Once we have prepared our target file system, then we can write the image, download the latest image from the Raspberry Pi website downloads page to a logical location on your computer and unzip archive file so you can see the raw .img file
so in my case I have
Make sure the disk is inserted, and we can use sudo fdisk -l to list the current file systems attached to the computer
Device Boot Start End Blocks Id System /dev/sda1 * 2048 176319941 88158947 83 Linux /dev/sda2 176320510 488396799 156038145 5 Extended /dev/sda5 484730880 488396799 1832960 82 Linux swap / Solaris /dev/sda6 176320512 484730879 154205184 83 Linux Partition table entries are not in disk order Disk /dev/sdb: 15.7 GB, 15707668480 bytes 255 heads, 63 sectors/track, 1909 cylinders, total 30679040 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0002c262 Device Boot Start End Blocks Id System /dev/sdb1 2048 30679039 15338496 c W95 FAT32 (LBA)
so we can see this that the 16gb file system is /dev/sdb1
We can now use this information to write to the sd card using the instructions I found at :
taking the example from the website
sudo dd bs=1M if=2012-12-16-wheezy-raspbian.img of=/dev/rdisk4
we can now apply our own information to this
so from xterm cd to the directory the image file is in :
sudo dd invokes dd as root
bs=1M = sets block size to 1 Megabyte (this is optional) also note the case, some tutorials had 1m which produced an error.
if=2014-06-20-wheezy-raspbian.img sets the input file to that of the image file
of=/dev/sdb1 = write to device /dev/sdb1
This should write the image to the file system, it may take a while so if you see no activity this is normal.
if you run sudo kill -USR1 `pgrep ^dd`
From a 2nd terminal window you should be able to monitor progress.
The output (similar to below) will appear in the terminal window where you executed the dd command
1219985+0 records in 1219985+0 records out 624632320 bytes (625 MB) copied, 383.039 s, 1.6 MB/s
Keep issuing the above command
For the record
-rw-r–r– 1 psutton psutton 2.8G Jun 20 11:17 2014-06-20-wheezy-raspbian.img
gives you the file size of the image so from this you can calculate the progress percentage if you even want to do that.