OS X :: Burn ISO To USB Or External HDD With Disk Utility - Error 254
Jul 28, 2009
I am desperately trying to burn a ISO file to a USB and external HD but Disk Utility does not want to. Instead I get the error message "Could not validate source - error 254". So there must be a problem with the source which is the ISO file.
I already tried setting the Partition Map Scheme to both Master Boot Record and GUID Partition Table. I also formatted the drive to FAT and HFS+. I cannot find the cause of this error. It clearly looks like Disk Utility does not like burning ISOs to USBs or HDs.
However, I really really need to this since I cannot burn ISOs with my SuperDrive which is also a common problem [URL]with my MacBook Pro.
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Feb 8, 2010
Disks I put in the Superdrive, external hard drives, or anything in the USB or Firewire (thumbdrive, etc) -- nothing shows up on the desktop. All are visible in Disk Utility. USB thumbdrives and external hard drives are visible in the sidebar in Finder, but disks are not (only disk utility).
Because of this I can't burn a disk because the disk is not being recognized. In Disk Utility, the external hard drives appear mounted and can be opened in Finder, but why aren't they appearing on my desktop (they used to)?
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Dec 3, 2009
I bought a 1TB Iomega Prestige drive, it worked great for a few months. Started making loud clicking sounds. Iomega sent me a replacement drive (refurbished).
I am using it as my time machine backup in Leopard, so it was really just a matter of plugging it in, formating it with the OSX file system and setting it up for time machine.
When attempting to format from Disk Utility, I get an error (see screenshot).
(Additional info: I can access it and format it without any problems from Windows 7 based PC).
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Apr 28, 2010
I have a Lacie 1TB external drive. I'm trying to create another partition on it using Disk Utility so that I can use one of the partitions for Time Machine. When I go to add another partition, or even just resize the existing one, I get an error saying drive must be HPFS+ with Journaling enabled. It is. I've seen reference to this error in searches, but have not found a solution. Is there a fix for this, or another tool that I can use to re-partition my drive without wiping out existing partition? I have about 450GB worth of data on the drive that I might be able to store somewhere else temporarily, I would just prefer not to have to go through that....
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Apr 11, 2010
the burning disk is maxwell dvd+r
an error appearing when burning ''failed to calibrate the laser power level''
i have mbp (late 2008)
how to fix it ?
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Oct 6, 2010
Whenever I try to burn an ISO to CD, it doesn't work, because Disk Utility requires me to insert a "Matshita DVD-R" and I don't have any of those. I only have DVD+R and CD-R. How do I burn it?
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Oct 28, 2007
I can burn CD-R and DVD+R but I am having a problem burning a cd that is DVD+R DL. Every-time I try to burn that kind of CD through either Toast or Disk Utility I get an error message that says "Unable to burn. The device failed to calibrate the laser power level for this media.". I know my SuperDrive is a DVD+R DL it shows it in the system information. Is it mabye the CD i bought? the one I have is Memorex Doublelayer DVD+R DL 8.5gb, 249min, 2.4x
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Jul 20, 2009
It all started last week when I tried burning an ISO to a blank Memorex DVD-R. When I inserted the DVD it would eject the CD over and over again no matter how many times I tried. The same thing would happen if I used a Memorex CD-R. Now these CD's worked in the past without any issues, and seem to work just fine on my other computers.
I decided to go out and buy a different brand of DVD-R's at Office Depot, thinking the laptop just wasn't really into these DVD's anymore. I ended up buying TDK DVD-R's. The computer seemed to like these more because it didn't eject them when I placed them into the drive.
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Aug 27, 2009
So I have an ISO file that I need to burn onto a dvd, and i bought some double-layer DVD+R's at the shop... And apparently it doesnt work. I mount the image, and then click on Burn.
A pop-up appears for like 2 seconds saying: Finishing Burn. The CD comes out, blank as ever...
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Nov 28, 2009
I was burning an ISO to a dvd in Disk Utility, and it gave me the message "Verification of the burn failed" So, I tried running the dvd, and I didn't get any error messages. Do you think the disk/iso/whatever is good to use?
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Nov 25, 2010
Every time I try to export a movie in iMovie or burn a disk in iDVD an error message pops up and says that my startup disk is full. So I bought an external hard drive and backed up my mac using Time Machine. Now I want to delete everything off my mac's internal Hard Drive and use my external hard drive so I can empty my disk. Does this make sense? If so will you please tell me how to do so.
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Jan 30, 2010
Well i'm trying to burn a disk image onto a DVD-DRL using disk utilities. I get everything all into disk utility and the blank cd is there and the DMG. When i select burn and the burn options comes down, It only allows me to burn to the super drive and not to the blank DVD. I tried going along and just burning it to the SuperDrive and it didn't work.
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Oct 9, 2010
I had windows vista installed but suddenly the audio decided to become faulty, after spending a day trying to fix it i realized I have a windows 7 install disc so i might as well just replace vista with windows 7. I didnt take care of vista or ever register it so it became quite a task to upgrade so i just deleted the partition and went to create a new one and just do a full install of windows 7.
I made the partition but the wrong format, so i removed it through boot camp assistant and created another, except now it keeps giving me the "back up the disk and use disk utility to format it as a single Mac OS Extended (Journaled) volume. Restore your information to the disk and try using boot camp assistant again" Now, I'd love to do this, except I have no idea what I'm doing and WHY this error has occured. After becoming frustrated I switched from my imac to my macbook pro and received the same error when trying to create a partition. So any help on exactly what I need to do would be a HUGE help. I only use windows for music production (I know, seems backwards, but I use Sony Acid and FL Studio so I'm stuck with Windows)
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Feb 21, 2009
I'm currently trying to burn a bootable image file using OS X 10.3.9's Disk Utility software. I have an external DVD Burner connected to a G4 Cube via Firewire. The issue is that when I select "burn" from the menu and point to the respective .dmg file, Disk Utility does not recognise the attached DVD burner. The burner is however recognised in Toast (which I also have installed).What might the issue be? I have searched high and low on the net in an attempt to diagnose the issue to no avail. Is there an alternative solution to burning bootable disks in 10.3.9?
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Feb 20, 2010
I have been trying to burn DVD on my macbook pro (late 2008) using Disk Utility and Burn and I always faced a message that says: " The disc can't be burned; it might be incompatible with this sic drive. Please try a different brand of disc, or try burning at a slower speed". I can burn CDs just fine .. but when it comes to DVD +R +RW +DL I cannot ! I have important files that I need to burn but I can't due to this problem. I'd like to mention that I have tried 2 different DVD brands with the speed of x2 and x4 with no luck!
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Jun 28, 2010
I have been trying to burn a .cdr file to a dual layer dvd using Disk Utility. I got it to work once, but I tried four times. I think that it must be very sensitive or something, because I can't figure out any other factor that affects it.
Has anybody else run into this problem, and if so, what's your solution? I think it may have to do with vibrations of the disk drive or something, but I would be lying if I said I knew that for sure...
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May 10, 2010
I'm running OSX 10.4.11 on a 12" PowerBook 1.5 GHz with 1.25 GB of RAM and an 80 GB HD.
When I run the disk Utility to Verify Disk, it ends with the message, "Error: The underlying task reported failure on exit." This happens if I run the Disk Utility from the hard drive, from the OSX installation disk or from an external hard drive.
The Repair Drive button is always grayed out no matter where I am running the disk Utility from, too.
So far, I haven't had any other unusual things with the operation, but I'm concerned that this could be an early warning of problems to come.
Has anyone else had this problem or have a clue?
I have cloned the entire hard drive onto an external drive with Carbon Copy Cloner. I know PPC systems won't boot from a USB drive, but I was considering booting from the install disk, re-formatting the drive from there and then re-installing from the external by running CCC from there. I hope someone will have a direct solution to repairing the drive without doing all of that.
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Jun 26, 2012
I just got my computer yesterday and when running the "repair disk" function, I already get an error! Since I used migration assistant to move everything off my old mac to my new mac, I'm not interested in reinstalling the whole OS and transffering all my files again. This is a new computer, and shouldn't have this problem this early. I also get the same result when starting up in the recovery partition. How do I resolve this?
Info:
MacBook Pro with Retina display, Mac OS X (10.7.4)
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Apr 2, 2010
i'm trying to format a spare external, it's currently formatted to ms-dos for back up dutys on my PS3 but i want to change it to mac os extended
i've just plugged the drive in ( USB ), nothings running on it, or open on the computer from the drive, but disk utility wont erase it, i've checked permission and everythings fine but it just keeps giving me this error
google and apple fail, only thing i can find linked to it refers to operating systems running on the drive,
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Jan 14, 2011
I am getting errors when I attempt to burn my back-up Snow Leopard .dmg in Toast 10 or Disk Utility. Is my superdrive faulty? Here are my error messages.
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Nov 26, 2008
I get this (screenshot) when I try verify disk in Disk utility.
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Apr 24, 2012
I have a 2TB Western Digital My Book Studio FW800 external that has 5 partitions, connected to my 2011 iMac. I had help doing the partitions and don't really remember the reasoning, but one is just for my SuperDuper! backup, one is Miscellaneous, one for movie clips off my camcorder, one for misc scanned photo's and one for my genealogy research. I back up using Time Machine to a Time Capsule and also to this WD hard drive with SuperDuper!
Recently I'm getting a pop up message that "Mac OS X can't repair the disk "Genealogy"'. And it needs to be reformatted. It's become a read only disk. When I look in Disk Utility it shows all the partitions as "Mac OS Extended (Journaled)" EXCEPT for the one in question. I also noticed that there are a lot of files with "date created" being the same date in 1969! These files may be letters I've written or photo's I added to that partition within the last few years.
I think I have to completely reformat the entire external hard drive to repair this, but I want to make sure. Because it's going to be a major hassle backing it all up to another external (having to get one first) and then figuring out how to make the files that have turned "read only" in that one partition, back to their original state! Does this sound right, that I have to reformat the entire external hard drive? And how do I get the read-only files back to their original state.
Info:
iMac, Mac OS X (10.7.3)
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Oct 31, 2010
I ran a fix permissions today, and got the following errors. I have no idea what they mean, and am a bit concerned. Anybody have any idea what this stuff means?...
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Jun 27, 2009
"Disk Utility has lost its connection with Disk Management Tool and cannot continue. Please quit and relaunch Disk Utility".
I keep getting this error when trying to erase an external hard drive with Disk Utility. When I restart, the error appears again. I've seen others with this problem but haven't found a solution. I've tried removing iTunes from Applications and deleting select iTunes receipts.
I'm running OS 10.4.11
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Aug 26, 2009
I clicked "Verify Disk" and i got that, the other two options worked. I read up on this on Apple's site but I am not having any other issues than the notice. I was told to run Disk Utility ever so often to keep my mac fast. I just happened to do it today and I got that. I am trying to avoid having to do ANY sort of reformat.. I don't have any means of backup. Like I said I am not having any other problems. I am able to restart and log in without any problems. Should I be worried about this since there is no other issues besides the notice itself?
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Jun 27, 2014
I have a Seagate 1 TB Backup Plus Drive which was working perfectly fine until I plugged it into a USB hub. It detected it while in the hub and I was able to get files off of it, but when I ejected it from the hub and put it back into the USB slot on the computer it was not detected by finder. It shows up in the disk utility and I clicked verify and repair and it says:
Verify and Repair volume “Seagate Backup Plus Drive”
Checking file system
Volume repair complete.
Updating boot support partitions for the volume as required.
Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
Is there any way to get this to work properly again? Or if not is there a way for me to recover my files on the external hard drive?
I have a Macbook PRO late 2011 running OS X Mavericks.
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Sep 7, 2009
Anyone knows why my external HD (USB disk connected to Airport extreme) does not show up in disk utility? (It sits on my desktop just fine and is fully functional) I' want to erase a partition but now i don't know how.
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Nov 21, 2008
I installed Ubuntu on my iMac, and it made 2 new partitions: DISK0S3 and Linux Swap. Here's what my disk utlity looks like: When I try to remove Linux Swap, it says that the partition (map is too small. When I try to remove DISK0S3, nothing happens and it keeps running forever before I press +Q to quit.
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Jun 16, 2009
I have spent all day with a colleague wrestling with a 4 and 1/2 year old G5 tower that has been throwing up all sorts of cranky errors. (i.e. firefox crashes, flash crashes, programs wont load, itunes stops working, firewire drives make it insane). As part of the diagnostic flow, I attempted to verify permissions on the core HD. Disk utility only took a couple seconds to determine that there is some unknown error with the HD, and it cant continue. This leads me to believe that we are dealing with a flailing drive, which very well MAY be the root of the problems! Time to make an external clone onto a fresh HD, and see if that helps.
Install CCC 3. Open CCC 3, it hiccups on the dock, and then nothing. *roll eyes*. Install super duper. Run super duper. Now super duper refuses to let me make a bootable clone of the core HD? Fine, if that is how you want to play this game. I get two SATA enclosures. Put the suspect drive in one, and then a fresh drive in the other. Plug both into my MBP where i run a CCC bootable clone. Couple hours later, it is complete. Plug the new clone into the G5 tower, and it does not see it as a bootable drive. Okay, lets try the CCC clone again. Same result. I am desperate for options.
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Jun 7, 2010
I just restore my Mac OS to a single partition and then I tried re-partitioning but it's giving me an error.
I've tried several times, tried using different sizes every time. My HD's capacity is 250GB, and I've got 108.95GB free. So I am sure that making a new partition of 35 - 40 GB is not a big deal. I also tried using Disk Utility, both from the Mac OS install disc and while using the Mac OS itself, but it keeps giving me this error. I do not want to format my Macintosh HD's partition because I don't have an external HDD on me at the moment so I will not be able to back up. I have a lot of important data that can not be deleted.
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