SIERRA - How much free space for install?

[GWIM2]

I downloaded it, but by the time I did I had only 4Gb free on this MBA, so it fell over when it tried to install.

I've deleted a whole pile of images, but unsure how much space I'll need to free up so it won't fall over when I try to install again - anyone know?

 

[dianeoforegon]

You need a minimum of 10% free for the system to use. You also need room to add files for future growth.

First empty the downloads folder.
Open iTunes > Preferences > Devices > do you see backups you can delete?
Open Photos and Empty the Trash in Photos.
Check iTunes > Media folder for podcasts, moves etc you can delete
Empty the Trash

When you have the space, download OmniDiskSweeper to help identify large files.

http://www.omnigroup.com/products/omnidisksweeper/

 

[Weaselboy]

I downloaded it, but by the time I did I had only 4Gb free on this MBA, so it fell over when it tried to install.

I've deleted a whole pile of images, but unsure how much space I'll need to free up so it won't fall over when I try to install again - anyone know?

https://support.apple.com/en-us/HT201475

You need 8GB of free space.

 

[GWIM2]

Thanks both. Should be OK, trying it on the iMac first and if that is OK will re-run on this MBA