Equium A100 - Unable to boot from bootable disc

Equium A100-549
My partners son has a 2 year old Toshiba laptop that has become slow over time. I had made a backup of the system with office etc installed using Acronis. Anyway, decided to clear it off by running Acronis and the image saved. The program runs as normal and it drops down to a dos like screen ready to restore. It then sits there with the curser flashing as normal and then it locks up, and doesnt allow you to browse to the image.
I though that this may be corrupted, so reinstalled Acronis. Made an Acronis boot disk to run the image and it ignores the disk and boots straight to the normal hard disk (IDE 0) Still no joy. Then tried the laptops restore disk. In the BIOS I specified CD device as first, and also the restore disk says place in drive and turn off.
Then as it boots hit F12 which brings up a menu allowing you to boot from CD drive. I have done this, but it doesnt appear to look at the CD and just loads windows from the HDD. I removed the CD from system devices and rebooted. It found it and added the new device to itself and requested a reboot. Still no joy!
Scanned with Norton but still no good. Removed Norton. The result is the same. Able to read from the CD and also write to it as well. Ran Toshibas diagnostics on the device and all appears ok with it.
Tried to make a boot disk on flash stick, but this is ignored also, even though specified boot using other devices.
Basically it looks like I cant get it to look at the CD before loading off the HDD.
Would flashing the BIOS cure it? - Registry error causes this?
Is there anywhere that I can speak to someone from Toshiba about this?
Any info / help much appreciated

Worked first time. I was in the middle of running a downloded version of system mechanic to see if it would find anything. Anyway, I placed the restore disk in it and pressed C on reeboot and it worked - foolishly I stopped it and tried again. It worked again. Had searched the entire net and a few forums before coming here. One post and its fixed!!!!
A life saver, especially at christmas as I didnt want to have to buy another laptop.
Once again thanks
Nick

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Unable to boot from install disc to repair volume

Hi
Recently ran Onyx which told me the volume needs to be repaired (my Macbook has otherwise pretty much been running fine, perhaps a little slow on startup but no major issues). Not very clued up on using Macs sadly so did a little googling about how to go about this.
Am I right in thinking that I definitely need to repair this even though things appear to be running alright? If so, do I do this by booting from the install disc?
I attempted to boot my Macbook from the install disc to run a repair but I just can't seem to get this working! I put the disc in, restart the machine and hold C, but the mac seems to just boot up as normal. Am I doing this incorrectly?
Any help is appreciated, like I say I'm pretty hopeless!

dellywoo wrote:
Hi
Hi, and welcome to the forums.
Am I right in thinking that I definitely need to repair this even though things appear to be running alright?
Yes.
If so, do I do this by booting from the install disc?
Yes.
I attempted to boot my Macbook from the install disc to run a repair but I just can't seem to get this working! I put the disc in, restart the machine and hold C, but the mac seems to just boot up as normal. Am I doing this incorrectly?
Perhaps. See #6 in [Formatting, Partitioning, Verifying, and Repairing Disks|http://web.me.com/pondini/AppleTips/DU.html] (or use the link in *User Tips* at the top of the +Using Snow Leopard+ forum), especially the yellow box there.

2007 iMac won't boot from startup disc

My brother passed away and I inherited his Mid 2007 iMac. Works fine, but all accounts are still in his name and I do not have his passwords. Trying to wipe the hard drive and do a clean start, but unable to boot from startup disc. It was purchased with Snow Leopard, but has been updated to Lion 10.8.3. It appears that there may be a security feature that rejects any attempt to boot from startup disc. Is there another way to wipe hard drive and start clean?

Sorry for your loss ...
The original startup disc will not work on a Mac running v10.8.3.
The fact that you do not have the admin password is a problem because you will need it to repair the startup or restore OS X using OS X Recovery

Mac Pro 2008 won't boot from install disc - black screen

Hello,
I recently purchased a new hard drive to replace the original that came with my Mac Pro 2008. I was able to format the new drive using Disk Utility. I am now at the point where I need to install OS X onto the new drive, but the computer refuses to boot from the disc. The disc is recognized by the computer (I can access the disc and am able to use the BootCamp applications, etc.) but I just get a black screen when trying to boot directly from the disc. The computer boots fine otherwise.
I have tried the following:
I have tried using both the gray install disc that came with the computer and the Snow Leopard Install DVD disc.
I have tried booting using the "C" key and the "option" key but still receive a black screen following the chime (I've held these down for several minutes).
I have tried restarting from either install disc using the Bootcamp Assistant.
I have tried running the installation software to get it to restart from the disc.
I have tried a combination of the drives, i.e. trying to boot from the discs with just the new drive installed, just the original drive installed, and with both in bay1 and 2.
Everything results in the computer starting up, hearing the chime, and then nothing..just black screen. I have the original drive partitioned with BootCamp with OSX Snow Leopard and Windows 7 installed (I don't know that that matters).
I am at a loss as to what to try next. It doesn't seem like the superdrive because it is recognizing the disc, it just won't boot from it.
Any help is appreciated, thank you.

Clone should be a must and easy to do and learn (learn by doing! 2)
6800 would 'qualify' as 5x70 series flashed etc and same rule: 10.6.5
In the past there was 10.4.6, 10.5.6, but not 10.6.6 - even though strong need for such a DVD.
10.6.8 DVD would be excellent
Lion or ML - buy, download, make an installer flash card would be what I would do at this point.
Then keep both - dual boot as you learn and test and see what ML does and waht you had that required Rosetta to support PowerPC. See www.roaringapps.com about that.
With Carbon Coyp Cloner - was share, now commercial, great utility been around since 10.2.2 at least - this time 2003. 10 yrs.
You can clone the system folders, you can even selectively choose. You can skip copy of most of your home account and do that separately to another drive if you want.
Clone Windows with Paragon or WinClone and use Windows 7 or 8 DVD to do a system repair (automatic) or to edit the BCD file. It can and should - and all you do is boot Windows 7 DVD w/ only the one drive present and go at it. Piece of cake. But yes, Windows gets fussy if you change or remove or move. BCD to the rescue. A proper program for cloning like Paragon's "Clone OS" meant for going from disk drives to SSDs, knows that and how to do it.
Back to how to clone etc:
Clone
Disk utility has RESTORE which will also clone your system but not the Lion Recovery partition. Oddly Apple did not 'endorse' making bootable clone of the system which works too but most choose Carbon Copy Cloner - it works more consistently; it allows for smart update of the backup volume. Both can backup to a sparse disk image if desired.
Using Cloning as a Backup Strategy
http://www.macupdate.com/app/mac/7032/carbon-copy-cloner
http://www.bombich.com/software/updates/ccc-3.5.html
OS X Lion Install to Different Drive
How to create an OS X Lion installation disc MacFixIt
Migration Assistant Update for Mac OS X Snow Leopard
http://www.apple.com/support/lion/installrecovery/
Create an OS X Lion Install disc
http://reviews.cnet.com/8301-13727_7-20080989-263/how-to-create-an-os-x-lion-ins tallation-disc
How to clone your system:
http://macperformanceguide.com/Mac-HowToClone-backup.html
http://macperformanceguide.com/Mac-HowToClone.html
http://www.macupdate.com/app/mac/7032/carbon-copy-cloner
http://www.macperformanceguide.com/blog/2012/20120711_2-MacPro-internal-clone-ba ckup.html
The DVD is dependent on your hardware. And your hardware changed. The drivers for the 5780 and 6xxx are bundled in the OS and lacking. Minimum build thing.
Put the new drive anywhere you want. Does not matter. Can move it later. Can be drive bay 0-3 or a Firewire external or under the DVD drive.
When you clone pull the old drive and boot from the newly cloned.
After that keep a backup clone around all the time. Takes less than 10 minutes to do a smart update to copy just the changes to keep it current. So you have working copy of the system. I keep Clone "A" that I keep "as was" the system as of last month or whatever (like 10.7.4 before upgrade to 7.5).
Comes easier after doing it once and have all your ducks in a row.

MacBook Won't Boot From Install Disc

I was getting the "No Airport Card INstalled" error notice, so I replaced the airport card. Very easy operation really. With a new card in, I still get the same error notice. Mind you the Bluetooth works, and it's on the same card.
If I unplug the battery, and reconnect it, the airport will usually then come up, but disappear as soon as the machine wakes from sleep.
I was thinking software corruption, but now I find that I cannot boot from the Apple install disc. Using the "C" key or the "Option" key.
I have also now found that I can't reset the PRAM using the Option-Command-P-R key combionation either.
It's NOT the keyboard, as it works in every other way.
So still thinking software corruption somewhere, but unable to boot from the install disc to do a wipe and reload of the OS.
Need ideas before I bite the bullet and take to the shop.

Try smc reset.
http://support.apple.com/kb/HT3964

G4 Won't start. Won't boot from any disc (OS 9 or Linux).

I recently acquired a Power Mac G4 from my school, as they did not need it. The computer was a donation to the school, so the hard drive was removed and destroyed.
I found a hard drive for it, and hooked it in and it seems to be running fine. However no matter what I do, it will not boot from the disc drive. I have tried holding "C" while it's booting, and the screen goes white for a little while,and then it switches to the flashing Finder icon and question mark. I have also tried the Startup Manager, but it doesn't show that there are any discs whatsoever. I looked around and found that the Open Firemware may help. But I can't get into it using the CommandShift+OF command. In fact, the only time i got into it, was when I mashed a bunch of keys at once, and it came up. But that hasn't worked again.
Also (I dont know if this matters) but when I press the Power button, I don't hear that ever so wonderful, startup sound. And Ive tried to boot from the internal disc drive, and an external Sony drive.

The Mirrored Drive Doors G4 models (and possibly the quicksilver 2002 models) are unable to boot OS 9 from ANY "Full Retail" CD. These Macs came out after the last versions of "Full Retail" 9.2.1 were issued, and if you bought one of these advanced G4s new, it came with a set of discs that contained a customized 9.2.1, so no new "Full Retail" OS 9 CDs were needed.
If you could post the CPU speed (check the label on the back), readers can figure out exactly which Mac you have and determine how much trouble you are in.
Can you get a Mac OS X 10.2 or 10.3 "Full Retail" CD from the school? They should have trunks full, and think of them as antiques.
Message was edited by: Grant Bennet-Alder

Can't Boot from bootable CD/DVD or USB.

I'm trying to install a new OS from a bootable DVD that I created. However, my T530 will not boot up from the DVD. I checked the boot order in the BIOS settings, and even explicitly tried to force to boot from my DVDROM usint the F12 boot menu. I've been able to boot from this DVD on my other computer.
Any way to diagnose whether my DVDROM is faulty, or is there perhaps some BIOS setting to fix this? I am able to read the disc from Windows, just can't boot from it. The laptop is brand new, just opened it up today, so I don't know why something as simple as this wouldn't just work.
Solved!
Go to Solution.

ThorsHammer wrote:
dreachem wrote:
I took a DVD drive from another Thinkpad and swapped that in. I still could not boot from the disc.
Next, I copied the ISO image to a USB stick and tried to boot from that instead. But it hung. I was able to boot from the same USB stick on another laptop.
All the signs seems to suggest the laptop is simply defective, which is extremely disappointing considering it is brand new and I waited for about a month to receive it. Is there anything else I can/should try (some diagnostic utility, perhaps?), or do I just send it in for a replacement?
Is you used the tool at http://www.microsoftstore.com/store/msstore/html/pbPage.Help_Win7_usbdvd_dwnTool to take the .ISO file and create the USB stick, I'd say you are right and have an issue with the system.
Did the system ship with Windows 8 and is safe boot turned on?
Yes, it is Windows 8 with Secure Boot on by default. I tried it both with it enabled and disabled, and it didn't work either way.

Disk Repair Boot from OSX Disc...

Have a bad issue: my iMac has been found (using disk verify) to be corrupt. It tells me to boot from the installation disc to repair. Only problem is my DVD SuperDrive is dead! How can I boot from a disc if the drive won't mount? I've used three other external drives and none are recognized.
Any suggestions?
Thanks!!

Hi Gully, I agree with iyacyas
{quote:title=iyacyas wrote:}If you have another Mac to use you can place the sick Mac into Target Disk Mode and plug it into the good Mac via firewire and run DU against it from their.{quote}
See > http://blogs.techrepublic.com.com/itdojo/?p=198
and > http://www.selfreliantfilm.com/?p=143
Even if you can't repair the drive from the MacBook Pro in TDM, you should be able to move your user files to either the MacBook Pro or an External HD until you can repair or replace the iMac.
Dennis

IMac won't boot from install disc

My iMac has been running a little slow the past two days and so I ran Disk Utility. DU reported that I had the incorrect number of thread records and an invalid volume count. It instructed me to repair the disk by booting from the install disc. The problem is that when I try to boot from the install disc (after I choose the disc from the options), I just get a gray screen with the apple logo on it. Nothing else happens, no disc activity, nothing.
Anyone have any ideas as to how to get my iMac to boot from the disc and, ultimately, to get Repair Disc running from DU?
Thanks,
Rich

It should only take a minute or so at most to boot from the DVD.
If your sure you have the correct Install Disk for that iMac, I'd start over. Then if it still doesn't work then perhaps a trip to your Local Apple Service Provider with the Disk or Disk and iMac is in order.
http://www.apple.com/buy/locator/service/
Alternately using the correct Disk as per the following article, see if you can run the Apple Hardware Test? > http://support.apple.com/kb/HT1509

Will Not Boot from Install Disc & 4SNS/1/40000000: TG0D - Thermal Sensor?

*Will Not Boot from Install Disc*
I used the "option key" approach with the gray start up disk. At first it ejected the start up disk. Then I nudged the disk back in the machine and it showed on the screen as an option. I clicked on the start up disk image and it finally loaded.
But, it won't accept the start up disk when holding down the "C" key at restart.
*4SNS/1/40000000: TG0D*
I did an Apple Hardware Test and received the following diagnostic:
Version: 3A121
Test Suite: Extended Test
Loop Count: 2
Result: Failed
Failure code: 4SNS/1/40000000: TG0D
*Thermal Sensor*
A search for the failure code 4SNS/1/40000000: TG0D brought up an Apple Discussion topic entry stating: That error code indicates a problem with a thermal sensor. It could be not working or possibly not connected. You will need to take it to Apple for repair.
Would a thermal sensor have anything to do with it not starting up when holding down the "C" key at restart? What are thermal sensor problem symptoms?
*User File Folder Opened Up*
The machine also starts up with my user file folder opened up rather than with a blank screen as it normally should
I completed a DiskWarrior rebuild on the disk and verify disk shows it is fine.
Any suggestions on what to do next with these issues?

The answer was in your post: "You will need to take it to Apple for repair."

Will Not Boot From Install Disc

Upon a Verify Disk check I received a "Volume Header needs minor repair" notice.
Because it is necessary to boot from another disc to repair the header, I attempted to boot from the install disc. I tried restarts holding down the "C" or by selecting the start up disc in System Preferences/Startup Disk. I've tried each of the these several times to no avail. The machine will not start from the install disc. It keeps starting from the machine hard drive.
Are there any other suggestions how to force it to start from a startup disk?

The installer disc problem is still a concern but in the meantime you can try booting to Safe Mode. Run Disk Utility again from Safe Mode and see if it still reports problems. Boot normally afterward.
[Mac OS X: Starting up in Safe Mode|http://docs.info.apple.com/article.html?artnum=107393]
[What is Safe Boot, Safe Mode? (Mac OS X)|http://docs.info.apple.com/article.html?artnum=107392]
[Safe Boot takes longer than normal startup|http://docs.info.apple.com/article.html?artnum=107394]
[Mac OS X 10.4, 10.5- Computer shuts down during Safe Boot|http://support.apple.com/kb/TA24054]
Safe boot mode runs a directory check command similar to that used by Disk Utility's repair. In Tiger it ignores some stored information (cache) that is normally read that speeds up the boot process, and it moves some other caches to the trash. It also uses only System fonts and disables all Startup Items, third party items, and any Login Items.

Replaced hard drive, now can't boot from install disc to restore backup

Yesterday, my hard drive died (disk warrior informed me, that HD had irrecoverable errors, and my iMac would shut down unless it was booted from the Disk Warriorr disc).
Today, I have a new internal HD professionally installed. And when I brought it home, and installed Snow I got an error at the end of the installation "OS could not be installed, restart or choose start up disk" or something to that effect. However, on licking OK I got the snow music, and welcome movie nd eerything seemed to be working fine.
I can log in normally and have get to my desktop, but on trying to boot from the Snow Leopard disk (10.6), I get to the gray screen with the apple logo and hang. I have tried resetting Pram/firmware and also ran the fdisk command (twice).
It seems too much of a concidence that my hard drive and now my disc drive would die all in span of two days? I can hear the disc noise, but as I mentioned I cant get beyond the gray screen on trying to boot from the disc.
Suggestions?
Late Nov '07 intel iMac. And I did update the OS to 10.6.4. Install disc is 10.4.

Return it to the repair station.

G4 that will not boot from any disc EXCEPT the Apple Hardware Test CD

We have a DP 1ghz Quicksilver PowerMac G4 that will not boot from any disc EXCEPT the Apple Hardware Test CD that came with the machine.
We were in the process of installing 10.4 Tiger before placing it for sale.
The Mac was originally OSX Server 10.1 that we later converted to a worksation running 10.3 Panther.
It has 1 GB of memory, 80GB hardrive, 250MB Zip Drive and a Radeon 7500 video card.
Since this machine only has a CD-R drive and not a DVD-R, we installed Tiger using another Mac via Target Disk Mode. The installation process went well, but when I tried to reboot I got a Kernel Panic right after startup screen with the grey Apple logo.
On some reboots we get to the blue startup screen, others it stops at the grey Apple logo, others a black box like the a Kernel Panic - but with no text. Twice it went directly into Open Firmware.
We have done the following during our troubleshooting:
- Reseat RAM, Video Card, Hard Drive, Zip & CD-R connections
- Remove RAM 1 stick at a time and reboot
- Replace RAM with RAM from another working Quicksilver
- Replace Video Card with one from another working Quicksilver
- Zap PRAM
- Reset CUDA switch
- Unplug the MAC and remove everything (RAM, Battery, etc) for 30 minutes and try to reboot
- Tried booting from the Macintosh Server G4 Software Restore CD
- Tried booting from Mac OS X Server CD
- Tried booting from AppleCare Protection Plan CD with TechTool
- Tried booting from Diskwarrior CD
- Tried booting from an external FireWire drive with a disk image of Tiger OS Install
- Tried booting with the hard drive disconnected
The Mac WILL boot from the Apple Hardware Test CD and will pass ALL of the extended tests.

Conventional wisdom says that any Mac that will not boot up from a System/Install CD OS 9 or an Install CD Mac OS X, has a Hardware problem.
The diagnostic CD is a red herring because it uses a very primitive method of reading the CD, and so does not properly represent the machines general ability to read CDs.
I would look at the CD drive cables, etc, and see if another drive gives different results.
You have not mentioned using the Startup Manager (option key at Startup) to do any checking:
HT1310- Startup Manager: How to select a startup volume

My Mac Mini Will Not Boot From Install Disc For Re-Installation

I've tried all (at least the ones I've found) workarounds to get my Snow Leopard Install Disc to boot, but it will not. When the computer boots normally (without the DVD), I can insert the DVD and access it from there. However, when I try to use the utilities on the disc, it requires a reboot that ends up telling me to turn off my computer. I have a Late 2010 Mac Mini and I have yet to try booting from a disc, so I don't know if this is a new problem or an old one. Any help would be greatly appreciated.

Unplug everything from your computer except a wired keyboard/mouse and the monitor. If your Mini still won't boot from the install DVD try resetting the PRAM and SMC.
Intel-based Macs: Resetting the System Management Controller (SMC)
Resetting your Mac's PRAM and NVRAM
If that doesn't fix the problem remove any RAM (if you upgraded) and replace with the Mini's original RAM. There is also this document you might want to read, Mac OS X: Gray screen appears during startup.
If that all fails I would take the Mini to the Apple store. It should still be under warranty if you bought it late last year.

Booting from Install disc Stalls at strange Mouse & Batteries Screen

Any thoughts/suggestions/answers would be greatly appreciated...
I have my hands on a friends iBook G4 purchased in April 2006. They were having problems with it and decided to wipe the drive and re-install the OS etc.
They got it wiped but could not get thru the installation process due to errors. They assumed it was a scratched install disc, and gave it to me to fix.
Upon receipt, I put in my Tiger (retail, not computer specific version) disc and booted via holding down the 'C' key. Got thru the first grey screen, then thru the grey screen with the grey Apple logo on it, and then up pops a screen I've never seen before; and the process stalls here.
This screen looks like two outline images of the Mighty Mouse from its underbelly. Image one is showing you where to install the batteries, and image two is showing you where to turn it on. And on image two, where the laser is, it's flashing red.
Here's a picture of it @ http://adairnet.com/ss-mac-install-stall-screen.jpg
I couldn't get past this screen so I booted it in Firewire Target Disk Mode into my other computer and used Disk Utility to fully wipe the drive (thinking there may have been some odd file on it causing this issue). That didn't help; when I booted from the Tiger disc again, I stalled at the same spot.
Then I discovered a way past it - it was only by plugging in an old single-button USB clear Apple mouse into the USB port, that caused that screen to go away and proceed to the Tiger installation screen.
I tried this several times, and consistenly, the screen would always come up if no mouse was plugged in, but as soon as I plugged the mouse in, immediately it went away and continued on as normal.
I was able to complete the installation process and everything seems to be working as it should now. I'm just dying to know what this screen was for and why it came up.
Other things to note - even after I have a successful/working OS on the iBook, if I try to boot from any disc containing an OS, I get this same screen/situation.
I did discover the reason the initial install failed was due to bad RAM, which I've replaced and checked and is working fine now.
I've also checked the system with TechTool Protege and found no errors.
Also note that the iBook owner never uses any external or wireless mouse - just the trackpad, and has never experienced any issues with it.
And lastly, to let you know, I did reset/zap the PRAM, did the Open-Firmware resettings, and reset the battery/power-management too without any affect.
Could it be a faulty (or soon to go out) trackpad, disc drive, or USB port? Or something else? Any thoughts?
After searching over 30 pages of search results here, I found a few more posts with similar issues, but as of today (1/2/07), none were resolved...
http://discussions.apple.com/thread.jspa?messageID=3378317
http://discussions.apple.com/thread.jspa?messageID=3298926
http://discussions.apple.com/thread.jspa?messageID=3469463
http://discussions.apple.com/thread.jspa?messageID=3394741
TIA!

i actually had this same issue and called and talked to tech support about it, they transferred me to a product specialist and told me the reason it would do this is the install disk is most likely not the original one that came with the computer
he said that if the install disk is different, it may not recognize the specific trackpad the unit is running since it could be a different build, and will than assume that the computer is using an external mouse. If it than doesnt register the external mouse, it will assume that the mouse just doesnt have any battery power.
it makes sense to me, i also was able to bypass the "error" by using an external USB mouse, and i know my install disks were just the family pack that came from the apple store, so i can only assume thats what could be going on.

Equium A100 - Unable to boot from bootable disc

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