I have a seemingly broken MacBook Air that doesn't boot, but I can get into the recovery console. If I try to reinstall Mac OSX on the main disk (Macintosh HD aka /dev/disk1s2
), the installer complains that there isn't enough disk space available.
So I opened up a terminal and tried to manually delete unnecessary files.
Using rm -rf
, it looks like everything works, except that the disk space isn't freed. On reboot, the files are there again as if nothing happened.
- Folders I 'delete' with
rm -rf
seem to vanish from the directory listinng (ls
) df -h
never updates the amount of free space afterrm
- Rebooting into recovery console shows the deleted files are there again
And when I look at the disk in Disk Utility in the recovery console, it tells me that there are 4 GB of free space, but 0 KB deletable.
How can I delete the missing files without reformatting the whole HD and losing all data?
And why doesn't rm -rf
work?
Using rm
without -f
(e.g. # rm -r /Volumes/Macintosh\ HD/Developer
) first asks me to confirm each file deletion, then errors with
no such file or directory.
Which I would assume is a permissions issue. But I'm root (#) in the terminal and the files are owned by root/wheel. As suggested, I tried to remount with write permissions (mount -uw
). This did not give me an error message, but the behavior is still the same (files reappear on reboot).
Best Answer
Using
-f
hides errors. Try running the command without the f option:rm -r …
.Without the actual error message, I can guess what the problem is: you're trying to delete files by providing a path you expect to the files but do not match the actual path.
When you're booted into Recovery, the Recovery environment is mounted at
/
, so paths like/Users
are actually pointing to the Recovery HD. For example, instead ofyou should prepend to your paths the correct path to the volume
where Macintosh HD is your startup disk volume. Try
ls /Volumes
to see what's available.