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To restore a file, first load it the backup from the SD card into memory at 0x700000
zynq-uboot> fatload mmc 0:7 0x700000 uimageimage.backup
reading uimageimage.backup
3678504 bytes read in 629 ms (5.6 MiB/s))
(A backup file may also be loaded into memory using NFS)
Now write the in memory Convert the bytes read count to a hexadecimal value, then write the file to the SD card
zynq-uboot> fatwrite mmc 0:7 0x700000 uimage.backup 0x382128$filesize
writing uimage.backup
3678504 bytes written in 770 ms (4.6 MiB/s)
zynq-uboot>
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