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3.231573] ---[ end kernel panic - not syncing: VFS: unable to mount root fs on unknown -block(179.7)In Raspbian there is the SD card copier program (piclone) that will copy the contents of the SD card in the Pi to another SD card in a USB card reader. It will resize the contents to fit the new card.Canedje wrote:Is there a better way to make backup of a SD card fitting to another SD independing its slightly smaller new size?
Yes. I thought I was clear with "In Raspbian there is the SD card copier program"Canedje wrote:Did you mean: "SD card copier" from Raspbian?
mentioned at this link?
https://www.raspberrypi.org/blog/anothe ... -raspbian/
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#!/bin/bash
IMG="$1"
if [[ -e $IMG ]]; then
P_START=$( fdisk -lu $IMG | grep Linux | awk '{print $2}' ) # Start of 2nd partition in 512 byte sectors
P_SIZE=$(( $( fdisk -lu $IMG | grep Linux | awk '{print $3}' ) * 1024 )) # Partition size in bytes
losetup /dev/loop2 $IMG -o $(($P_START * 512)) --sizelimit $P_SIZE
fsck -f /dev/loop2
resize2fs -M /dev/loop2 # Make the filesystem as small as possible
fsck -f /dev/loop2
P_NEWSIZE=$( dumpe2fs /dev/loop2 2>/dev/null | grep '^Block count:' | awk '{print $3}' ) # In 4k blocks
P_NEWEND=$(( $P_START + ($P_NEWSIZE * 8) + 1 )) # in 512 byte sectors
losetup -d /dev/loop2
echo -e "p\nd\n2\nn\np\n2\n$P_START\n$P_NEWEND\np\nW\n" | fdisk $IMG
I_SIZE=$((($P_NEWEND + 1) * 512)) # New image size in bytes
truncate -s $I_SIZE $IMG
else
echo "Usage: $0 filename"
fi
# sudo ./shrink-img-file.sh name of file #If you USB HD is formatted NTFS then yes, it wont work if its FAT32 because FAT32 cant handle files bigger than 4Gb.Canedje wrote:Thanks again for this help.
The image itself is to big to copy to my new SD card, missing some Mb's.
Is it also possible to connect a USB HD with the image on it to my RPI and use your programm?