Re: [Trisquel-users] I have tried everything...

[sahil . 92]

There is, in the output file (of=/dev/sdb1). You passed the first partition  
to dd, it should be the disk letter without a partition number (of=/dev/sdb).  
like this:

$ sudo dd if=trisquel_8.0_amd64.iso of=/dev/sdb bs=4M; sync