![]() The best thing? The base model is only $20 $5!.ĭo you know a related subreddit? We'd love to know.Īctually, you have never shown us exactly what you typed. Welcome to /r/raspberry_pi, a subreddit for discussing the raspberry pi credit card sized, ARM powered computer, and the glorious things we can do with it. Pi project ideas: There's a huge list right here on this sub! At time of writing GoogleDrive was not playing nicely with Win32DiskImager - if W32DI won't open you have to quit GD first.Friendly reminder: Please don't just post pictures of unused pis - do a project!Ĭomplete r/raspberry_pi Rules Check the FAQ and Helpdesk here If you use WIn32DiskImager then be sure to check the "Read Only Allocated Partitions" box. Sudo dd if=/dev/sda bs=1M count=21000 of=/mnt/sdcard.img status=progress For example, if your partitions (boot plus root) amount to 20GB then you might clone the first 21GB of the SD card as follows (21GB = bs x count = 1M x 21000) If you use dd (linux) then clone enough of the disk to contain your partition. Now you have a manageable size SD card that you can clone using dd or Win32DiskImager or equivalent. Using parted I shrank it to about 20G - leaving the remainder as unallocated space ( later you can expand into it or make it another partition, at your discretion). Flash the image to a SD card using Raspberry Pi Imager or similar.įor example, in a fit of insanity I used a 256G SD card and discovered it was effectively impossible to back up.Shrink the root partition of the SD card to the size of its contents using parted ( gparted) on a linux machine (such as a rPi).I don't do this because all my projects are based on the Pi Zero (which I usually run 'headless' with a USB/Ethernet 'dongle' on the end of a PoE cable) PS - or, if you are using a Pi B3, by all means start by 'shrinking' the end partition and then add a USB SD card reader/writer and play with 'dd'. img's to many different SD cards and it ACTUALLY WORKS (it seems that most 'guides' on 'How to back-up the Pi' are written by people who have never actually tried to 'restore' their. Please note = This is what I ACTUALLY DO (with my PoE headless Pi Zero projects), and I can assure I have written my. img just fine to any card witb at least 95% of the space of the original) (after which Win32 Imager will 'burn' the. Instead (on the PC) use (free) DiskInternals Linux Reader. img (it will grab every block, you only want to the end partition, not the whole SD card). ī) Finally, DONT USE win32 imager to make your back-up. Then add ' init=/usr/lib/raspi-config/init_resize.sh' back to cmdline.txt and reboot. [find 'TARGET_END=$((ROOT_DEV_SIZE - 1))', change to Then, manually change /usr/lib/raspi-config/init_resize.sh so it ewxpands to 95% of the card, not 100% ' from end of cmdline.txt on the FAT32 partition). img on your PC BEFORE burning to SD so it doesn't 'autoexpand' on first boot-up (remove ' init=. Even if it did, the partition would 'run off the end of the card' and the Pi will abort with 'Corrupted file system' errorsĪ) You have to reduce the partition to 15.5 or so to 'guarantee' it will write back (BEST way is to MODIFY the. ģ) Win32 disk imager WONT WRITE a 15.90 Gb. As compitition drives prices down, SD cards with more and more bad blocks are being 'pssssed' - so 'todays' '16Gb' card will be 15.9 or 15.8 or 15.7 or even less 'tomorrow'. ![]() ![]() All cards have 'bad blocks' that are 'mapped out' during manufacturing. img WONT WRITE BACK to another '16Gb' SD card !ġ) The stupid Pi system autoexpands to every last block of the SD card on FIRST BOOT !! This is stupid because :-Ģ) No two SD cards have the same 'block count'. It's worse than you think = chances are your '16Gb'.
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