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toh:mikrotik:rb760igs [2023/10/24 09:20] – mention that 23.05.0-rc3 is the only 23.05.0 that can be netbooted muxatortoh:mikrotik:rb760igs [2023/11/16 22:47] – [Installation] Explain why 23.05 except RC3 isn't netbootable rom4nik
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 Follow [[toh:mikrotik:common|MikroTik Common Procedures]] to install the OpenWrt firmware. Follow [[toh:mikrotik:common|MikroTik Common Procedures]] to install the OpenWrt firmware.
  
 +**Warning**: use **[[https://downloads.openwrt.org/releases/23.05.0-rc3/targets/ramips/mt7621/openwrt-23.05.0-rc3-ramips-mt7621-mikrotik_routerboard-760igs-initramfs-kernel.bin|openwrt-23.05.0-rc3]]** for the first step of the TFTP installation, as **the other RCs and the final 23.05.0 version cannot be netbooted** due to too high entry point addresses:
  
-**Warning**: use **[[https://downloads.openwrt.org/releases/23.05.0-rc3/targets/ramips/mt7621/openwrt-23.05.0-rc3-ramips-mt7621-mikrotik_routerboard-760igs-initramfs-kernel.bin|openwrt-23.05.0-rc3]]** for the first step of the TFTP installation, as **the other RCs and the final 23.05.0 version cannot be netbooted** (source[[https://github.com/openwrt/openwrt/issues/13255#issuecomment-1772098866]]).+<code> 
 +$ for file in *760igs*; do echo $file; readelf -h $file | grep Entry; done 
 +openwrt-22.03.5-ramips-mt7621-mikrotik_routerboard-760igs-initramfs-kernel.bin 
 +  Entry point address:               0x80b71000 <-- netbootable 
 +openwrt-23.05.0-rc1-ramips-mt7621-mikrotik_routerboard-760igs-initramfs-kernel.bin 
 +  Entry point address:               0x80b91000 
 +openwrt-23.05.0-rc2-ramips-mt7621-mikrotik_routerboard-760igs-initramfs-kernel.bin 
 +  Entry point address:               0x80b91000 
 +openwrt-23.05.0-rc3-ramips-mt7621-mikrotik_routerboard-760igs-initramfs-kernel.bin 
 +  Entry point address:               0x80b81000 <-- netbootable 
 +openwrt-23.05.0-rc4-ramips-mt7621-mikrotik_routerboard-760igs-initramfs-kernel.bin 
 +  Entry point address:               0x80b91000 
 +openwrt-23.05.0-ramips-mt7621-mikrotik_routerboard-760igs-initramfs-kernel.bin 
 +  Entry point address              0x80b91000 
 +openwrt-23.05.1-ramips-mt7621-mikrotik_routerboard-760igs-initramfs-kernel.bin 
 +  Entry point address:               0x80b91000 
 +openwrt-23.05.2-ramips-mt7621-mikrotik_routerboard-760igs-initramfs-kernel.bin 
 +  Entry point address:               0x80b91000
  
 +</code>
 +
 +Discussion: https://github.com/openwrt/openwrt/issues/13255#issuecomment-1772098866, https://forum.openwrt.org/t/mikrotik-hex-s-rb760igs-cant-boot-via-tftp/175012.
 +
 +----
  
 **Warning: Don't upgrade RouterOS packages & bootloader to 7.2.1 otherwise 'sysupgrade image' install will fail!** **Warning: Don't upgrade RouterOS packages & bootloader to 7.2.1 otherwise 'sysupgrade image' install will fail!**
  • Last modified: 2024/02/12 08:58
  • by 127.0.0.1