{ "ok": true, "data": { "title": "Mac_OS", "rev_id": 3295, "updated_at": "2018-03-01T05:37:57+00:00", "chunk_count": 11, "chunks": [ { "title": "Mac_OS", "rev_id": 3295, "heading_path": "", "chunk_index": 0, "content": "# Mac OS", "char_count": 8, "token_estimate": 2 }, { "title": "Mac_OS", "rev_id": 3295, "heading_path": "INSTALLING OPERATING SYSTEM IMAGES ON MAC OS", "chunk_index": 1, "content": "Etcher is typically the easiest option for most users to write images to SD cards, so it is a good place to start.\nIf you're looking for more advanced options on Mac OS, you can use the built-in graphical and command line tools below.\n\n Note: use of the dd tool can overwrite any partition of your machine.\n If you specify the wrong device in the instructions below, you could delete your primary Mac OS partition.\n Please be careful.", "char_count": 443, "token_estimate": 111 }, { "title": "Mac_OS", "rev_id": 3295, "heading_path": "(Mostly) graphical interface", "chunk_index": 2, "content": "Connect the SD card reader with the SD card inside.\nNote that it must be formatted as FAT32.\nFrom the Apple menu, choose 'About This Mac', then click on 'More info...'. If you are using Mac OS X 10.8.x Mountain Lion or newer,\nyou will then need to click on 'System Report'.\nClick on 'USB' (or 'Card Reader' if you are using a built-in SD card reader), then search for your SD card in the upper right section of the window.\nClick on it, then search for the BSD name in the lower right section.\nIt will look something like diskn where n is a number (for example, disk4). Make sure you take a note of this number.\nUnmount the partition so that you will be allowed to overwrite the disk. To do this, open Disk Utility and unmount it.\nDo not eject it. If you eject it, you will have to reconnect it.\nNote that on Mac OS X 10.8.x Mountain Lion, 'Verify Disk' (before unmounting) will display the BSD name as \/dev\/disk1s2 or similar,\nallowing you to skip the previous two steps. Note down the number that appears after 'disk', in this case the number '1'.\nFrom the terminal, run the following command:\n\nsudo dd bs=1m if=path_of_your_image.img of=\/dev\/rdiskn conv=sync", "char_count": 1160, "token_estimate": 290 }, { "title": "Mac_OS", "rev_id": 3295, "heading_path": "(Mostly) graphical interface", "chunk_index": 3, "content": "Remember to replace n with the number that you noted before!\nThis will take a few minutes, depending on the image file size.\nYou can check the progress by sending a SIGINFO signal (press Ctrl+T).\n\\* If this command fails, try using disk instead of rdisk:\n\nsudo dd bs=1m if=path_of_your_image.img of=\/dev\/diskn conv=sync\n\nThis will take a few minutes, depending on the size of the image file.\nTo check the progress, open Activity Monitor, click the Disk tab and find the process with the name dd.\nIf dd is not in the list, you may need to select 'All Processes' from the View menu.\nThe Bytes Read column will display the amount of data that has been read from the image.\nCompare that to the file size of the image to determine progress.\n\n- Command line\n\nIf you are comfortable with the command line, you can write the image to an SD card without any additional software.\nOpen a terminal, then run:\n\ndiskutil list\n\n- Identify the disk (not the partition) of your SD card, e.g. disk4, not disk4s1.\n\nUnmount your SD card by using the disk identifier, to prepare it for copying data:\n\ndiskutil unmountDisk \/dev\/disk", "char_count": 1135, "token_estimate": 284 }, { "title": "Mac_OS", "rev_id": 3295, "heading_path": "(Mostly) graphical interface", "chunk_index": 4, "content": "where disk is your BSD name e.g. diskutil unmountDisk \/dev\/disk4\n\\* Copy the data to your SD card:\n\nsudo dd bs=1m if=image.img of=\/dev\/rdisk conv=sync\n\nwhere disk is your BSD name e.g. sudo dd bs=1m if=2017-11-29-raspbian-stretch.img of=\/dev\/rdisk4 conv=sync\nThis may result in a dd: invalid number '1m' error if you have GNU coreutils installed.\nIn that case, you need to use a block size of 1M in the bs= section, as follows:\n\nsudo dd bs=1M if=image.img of=\/dev\/rdisk conv=sync\n\nThis will take a few minutes, depending on the image file size.\nYou can check the progress by sending a SIGINFO signal (press Ctrl+T).\nIf this command still fails, try using disk instead of rdisk, for example:\n\nsudo dd bs=1m if=2017-11-29-raspbian-stretch.img of=\/dev\/disk4 conv=sync\n\nor\n\nsudo dd bs=1M if=2017-11-29-raspbian-stretch.img of=\/dev\/disk4 conv=sync", "char_count": 884, "token_estimate": 221 }, { "title": "Mac_OS", "rev_id": 3295, "heading_path": "Alternative method", "chunk_index": 5, "content": "Note: Some users have reported issues with using this method to create SD cards,\n possibly because earlier versions of these instructions didn't note that it may be necessary to unmount multiple partitions on the SD card.\n\nThese commands and actions must be performed from an account that has administrator privileges.\n\n- From the terminal run df -h. For example:\n\n", "char_count": 378, "token_estimate": 95 }, { "title": "Mac_OS", "rev_id": 3295, "heading_path": "Alternative method", "chunk_index": 6, "content": "$ df -h\n Filesystem Size Used Avail Capacity iused ifree %iused Mounted on\n \/dev\/disk1 233Gi 73Gi 159Gi 32% 1552273 4293415006 0% \/\n devfs 189Ki 189Ki 0Bi 100% 654 0 100% \/dev\n map -hosts 0Bi 0Bi 0Bi 100% 0 0 100% \/net\n map auto_home 0Bi 0Bi 0Bi 100% 0 0 100% \/home\n Connect the SD card reader with the SD card inside.\n Run df -h again and look for the new device which was not previously listed.\n Record the device name(s) of the filesystem's partition(s),\n for example \/dev\/disk3s5 and \/dev\/disk3s1. Notice the last two lines:\n $ df -h\n Filesystem Size Used Avail Capacity iused ifree %iused Mounted on\n \/dev\/disk1 233Gi 73Gi 159Gi 32% 1552273 4293415006 0% \/\n devfs 189Ki 189Ki 0Bi 100% 654 0 100% \/dev\n map -hosts 0Bi 0Bi 0Bi 100% 0 0 100% \/net\n map auto_home 0Bi 0Bi 0Bi 100% 0 0 100% \/home\n \/dev\/disk3s5 60Mi 20Mi 40Mi 33% 512 0 100% \/Volumes\/boot", "char_count": 1170, "token_estimate": 293 }, { "title": "Mac_OS", "rev_id": 3295, "heading_path": "Alternative method", "chunk_index": 7, "content": "\/dev\/disk3s1 812Mi 740Mi 71Mi 92% 0 0 100% \/Volumes\/RECOVERY", "char_count": 86, "token_estimate": 22 }, { "title": "Mac_OS", "rev_id": 3295, "heading_path": "Alternative method", "chunk_index": 8, "content": "- Unmount the partition(s) so that you will be allowed to overwrite the disk:\n\n\n\nsudo diskutil unmount \/dev\/disk3s5\n sudo diskutil unmount \/dev\/disk3s1\n\nAlternatively, open Disk Utility and unmount the partition of the SD card.\nDo not eject it. If you eject it, you will have to reconnect it.\nUsing the device name of the partition, work out the raw device name for the entire disk by omitting the final s# and replacing disk with rdisk.\n\nThis is very important, as you will lose all data on the hard drive if you provide the wrong device name.\nMake sure the device name is the name of the whole SD card as described above, not just a partition of it,\nfor example, rdisk3, not rdisk3s1. Similarly, you might have another SD drive name\/number like rdisk2 or rdisk4.\nYou can check again by using the df -h command, both before and after you insert your SD card reader into your Mac.\nFor example: \/dev\/disk3s1 becomes \/dev\/rdisk3.\nIn the terminal, write the image to the card with this command, using the raw device name from above.\nRead the above step carefully to make sure that you use the correct rdisk number here:", "char_count": 1129, "token_estimate": 283 }, { "title": "Mac_OS", "rev_id": 3295, "heading_path": "Alternative method", "chunk_index": 9, "content": "sudo dd bs=1m if=2017-11-29-raspbian-stretch.img of=\/dev\/rdisk3 conv=sync\n\nIf the above command reports the error dd: bs: illegal numeric value, change the block size bs=1m to bs=1M.\nIf the above command reports the error dd: \/dev\/rdisk3: Permission denied, the partition table of the SD card is being protected against being overwritten by Mac OS.\n\n<\/pre>\n\n- Erase the SD card's partition table using this command:\n\n\n\nsudo diskutil partitionDisk \/dev\/disk3 1 MBR \"Free Space\" \"%noformat%\" 100%\n\nThat command will also set the permissions on the device to allow writing.\nNow try the dd command again.\n\nNote that dd will not provide any on-screen information until there is an error, or it is finished.\n When the process is complete, information will be shown and the disk will re-mount.\n If you wish to view the progress, you can use Ctrl-T.\n This generates SIGINFO, the status argument of your terminal, and will display information on the process.\n\nAfter the dd command finishes, eject the card:\n\nsudo diskutil eject \/dev\/rdisk3\n\nAlternatively, open Disk Utility and use this to eject the SD card.", "char_count": 1118, "token_estimate": 280 }, { "title": "Mac_OS", "rev_id": 3295, "heading_path": "Alternative method", "chunk_index": 10, "content": "This article uses content from the eLinux wiki page RPi_Easy_SD_Card_Setup, which is shared under the Creative Commons Attribution-ShareAlike 3.0 Unported license", "char_count": 162, "token_estimate": 41 } ] } }