M
-bash-3.2# diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS OS X Base System 499.8 GB disk0s2
/dev/disk1 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +5.2 MB disk1
/dev/disk2 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk2
/dev/disk3 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk3
/dev/disk4 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk4
/dev/disk5 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +2.1 MB disk5
/dev/disk6 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk6
/dev/disk7 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk7
/dev/disk8 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +12.6 MB disk8
/dev/disk9 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +4.2 MB disk9
/dev/disk10 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +1.0 MB disk10
/dev/disk11 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +2.1 MB disk11
/dev/disk12 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk12
/dev/disk13 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk13
/dev/disk14 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +1.0 MB disk14
/dev/disk15 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +6.3 MB disk15
/dev/disk16 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +6.3 MB disk16
/dev/disk17 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk17
/dev/disk18 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +2.1 MB disk18
/dev/disk19 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *15.5 GB disk19
1: EFI EFI 209.7 MB disk19s1
2: Apple_HFS OS X Base System 15.2 GB disk19s2
-bash-3.2#
bless --info /Volumes/"OS X Base System 1"
diskutil list
-bash-3.2# diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS OS X Base System 499.8 GB disk0s2
/dev/disk1 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +5.2 MB disk1
/dev/disk2 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk2
/dev/disk3 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk3
/dev/disk4 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk4
/dev/disk5 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +2.1 MB disk5
/dev/disk6 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk6
/dev/disk7 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk7
/dev/disk8 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +12.6 MB disk8
/dev/disk9 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +4.2 MB disk9
/dev/disk10 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +1.0 MB disk10
/dev/disk11 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +2.1 MB disk11
/dev/disk12 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk12
/dev/disk13 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk13
/dev/disk14 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +1.0 MB disk14
/dev/disk15 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +6.3 MB disk15
/dev/disk16 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +6.3 MB disk16
/dev/disk17 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk17
/dev/disk18 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +2.1 MB disk18
/dev/disk19 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *15.5 GB disk19
1: EFI EFI 209.7 MB disk19s1
2: Apple_HFS OS X Base System 15.2 GB disk19s2
-bash-3.2#
diskutil mount disk19s2
df -H
-bash-3.2# df -H
Filesystem Size Used Avail Capacity iused ifree %iused Mounted on
/dev/disk0s2 500G 1.3G 498G 1% 45181 4294922098 0% /
devfs 202k 202k 0B 100% 684 0 100% /dev
/dev/disk1 5.2M 569k 4.7M 11% 19 4294967260 0% /private/var/log
/dev/disk2 524k 147k 377k 29% 4 4294967275 0% /Volumes
/dev/disk3 524k 147k 377k 29% 7 4294967272 0% /private/var/tmp
/dev/disk4 524k 160k 365k 31% 12 4294967267 0% /private/var/run
/dev/disk5 2.1M 143k 2.0M 7% 2 4294967277 0% /private/tmp
/dev/disk6 524k 143k 381k 28% 2 4294967277 0% /System/Installation
/dev/disk7 524k 303k 221k 58% 20 4294967259 0% /private/var/db
/dev/disk8 13M 3.1M 9.5M 25% 58 4294967221 0% /private/var/folders
/dev/disk9 4.2M 205k 4.0M 5% 22 4294967257 0% /private/var/root/Library
/dev/disk11 2.1M 143k 2.0M 7% 2 4294967277 0% /private/var/root/Library/Containers
/dev/disk12 524k 188k 336k 36% 11 4294967268 0% /Library/Preferences
/dev/disk13 524k 164k 360k 32% 6 4294967273 0% /Library/Preferences/SystemConfiguration
/dev/disk14 1.0M 184k 864k 18% 6 4294967273 0% /Library/Keychains
/dev/disk15 6.3M 176k 6.1M 3% 2 4294967277 0% /private/var/tmp/RecoveryTemp
/dev/disk16 6.3M 176k 6.1M 3% 2 4294967277 0% /private/var/tmp/OSISPredicateUpdateProductTemp
/dev/disk17 524k 143k 381k 28% 2 4294967277 0% /private/var/tmp/InstallerCookies
/dev/disk18 2.1M 143k 2.0M 7% 2 4294967277 0% /Library/Logs/DiagnosticReports
/dev/disk19s2 15G 1.3G 14G 9% 45181 4294922098 0% /Volumes/OS X Base System 1
-bash-3.2#
bless --info /Volumes/"OS X Base System 1"
-bash-3.2# bless --info /Volumes/"OS X Base System 1"
finderinfo[0]: 34 => Blessed System Folder is /Volumes/OS X Base System 1/System/Library/CoreServices
finderinfo[1]: 45174 => Blessed System File is /Volumes/OS X Base System 1/System/Library/CoreServices/boot.efi
finderinfo[2]: 2 => 1st dir in open-folder list is /Volumes/OS X Base System 1/
finderinfo[3]: 0 => No alternate OS blessed file/folder
finderinfo[4]: 0 => Unused field unset
finderinfo[5]: 34 => OS X blessed folder is /Volumes/OS X Base System 1/System/Library/CoreServices
64-bit VSDB volume id: 0xD7C8E8434AA5FE65
-bash-3.2#
diskutil eraseVolume jhfs+ BOOT disk19s2
-bash-3.2# diskutil eraseVolume jhfs+ BOOT disk19s2
Started erase on disk19s2 OS X Base System
Unmounting disk
Erasing
Initialized /dev/rdisk19s2 as a 14 GB case-insensitive HFS Plus volume with a 8192k journal
Mounting disk
Finished erase on disk19s2 BOOT
-bash-3.2#