Block size for balenaEtcher

tester · June 11, 2019, 6:14pm

Is there a way to specify the transfer block size in Etcher?

For example, with the Linux dd command, we can specify ‘bs’: dd if=imageName of=/dev/sdb bs=1M

If we can’t specify it, can you tell me what block size we default to?

Thank you.

gelbal · June 13, 2019, 10:17am

I reached out to the maintainers of Etcher to ask this.

I don’t see an option in Etcher interface to specify the block size. I guess we use the default value of OS. That would be 512 bytes for Linux.

Cheers…

zvin · June 13, 2019, 10:46am

Etcher writes in 1MiB blocks, this is not configurable.

tester · June 13, 2019, 5:43pm

Ok, thank you. I can try this using ‘count’ when I dd off the USB. Thanks again