ANTMINER S2 Discussion and Support Thread

[ZiG]

Even if you are lucky to have received a working S2, can you be confident that there is no fire hazard?
I'd be monitoring it for at least the first ten hours.
Later I'd consider turning it off when I'm not at home. If it'd be turned on at night, I'd definitively have a smoke detector in the same room as the S2 and made sure it's loud enough to wake me up.

Hey buddy...Just sent it to me...I will watch it 24/7...

[palawan]

thanks, and how do i get it on the system if i cant access it at alll....remove the sd card? and copy onto it?

I recommend that you don't touch the factory SD card.  Buy a new one and use that to flash the image.  It has to be an image copy as it's a bootable image.

[freebit13]

Even if you are lucky to have received a working S2, can you be confident that there is no fire hazard?
I'd be monitoring it for at least the first ten hours.
Later I'd consider turning it off when I'm not at home. If it'd be turned on at night, I'd definitively have a smoke detector in the same room as the S2 and made sure it's loud enough to wake me up.

You don't think Bitmain has tested these things for at least 48hrs before shipping them out? They've had these for weeks, if not months already... personally I wouldn't worry.

[cxboyminer]

I always thought the S2 would look like the S1. I guess im wrong.

Anyone whose S2 is working? How's the ventilation of it?

[palawan]

can someone upload a working backup so i can reflash?

I am dumping the SD image right now, will compress/upload when completed.

Thank you Sir.  I don't have an S2, but I'm curious and would like to download it...  I also have a raspberry pi that I haven't powered up in a while. 

[kano]

can someone upload a working backup so i can reflash?

I am dumping the SD image right now, will compress/upload when completed.

I got one from a distributor but I've not tested it yet ... working on that now.

[Zetler]

Even if you are lucky to have received a working S2, can you be confident that there is no fire hazard?
I'd be monitoring it for at least the first ten hours.
Later I'd consider turning it off when I'm not at home. If it'd be turned on at night, I'd definitively have a smoke detector in the same room as the S2 and made sure it's loud enough to wake me up.

You don't think Bitmain has tested these things for at least 48hrs before shipping them out? They've had these for weeks, if not months already... personally I wouldn't worry.

Well, since so many S2's have been damaged in shipment, you don't know the extent of loose cables etc.
But, what the heck, if you're willing to risk burning down your house, that's your decision. 

[freebit13]

Even if you are lucky to have received a working S2, can you be confident that there is no fire hazard?
I'd be monitoring it for at least the first ten hours.
Later I'd consider turning it off when I'm not at home. If it'd be turned on at night, I'd definitively have a smoke detector in the same room as the S2 and made sure it's loud enough to wake me up.

You don't think Bitmain has tested these things for at least 48hrs before shipping them out? They've had these for weeks, if not months already... personally I wouldn't worry.

Well, since so many S2's have been damaged in shipment, you don't know the extent of loose cables etc.
But, what the heck, if you're willing to risk burning down your house, that's your decision. 

Obviously one would check for loose cables and boards, but if it's not seriously damaged then there's not much that can go wrong. The PSU will have safety switches to trip if there's a short and if it's serious it'll probably not even power on. It's not that I'm willing to risk burning down my house, I'm just not prone to unwarranted FUD.

[buckrogers]

any luck with uploading that image?

[kano]

any luck with uploading that image?

Official one:
https://github.com/AntMiner/AntGen1/tree/master/firmware_S2

[jelin1984]

which must the diff per worker at 1000gh?

1024 or more?

[buckrogers]

any luck with uploading that image?

Official one:
https://github.com/AntMiner/AntGen1/tree/master/firmware_S2

where did this come from?
and how do you install it if you cant access the miner?

[kano]

any luck with uploading that image?

Official one:
https://github.com/AntMiner/AntGen1/tree/master/firmware_S2

where did this come from?
and how do you install it if you cant access the miner?

Eh? That's the official Ant git - you never read the AntS1 manual?
Anyway yeah it's only the initrd file.
I managed to build an SD with that file ... and it boots with IP 192.168.1.100 user root/pass admin

... I don't have an S2 though ...

Edit: well ... I looked at the web page and sigh - still no way to add cgminer options from that page
However it allows you to set this option:
Stop running when temprerature is over 80℃

I wonder what they did there ... my temp management code I wrote for the S1 seemed pretty good actually - no shutting down - simply delaying work between sends until the temp dropped.
Curious (if anyone ever gets the source) what they did there.

Edit2: OK so at a guess ... that initrd they provide is simply written to the SD card in place of the initrd already on there - so it acts like a 'firmware'
- in the System/Upgrade web menu

[nikolaz]

My order was suppose to be delivered today but it seems it will now be delivered on Monday... I really hope someone can write up a review / how to set-up guide.

I will sit-back takes notes as Monday is going to be a long day...

[MrTeal]

Interesting, the cut down BBB in my S2 doesn't output anything out the debug port, just a constant stream of the character "c". I'll try flashing the new image once someone posts one, but I'm thinking I might need a new BBB.

[CroverNo]

Wish I had one to help, but with guys like atadro buying 6 there weren't many to go around.  Being first has its drawbacks, good luck guys, I hope you get it figured out.

You can say that again.  Both of my 2 units are totally fubar'd.  Unit 1 had the Raspberry Pi board popped out of the bus, and several cards were out of their slots, but even after re-seating it (and checking all connections), I can't get any connection to the unit.  The LCD display lights up but there is nothing displayed, and the green light on the LCD never comes on.  The ethernet port seems connected to the switch (switch shows active connection), but 192.168.1.99 cannot be accessed at all via SSH or http or even ping.  Dead for all intents and purposes as far as I can tell.

Unit 2 was a great example of total lack of QC (or else the unit was put in a washing machine and run through the "shake it up and spin" cycle).  Check out the pics below.  I haven't even tried to repair, as the bus connections are so bad (and many are loose) that it is impossible to seat all the boards and even if I could seat them, they would be under great strain.  I can't believe they shipped something like this and I can't believe that shipping damage would be to blame for this one.

UNIT 1 picture:
https://www.dropbox.com/s/by36y8x5kf1kisv/IMG_20140403_195015.jpg

UNIT 2 pictures:
https://www.dropbox.com/s/cintq9xlzazjauy/IMG_20140403_200530.jpg
https://www.dropbox.com/s/qai8pvbt9g8674t/IMG_20140403_200536.jpg
https://www.dropbox.com/s/5s2c1bnes5w3u2c/IMG_20140403_200617.jpg
https://www.dropbox.com/s/tuk1u5gcr5co6ie/IMG_20140403_201159.jpg
https://www.dropbox.com/s/bheoedm33c0l98h/IMG_20140403_201227.jpg
https://www.dropbox.com/s/a0okif3v7horbqy/IMG_20140403_201650.jpg
https://www.dropbox.com/s/e1skmn5p9k7rpjz/IMG_20140403_201704.jpg

It could be shipping damage, except that the boxes arrived in perfect condition, not a scratch or ding to indicate rough handling.

I guess I will find out soon enough whether bitmaintech stands behind its products or not.  

I am NOT paying $3899 for that shit...Period...!

Sorry buddy...and good luck...

Holy Shit dude thats not looking good Bitmain needs to rethink how these are shipped!!

Any news from them today ?

[atadro]

well.. with the 192.168.1.1 line in /etc/init.d/cgminer.sh fixed
doing a:

/etc/init.d/cgminer.sh start

gets me mining...

still no display tho..  I'm thinking one of the other scripts needs to run to update the display..

thanks a bunch.  that got my first one hashing away.  that change plus reseating all boards and cables is prolly required for most to get them running.

well, overnight results are 4 or 6 are at least mostly hashing.  one definitely has a bad power supply and won't power up (the copious dust tells me it did work at one time though).  one runs for about 100k hashes at a time then just shuts off.  of the 4 that are hashing one has a one bad hashing board and one has a dead display.

[Biontic]

ok - so S2 landed about two hours ago
happy to report all cards were as they should be - reseated them all regardless, checked all the conections, all seemed ok
PSU does not look new - VERY dusty
Fired it up: ok
opened browser -> 192.168.1.99: ok
changed pools and IP to my subnet:ok
LCD:ok
restarted: Not hashing
checked all the cables, reseated BBB: all ok.
So now its up and on, but not hashing.
Tried a couple of pools: no change
Switched it from a static IP to DHCP: no change
tried /etc/init.d/cgminer.sh start & /etc/init.d/cgminer.sh restart

Code:

root@antMinerS2-1:~# /etc/init.d/cgminer.sh restart
Restarting Cgminer daemon: killall: cgminer: no process killed
PING 192.168.1.1 (192.168.1.1): 56 data bytes

--- 192.168.1.1 ping statistics ---
1 packets transmitted, 0 packets received, 100% packet loss

Would be most grateful if anyone could anyone give me some pointers on what I need to do to coax it into action?

Also: may not be relevant: but version of cgminer is blank in the 'System/Overview page

edit:for those interested: VAT into Ireland with UPS was €246.43

edit: the logins differ for the different interfaces as follows:
       SSH u:root p:admin
       Browser u:root p:root

[atadro]

ok - so S2 landed about two hours ago
happy to report all cards were as they should be - reseated them all regardless, checked all the conections, all seemed ok
PSU does not look new - VERY dusty
Fired it up: ok
opened browser -> 192.168.1.99: ok
changed pools and IP to my subnet:ok
LCD:ok
restarted: Not hashing
checked all the cables, reseated BBB: all ok.
So now its up and on, but not hashing.
Tried a couple of pools: no change
Switched it from a static IP to DHCP: no change
tried /etc/init.d/cgminer.sh start & /etc/init.d/cgminer.sh restart

Code:

root@antMinerS2-1:~# /etc/init.d/cgminer.sh restart
Restarting Cgminer daemon: killall: cgminer: no process killed
PING 192.168.1.1 (192.168.1.1): 56 data bytes

--- 192.168.1.1 ping statistics ---
1 packets transmitted, 0 packets received, 100% packet loss

Would be most grateful if anyone could anyone give me some pointers on what I need to do to coax it into action?

Also: may not be relevant: but version of cgminer is blank in the 'System/Overview page

edit:for those interested: VAT into Ireland with UPS was €246.43

edit: the logins differ for the different interfaces as follows:
       SSH u:root p:admin
       Browser u:root p:root

is 192.168.1.1 a live node on your network?  if not change that line to your local router's IP.  just changing that value to 172.16.0.1 got most of mine going since that is my local router.  it resets to 192.168.1.1 on reboot though so you have to control cgminer via command line.

[Biontic]

So now its up and on, but not hashing.

is 192.168.1.1 a live node on your network?  if not change that line to your local router's IP.  just changing that value to 172.16.0.1 got most of mine going since that is my local router.  it resets to 192.168.1.1 on reboot though so you have to control cgminer via command line.

Thanks a mill atadro, I had previously changed it to my subnet 192.168.15.1 and then rebooted it. It knocked out the internet for the entire network. Just changed it again but didn't reboot this time.
its hashing now - yabadabadoo.
Thanks again ;-)