Hardware Reference
In-Depth Information
Before inserting your SD cards, do the following:
$ diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme
750.2 GB disk0
1: EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 749.3 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
∗
Check the mounts:
$ mount
/dev/disk0s2 on / (hfs, NFS exported, local, journaled)
...
Insert the SD card:
$ diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme
750.2 GB disk0
1: EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 749.3 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme
∗
3.9 GB disk1
1: Windows_FAT_32 58.7 MB disk1s1
2: Linux 3.8 GB disk1s2
∗
Unmount any automounted partitions for
disk1
:
$ diskutil unmountDisk /dev/disk1
Unmount of all volumes on disk1 was successful
$
Likewise, insert the destination SD card and use
diskutil
to get its device name
(mine was
/dev/disk2
). Unmount all file systems that may have been automounted for it
(
diskutil unmountDisk
).
At this point, you can perform a file system image copy:
$ dd if=/dev/disk1 of=/dev/disk2 bs=1024k
3724+0 records in 3724+0 records out
3904897024 bytes transferred in 2571.524357 secs (1518515 bytes/sec)
$