On: OS X Mavericks App Store link

[alex_c]

Does anyone know how installing Mavericks affects hard drive space? I'm running on an 128GB SSD and space is always at a premium for me.

[Udo → alex_c]

My MBP has a 128G SSD system drive as well (+ a big HDD for the data) and I got over 50G free, that's including some pretty big things (=25GB) in the Applications folder. /Library and /System folders come in at about 14GB together, I'd say a fresh Mavericks install should be around 30GB total.

[aroch → Udo]

The install is ~8GB

[Udo → aroch]

Really? For a fully functional install? Gotta wonder what the rest of that is doing there on my drive...

[eliot_sykes → alex_c]

Same here with HD space being at a premium.

For anyone not yet using a hard drive analysis tool for discovering what's taking up all that space, DaisyDisk has served me well. For analysing Time Machine backups, BackupLoupe works well for identifying backup bloaters.

[dak1 → alex_c]

I got back about 14GB of disk space after upgrading.