I'd just compare the sizes of the two photos libraries (internal and external drive) using Get Info.
If you open the external drive's library, that then isn't the "system" library which macOS will download photos to from iCloud. The dialog box seems to be reminding you that this isn't the main Photos library. If your iCloud's full, it sounds like you've got iCloud Photo Library enabled (storing all your photos in the cloud). You'd either need to switch off iCloud Photo Library and just store your photos on your Mac, or subscribe to a bigger iCloud storage plan. Regards Sam MacAmbulance Ltd. Providing Affordable Mac/PC Support and Web Development Sam Mullen +44 (0)7747778022 [email protected] www.macambulance.co.uk MacAmbulance Ltd. is a registered company in England & Wales, registration number 8466597 This email is intended solely for the addressed recipients and may contain privileged or confidential information. If you have received this email in error please notify the sender and delete the email immediately. On 29 Aug 2017, at 15:40, 'Richard Coker' via Sussex Mac User Group <[email protected]> wrote: Hi Sam, Yes, that’s what I did. Richard > On 29 Aug 2017, at 15:25, Sam - MacAmbulance <[email protected]> wrote: > > Did you double click the iPhoto library from the external drive? > > Sam > > > MacAmbulance Ltd. > Providing Affordable Mac/PC Support and Web Development > > Sam Mullen > +44 (0)7747778022 > [email protected] > www.macambulance.co.uk > MacAmbulance Ltd. is a registered company in England & Wales, registration > number 8466597 > > This email is intended solely for the addressed recipients and may contain > privileged or confidential information. > If you have received this email in error please notify the sender and delete > the email immediately. > > > > On 29 Aug 2017, at 15:05, 'Richard Coker' via Sussex Mac User Group > <[email protected]> wrote: > > Hi, > > I’ve just backed up my Macbook Pro prior to installing the latest OS. On > checking the hard drive I used, specifically the ‘Photos Library’ I got this > pop-up message; > > <PastedGraphic-1.tiff> > > I’m reasonably literate but I’ve no idea what this is supposed to mean. I’m > aware that my iCloud is full and I’m reluctant to subscribe. I just want > reassurance that all the photos I can see on my laptop actually exist on its > hard drive and I can copy all of those files to my back-up drive. > > Thanks in anticipation. > > Richard > > > > -- > You received this message because you are subscribed to the Google Groups > "Sussex Mac User Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/smug. > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "Sussex Mac User Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/smug. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Sussex Mac User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/smug. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Sussex Mac User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. Visit this group at https://groups.google.com/group/smug. For more options, visit https://groups.google.com/d/optout.
