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toh:netgear:gs308t_1 [2023/09/21 20:14] – fix german-style capitalization mazdermindtoh:netgear:gs308t_1 [2023/09/21 20:19] – fix ambiguity in serial pinout mazdermind
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 Update the switch to the latest [[https://www.netgear.com/support/product/gs308t#download|OEM firmware]]) first, before trying to flash OpenWrt. Unzip the downloaded file and upload the ''.bix''-File as firmware to the ''image1''-partition. Then reboot the switch. After the update is complete, copy the new ''image1'' firmware also to the ''image2'' slot in case you need to recover to OEM firmware later on. Update the switch to the latest [[https://www.netgear.com/support/product/gs308t#download|OEM firmware]]) first, before trying to flash OpenWrt. Unzip the downloaded file and upload the ''.bix''-File as firmware to the ''image1''-partition. Then reboot the switch. After the update is complete, copy the new ''image1'' firmware also to the ''image2'' slot in case you need to recover to OEM firmware later on.
  
-Download [[https://downloads.openwrt.org/releases/22.03.5/targets/realtek/rtl838x/openwrt-22.03.5-realtek-rtl838x-netgear_gs308t-v1-initramfs-kernel.bin|the initramfs image]] for the *GS308T v1* switch (Update link to latest release!) and check the sha256sum.+Download the ''initramfs'' image for the //GS308T// switch and check the sha256sum.
  
 Select the image as file for firmware-update in the OEM GUI. Always flash ''image1'' with OpenWrt and leave ''image2'' as OEM firmware, because the OpenWrt ''sysupgrade''-tool will only ever write to ''image1'' partition. Select the image as file for firmware-update in the OEM GUI. Always flash ''image1'' with OpenWrt and leave ''image2'' as OEM firmware, because the OpenWrt ''sysupgrade''-tool will only ever write to ''image1'' partition.
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 The freshly flashed switch will not do any DHCP and you need to configure yourself an IP out of the aforementioned net, before you can visit http://192.168.1.1/ and login with an empty password. The freshly flashed switch will not do any DHCP and you need to configure yourself an IP out of the aforementioned net, before you can visit http://192.168.1.1/ and login with an empty password.
  
-Now sownload [[https://downloads.openwrt.org/releases/22.03.5/targets/realtek/rtl838x/openwrt-22.03.5-realtek-rtl838x-netgear_gs308t-v1-squashfs-sysupgrade.bin|the sysupgrade image]] for the *GS308T v1* and once again check the sha265sum.+Now download the ''sysupgrade'' image for the //GS308T// and once again check the sha265sum.
  
 Flash this image from within the OpenWrt Web-GUI. During the flashing the Power-LED will blink orange before changing to solid orange on success, then going off for a couple of seconds and continuing with the usual green blink, then solid green cycle, at which point the switch has been completely flashed with OpenWrt. The Port-LEDs will stay dark, even if there is a link up. Flash this image from within the OpenWrt Web-GUI. During the flashing the Power-LED will blink orange before changing to solid orange on success, then going off for a couple of seconds and continuing with the usual green blink, then solid green cycle, at which point the switch has been completely flashed with OpenWrt. The Port-LEDs will stay dark, even if there is a link up.
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 The device will now boot the OEM Firmware from ''image2'' and continue to do so unless you change the boot-image back to ''image1'' (//Maintainace -> File Management -> Dual Image Configuration -> Active Image -> Apply// in the OEM Firmware). If you want you can copy the OEM Firmware from ''image2'' back to ''image1'' to completely erase OpenWrt from the device (//Maintainance -> File Management -> Copy// in the OEM Firmware). The device will now boot the OEM Firmware from ''image2'' and continue to do so unless you change the boot-image back to ''image1'' (//Maintainace -> File Management -> Dual Image Configuration -> Active Image -> Apply// in the OEM Firmware). If you want you can copy the OEM Firmware from ''image2'' back to ''image1'' to completely erase OpenWrt from the device (//Maintainance -> File Management -> Copy// in the OEM Firmware).
  
-To directly and permanently flash the OEM firmware back to ''image1'', download the latest [[https://www.netgear.com/support/product/gs308t#download|OEM Firmware]] and copy the ''.bix'' file from the Zip-Archive to ''/tmp/'' on the OpenWrt installation. Then run this command:+To directly and permanently flash the OEM firmware back to ''image1'', download the latest OEM Firmware and copy the ''.bix'' file from the Zip-Archive to ''/tmp/'' on the OpenWrt installation. Then run this command:
  
   sysupgrade -n -F /tmp/GS308T_*.bix   sysupgrade -n -F /tmp/GS308T_*.bix
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   J1 |  1 234   J1 |  1 234
        [o]ooo        [o]ooo
-        ^ ||`------ To GND (3.3 V)  +        ^ ||`------ GND 
-        | |`------- To RXD +        | |`------- TXD 
-        | `-------- To TXD+        | `-------- RXD
         `---------- Do not connect         `---------- Do not connect
  
  • Last modified: 2024/05/08 21:50
  • by andyboeh