copy user files to there

I have an iBook G4 running (I think) Tiger (although it may be Panther). AHT reports a bad HD and it will not boot from that drive. Mounting it via Target Disk to another Mac won't permit me to even see beyond the root directory; just a spinning sunburst at the bottom of the Finder window.
If I boot into single-user mode, I can "ls" and "cd" to see the files and folders in the home folder. Assuming the HD is named "Macintosh HD" and I have a USB-connected hard drive named "Backup", what are the commands I need to use in single-user mode in order to mount "Backup" and copy the user's home folder (there's only one on this drive) over to "Backup"?
As I indicated above, I'm not absolutely sure whether this iBook is running Panther or Tiger.
Thanks in advance for any assistance!

I'm in the middle of copying things.
I did a chmod -R ug+w (IIRC) to the 300GB volume and this made it writable.
I then CD'd to the Pictures folder on the Macintosh HD.
I then did a cp *.jpg /Volumes/300GB/ and found that it managed to copy all of the jpegs that were sitting loose in the Pictures folder. Some of the photos were corrupted but I expected this as the drive is reported to have a hardware issue by AHT.
I'm now in the process of copying the iPhoto Library using the cp -r command. Some files are being reported as bad and can't be copied but, again, I'm expecting this.
Whatever I can get from this drive will be a bonus. I'll mention that I used Drive Genius to duplicate the HD to a disk image and, while this was done successfully, it resulted in a "no filesystem" error when I attempted to mount it. However, I -did- ask for it to be mounted anyway and then used DiskWarrior on it (even though it didn't appear in the Finder). It took a few hours for DiskWarrior to come up with a "preview" of the disk (as the filesystem was thoroughly hosed). The User folder was nowhere to be found and every file that was displayed was corrupt. That's why I'm trying this "out of the GUI" process.
I'll thank everyone who made suggestions; they all pointed me in the proper direction.

New hard drive and new memory install (Powerbook G4)

Hi everyone, I hope the community can help me through a rough patch! I tried searching through the forum but haven't found specific answers to my dilemma. Here's the deal: I've installed a new hard drive in a Powerbook G4, the original hard drive died.
I have the Leopard install retail disc, and want to install the OS on the new hard drive. I also have a RAM upgrade that I want to install. So, in order, here are my questions:
1) To install OS, do I just turn the computer on and insert the install disc? Or do I need to do some other command to do the install, such as holding a key(s) down when I insert the disc? Is there anything else I need to do to format the new hard drive properly?
2) Can I upgrade the RAM before I install the OS, or must I install OS first? And if I can install the RAM prior, will it help speed up the install process?
3) Finally, how long should the install process take? What screens should I expect seeing? Will I be staring at the spinning beach ball for a long time?
I look forward to any helpful feedback, thank you so much!

b5160519 wrote:
The weirdest thing is that the laptop's disc drive was accepting discs, and now it won't. I highly doubt that there's a hardware failure there, I certainly didn't abuse the computer during this process. Now when I try to push a disc in, it goes about 99% of the way in with just a hair sticking out, but I can't even force it totally in.
This suggests that you didn't quite get everything right when you reassembled the G4 after replacing the hard drive. Clearances are very tight & even just a grommet or support bracket slightly misaligned can prevent everything from fitting together properly. You don't say which Powerbook G4 model you have, but for example, note the number of detailed steps & items marked "important" in the PowerBook G4 (Gigabit Ethernet) Hard Drive Replacement Instructions & especially the comments below figure 16 about the optical drive.
Whatever the Powerbook model, I strongly suggest that you refer to a detailed take-apart & replacement guide for anything you might have overlooked -- many models have disassembly/assembly quirks that are not obvious, such as the order that screws need to be removed or replaced, when & where to use a "spudger" to unhook a hidden latch, & so on. A good source for these guides is iFixit's PowerBook pages. Click on your model, then find the guide for the hard drive replacement. These will generally be among the most detailed available, with plenty of pictures & all important screw length info -- it is very easy to get confused about where screws go that differ by only one or two mm.

Re-mounting Ejected Drives and Flash Memory

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