## Latest Images
### Debian 9 - Stretch
[![Debian Stretch](/img/os/debian2.png)](https://cdn.kobol.io/files/Helios4_Debian_Stretch_4.14.12.img.xz)
*Build date : 06/01/2018
Size : 242 MB
MD5SUM : a97fef50ecb1c14a6013695f3b2a51b6*
[Download](https://cdn.kobol.io/files/Helios4_Debian_Stretch_4.14.12.img.xz)
### Debian 8 - Jessie
[![Debian Jessie](/img/os/debian2.png)](https://cdn.kobol.io/files/Helios4_Debian_Jessie_4.4.110.img.xz)
*Build date : 06/01/2018
Size : 210 MB
MD5SUM : 4512a1c283fb3e075f390e8d7b6415ab*
[Download](https://cdn.kobol.io/files/Helios4_Debian_Jessie_4.4.110.img.xz)
### OpenMediaVault - OMV3
[![OMV](/img/os/omv.png)](https://cdn.kobol.io/files/Helios4_Debian_Jessie_4.4.110-OMV_3.0.96.img.xz)
*Build date : 06/01/2018
Size : 272 MB
MD5SUM : 250fa48a6fbb92eef31152d0d6783077*
[Download](https://cdn.kobol.io/files/Helios4_Debian_Jessie_4.4.110-OMV_3.0.96.img.xz)
### OpenMediaVault - OMV4
*coming soon*
### Syncloud
*coming soon*
## Know Issues
### All Kernels
- SDcard High Speed timing have compatibility issue with some brands.
**Temporary workaround :** Disable UHS option/support.
- During SATA heavy load, accessing SPI NOR Flash will generate ATA errors.
**Temporary workaround :** Disable SPI NOR flash.
### Legacy Kernel (4.4)
- PWM-FAN driver not working.
**Temporary workaround :** Use GPIO-FAN driver, only 2 speeds supported (low or full speed).
### Legacy Kernel (4.14)
- DVFS doesn't use correct CPU freq range (666 - 1332Mhz instead of 800-1600MHz).
## Image List
### Based on Debian 9 - Stretch
Filename | Download | MD5
---------|----------|----
**Helios4_Debian_Stretch_4.14.12.img.xz**
Debian 9 Stretch (Kernel 4.14.12)
Build date : 06/01/2018
Size :242 MB|[Download](https://cdn.kobol.io/files/Helios4_Debian_Stretch_4.14.12.img.xz)|a97fef50ecb1c14a6013695f3b2a51b6
### Based on Debian 8 - Jessie
Filename | Download | MD5
---------|----------|----
**Helios4_Debian_Jessie_4.4.110.img.xz**
Debian 8 Jessie (Kernel 4.4.110)
Build date : 06/01/2018
Size : 210 MB|[Download](https://cdn.kobol.io/files/Helios4_Debian_Jessie_4.4.110.img.xz)|4512a1c283fb3e075f390e8d7b6415ab
**Helios4_Debian_Jessie_4.4.110-OMV_3.0.96.img.xz**
Debian 8 Jessie (Kernel 4.4.110) with OMV 3.0.96
Build date : 06/01/2018
Size : 272 MB|[Download](https://cdn.kobol.io/files/Helios4_Debian_Jessie_4.4.110-OMV_3.0.96.img.xz)|250fa48a6fbb92eef31152d0d6783077
**Helios4_Debian_Jessie_4.4.107.img.xz**
Debian 8 Jessie (Kernel 4.4.107)
Build date : 30/12/2017
Size : 210 MB|[Download](https://cdn.kobol.io/files/Helios4_Debian_Jessie_4.4.107.img.xz)|afd9606b39ae3eb149f78413db89f80b
**Helios4_Debian_Jessie_4.4.107-OMV_3.0.95.img.xz**
Debian 8 Jessie (Kernel 4.4.107) with OMV 3.0.95
Build date : 30/12/2017
Size : 272 MB|[Download](https://cdn.kobol.io/files/Helios4_Debian_Jessie_4.4.107-OMV_3.0.95.img.xz)|4d193617b2ee27aaf48f7cdfbb0d0ba7
**Helios4_Debian_Jessie_4.4.106.img.xz**
Debian 8 Jessie (Kernel 4.4.106)
Build date : 18/12/2017
Size : 184 MB|[Download](https://cdn.kobol.io/files/Helios4_Debian_Jessie_4.4.106.img.xz)|1ec6f992077b821f7078af496dae02a7
**Helios4_Debian_Jessie_4.4.106-OMV_3.0.94.img.xz**
Debian 8 Jessie (Kernel 4.4.106) with OMV 3.0.94
Build date : 18/12/2017
Size : 261 MB|[Download](https://cdn.kobol.io/files/Helios4_Debian_Jessie_4.4.106-OMV_3.0.94.img.xz)|6d2e3cea12c2e4091de6cfac24daa9fc