Photos/iPhoto missing library
Hi
I have an iMac 2008 and I have been backing up my photo library in case something goes wrong. To my horror, I find it already has and all photos from June 2012 to March 2015 are gone. I only have one iPhoto library in the location me>Pictures>Photos Library. I don't use an external drive (any more as it died and was attached to a MacMini) and as I only have one drive supplied by Apple, I don't use Time Machine. Can anyone suggest where on my 2Tb machine, my photos have gone? I upgraded to Photos from iPhotos which I am not impressed with and that might be the culprit as it seems to have made an iPhoto Library and now uses a 'Photos Library', however the two seem to be exactly the same and I cannot see the missing files in iPhoto either.
iMac (27-inch Late 2009), OS X Yosemite (10.10.3), 2TB SATA Disk