sudo apt-get install hfsprogs
sudo mount -t hfsplus -o force,rw /dev/sdXY /media/mntpoint
sudo mount -t hfsplus -o remount,force,rw /mount/point
sudo fsck.hfsplus -f /dev/sdXY
yum install kmod-hfs
yum install hfsplus-tools
sudo mount -t hfsplus -o force,rw /dev/sdXY /media/mntpoint
sudo mount -t hfsplus -o remount,force,rw /mount/point
sudo fsck.hfsplus -f /dev/sdXY
sudo mount -t hfsplus image.dmg /mnt
sudo mount -t hfsplus image.dmg /mnt