olimex@a20-olinuxino:~$ sudo /sbin/olinuxino-sd-to-sata Detecting board... Detecting the root device... Root partition: /dev/mmcblk0p1 Root device: /dev/mmcblk0 Detecting SATA device... SATA partition: /dev/sda1 SATA device: /dev/sda Checking disk size... Required blocks: 1355024 Available blocks: 250069680 Unmount target device... umount: /dev/sda1: not mounted. Copying MBR record... Resizing partition... e2fsck 1.44.5 (15-Dec-2018) ext2fs_open2: Bad magic number in super-block e2fsck: Superblock invalid, trying backup blocks... e2fsck: Bad magic number in super-block while trying to open /dev/sda1 The superblock could not be read or does not describe a valid ext2/ext3/ext4 filesystem. If the device is valid and it really contains an ext2/ext3/ext4 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 or e2fsck -b 32768 resize2fs 1.44.5 (15-Dec-2018) resize2fs: Bad magic number in super-block while trying to open /dev/sda1 Couldn't find valid filesystem superblock. Formating disk... Copying disk... 632,730,175 99% 6.06MB/s 0:01:39 (xfr#21054, to-chk=0/26998) Configuring... Cleanup... Writing u-boot-sunxi-with-spl