I have the serial connection installed.
I powered on the router and received the following boot log.
Uncompressing Kernel Image ... OK
Starting kernel ...
[ 0.000000] Linux version 3.18.11 (openwrt@gb-11) (gcc version 4.8.3 (OpenWrt/Linaro GCC 4.8-2014.04 r45695) ) #1 Tue May 19 08:20:07 UTC 2015
[ 0.000000] bootconsole [early0] enabled
[ 0.000000] CPU0 revision is: 00019374 (MIPS 24Kc)
[ 0.000000] SoC: Atheros AR9330 rev 1
[ 0.000000] Determined physical RAM map:
[ 0.000000] memory: 02000000 @ 00000000 (usable)
[ 0.000000] Initrd not found or empty - disabling initrd
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x00000000-0x01ffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00000000-0x01ffffff]
[ 0.000000] Initmem setup node 0 [mem 0x00000000-0x01ffffff]
[ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[ 0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128
[ 0.000000] Kernel command line: board=TL-WR710NV2 console=ttyATH0,115200 rootfstype=squashfs,jffs2 noinitrd
[ 0.000000] MIPS: no machine found for id 'TL-WR710NV2', supported machines:
[ 0.000000] id name
[ 0.000000] Generic Generic AR71XX/AR724X/AR913X based board
[ 0.000000] ALFA-AP96 ALFA Network AP96
[ 0.000000] ALFA-NX ALFA Network N2/N5
[ 0.000000] ALL0258N Allnet ALL0258N
[ 0.000000] ALL0315N Allnet ALL0315N
[ 0.000000] AP113 Atheros AP113
[ 0.000000] AP121-MINI Atheros AP121-MINI
[ 0.000000] AP121 Atheros AP121 reference board
[ 0.000000] AP132 Atheros AP132 reference board
[ 0.000000] AP135-020 Atheros AP135-020 reference board
[ 0.000000] AP136-020 Atheros AP136-020 reference board
[ 0.000000] AP136-010 Atheros AP136-010 reference board
[ 0.000000] AP81 Atheros AP81 reference board
[ 0.000000] AP83 Atheros AP83
[ 0.000000] AP96 Atheros AP96
[ 0.000000] TL-WDR4900-v2 TP-LINK TL-WDR4900 v2
[ 0.000000] ARCHER-C7 TP-LINK Archer C7
[ 0.000000] ARCHER-C5 TP-LINK Archer C5
[ 0.000000] AW-NR580 AzureWave AW-NR580
[ 0.000000] BXU2000n-2-A1 BHU BXU2000n-2 rev. A1
[ 0.000000] CAP4200AG Senao CAP4200AG
[ 0.000000] CPE510 TP-LINK CPE210/220/510/520
[ 0.000000] DB120 Atheros DB120 reference board
[ 0.000000] DGL-5500-A1 D-Link DGL-5500 rev. A1
[ 0.000000] DHP-1565-A1 D-Link DHP-1565 rev. A1
[ 0.000000] DIR-505-A1 D-Link DIR-505 rev. A1
[ 0.000000] DIR-615-E4 D-Link DIR-615 rev. E4
[ 0.000000] DIR-615-E1 D-Link DIR-615 rev. E1
[ 0.000000] DIR-600-A1 D-Link DIR-600 rev. A1
[ 0.000000] DIR-615-C1 D-Link DIR-615 rev. C1
[ 0.000000] DIR-825-B1 D-Link DIR-825 rev. B1
[ 0.000000] DIR-835-A1 D-Link DIR-835 rev. A1
[ 0.000000] DIR-825-C1 D-Link DIR-825 rev. C1
[ 0.000000] DRAGINO2 Dragino Dragino v2
[ 0.000000] ESR900 EnGenius ESR900
[ 0.000000] EW-DORIN-ROUTER EmbWir-Dorin-Router
[ 0.000000] EW-DORIN EmbWir-Dorin
[ 0.000000] EAP300V2 EnGenius EAP300 v2
[ 0.000000] ALL0305 Allnet ALL0305
[ 0.000000] EAP7660D Senao EAP7660D
[ 0.000000] EL-M150 EasyLink EL-M150
[ 0.000000] EL-MINI EasyLink EL-MINI
[ 0.000000] ESR1750 EnGenius ESR1750
[ 0.000000] F9K1115V2 Belkin AC1750DB
[ 0.000000] GL-INET GL-CONNECT INET v1
[ 0.000000] GS-OOLITE Oolite V1.0
[ 0.000000] HiWiFi-HC6361 HiWiFi HC6361
[ 0.000000] JA76PF2 jjPlus JA76PF2
[ 0.000000] JA76PF jjPlus JA76PF
[ 0.000000] JWAP003 jjPlus JWAP003
[ 0.000000] HORNET-UB ALFA NETWORK Hornet-UB
[ 0.000000] MC-MAC1200R MERCURY MAC1200R
[ 0.000000] MR600v2 OpenMesh MR600v2
[ 0.000000] MR600 OpenMesh MR600
[ 0.000000] MR900v2 OpenMesh MR900v2
[ 0.000000] MR900 OpenMesh MR900
[ 0.000000] MYNET-N600 WD My Net N600
[ 0.000000] MYNET-N750 WD My Net N750
[ 0.000000] MYNET-REXT WD My Net Wi-Fi Range Extender
[ 0.000000] MZK-W04NU Planex MZK-W04NU
[ 0.000000] MZK-W300NH Planex MZK-W300NH
[ 0.000000] NBG460N Zyxel NBG460N/550N/550NH
[ 0.000000] OM2P-HSv2 OpenMesh OM2P HSv2
[ 0.000000] OM2P-HS OpenMesh OM2P HS
[ 0.000000] OM2Pv2 OpenMesh OM2Pv2
[ 0.000000] OM2P-LC OpenMesh OM2P LC
[ 0.000000] OM2P OpenMesh OM2P
[ 0.000000] OM5P-AN OpenMesh OM5P AN
[ 0.000000] OM5P OpenMesh OM5P
[ 0.000000] PB42 Atheros PB42
[ 0.000000] PB44 Atheros PB44 reference board
[ 0.000000] PB92 Atheros PB92
[ 0.000000] QIHOO-C301 Qihoo 360 C301
[ 0.000000] R6100 NETGEAR R6100
[ 0.000000] RW2458N Redwave RW2458N
[ 0.000000] SMART-300 NC-LINK SMART-300
[ 0.000000] TEW-632BRP TRENDnet TEW-632BRP
[ 0.000000] TEW-673GRU TRENDnet TEW-673GRU
[ 0.000000] TEW-712BR TRENDnet TEW-712BR
[ 0.000000] TEW-732BR TRENDnet TEW-732BR
[ 0.000000] TL-MR3040-v2 TP-LINK TL-MR3040 v2
[ 0.000000] TL-MR3040 TP-LINK TL-MR3040
[ 0.000000] TL-MR11U TP-LINK TL-MR11U
[ 0.000000] TL-MR13U TP-LINK TL-MR13U v1
[ 0.000000] TL-MR3020 TP-LINK TL-MR3020
[ 0.000000] TL-WR841N-v7 TP-LINK TL-WR841N/ND v7
[ 0.000000] TL-MR3420 TP-LINK TL-MR3420
[ 0.000000] TL-MR3220 TP-LINK TL-MR3220
[ 0.000000] TL-WA901ND-v3 TP-LINK TL-WA901ND v3
[ 0.000000] TL-WA860RE TP-LINK TL-WA860RE
[ 0.000000] TL-WA850RE TP-LINK TL-WA850RE
[ 0.000000] TL-WA801ND-v2 TP-LINK TL-WA801ND v2
[ 0.000000] TL-WA750RE TP-LINK TL-WA750RE
[ 0.000000] TL-WA701ND-v2 TP-LINK TL-WA701ND v2
[ 0.000000] TL-WA7210N-v2 TP-LINK TL-WA7210N v2
[ 0.000000] TL-WA830RE-v2 TP-LINK TL-WA830RE v2
[ 0.000000] TL-WA7510N TP-LINK TL-WA7510N v1
[ 0.000000] TL-WA901ND TP-LINK TL-WA901ND
[ 0.000000] TL-WA901ND-v2 TP-LINK TL-WA901ND v2
[ 0.000000] TL-WDR3500 TP-LINK TL-WDR3500
[ 0.000000] TL-WDR4300 TP-LINK TL-WDR3600/4300/4310
[ 0.000000] TL-WR741ND TP-LINK TL-WR741ND
[ 0.000000] TL-MR3220-v2 TP-LINK TL-MR3220 v2
[ 0.000000] TL-WR741ND-v4 TP-LINK TL-WR741ND v4
[ 0.000000] TL-WR841N-v1.5 TP-LINK TL-WR841N v1
[ 0.000000] TL-WR941ND-v5 TP-LINK TL-WR941N/ND v5
[ 0.000000] TL-MR3420-v2 TP-LINK TL-MR3420 v2
[ 0.000000] TL-WR842N-v2 TP-LINK TL-WR842N/ND v2
[ 0.000000] TL-WR841N-v8 TP-LINK TL-WR841N/ND v8
[ 0.000000] TL-WR841N-v9 TP-LINK TL-WR841N/ND v9
[ 0.000000] TL-WR941ND TP-LINK TL-WR941ND
[ 0.000000] TL-WR1041N-v2 TP-LINK TL-WR1041N v2
[ 0.000000] TL-WR1043ND TP-LINK TL-WR1043ND
[ 0.000000] TL-WR1043ND-v2 TP-LINK TL-WR1043ND v2
[ 0.000000] TL-WR2543N TP-LINK TL-WR2543N/ND
[ 0.000000] TL-WR710N TP-LINK TL-WR710N v1
[ 0.000000] TL-WR703N TP-LINK TL-WR703N v1
[ 0.000000] TL-MR10U TP-LINK TL-MR10U
[ 0.000000] TL-WR720N-v3 TP-LINK TL-WR720N v3
[ 0.000000] TUBE2H ALFA NETWORK Tube2H
[ 0.000000] UBNT-LS-SR71 Ubiquiti LS-SR71
[ 0.000000] UBNT-LSX Ubiquiti LSX
[ 0.000000] UBNT-RSPRO Ubiquiti RouterStation Pro
[ 0.000000] UBNT-RS Ubiquiti RouterStation
[ 0.000000] UBNT-AGW Ubiquiti AirGateway
[ 0.000000] UBNT-RM-XW Ubiquiti Rocket M XW
[ 0.000000] UBNT-LOCO-XW Ubiquiti Loco M XW
[ 0.000000] UBNT-NM-XW Ubiquiti Nanostation M XW
[ 0.000000] UAP-PRO Ubiquiti UniFi AP Pro
[ 0.000000] UBNT-UOP Ubiquiti UniFiAP Outdoor+
[ 0.000000] UBNT-U20 Ubiquiti UniFiAP Outdoor
[ 0.000000] UBNT-UF Ubiquiti UniFi
[ 0.000000] UBNT-AR Ubiquiti AirRouter
[ 0.000000] UBNT-NM Ubiquiti Nanostation M
[ 0.000000] UBNT-RM Ubiquiti Rocket M
[ 0.000000] UBNT-BM Ubiquiti Bullet M
[ 0.000000] UBNT-XM Ubiquiti Networks XM (rev 1.0) board
[ 0.000000] WHR-HP-GN Buffalo WHR-HP-GN
[ 0.000000] WHR-G301N Buffalo WHR-G301N
[ 0.000000] WHR-HP-G300N Buffalo WHR-HP-G300N
[ 0.000000] WLAE-AG300N Buffalo WLAE-AG300N
[ 0.000000] WLR8100 Sitecom WLR-8100
[ 0.000000] WNDAP360 Netgear WNDAP360
[ 0.000000] WNDR3700 NETGEAR WNDR3700/WNDR3800/WNDRMAC
[ 0.000000] WNDR4300 NETGEAR WNDR4300
[ 0.000000] WNDR3700_V4 NETGEAR WNDR3700v4
[ 0.000000] WNR2000 NETGEAR WNR2000
[ 0.000000] WNR1000V2 NETGEAR WNR1000 V2
[ 0.000000] WNR612V2 NETGEAR WNR612 V2
[ 0.000000] WNR2000V3 NETGEAR WNR2000 V3
[ 0.000000] WNR2000V4 NETGEAR WNR2000 V4
[ 0.000000] WNR2200 NETGEAR WNR2200
[ 0.000000] WP543 Compex WP543
[ 0.000000] WPE72 Compex WPE72
[ 0.000000] WPJ344 Compex WPJ344
[ 0.000000] WPJ558 Compex WPJ558
[ 0.000000] WRT160NL Linksys WRT160NL
[ 0.000000] WRT400N Linksys WRT400N
[ 0.000000] WZR-HP-G300NH Buffalo WZR-HP-G300NH
[ 0.000000] WZR-HP-G300NH2 Buffalo WZR-HP-G300NH2
[ 0.000000] WZR-HP-AG300H Buffalo WZR-HP-AG300H/WZR-600DHP
[ 0.000000] WZR-HP-G450H Buffalo WZR-HP-G450H
[ 0.000000] WZR-450HP2 Buffalo WZR-450HP2
[ 0.000000] ZCN-1523H-5 Zcomax ZCN-1523H-5
[ 0.000000] ZCN-1523H-2 Zcomax ZCN-1523H-2
[ 0.000000] CARAMBOLA2 8devices Carambola2 board
[ 0.000000] NBG6716 Zyxel NBG6716
[ 0.000000] PID hash table entries: 128 (order: -3, 512 bytes)
[ 0.000000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Writing ErrCtl register=00000000
[ 0.000000] Readback ErrCtl register=00000000
[ 0.000000] Memory: 28260K/32768K available (2634K kernel code, 128K rwdata, 548K rodata, 264K init, 194K bss, 4508K reserved)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS:51
[ 0.000000] Clocks: CPU:400.000MHz, DDR:400.000MHz, AHB:200.000MHz, Ref:25.000MHz
[ 0.000000] Calibrating delay loop... 265.42 BogoMIPS (lpj=1327104)
[ 0.080000] pid_max: default: 32768 minimum: 301
[ 0.080000] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.090000] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.100000] NET: Registered protocol family 16
[ 0.100000] MIPS: machine is Generic AR71XX/AR724X/AR913X based board
[ 0.110000] Switched to clocksource MIPS
[ 0.120000] NET: Registered protocol family 2
[ 0.120000] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.120000] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.120000] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.130000] TCP: reno registered
[ 0.130000] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.140000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.150000] NET: Registered protocol family 1
[ 0.150000] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.180000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.180000] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[ 0.190000] msgmni has been set to 55
[ 0.200000] io scheduler noop registered
[ 0.200000] io scheduler deadline registered (default)
[ 0.200000] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[ 0.210000] ar933x-uart: ttyATH0 at MMIO 0x18020000 (irq = 11, base_baud = 1562500) is a AR933X UART
[ 0.220000] console [ttyATH0] enabled
[ 0.220000] console [ttyATH0] enabled
[ 0.230000] bootconsole [early0] disabled
[ 0.230000] bootconsole [early0] disabled
[ 0.240000] TCP: cubic registered
[ 0.240000] NET: Registered protocol family 17
[ 0.250000] bridge: automatic filtering via arp/ip/ip6tables has been deprecated. Update your scripts to load br_netfilter if you need this.
[ 0.260000] Bridge firewalling registered
[ 0.260000] 8021q: 802.1Q VLAN Support v1.8
[ 0.290000] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6
[ 0.300000] Please append a correct "root=" boot option; here are the available partitions:
[ 0.310000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[ 0.310000] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[ 82.560000] random: nonblocking pool is initialized
I attempted to reflash with tftp from the serial link but this just results in the same boot message.
I even tried flashing the 4mb image but this also does not work.
Anyone have any ideas?