"File too large" error using dd to back up - Raspberry Pi Forums

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i have standard raspbian system on 8gb card on pi b+
has 6 partitions p1 p6 in mmcblk0
trying empty 64gb usb stick command:

sudo dd if=/dev/mmcblk0 of=/media/pi/pi20150520.img

produces message
dd: writing '/media/pi/pi20150520.img': file large
8388608+0 records in
8388607+1 records out
4294967295 bytes (4.3 gb) copies ....etc

has failed in someway - can explain , me backup working?
thank you

the path "media/pi/pi" memorystick formatted fat file system.
fat filesystem has limit on filesize of 4gb.

can either format usb-stick ext4 or ntfs both supports files larger 4gb.

if format ext4 not able use on windows easily.
if format ntfs work windows, might need manually mount in raspbian. ( never tried myself )


raspberrypi



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