Check partition map on OSX

Subject: Check partition map on OSX
From: Gordon Neault (gordo-x@shaw.ca)
Date: Sun Jan 20 2002 - 23:43:13 MST

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While playing with the Disk Copy .app in OSX, I discovered a feature that
could come in handy when troubleshooting an Linux installation.
Launch Disk Copy, and go to: Image: New Image from Device
A window entitled "Device Selector" appears. It lists a menu of all drives
attached/mounted on your Mac. Click the arrow, and the window will list
all partitions on that drive, including the name, location and file type
of all virtual partitions, including invisible partitions.
Disk Copy uses the folowing syntax:
dev/hda is referred to as disk0
dev/hdb is referred to as disk1
Partitions are referred to as s1, s2, etc.
So:
dev/hda5 is disk0s5

Example: My drive with YDL:
<right arrow> disk0
<down arrow> disk1
        disk1s1 Apple_partition_map
        disk1s2 Apple_Driver43
        disk1s3 Apple_Driver43
        disk1s4 Apple_Driver_ATA
        disk1s5 Apple_Driver_ATA
        disk1s6 Apple_FWDriver
        disk1s7 Apple_Driver_IOKit
        disk1s8 Apple_Patches
        disk1s9 Apple_Bootstrap
        disk1s10 Apple_HFS
        disk1s11 Apple_HFS
        disk1s12 Apple_UNIX_SVR2
        disk1s13 Apple_UNIX_SVR2
        disk1s14 Apple_UNIX_SVR2
        disk1s15 Apple_UNIX_SVR2
        disk1s16 Apple_UNIX_SVR2
<right arrow> disk3 <the CD-ROM drive>

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