John Hasler

I have Chrony running right now on an Espressobin V7 running Armbian. Works out of the box.

I second this suggestion. I've been using Chrony for years (I was the initial maintainer of the Debian Chrony package and also made upstream contributions). It's much better suited for these sorts of boards.

Are you saying that Etcher would have automatically removed the offset?

Espressobin V7 1G 800MHz DDR4 RAM 1GHz cpu purchased last week. The board starts up reliably and gets to the boot prompt ok (using minicom). I downloaded and unpacked Armbian_5.91_Espressobin_Debian_buster_next_4.19.59.img. Ran shasum and got "Ok". I dd'd it to a new Samsung SD card, dd'd it back, and ran shasum again, getting "Ok". I put the card in the board and powered it up. It finds the card and tries to boot but fails, saying: Hit any key to stop autoboot: 0 switch to partitions #0, OK mmc0 is current device Failed to mount ext2 filesystem... ** Unrecognized filesystem type ** Failed to mount ext2 filesystem... ** Unrecognized filesystem type ** Bad Linux ARM64 Image magic! I'm guessing that the problem is that I did not update uboot. I copied flash-image-ddr4-1g-1cs-1000_800.bin to a FAT formatted USB key, but this: Updated u-boot needs new default boot environment and new boot script (overwrite the one on your /boot media – needed only if you upgrade from < v5.59). This is what you need to copy/paste into u-boot prompt: is unclear. This: Copy this flash-image-ddr4-1g-1cs-1000_800.bin to your FAT formatted USB key, plug it into USB3.0 port and execute from u-boot prompt: bubt flash-image-ddr4-1g-1cs-1000_800.bin spi usb Seems clear enough. I assume that I am then to paste the list of commands that follows in at the boot prompt but the part about the "new boot script" is unclear. [Edit] I updated uboot and inserted the setenv commands (but ignored the unclear part about the "new boot script"). I'm getting U-Boot 2018.03-devel-18.12.3-gc9aa92c-armbian (Feb 20 2019 - 09:45:04 +0100) so that evidently worked. However, when it tries to boot from the SD card I get Marvell>> run bootcmd_mmc0 / ** Unrecognized filesystem type ** ## Executing script at 06d00000 Wrong image format for "source" command /boot/ ** Unrecognized filesystem type ** ## Executing script at 06d00000 Wrong image format for "source" command Marvell>> [Edit] The SD card is the same one that I used to flash the Uboot update. Is it necessary to prepare the card in any way other than to dd the image to it? [Edit] I loop mounted the image and found that it has an ext4 filesystem with an 8192 block offset. Used dd to make a copy with no offset. That copy boots. -- John Hasler