My 10.7 iMac has two partitions: HFS+ & NTFS. The NTFS was set too small and is nearly full and I want to shrink the echoingly under-used HFS and add the resulting excess to the NTFS one. Is this practicable? I can see via Disk Utility that the Mac partition can be shrunk but no way is shown for modifying the NTFS side. Maybe using a Linux tool is advised?
You can't. If you try either Windows or OS X or both will no longer boot. You can try a aftermarket disk partitioning program but most that work on HFS partition don't work for Windows and those that work for Windows don't work on Mac extended partitions.
The only real option is to backup the Windows partition with something like Win Clone then use Boot Camp assistant to remove Windows and the partition then again to recreate the Win partition in a larger size. After that install windows and then use the Win Clone software to restore Windows.
Shrink HFS partition and extend NTFS partition with Disk Utility?
