• Homebrew, PS3 Hacks , 18.09.2010

    Ok guys so good news at last, one of our IRC members c4pt has just managed to get the otheros installer working on his ps3. But as for now it wont load anything as you can see from these pictures. This is the installer showing up as ready to load but when you try to run the installer you get this error

    Below is a bad quality video of the current process. Time will tell if we have otheros working eventually.




    Stay tuned for more news as it happens

    Thanks again to c4pt for this work

    Tags:

    Discuss in Forums (60)


  • 60 Comments

    1. Pockets69
      09-18-2010
      04:40 PM
      1

      thanks for your efforts c4pt and thanks for the news Weed btw a custom firmware or whatever that will allow us to boot otherOS won't take long.

    2. c4pt
      09-18-2010
      04:46 PM
      2

      putting otheros.bld in PS3>OTHEROS>otheros.bld

      gets past this error

    3. Typo
      09-18-2010
      04:51 PM
      3

      Originally Posted by c4pt
      putting otheros.bld in PS3>OTHEROS>otheros.bld

      gets past this error
      Are you saying that you can now successfully install linux????

    4. taga7a
      09-18-2010
      04:52 PM
      4

      EVERY SECOND it seems like we are opening up more potential to the console

      1-psjailbreak/psgroove
      2-PS3 FTP and backup manager
      2.5-running ps3 games off of the psp through remoteplay
      3-homebrew file manager
      4-firmware emulation via usb drive

      and now these coming up

      A. PSP EMULATION
      B. DREAMCAST EMULATION
      C. UNLOCKING OTHEROS

      woohooo! it won't be long until a custom firmware comes out!!!!

    5. Pockets69
      09-18-2010
      04:54 PM
      5

      do you get another error bud?

      what about doing PS3/OTHEROS/ and putting otheros.self and otheros.bld in the memory stick (you know like it was back when there was otherOS)

      don't think it will work cause there is no way of selecting which OS to run like before, but its an idea.

    6. Ozz
      09-18-2010
      04:57 PM
      6

      RIP THAT SUCKER OPEN. The flood gates have been opened, I seems that the PS3 wasn't as secure as they thought. It did take 4+ years to hack it but now everything just keeps pouring out.
      Keep it up

    7. c4pt
      09-18-2010
      05:04 PM
      7

      no i am saying its 100% functional all i am showing is that otheros.self can be once again run now as a renamed EBOOT.BIN file in a game folder in the USRDIR of LAUN12345 just make a backup of the EBOOT.BIN file for the game via ftp and transfer the renamed otheros.self file (EBOOT.BIN) to the same folder then run the game from backup manager and select the game from xmb it will try and run otheros installer and otheros installer looks for an otheros.bld file from the usb stick in PS3>OTHEROS>otheros.bld it installs then exits because the GameOS menu is still hidden with the current firmware
      (3.41) so we are waiting on now for a way to re enable the menu option from System Settings > Default OS > Game OS


    8. muny21
      09-18-2010
      05:07 PM
      8

      wow title of thread is a bit misleading. but nice progress either way. i thought it was accomplished but it is still in the works. got my hopes up for a second. keep up the good work.

    9. Turnad0z
      09-18-2010
      05:16 PM
      9

      i appreciate the authors hard work, but shouldnt the coders focus on making a bypass or a CFW of some sort

    10. japsander
      09-18-2010
      05:18 PM
      10

      ok i think i just made a little man juice...
      keep up the awsome work while i go mop myself up
      ************* [ - Post Merged - ] *************

      Originally Posted by Turnad0z View Post
      i appreciate the authors hard work, but shouldnt the coders focus on making a bypass or a CFW of some sort
      theres no point yet until 3.5 is examined.
      bypassing 3.42 this early may only just give sony the way to block it. otheros on the other hand is worth losing psn for.

    11. boob4me
      09-18-2010
      05:30 PM
      11

      Sorry this is off topic, but can we still update backup games? I started to update dantes infernal but canceled, didnt know if it would mess something up . Thanks in advance

    12. weed37
      09-18-2010
      05:39 PM
      12

      Originally Posted by japsander View Post
      ok i think i just made a little man juice...
      keep up the awsome work while i go mop myself up
      You made me spill my tea everywhere :D

    13. nu1mlock
      09-18-2010
      05:42 PM
      13

      Originally Posted by boob4me View Post
      Sorry this is off topic, but can we still update backup games? I started to update dantes infernal but canceled, didnt know if it would mess something up . Thanks in advance
      Yes, of course.

      Edit: Err, read this wrong. Never mind.

    14. boob4me
      09-18-2010
      05:55 PM
      14

      sorry but it wont update backup games running off interna hd.Just tried with dantes, and an error 8002..... came up anybody else??

    15. Pockets69
      09-18-2010
      05:57 PM
      15

      EPICNESS

      ok i think i just made a little man juice...
      keep up the awsome work while i go mop myself up
      You made me spill my tea everywhere :D
      anyway, we just need a way to re-enable the otherOS option, Ill have a look at the vsh folder in the flash see if i get lucky :P i ll post my results tomorrow.

    16. nu1mlock
      09-18-2010
      06:01 PM
      16

      Originally Posted by boob4me View Post
      sorry but it wont update backup games running off interna hd.Just tried with dantes, and an error 8002..... came up anybody else??
      You can't update games on the HDD, I read your post wrong. But that doesn't belong here. Please post those questions in the correct thread.

    17. devil hunter
      09-18-2010
      06:09 PM
      17

      i know this sounds crazy , but you can compare with other ps3 that is jailbroken and has

      the otherOS function with the filemanager . unless you like try and error . nice job bro.

    18. nu1mlock
      09-18-2010
      06:13 PM
      18

      Originally Posted by devil hunter View Post
      i know this sounds crazy , but you can compare with other ps3 that is jailbroken and has

      the otherOS function with the filemanager . unless you like try and error . nice job bro.
      There are no jailbroken consoles with OtherOS enabled.

    19. devil hunter
      09-18-2010
      06:18 PM
      19

      i thought there were many as the manual of ps3jailbreak dongle mention it . However ,

      i remember geohotz mentioned the name of the otherOs function but i cant find it,

      maybe if somebody has a copy of his blog will help us .

    20. jfeddd
      09-18-2010
      08:19 PM
      20

      c4pt i could not get it to work when i tryed it i guess ill try a diffrent game

    21. ogredeschnique
      09-18-2010
      08:21 PM
      21

      Originally Posted by c4pt View Post
      putting otheros.bld in PS3>OTHEROS>otheros.bld

      gets past this error
      So, I guess the main post needs updated then right?
      Since it's working... ?

    22. SniperSnake
      09-18-2010
      08:36 PM
      22

      i believe i deserve some credit her guys, im not a glory whore but this was my idea that i posted on the forums allready, and i was the one who told c4pt on irc about renaming the otheros.self to eboot.bin, but trying to compile it into a homebrew app.pkg file, he managed to figure out a way and if i had my ps3 jb teesny by now i would be contributing more, but for now all i can do is post up my theorys for others to try...


      OK SO HERE IS A NEW IDEA TO GET THE SWITCH TO OTHEROS BACK ON 3.2x+ SYSTEMS, DUMP THE FLASH FROM A 3.15 PS3, GET TO CORRESPONDING FILES THAT ENEABLE THAT OPTION, AND ADD IT TO THE USB FW

    23. penguito
      09-18-2010
      09:42 PM
      23

      This is interesting!!

    24. jPaul
      09-19-2010
      12:41 AM
      24

      wait for it....WAIT FOR IT!!
      OTHER OS > LINUX > ANOTHER HACK
      MOOOOOHAHAHAHAHAHAH
      SONY HAS JUST LOST THE WAR

    25. c4pt
      09-19-2010
      01:04 AM
      25

      ************UPDATE***************

      thank you iLLNESS for the aerialx otheros.zip

      you can get it here

      http://psx-scene.com/forums/attachme...7&d=1284875854

      much appreciation for helping with aerialX instead of using bm 1.0 to load eboot.bin

    26. tigertailz
      09-19-2010
      01:53 AM
      26

      woot it works now?

    27. netkas
      09-19-2010
      02:04 AM
      27

      that game menu basicaly write something to nvram and restarts console, thiscan be done without menu entry i believe

    28. japsander
      09-19-2010
      04:25 AM
      28

      im interested to know what would happen when otheros is installed and bootable.

      what would happen when booting with a jailbreak? would this give us any more uses or would it work at all?

      it would be awesome for me to be able to boot linux and be able to launch games from there with maybe a method similar to xlink kai built in. i could quite happily get rid of my pc into a cupboard then.

    29. krauster
      09-19-2010
      05:09 AM
      29

      a noob with a thought, would restoring your ps3 to factory settings bring back the other os on the xmb

    30. nu1mlock
      09-19-2010
      05:10 AM
      30

      Originally Posted by krauster View Post
      a noob with a thought, would restoring your ps3 to factory settings bring back the other os on the xmb
      No, it won't. You'll still have the same firmware you had before restoring.

    31. mjkinney84
      09-19-2010
      08:18 AM
      31

      If otherOS is re - enabled through a hack, just wondering would the slim ps3 be capable of running it or is there some hardware missing from it all together that would make it impossible.

    32. Pockets69
      09-19-2010
      08:20 AM
      32

      yes the slim would run it.

    33. ps3fan10
      09-19-2010
      08:22 AM
      33

      Originally Posted by c4pt View Post
      ************UPDATE***************

      thank you iLLNESS for the aerialx otheros.zip

      you can get it here

      http://psx-scene.com/forums/attachme...7&d=1284875854

      much appreciation for helping with aerialX instead of using bm 1.0 to load eboot.bin
      Hi. This is my first post. What does this (otheros.zip) do?

    34. Pockets69
      09-19-2010
      08:24 AM
      34

      allows you to install the otherOS again, there is no way to boot into it and install linux yet! just sit back and relax.

    35. weeman45
      09-19-2010
      08:35 AM
      35

      Originally Posted by Pockets69 View Post
      yes the slim would run it.
      You just made my day! :D
      I just hope to get a new jailbreak device since I lost my ipod when I was drunk ;(

    36. Pockets69
      09-19-2010
      08:36 AM
      36

      LOL, well, get an iphone XD or get an android, or a dev board! (your best option).

    37. mjkinney84
      09-19-2010
      08:46 AM
      37

      Thanks for the quick response pockets69. To weeman you could also get a ti-84 calculator. That is what I am using and i love it.

    38. domatas
      09-19-2010
      09:08 AM
      38

      I'm not an oracle but I have a thing to tell you.

      Click the following image link:
      http://image.bayimg.com/papiiaacc.jpg

      Do you see a "3D" text written on that bundle dvd box at the right?
      I have a feeling that GT5 will require fw 3.50 which is the only one to support 3D natively.

    39. japsander
      09-19-2010
      09:31 AM
      39

      Originally Posted by domatas View Post
      I'm not an oracle but I have a thing to tell you.

      Click the following image link:
      http://image.bayimg.com/papiiaacc.jpg

      Do you see a "3D" text written on that bundle dvd box at the right?
      I have a feeling that GT5 will require fw 3.50 which is the only one to support 3D natively.
      well we all knew newer games would require latest fw but we can either wait till a fix is released or buy another ps3.
      theres no way in hell im losing this hack by updating like i did when otheros was blocked but theres no way in hell im missing out on gt5 either lol.

      sony may even try and change the encryption on the game discs to stop backup manager working altogether on these games to prevent patching etc.

      only time will tell. its the risk we all take and we have to take the consequenses as well

    40. lernatix
      09-19-2010
      09:35 AM
      40

      Originally Posted by domatas View Post
      I have a feeling that EVERY GAME MADE FROM NOW ON will require fw 3.50 which is the only one to support 3D natively.
      ftfy

      I doubt this comes as a surprise to anyone. Maybe one day I will update for GT5. Until then, going to enjoy my payback for Linux removal. :aetsch:

    41. Ozz
      09-19-2010
      10:02 AM
      41

      Just a thought...
      If they get OtherOS installed and able to run Linux or other OS's with the hack, Don't you think the ability to access the graphics processor will be easier.

    42. Pockets69
      09-19-2010
      10:05 AM
      42

      it is easier, but don't think it will allow 3D just because we can do this, its a very complicated process, only updating to 3.50 you will be able to have 3D, lets just hope that something will be found.

    43. Shockwave
      09-19-2010
      10:33 AM
      43

      this is so awesum the ps3 scene is evolving so fast, i cant keep up with all the updates

    44. lernatix
      09-19-2010
      10:39 AM
      44

      I think he means RSX access Pockets69, not 3D TV ability.

      IF, and it's a big if, otherOS is restored I don't know if we can bypass the hypervisor (I hope so!) or if a XMB-homebrew based loader would be needed. (I really want to know the answer to that!) There were some people who were working on a driver for RSX but they lost interest in trying to beat the hypervisor, I prey it (the hypervisor) can be bypassed and that they are then motivated to continue their work.

    45. Pockets69
      09-19-2010
      10:59 AM
      45

      well people were already talking about 3D, i thought he was talking about it, anyway, if the otherOS will be recovered through a normal methood of enabling that option, i imagine that it will still be blocked, but if we are talking about a true hack (not only enable an option) then we will have a fully unrestricted acess to RSX.
      this is my taught i could be wrong though.

    46. SuperDre
      09-19-2010
      12:57 PM
      46

      Originally Posted by Ozz View Post
      RIP THAT SUCKER OPEN. The flood gates have been opened, I seems that the PS3 wasn't as secure as they thought. It did take 4+ years to hack it but now everything just keeps pouring out.
      Keep it up
      Well, the PS3 hasn't actually been hacked yet.. everything you see now goes through the Debugmode which allowes running unsigned code..

      Originally Posted by domatas View Post
      I'm not an oracle but I have a thing to tell you.

      Click the following image link:
      http://image.bayimg.com/papiiaacc.jpg

      Do you see a "3D" text written on that bundle dvd box at the right?
      I have a feeling that GT5 will require fw 3.50 which is the only one to support 3D natively.
      Uhh.. 3D for gaming was already present in 3.30, FW3.5 add 3D playback support for bluray MOVIES.. but it all depends on when GT5 has gone 'gold', if they are still developing it then it will require FW3.5 (or even a higher one).

      Also trying to find out how to get 3.42 working again won't matter for 3.5, Sony will send this patch this week which means it's ready, and fixing a new hack will take some time.. BUT don't think sony isn't trying to find better ways to secure their console, through PSN-acces ofcourse.. Which means most new games will have at least PSN-access needed for online gaming (whereas in the past they might have had their own servers completely which is why some online games still work on older FW's).. Also look at every new FW for the PSP which get's more solid and are more difficult to really hack... The PSP has given Sony a lot of knowledge into securing their device even before the PS3 which also has given them better knowledge.. It will be harder and harder to hack new FW's...

      If they get OtherOS support working on 3.41 I might as well update to that firmware (when I get a device which let's you jailbreak) as now I also cannot access PSN anyway as I'm still on 3.15..

      And if we might believe Geohotz, the RSX isn't hindered by the hypervisor, but by the lack of driver..

    47. neelglxx
      09-19-2010
      01:20 PM
      47

      c4pt - 09-18-2010 04:04 PM

      no i am saying its 100% functional all i am showing is that otheros.self can be once again run now as a renamed EBOOT.BIN file in a game folder in the USRDIR of LAUN12345 just make a backup of the EBOOT.BIN file for the game via ftp and transfer the renamed otheros.self file (EBOOT.BIN) to the same folder then run the game from backup manager and select the game from xmb it will try and run otheros installer and otheros installer looks for an otheros.bld file from the usb stick in PS3>OTHEROS>otheros.bld it installs then exits because the GameOS menu is still hidden with the current firmware
      (3.41) so we are waiting on now for a way to re enable the menu option from System Settings > Default OS > Game OS
      u should talk to: http://www.lan.st/showthread.php?t=3249&page=2

      qwssop # lan.st

      O.K changed the mem patch to patch in the network_tool2.xml I mentioned earlier. On selecting a user the system resets to safe mode(insert usb cable into ps3 controller etc etc).

      I worked under the assumption that '_tool2.xml' was being appended to a system config_game.xml call and that I had to patch the previous memory locations to add the full 'network_tool2.xml' to the mem patch. Juggling hex bytes is fun, the AerialX fork of the psgroove git hub effort is awesome. Really worth looking into if you want to test patches easily.

      Need to review my patch code.

      For reference:

      Code:

      memory_patch_table_3:
      PATCH_DATA(0x0022B884, 0x6E657477)
      PATCH_DATA(0x0022b888, 0x6F726B5F)
      PATCH_DATA(0x0022b88c, 0x746F6F6C)
      PATCH_DATA(0x0022b890, 0x322E786D)
      PATCH_DATA(0x0022b894, 0x6C23726F)
      PATCH_DATA(0x0022b898, 0x6F740000)
      .long 0
      memory_patch_table_4:
      PATCH_DATA(0x000d68b4, 0x6E657477)
      PATCH_DATA(0x000d68b8, 0x6F726B5F)
      PATCH_DATA(0x000d68bc, 0x746F6F6C)
      PATCH_DATA(0x000d68c0, 0x322E786D)
      PATCH_DATA(0x000d68c4, 0x6C23726F)
      PATCH_DATA(0x000d68c8, 0x6F740000)
      .long 0

      The first set of hex bytes in Patch_Data being the address, the second the value.
      (p.s had to install fedora to get ppu-gcc working for compiling AerialX's psgroove fork).

      I checked the patch values and it seems I missed out four bytes. Once I addressed them the system loads like normal but I cannot see any differences to the xmb layout.

      (EDIT #4 by this point)

      I was wrong. It seems I have spawned the network menu in place of the game menu(i.e all the items that are under the Network section are also present in the Game section. No new items, will need to look at those xml files again...

      (Edit #5)
      Enabling 'sysconf_shop.xml' spawns a couple of icons that don't link to anything(dead links to old resources I guess... may be good for putting something in their path.... i.e otherOs if we need a link on the main menu to it)
      __________________
      Qui non intelligit, aut taceat, aut discat. ("If you do not understand, be silent, or learn.")
      cus he is doing exactly what u need to finish this , and get it to work :D

    48. Gorgatron
      09-19-2010
      09:33 PM
      48

      Does this repartition hard drives like the old tool? Ideally I'd like to set aside a partition for another OS before I start backing up my games. Otherwise would a homebrew partition editor be possible?

    49. advocatusdiaboli
      09-20-2010
      01:47 AM
      49

      Originally Posted by Pockets69 View Post
      well people were already talking about 3D, i thought he was talking about it, anyway, if the otherOS will be recovered through a normal methood of enabling that option, i imagine that it will still be blocked, but if we are talking about a true hack (not only enable an option) then we will have a fully unrestricted acess to RSX.
      this is my taught i could be wrong though.
      The only 3D issue known with OtherOS is that of the RSX chip, AFAIK.
      ************* [ - Post Merged - ] *************
      For some reason I think a PS3GRUB homebrew would be the way to go, opposed to enable a menu choice... that way it could be run more or less as a virtual machine opposed to in a different "pocket," that way it would also be more available.

    50. darkpower_4
      09-21-2010
      01:14 AM
      50

      It was possible to do 3D with RSX thanks to a HUGE security hole in fw 1.93's otherOS.

      Also on a side note we can now make a custom firmware because fw 3.50 was just released like 2 hours ago.

      So lets make the perfect CFW! we'll add otherOS w/RSX support make some drivers for it, i think it belongs to the NV40 family and BOOM everything we could ever want.

    51. SuperDre
      09-21-2010
      02:28 AM
      51

      Originally Posted by darkpower_4 View Post
      It was possible to do 3D with RSX thanks to a HUGE security hole in fw 1.93's otherOS.

      Also on a side note we can now make a custom firmware because fw 3.50 was just released like 2 hours ago.

      So lets make the perfect CFW! we'll add otherOS w/RSX support make some drivers for it, i think it belongs to the NV40 family and BOOM everything we could ever want.
      It was already possible to create a custom firmware when fw 3.42 was out, it's not like Sony won't release another update immediatly when they have a fix for stopping a custom firmware and block any PS3 running it.. Also you are really naive if you really thought Sony could fix it in such a small amount of time, they had a releasedate for 3.5 already so adding any major security fix wouldn't have made it into it anyways.. that'll be for 3.51.. Also I don't know why you are so hard on 3.5 for CFW, some people really believe that's the FW which will allow them to run GT5 (which IMHO will be one big dissapointment, well at least the GT5 academy was for me), as GT5 still isn't RTM.

      And yes the RSX (graphix part) belongs to the NV40 so it should be possible to use the opensource nvidia driver as a base, and if I'm not mistaken people were already looking at that when OtherOS was still available..

    52. KrisAbsinthe
      09-21-2010
      12:53 PM
      52

      Me and C4PT have been talking and researching OtherOS re-institution in FW 3.41 for a few days now. We have two major ways of bringing back OtherOS / Linux for the PS3:

      1)Obtain /dev_flash from OOS enabled FW (Xorhack or learn how to unpack the dev_flash.tar.aaa files from updates)

      2)build a loader for linux which will slow down the whole system

      So really the question is does someone with the XorHack have the contents of /dev_flash from a OOS enabled FW they will hook me up with. I could use the contents as a template for getting OOS ported to newer FW images. I really dont want to make a user space application for loading linux, it would really slow everything down and just be a better idea to bring back OOS.

    53. advocatusdiaboli
      09-21-2010
      02:03 PM
      53

      Originally Posted by KrisAbsinthe View Post
      2)build a loader for linux which will slow down the whole system
      I can see this approach to be good in several ways, and why should it slow down the system? Most importantly making PS3GRUB would give a virtual machine approach to running Linux, and probably it would be possible to make it quit in the same way like a commercial game.

    54. Pockets69
      09-21-2010
      03:29 PM
      54

      Originally Posted by advocatusdiaboli View Post
      I can see this approach to be good in several ways, and why should it slow down the system? Most importantly making PS3GRUB would give a virtual machine approach to running Linux, and probably it would be possible to make it quit in the same way like a commercial game.
      You are probably right, and the second one is probably the best approach at least for now... it would be cool, if they release a ps3grub loader, temporarily it would be our linux access, and later we would go for the integration in the xmb for (like when we had the access to run it by selecting in the xmb). but the speed issue is probable, we have a whole game OS running, and we will run Linux on top of it, it will be slow.

    55. advocatusdiaboli
      09-21-2010
      03:40 PM
      55

      Originally Posted by Pockets69 View Post
      but the speed issue is probable, we have a whole game OS running, and we will run Linux on top of it, it will be slow.
      It should not be slow. Are any of the games slow for you?

    56. Pockets69
      09-21-2010
      04:11 PM
      56

      no because you are not emulating anything you are playing a game where you are suposed to, in the gameOS.
      with linux you would be running a whole operating system on top of another demanding a lot of ram from the machine.

    57. Gorgatron
      09-21-2010
      07:47 PM
      57

      I find it hard to believe that the Game OS overhead would outweigh the benefit of more hardware access, but I'm no expert on these things. Ideally we'd have native Linux, but any progress is a step in the right direction.

    58. darkpower_4
      09-21-2010
      08:49 PM
      58

      @superdre.
      The only reason we waited for cfw to 3.50 so it would have 3d support. and the otheros im pretty sure is a vitual machine. but the otheros in fw1.92 had a flaw were the hyperviser didnt stop rsx access but they fixed the hole in it before they could make a driver. thats why i said they should use ps3 fw 1.92 and use its otheros file to do the reverse engineering. because that is the easiest way to make the driver.

    59. mightykhan
      09-25-2010
      01:03 AM
      59

      Originally Posted by KrisAbsinthe View Post
      Me and C4PT have been talking and researching OtherOS re-institution in FW 3.41 for a few days now. We have two major ways of bringing back OtherOS / Linux for the PS3:

      1)Obtain /dev_flash from OOS enabled FW (Xorhack or learn how to unpack the dev_flash.tar.aaa files from updates)

      2)build a loader for linux which will slow down the whole system

      So really the question is does someone with the XorHack have the contents of /dev_flash from a OOS enabled FW they will hook me up with. I could use the contents as a template for getting OOS ported to newer FW images. I really dont want to make a user space application for loading linux, it would really slow everything down and just be a better idea to bring back OOS.
      If it turns out the otheros partition is still there, and the bootloader is still in the flash memory, you could maybe just change the boot flag. The calls and address are in the kboot source code, (for "boot-game-os"), you could write some code using the same thing and switch the bit.

      of course that would only work if the updates left the bootloader intact in the flash. I'm hoping they did so I can finally update beyond 3.15.

    60. calnorak
      09-25-2010
      02:06 AM
      60

      Originally Posted by Pockets69 View Post
      no because you are not emulating anything you are playing a game where you are suposed to, in the gameOS.
      with linux you would be running a whole operating system on top of another demanding a lot of ram from the machine.
      I guess we will need a swap partition then , with my 500gb hd, id be willing to split it in half and then have a large swap out of the 250 for os