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For a raspberrypi image, mainly there are two partitions, kernel and rootfs. The size of kernel image is 6M. Rootfs is mounted on SD card and its value can be increased using gparted or similar tool. By By default while flashing an image to SD card, two partitions are created, namely mmcblk0p1 and mmcblk0p2. rootfs image is stored in mmcblk0p2 whereas mmcblk0p1 holds boot information.
The details of sd card partions and its sizes can be found using "fdsik -l command"
root@raspberrypi-rdk-hybrid:~# fdisk -l Device Boot StartCHS EndCHS StartLBA EndLBA Sectors Size Id Type |
---|
Boot memory Information
Component | Size |
---|---|
Kernel code | 9216K |
RW data | 737K |
RO data | 2928K |
init | 1024K |
BSS | 853K |
VMALLOC | 1097K |
CMA total | 262K |
KernelStack | 2536 kB |
Shmem | 14596 kB |
tmpfs | 95876k |
devtmpfs | 347800k |
...