Disc warrior error code 2153,4903
Running from another volume, DiskWarrior couldn't rebuild Macintosh HD because it was still in use.
Previously, I had to reboot into the other volume's recovery Disk Utility to repair Macintosh HD because Disk Utility couldn't unmount Macintosh HD for the same reason.
MacBook (Starting Late 2009)
After much struggle, I was able to use Disk Utility on another volume of the internal HD to repair Macintosh HD, and I was able to use Disk Warrior on an external backup HD to clean up the directory.
We can consider this case closed. Thanks for your help.
This was all an attempt to clean up MacIntosh HD OS X 10.10 before upgrading to 10.13, which turned out to be quite difficult, too.
I have been buying Apple computers since the Apple IIe because they were much easier to use than the competition. I guess those days are long gone.
Nick
After much struggle, I was able to use Disk Utility on another volume of the internal HD to repair Macintosh HD, and I was able to use Disk Warrior on an external backup HD to clean up the directory.
We can consider this case closed. Thanks for your help.
This was all an attempt to clean up MacIntosh HD OS X 10.10 before upgrading to 10.13, which turned out to be quite difficult, too.
I have been buying Apple computers since the Apple IIe because they were much easier to use than the competition. I guess those days are long gone.
Nick
When it couldn't unmount the Macintosh HD, were you booted into the Recovery Partition?
https://search.yahoo.com/search?ei=utf-8&fr=aaplw&p=Disc+warrior+error+code+2153,4903
Disk Unmount Using Terminal (2)
You are welcome. Have you tried running Disk Utility in the Recovery Partition?
That didn't work: same error.
I also failed when I logged out, then logged into another user account and ran Disk Utility.
Thanks,
Nick
If you still can't unmount the disk, have you tried the Terminal commands posted above?
You are welcome.
Yes. My last response to that question was, "That didn't work: same error."
Disc warrior error code 2153,4903
