# NAS (i486) - Error : Illegal instruction
**URL:** https://forum.syncthing.net/t/nas-i486-error-illegal-instruction/1095
**Category:** Support
**Created:** [October 10, 2014, 10:20am UTC](https://forum.syncthing.net/t/nas-i486-error-illegal-instruction/1095 "2014-10-10T10:20:37Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@alekons](https://forum.syncthing.net/u/alekons)
#### Post date: [October 10, 2014, 10:20am UTC](https://forum.syncthing.net/t/nas-i486-error-illegal-instruction/1095/1 "2014-10-10T10:20:37Z")
Hi all,
I can’t say how impressed i am with Syncthing. I was looking for an alternative to get rid dropbox and BTsync and finally i found it.
I am trying to set up my environment and so far i managed to sync one NAS and one Win pc. My issue is that i am trying to set up my second NAS for disaster recovery backup ( as my experience with NAS devices is bad).
The hardware i have is an old Linksys NAS 200 which is an i486 device. I downloaded the 386 linux version (syncthing-linux-386-v0.10.0.tar.gz) and tried to run it on NAS without luck.
Hardware info: `
$ cat /proc/cpuinfo
processor : 0
vendor_id : unknown
cpu family : 4
model : 0
model name : 486
stepping : unknown
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : no
fpu_exception : no
cpuid level : -1
wp : yes
flags :
bogomips : 49.76
`
When i try to run the binary i am getting the following error : `
$ ls -l sync*
-rwxrwxrwx 1 root 0 8137744 Oct 8 14:05 syncthing
$ ./syncthing
Illegal instruction
$
`
Any idea ?
Thx Alex
---
### Author:  [@AudriusButkevicius](https://forum.syncthing.net/u/AudriusButkevicius)
#### Post date: [October 10, 2014, 10:36am UTC](https://forum.syncthing.net/t/nas-i486-error-illegal-instruction/1095/2 "2014-10-10T10:36:45Z")
Please see [https://github.com/syncthing/syncthing/issues/749](https://github.com/syncthing/syncthing/issues/749) Let me know if it helps.
---
### Author:  [@alekons](https://forum.syncthing.net/u/alekons)
#### Post date: [October 10, 2014, 10:57am UTC](https://forum.syncthing.net/t/nas-i486-error-illegal-instruction/1095/3 "2014-10-10T10:57:52Z")
Tried the version syncthing-linux-386-v0.10.0+6-g6e670a2.tar.gz but i am still getting the same error
`
$ ./syncthing
Illegal instruction
`
How can i enable logging when i execute the binary ?
---
### Author:  [@alekons](https://forum.syncthing.net/u/alekons)
#### Post date: [October 10, 2014, 11:02am UTC](https://forum.syncthing.net/t/nas-i486-error-illegal-instruction/1095/4 "2014-10-10T11:02:44Z")
Some additional info about the hardware:
NAS200 has an RDC 3210 System On Chip. This basically emulates a headless PC running a 486SX processor at 133MHz
---
### Author:  [@calmh](https://forum.syncthing.net/u/calmh)
#### Post date: [October 10, 2014, 1:12pm UTC](https://forum.syncthing.net/t/nas-i486-error-illegal-instruction/1095/5 "2014-10-10T13:12:18Z")
Did you try the [static build](http://build.syncthing.net/job/syncthing-static/) (it’s not visible from the version output if that is what you’re running, unfortunately). That’s the minimum baseline we can build, excluding SSE instructions. It does however require hardware floating point, and you mention 486sx so maybe that’s an issue.
On the other hand, the 486sx is 23 years old now; it might be time to move on. 😉
---
### Author:  [@system](https://forum.syncthing.net/u/system)
#### Post date: [May 12, 2017, 12:57pm UTC](https://forum.syncthing.net/t/nas-i486-error-illegal-instruction/1095/6 "2017-05-12T12:57:01Z")