Dear Guru and Expert
I ‘ve succesfull installation Openwrt (BusyBox v1.16.1 (2010-04-13 10:25:42 EEST) built-in shell (ash)
KAMIKAZE (bleeding edge, r20828) on Mikrotik routerboard 750 GL using 32MB Ram in Metarouter type ( cpu 400 Mhz Ar71xx Atheros AR7242,Ram: 64 MB,and Flash 128 MB)
Using download link: http://wiki.mikrotik.com/wiki/Manual:Metarouter or http://rnd.rajven.net/openwrt/mikrotik/ ... _mikrotik/
Image file = openwrt-mr-mips-rootfs.tgz

System resource:
root@OpenWrt:~# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/root 87363 5147 82216 6% /
tmpfs 6976 36 6940 1% /tmp
tmpfs 512 0 512 0% /dev
root@OpenWrt:~# cat /proc/meminfo
MemTotal: 13952 kB
MemFree: 6988 kB
root@OpenWrt:~# top
Mem: 6996K used, 6956K free, 0K shrd, 0K buff, 2508K cached
CPU: 0% usr 0% sys 0% nic 99% idle 0% io 0% irq 0% sirq
Load average: 0.00 0.00 0.00 1/22 1576
Then I need to change to new version barrier_breaker/14.07-rc3/ar71xx/ on Mikrotik RouterBoard RB750GL.
Using download link: http://wiki.openwrt.org/toh/mikrotik/rb750gl and https://downloads.openwrt.org/barrier_b ... /mikrotik/
image file : openwrt-ar71xx-mikrotik-DefaultNoWifi-rootfs.tar.gz
ฺBut It doesn't work properly . It cannot running after import this image to the router.
Question :
1.Why is the extension name .gz instead .tgz? (compare between barrier breaker and kamikaze.
2.This link http://wiki.openwrt.org/toh/mikrotik/rb750gl refer to three files:(1). openwrt-ar71xx-mikrotik-vmlinux-initramfs.elf
(2.)openwrt-ar71xx-mikrotik-vmlinux-lzma.elf
(3.)openwrt-ar71xx-mikrotik-DefaultNoWifi-rootfs.tar.gz
Please advise how to install barrier_breaker on Mikrotik routerboard 750 GL.
Thank you
Banatus S

Then I need to change to new version barrier_breaker/14.07-rc3/ar71xx/ on Mikrotik RouterBoard RB750GL.
Using download link: http://wiki.openwrt.org/toh/mikrotik/rb750gl and https://downloads.openwrt.org/barrier_b ... /mikrotik/
image file : openwrt-ar71xx-mikrotik-DefaultNoWifi-rootfs.tar.gz
But It doesn't work properly . It cannot running after import this image to the router.

You assume that this image is intended to be used inside of MetaROUTER. But it is not. This image is for installing directly to the RouterBOARD, to replace RouterOS completely. The OpenWRT developers do not publish any official images that work within MetaROUTER. You would need to find somebody who has independently developed a Barrier Breaker build that has the MikroTik MetaROUTER guest patches integrated within it. I would check the "Metarouter images" thread in this very forum.

-- Nathan

Thank you Nathan
I found the useful link: http://openwrt.pantele.com.ua/trunk/met ... /packages/.
Already work now.
Banatus S

Thank you Nathan
I found the useful link: http://openwrt.pantele.com.ua/trunk/met ... /packages/.
Already work now.

You are aware that the package repository that you linked to contains images and packages that are also from the Kamikaze era, right? These were made over 5 years ago...definitely not new or in any way related to Barrier Breaker.

-- Nathan