You are here: OpenWrt Wiki » Table of Hardware » Mikrotik » Mikrotik Routerboard RB493G

Differences

This shows you the differences between two versions of the page.

--- toh:mikrotik:rb493g [2013/01/09 11:26]
del
+++ toh:mikrotik:rb493g [2013/05/06 16:38] (current)
renne Download URL updated to openwrt version 12.09
@@ Line 30: / Line 30: @@
 The bootloader is able to load an image in ELF-format via BOOTP/DHCP and TFTP into RAM and execute it.
-=== Setup another OpenWrt router as host ===
+=== Use another OpenWrt router as netboot server ===
 This is the easiest way to achieve a live boot of your RB493G, but it requires that you already have an OpenWrt router with net-access available. You will need to obtain an elf-image for the RB493G, and make it available to the other router. If you have enough memory available on the other router, you can put the image on the /tmp folder there, e.g., like this:
 <code>ssh root@192.168.1.1
-wget --directory-prefix=/tmp http://downloads.openwrt.org/attitude_adjustment/12.09-rc1/ar71xx/nand/openwrt-ar71xx-nand-vmlinux-initramfs.elf</code>
+wget --directory-prefix=/tmp http://downloads.openwrt.org/attitude_adjustment/12.09-beta2/ar71xx/nand/openwrt-ar71xx-nand-vmlinux-initramfs.elf</code>
 Now enable dnsmasq's built in tftp server, and point it to the correct locations, e.g., like this:
 {{ :toh:mikrotik:tftpnetbootconfig.png?630 |Setting up netboot in Luci, note the full path for the filename. }}
 That's it, Save and apply, connect the Eth1/WAN port of RB493G to one of the other routers LAN ports, and continue to [[toh:mikrotik:rb493g#setup.the.routerboard|Setup the Routerboard]].
-=== Setup a Debian based host ===
+=== Use a Debian based server for netboot ===
 You need a BOOTP- and a TFTP-server on your host-machine, we use ''dnsmasq'' here, since it can provide both services. Install dnsmasq with:
@@ Line 58: / Line 58: @@
   - enable dnsmasq's built-in TFTP-server <code>enable-tftp</code>
   - set the root directory-for files available via TFTP. <code>tftp-root=/srv/tftp</code>
-  - download initramfs-kernel-image into root-directory of the TFTP-server: <code>wget --directory-prefix=/srv/tftp http://www.ozo.com/airo/openwrt/firmware/latest/2.6/ar71xx/26878/openwrt-ar71xx-nand-vmlinux-initramfs.elf</code>
+  - download initramfs-kernel-image into root-directory of the TFTP-server: <code>wget --directory-prefix=/srv/tftp http://downloads.openwrt.org/attitude_adjustment/12.09-beta2/ar71xx/nand/openwrt-ar71xx-nand-vmlinux-initramfs.elf</code>
   - set filename of kernel image for tftp-server/BOOTP:<code>dhcp-boot=/srv/tftp/openwrt-ar71xx-nand-vmlinux-initramfs.elf</code>
@@ Line 126: / Line 126: @@
 Press **Enter** and you are in the console of OpenWRT running from RAM and booted via BOOTP/TFTP.
-Note that you may need to set dns servers to get net-access. Enter a working dns for you in
+Note that you may need to set dns servers to get net-access while running the netbooted image. Enter a working dns for you in
 <code>vi /tmp/resolv.conf.auto</code>
 then restart dnsmasq to make the change effective (cross-check that you indeed have net-access afterwords):
@@ Line 150: / Line 150: @@
   - Execute:
 <code>
-wget2nand http://downloads.openwrt.org/attitude_adjustment/12.09-beta/ar71xx/nand/
+wget2nand http://downloads.openwrt.org/attitude_adjustment/12.09/ar71xx/nand/
 </code>
-You can adjust the path-part dependend on the OpenWRT-version ('attitude_adjustment/12.09-beta'), but make sure you use the 'ar71xx/nand/'-branch and at least version '12.09-beta'.
+You can adjust the path-part dependend on the OpenWRT-version ('attitude_adjustment/12.09'), but make sure you use the 'ar71xx/nand/'-branch and at least version '12.09-rc2'.
 ==== Upgrading OpenWrt ====
@@ Line 203: / Line 203: @@
 ==== Micro-SD-Card-Reader ====
-Does it work for anyone?
+The SD-card reader is now supposed to work, but the needed patch is currently not in trunk. You will find the ticket with history here: https://dev.openwrt.org/ticket/12349
+Hence precompiled images with working SD-card reader is not yet available from the OpenWrt server. Until that is resolved, you can find compiled kernel and rootfs here:
+http://ubuntuone.com/1bZTk4vlKwroZezcdeJa4l
+http://ubuntuone.com/2V1BoearwvvMOsNzUz7mcx
+Provide them on a web-server, or copy them manually over to the kernel and rootfs partitions on the nand.
 ==== USB ====
@@ Line 217: / Line 222: @@
 See [[doc:howto:usb.essentials]] for configuration.
-=== USB-MOD ===
-Components:
-| 1x | PCB |
-| 1x | USB-2.0-dual-A-socket |
-| 1x | USB-2.0- A-plug |
-| 1x | Traco TSR 1-2450 step-down-converter 5VDC/1A (doesn't need any other components like capacitors or heatsink) |
-| 1x | Multifuse 60VDC/0,5A I<sub>hold</sub>/1A I<sub>trip</sub> |
-Proto-type and diagrams/layouts aren't beauties, but maybe someone with more Cadsoft-Eagle-experience can make a nice circuit-diagram and a real PCB-layout. {{:toh:mikrotik:rb493g-usb-mod.zip|Eagle files and datasheets}} ;-)
-Rudimentary circuit-diagram with USB-2.0 data-port (1) and generic USB-2.0 charger port (2), both supplied by a step-down-converter via the fan-connector of the RB493G:
-{{:toh:mikrotik:rb493g_usb-mod_circuit-diagram.png|}}
-Rudimentary PCB-layout, not applicable:\\
-{{:toh:mikrotik:rb493g-usb-mod_pcb.png|}}
-USB-mod prototype top-view:\\
-{{:toh:mikrotik:usb-mod-top.jpg|}}
-USB-mod prototype bottom-view:\\
-{{:toh:mikrotik:usb-mod-bottom.jpg|}}
-USB-mod prototype attached:\\
-{{:toh:mikrotik:usb-mod-attached.jpg|}}
 ===== Hardware =====
@@ Line 375: / Line 353: @@
 {{tag>GigabitEthernet FastEthernet 9Port 2PHY USB DetachableAntenna 256RAM 128Flash MIPS MIPS32 24Kc}}
+===== Hardware Mods =====
+  - as a beginner, you really should inform yourself about [[doc:hardware:soldering]] in general and then even obtain some experience!
+==== USB-MOD ====
+Components:
+| 1x | PCB |
+| 1x | USB-2.0-dual-A-socket, e.g., [[http://dx.com/p/diy-dual-usb-female-type-a-180-degree-dip-socket-connector-silver-10-piece-pack-127653 | |these]]. |
+| 1x | USB-2.0- A-plug, e.g., [[http://dx.com/p/diy-usb-4-pin-female-type-a-smt-socket-connector-silver-10-piece-pack-127642 | these]]. |
+| 1x | Traco TSR 1-2450 step-down-converter 5VDC/1A (doesn't need any other components like capacitors or heatsink). As of this writing you will find the LM7805V voltage regulator at [[http://dx.com/p/lm7805l-5v-voltage-regulator-ics-10-pcs-157382 | DealExtreme]] |
+| 1x | Multifuse 60VDC/0,5A I<sub>hold</sub>/1A I<sub>trip</sub> |
+Proto-type and diagrams/layouts aren't beauties, but maybe someone with more Cadsoft-Eagle-experience can make a nice circuit-diagram and a real PCB-layout. {{:toh:mikrotik:rb493g-usb-mod.zip|Eagle files and datasheets}} ;-)
+Rudimentary circuit-diagram with USB-2.0 data-port (1) and generic USB-2.0 charger port (2), both supplied by a step-down-converter via the fan-connector of the RB493G:
+{{:toh:mikrotik:rb493g_usb-mod_circuit-diagram.png|}}
+Rudimentary PCB-layout, not applicable:\\
+{{:toh:mikrotik:rb493g-usb-mod_pcb.png|}}
+USB-mod prototype top-view:\\
+{{:toh:mikrotik:usb-mod-top.jpg|}}
+USB-mod prototype bottom-view:\\
+{{:toh:mikrotik:usb-mod-bottom.jpg|}}
+USB-mod prototype attached:\\
+{{:toh:mikrotik:usb-mod-attached.jpg|}}

toh/mikrotik/rb493g.1357727197.txt.bz2 · Last modified: 2013/01/09 11:26 by del

OpenWrt

Wiki Search

Actions

Donate

Translations

Differences