Linksys MR8300

OpenWRT

1. Log in to the Linksys UI at 192.168.1.1. Reset the password if you need to using the pin printed on the underside of the device. 2. Click on 'Connectivity' and then the 'CA' link at the bottom of the page. 3. Download the OpenWRT 22.03 factory.bin file (https://downloads.openwrt.org/releases/22.03.5/targets/ipq40xx/generic/openwrt-22.03.5-ipq40xx-generic-linksys_mr8300-squashfs-factory.bin). 4. Upload the .bin file. Acknowledge the filename warning.

After the device reboots, you should be able to login to luci at 192.168.1.1.

Sysupgrade

To upgrade to the latest version, you have to adjust the bootloader settings.

A device with the stock settings look like this:

root@OpenWrt:~# fw_printenv
altkern=5f80000
baudrate=115200
boot_ver=1.3.3
bootcmd=if test $auto_recovery = no; then bootipq; elif test $boot_part = 1; then run bootpart1; else run bootpart2; fi
bootdelay=2
bootpart1=set bootargs $partbootargs && nand read $loadaddr $prikern $kernsize && bootm $loadaddr
bootpart2=set bootargs $partbootargs2 && nand read $loadaddr $altkern $kernsize && bootm $loadaddr
ethact=eth0
ethaddr=00:03:7f:xx:xx:xx
flash_type=2
flashimg=tftp $loadaddr $image && nand erase $prikern $imgsize && nand write $loadaddr $prikern $filesize
flashimg2=tftp $loadaddr $image && nand erase $altkern $imgsize && nand write $loadaddr $altkern $filesize
image=rogue.img
imgsize=5800000
ipaddr=192.168.1.1
kernsize=300000
loadaddr=84000000
machid=8010006
netmask=255.255.255.0
partbootargs=init=/sbin/init rootfstype=ubifs ubi.mtd=11,2048 root=ubi0:ubifs rootwait rw
partbootargs2=init=/sbin/init rootfstype=ubifs ubi.mtd=13,2048 root=ubi0:ubifs rootwait rw
prikern=780000
serverip=192.168.1.254
stderr=serial
stdin=serial
stdout=serial
boot_part_ready=3
boot_part=2

Adjust the kernsize:

# fw_setenv kernsize 500000

## Verify
# fw_printenv