Hi, I'm sorry but I've tried so many times to boot using this cd - j10.iso and when I try to mount it always get me this error. I've burned the image using nero - CD, tried this command and can't do this.
qemu -L . -m 256 -boot c -hda j.img -cdrom ..\j10.iso
EDIT
I've tried with another command using
http://blog.gns3.net/2009/10/olive-juniper/4/guide and it mounts me perfect
qemu -m 256 -hda olive-base.img -boot c -localtime \
-net nic,macaddr=00:aa:00:60:01:01,model=e1000 -net user
But after executing this qemu -m 256 -hda olive-base.img -boot c -localtime -nographic -serial stdio
If I try to telnet I can, but can't execute none junos commands
Also I'm trying with jinstall-10.1R1.8-domestic-olive.tgz, didn't extract the unsigned image like is in the guide