Unmount Volumes? Options

[jimmynitcher]

Hi,
I'm about to upgrade Toast to OSX and on their site it advises "unmounting" internal non system drives (I have one for audio).
Is this entirely necessary and if so, how is it done as Apple help search is no use.
I think it is called "ejecting" a volume by Apple but I'm not sure.
Thanks
J

[dixiechicken]

Probably not - but...

Open the terminal-window/application. Make it large.
type dmesg hit enter

Check the text for somthing like this:
Got boot device = IOService:/MacRISC2PE/pci@f2000000/AppleMacRiscPCI/mac-io@17/KeyLargo/ata-4@1f000/KeyLargoATA/ATADeviceNub@0/IOATABlockStorageDriver/IOATABlockStorageDevice/IOBlockStorageDriver/Maxtor 6Y120L0 Media/IOApplePartitionScheme/Macintosh HD@2
BSD root: "disk0s2", major 14, minor 2

the "disk0s2" is the system/boot volume for my flatpanel iMac, your second hd should have a a similar description.
(I put the apostrophes there "" )

In the terminal window type: umount /dev/disk0s2
Hit return

This is the message I get since my iMac:s hd is the only hd I have:
[lgh64b:/private/var] mwiberg# umount /dev/disk0s2
umount: /: Device busy

to mount the drive again:
Reebot the computer or
in the terminal type: mount /dev/disk0s2
Hit return

Replace - disk0s2 - with the description of your second drive.

Cheers: Dixiechciken