Mac OSX - writeimage.sh string indexing error

[Mitoflyboy]

Hi,
I am running OSX 10.12.3, and when I run the 'writeimage.sh' script I get the error:

:: decompressing the gzipped image
./writeimage.sh: line 83: -3: substring expression < 0

After some research it appears that the bash version on OSX doesnt support negative string indexing. The solution is below:

- $gunzip -c $DISK_IMG > ${DISK_IMG::-3}
- DISK_IMG=${DISK_IMG::-3}
+ $gunzip -c $DISK_IMG > ${DISK_IMG::$#-3}
+ DISK_IMG=${DISK_IMG::$#-3}

Thanks

[tommy-rk]

I was creating a motioneyeos sd card today using https://etcher.io/.
Etcher is also recommended by Raspberry Pi installation guide here: https://www.raspberrypi.org/documentation/installation/installing-images/mac.md

Maybe the documentation should be altered and also recommend etcher?

[bortek]

thanks I have updated wiki page with this info
https://github.com/ccrisan/motioneyeos/wiki/Installation

[Choscura]

I was having trouble running writeimage.sh on Fedora25, I was getting a few errors and I'm not sure if I'm doing something wrong or what.

sudo ./writeimage.sh -d /dev/sdb1 -i "motioneyeos-raspberrypi-20170710.img.gz" -n 'secret:secret'
[sudo] password for choscura:
:: decompressing the gzipped image
./writeimage.sh: line 83: motioneyeos-raspberrypi-20170710.img: Is a directory