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Help! I just started having an issue where I can't mount any DMG files on my Macbook Pro! I recently upgraded to El Capitain and everything seemed to be fine until today. Here's what I noticed, which may or may not have had an impact.
I plugged in my iPad using a cheap third party lightning cable from Target which barely works in the wall and I got a prompt saying "USB devices disabled. Unplug device consuming too much power to enable." I unplugged the iPad and the cheap cable then went to mount the Android Studio DMG file I just downloaded. I got the "no mountable filesystems" error. I tried to download the dmg again but the problem persisted. I then tried to download a few other DMG files as I suspected there was actually nothing wrong with the Android Studio DMG. I tried the SourceTree dmg as well as Charles Proxy's dmg and they all give the same error. I tried to reboot and I still have the problem. I suspect I may have damaged something with this cheap USB cable but I'm not sure. Is there a way to identify/fix the problem here? It just started happening today immediately after I tried the cheap cable.
I'm also seeing this error when I open the Mac App store and click the updates tab:
The operation couldn’t be completed. (NSURLErrorDomain error -1012.)
More info, I've tried opening all of the DMGs on another Mac and they all work so I know they aren't corrupted. I've also tried mounting from the command line as suggested here but I get errors:
SFO1212474815A:Downloads 212474815$ sudo hdiutil attach -noverify -nomount /Users/212474815/Downloads/Skype_7.26.328.dmg
/dev/disk2 GUID_partition_scheme
/dev/disk2s1 Apple_HFS
SFO1212474815A:Downloads 212474815$ diskutil verifyDisk /dev/disk2
Unable to verify this whole disk: The target disk is too small for this operation (-69771)
SFO1212474815A:Downloads 212474815$ sudo diskutil mountDisk /dev/disk2
One or more volume(s) failed to mount
I've tried hdiutil attach with verbose output and I get this:
SFO1212474815A:Downloads 212474815$ sudo hdiutil attach -verbose /Users/212474815/Downloads/Skype_7.26.328.dmg
Initializing…
DIBackingStoreInstantiatorProbe: interface 0, score 100, CBSDBackingStore
DIBackingStoreInstantiatorProbe: interface 1, score -1000, CBundleBackingStore
DIBackingStoreInstantiatorProbe: interface 2, score -1000, CRAMBackingStore
DIBackingStoreInstantiatorProbe: interface 3, score 100, CCarbonBackingStore
DIBackingStoreInstantiatorProbe: interface 4, score -1000, CDevBackingStore
DIBackingStoreInstantiatorProbe: interface 5, score -1000, CCURLBackingStore
DIBackingStoreInstantiatorProbe: interface 6, score -1000, CVectoredBackingStore
DIBackingStoreInstantiatorProbe: interface 0, score 100, CBSDBackingStore
DIBackingStoreInstantiatorProbe: interface 1, score -1000, CBundleBackingStore
DIBackingStoreInstantiatorProbe: interface 2, score -1000, CRAMBackingStore
DIBackingStoreInstantiatorProbe: interface 3, score 100, CCarbonBackingStore
DIBackingStoreInstantiatorProbe: interface 4, score -1000, CDevBackingStore
DIBackingStoreInstantiatorProbe: interface 5, score -1000, CCURLBackingStore
DIBackingStoreInstantiatorProbe: interface 6, score -1000, CVectoredBackingStore
DIFileEncodingInstantiatorProbe: interface 0, score -1000, CMacBinaryEncoding
DIFileEncodingInstantiatorProbe: interface 1, score -1000, CAppleSingleEncoding
DIFileEncodingInstantiatorProbe: interface 2, score -1000, CEncryptedEncoding
DIFileEncodingInstantiatorProbe: interface 0, score 900, CUDIFEncoding
DIFileEncodingNewWithBackingStore: CUDIFEncoding
DIFileEncodingNewWithBackingStore: instantiator returned 0
DIFileEncodingInstantiatorProbe: interface 0, score -1000, CSegmentedNDIFEncoding
DIFileEncodingInstantiatorProbe: interface 1, score -1000, CSegmentedUDIFEncoding
DIFileEncodingInstantiatorProbe: interface 2, score -1000, CSegmentedUDIFRawEncoding
DIDiskImageInstantiatorProbe: interface 0, score 1000, CUDIFDiskImage
DIDiskImageInstantiatorProbe: interface 1, score 0, CSparseBundleDiskImage
DIDiskImageInstantiatorProbe: interface 2, score 0, CSparseDiskImage
CRawDiskImage: data fork length 0x0000000002B432FE (45363966) not a multiple of 512.
DIDiskImageInstantiatorProbe: interface 3, score -100, CRawDiskImage
DIDiskImageInstantiatorProbe: interface 4, score 0, CDARTDiskImage
DIDiskImageInstantiatorProbe: interface 5, score 0, CDiskCopy42DiskImage
DIDiskImageInstantiatorProbe: interface 6, score -1000, CNDIFDiskImage
DIDiskImageInstantiatorProbe: interface 8, score -100, CShadowedDiskImage
DIDiskImageInstantiatorProbe: interface 9, score -1000, CCFPlugInDiskImage
DIDiskImageInstantiatorProbe: interface 10, score -100, CWrappedDiskImage
DIDiskImageNewWithBackingStore: CUDIFDiskImage
DIDiskImageNewWithBackingStore: instantiator returned 0
Verifying…
Verification completed…
Error 0 (Undefined error: 0).
expected CRC32 $E26D0E99
Attaching…
DI_kextWaitQuiet: about to call IOServiceWaitQuiet...
DI_kextWaitQuiet: IOServiceWaitQuiet took 0.000002 seconds
2016-04-24 06:56:52.829 diskimages-helper[5881:208283] DIHelperHDID serveImage: attaching drive
{
autodiskmount = 1;
"hdiagent-drive-identifier" = "442EA6B6-1035-4329-96D5-058628BB0C57";
"unmount-timeout" = 0;
}
2016-04-24 06:56:52.830 diskimages-helper[5881:208283] DIHelperHDID serveImage: connecting to myDrive 0x4A0B
2016-04-24 06:56:52.830 diskimages-helper[5881:208283] DIHelperHDID serveImage: register _readBuffer 0x111bc0000
2016-04-24 06:56:52.831 diskimages-helper[5881:208283] DIHelperHDID serveImage: activating drive port 18699
2016-04-24 06:56:52.831 diskimages-helper[5881:208283] DIHelperHDID serveImage: set cache enabled=TRUE returned SUCCESS.
2016-04-24 06:56:52.831 diskimages-helper[5881:208283] DIHelperHDID serveImage: set on IO thread=TRUE returned SUCCESS.
2016-04-24 06:56:52.831 diskimages-helper[5881:208283] -processKernelRequest: will sleep received
Mounting…
2016-04-24 06:56:53.048 diskimages-helper[5881:208275] -remountReturningDictionary: detaching because no mountable filesystems.
Attaching…
Error 112 (no mountable file systems).
Finishing…
DIHLDiskImageAttach() returned 112
2016-04-24 06:56:54.089 diskimages-helper[5881:208271] *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
hdiutil: attach failed - no mountable file systems
I also gt a similar CRC error when logging in with a brand new user account. I wonder if there's something in El Capitain that's causing this? I no longer think it's related to the cheap cable as I've plugged the iPad in again with a proper cable and iTunes mounts the iPad.
More information would help — if you download a fresh, known-good DMG (e.g. https://adium.im ), then run, e.g.,
– D Schlachter – 2016-04-24T12:53:18.353hdiutil attach -verbose /the/path/to/Adium_1.5.10.2.dmg
, does it mount? What's the output? The other helpful diagnostic would be if a fresh new user account can mount some DMGs — maybe it's something with your account.Thanks for your reply. I've updated my question with your suggestions. I'm certain that the DMG files are not corrupt as they open on another Mac. – Cliff – 2016-04-24T13:59:19.687
Oh and I haven't tried mounting from another user account yet. I'll do that in a few. Thanks again for the suggestions. – Cliff – 2016-04-24T14:00:04.830
@Cliff Have you found solution? I have similar issue. Only rebooting helps me. – mixel – 2016-09-13T08:40:23.693