- RASPBERRY PI IMAGE RESIZE SOFTWARE PRO
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dev/mapper/cryptroot is active and is in use. Rebooting and verifyingĪfter rebooting, all changes are applied properly: $ reboot Note, that the partition size of 7720844 Bytes (~8 GB) is still indicated. Old_desc_blocks = 1, new_desc_blocks = 4 The filesystem on /dev/mapper/cryptroot is now 7720844 (4k ) blocks long. Resize2fs 1.44.5 (1 ) Filesystem at /dev/mapper/cryptroot is mounted on / on-line resizing required Once this is done, use resize2fs to resize the partition: $ resize2fs /dev/mapper/cryptroot Calculating new LUKS partition sizeĪfter extending the partition via parted, the new LUKS partition size needs to be calculated via cryptsetup as well: $ cryptsetup resize cryptrootĮnter passphrase for /dev/mmcblk0p2: raspberry The command resizepart will be used to extend the partition, where -1 defines the last sector of the SD card.
Welcome to GNU Parted! Type 'help' to view a list of commands. In order to extend the second partition, execute the following commands: $ parted "/dev/mmcblk0" GNU Parted 3.2 This indicates, that /dev/mmcblk0p2 ( /dev/mapper/cryptroot) only has a size of 7676 MB, but the SD card's total capacity is 31.9 GB. Number Start End Size Type File system Flags Sector size (logical/physical ): 512B/512B
Model: SD SC32G (sd/mmc ) Disk /dev/mmcblk0: 31.9GB Sector size (logical/physical ): 4096B/4096B Model: Linux device-mapper (crypt ) (dm ) Disk /dev/mapper/cryptroot: 7659MB Creating a backup of the SD cardīefore doing any changes, create a backup of the SD card, since the following commands can corrupt data: $ dd if = "/dev/sdx" of = "raspberrypi_sd_card_backup_before_resize.img" bs = "512b" conv = "fdatasync" status = "progress" Analysing the root partitionĪfter that, boot into Raspbian and check the partition structure via parted: $ parted -list
RASPBERRY PI IMAGE RESIZE SOFTWARE FREE
Therefore, it needs to be extended in order to use the unused free space. When copying the image to another SD card with a higher capacity, the encrypted root partition will stay at ~8 GiB. Gpg: Good signature from "Ramon Fischer " gpg: aka "Ramon Fischer " Copying the image to the SD cardĬopy the image to the SD card: $ dd if = "raspberrypi_sd_card_backup.img" of = "/dev/sdx" bs = "512b" conv = "fdatasync" status = "progress" Resizing the root partition $ gpg -verify "raspberrypi_sd_card_" "raspberrypi_sd_card_backup.img" gpg: Signature made Mon Mar 22 06:16:43 2021 CET If the links are dead, due to infrequent downloads, please proceed with Encrypting the root partition manually.Ĭheck the data integrity and verify the signature: $ b2sum -check "raspberrypi_sd_card_2" raspberrypi_sd_card_backup.img: OK
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The capacity of the SD card must be greater than 8 GiB.Įither download the files manually from the release page or download them via direct links: $ aria2c -min-split-size = "20M" -split = "4" -max-connection-per-server = "8" -force-sequential = "true" \.linux-image-5.0 (Linux Kernel 5.0) or higher and cryptsetup-2.0.6 or higher are required to support the fast software-based encryption method aes-adiantum-plain64, since the Raspberry Pi's CPU does not support hardware accelerated AES ( grep "Features" "/proc/cpuinfo").Please read Known issues first before following any of the instructions! Using the modified image Prerequisites
RASPBERRY PI IMAGE RESIZE SOFTWARE PRO
The entire setup was done on a Banana Pi Pro with Armbian Buster (mainline based kernel 5.10.y). They should also work on image files with partition information in general. The instructions are adaptable for other Raspberry Pi revisions as well. This repository shall describe all necessary steps in order to encrypt the root partition of the Raspberry Pi stock image Raspberry Pi OS Lite currently Debian 10 (Buster) on a Raspberry Pi Model B Rev 2. Reverting the modifications of the bootloader.Adapting the modifications of the bootloader.Decrypting the root partition from the image.Changing the UUID of the root partition.
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