Re: OT: Mac OSX upgrade and general housekeeping

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> On 23 May 2015, at 12:53 pm, Voytek <[email protected]> wrote:
>=20
> I was asked to help with 'no space on startup disk' issue, only to =
discover it's a Mac, I have no experience with Mac,
>=20
> df showed 100% utilization on built in 500gb hard drive,=20
> I've transferred some user data to external drive, now have 97%=20

Common problem is when people turn on Time Machine, then for whatever =
reason don=E2=80=99t connect the external drive to the system for a =
lounge time.  OS X will create a whole bunch of offline backups waiting =
for the next time the time machine volume is available.  Here=E2=80=99s =
a good starting point: https://support.apple.com/en-au/HT204015

> What's a minimum hard disk free space one should maintain on a Mac?

I generally use a 10% rule-of-thumb regardless of the OS.  Maybe a =
little more if you have logs and temporary data on the same volume as =
your startup drive.  In Linux, I usually keep =E2=80=9C/=E2=80=9C and  =
=E2=80=9C/boot=E2=80=9D away from =E2=80=9C/var=E2=80=9D for instance, =
in which case I can comfortably maintain 10% or even less free as the =
data is mostly static.=20

> This runs OSX 10 7 5,  to upgrade to Yosemite, is it just 'click and =
watch'?=20
> How much free space should I make before attempting upgrade?

Not sure about inline upgrades from 10.7 straight to 10.10.  You can =
always go to the app store, download 10.10 the run the bootable media =
creation utility:
sudo "/Applications/Install OS X =
Yosemite.app/Contents/Resources/createinstallmedia=E2=80=9D

sage: createinstallmedia --volume <path to volume to convert> =
--applicationpath <path to Install OS X Yosemite.app> [--force]

Arguments--volume, A path to a volume that can be unmounted and erased =
to create the install media.
--applicationpath, A path to copy of the OS installer application to =
create the bootable media from.
--nointeraction, Erase the disk pointed to by volume without prompting =
for confirmation.

Example: createinstallmedia --volume /Volumes/Untitled --applicationpath =
"/Applications/Install OS X Yosemite.app"

> Are there any good housekeeping utilities to use, going through some =
apps, I've found a photo app with over 1 g of deleted photos.
> (something like ccleaner ?) Any hard disk area to check for junk, like =
temp in windoze?

There=E2=80=99s a few around, but I found, generally speaking, OS X does =
a pretty good job of looking after itself.  Certain applications can be =
big disk hogs though - iPhoto, iMovie and iTunes spring to mind.  They =
generally have their own =E2=80=9Cdeleted stuff=E2=80=9D which if you =
don=E2=80=99t clear out in the application itself won=E2=80=99t be =
released when you empty the normal =E2=80=9CTrash=E2=80=9D on OS X.

Having said all that, =E2=80=9CDisk Inventory X=E2=80=9D is a GPL tool =
that will show you where all the space has gone: http://www.derlien.com =
- check it out, it works well.  As for getting rid of stuff remember OS =
X is a fully-fledged Unix so most of the familiar command line tools are =
available in a terminal :)

> Thanks for any pointers

No worries - hope it helps :)

Cheers,

James=

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