I have an LVM partition that is split into
/projects (500 GB) and
/backup (1.5 TB). I cannot mount it because it was on a root machine that crashed. How can I restore the data without do LVM to Ubuntu harddrive?
This is pretty well documented in the LVM howtos and elsewhere. Just move the disks to a system with LVM, reassemble the volume group, activate the LVs, and backup like you normally would. I don't see what NTFS has to do with it, unless you're trying to accomplish this from a Windows host. There are drivers out there that can add LVM support to Windows though I've never tried them.