There are 2 builds for Raspberry Pi.
To determine what type your system is, run readelf -a /usr/lib/libc.so.6 | grep FP or readelf -A /proc/self/exe | grep Tag_ABI_VFP_args. If it's armhf there should be output similar to the following:
Tag_ABI_FP_number_model: IEEE 754
Tag_ABI_HardFP_use: SP and DP
Tag_ABI_VFP_args: VFP registers
The important part is Tag_ABI_VFP_args: VFP registers. If it's not present it's armel.
To run the build for Raspberry Pi do the following.
- Get the latest build from https://insynchq.com/downloads.
- tar -xjf name-of-downloaded-build
- cd insync-portable
- ./insync-portable start
- Add accounts through the ./insync-portable add_account command. For help on Insync commands, run ./insync-portable help.