Thanks for the encouraging words 
Alright so I spent some time trying to figure out Uboot and learned enough to be able to experiment and not brick my router..... yet. I am just playing with the secondary bootloaders, not the very first one.
At least the GPL sources for the A10 do get to compile all 3 uboot images as used in the stock router. The configuration files for compilation (menuconfig) allow 4 options to select what to boot next: another Uboot, Image, Kernel or All.
Selecting Image will get it back to booting the stock way, it will get to their very custom code and find and verify the jffs2 filesystem with the weird cferam.000 file as stock.
Selecting Kernel and writing the address in flash where I wrote the sysupgrade image I compiled (partition os0) as the option for the load address seems to do the trick and at least I got the kernel to start booting and then panic due to not finding the rootfs. Probably it's not even recognizing the mtd partitions but I'm slowly moving forward and trying to figure it out.
U-Boot 1.1.3 (Apr 21 2020 - 09:57:01)
Board: Ralink APSoC DRAM: 256 MB
relocate_code Pointer at: 8ff9c000
Config XHCI 40M PLL
******************************
Software System Reset Occurred
******************************
Allocate 16 byte aligned buffer: 8ffcaeb0
Enable NFI Clock
# MTK NAND # : Use HW ECC
NAND ID [REDACTED]
Device found in MTK table, ID: c8d1, EXT_ID: 809540
Support this Device in MTK table! c8d1
select_chip
[NAND]select ecc bit:4, sparesize :64 spare_per_sector=16
Signature matched and data read!
load_fact_bbt success 1023
load fact bbt success
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[mtk_nand] probe successfully!
mtd->writesize=2048 mtd->oobsize=64, mtd->erasesize=131072 devinfo.iowidth=8
partable is:
part0:0x20000@0x0
part1:0x7f60000@0x20000
*** Warning - bad CRC, using default environment
============================================
Ralink UBoot Version: 5.0.0.0
--------------------------------------------
ASIC MT7621A DualCore (MAC to MT7530 Mode)
DRAM_CONF_FROM: Auto-Detection
DRAM_TYPE: DDR3
DRAM bus: 16 bit
Xtal Mode=3 OCP Ratio=1/3
Flash component: NAND Flash
Date:Apr 21 2020 Time:09:57:01
============================================
THIS IS First Uboot: The first uboot located in NAND Flash to load next full-fea ture Uboot.
icache: sets:256, ways:4, linesz:32 ,total:32768
dcache: sets:256, ways:4, linesz:32 ,total:32768
##### The CPU freq = 880 MHZ ####
estimate memory size =256 Mbytes
this uboot is loaded from 0xbc020000
Press '1' or 't' to break the booting process 0
3: System Boot system code via Flash.
## Booting image at bc020000 ...
Image Name: NAND Flash I
Image Type: MIPS Linux Standalone Program (uncompressed)
Data Size: 142200 Bytes = 138.9 kB
Load Address: a01fb040
Entry Point: a0200000
... Verifying Checksum ... OK
data copied to 0xa01fb040
OK
jump to memory 0xa0200000
U-Boot 1.1.3 (Mar 3 2022 - 22:21:50)
Board: Ralink APSoC DRAM: 256 MB
relocate_code Pointer at: 8ff94000
Config XHCI 40M PLL
Allocate 16 byte aligned buffer: 8ffc9e70
Enable NFI Clock
# MTK NAND # : Use HW ECC
NAND ID [REDACTED]
Device found in MTK table, ID: c8d1, EXT_ID: 809540
Support this Device in MTK table! c8d1
select_chip
[NAND]select ecc bit:4, sparesize :64 spare_per_sector=16
Signature matched and data read!
load_fact_bbt success 1023
load fact bbt success
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[mtk_nand] probe successfully!
mtd->writesize=2048 mtd->oobsize=64, mtd->erasesize=131072 devinfo.iowidth=8
partable is:
uboot:0x100000@0x0
ubootenv:0x100000@0x100000
os0:0x3000000@0x200000
os1:0x3000000@0x3200000
tp_data:0x400000@0x6200000
radio:0x400000@0x6600000
data:0x1580000@0x6a00000
*** Warning - bad CRC, using default environment
============================================
Ralink UBoot Version: 5.0.0.0
--------------------------------------------
ASIC MT7621A DualCore (MAC to MT7530 Mode)
DRAM_CONF_FROM: Auto-Detection
DRAM_TYPE: DDR3
DRAM bus: 16 bit
Xtal Mode=3 OCP Ratio=1/3
Flash component: NAND Flash
Date:Mar 3 2022 Time:22:21:50
============================================
THIS IS the modified Uboot for OpenWRT.
icache: sets:256, ways:4, linesz:32 ,total:32768
dcache: sets:256, ways:4, linesz:32 ,total:32768
##### The CPU freq = 880 MHZ ####
estimate memory size =256 Mbytes
this uboot is loaded from 0xbc020000
Press '2' or 't' to break the booting process 0
3: System Boot system code via Flash.
## Booting image at bc200000 ...
Image Name: MIPS OpenWrt Linux-5.10.88
Image Type: MIPS Linux Kernel Image (lzma compressed)
Data Size: 2680346 Bytes = 2.6 MB
Load Address: 80001000
Entry Point: 80001000
......................................... Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
No initrd
## Transferring control to Linux (at address 80001000) ...
## Giving linux memsize in MB, 256
Starting kernel ...
[ 0.000000] Linux version 5.10.88 (builder@buildhost) (mipsel-openwrt-linux-m usl-gcc (OpenWrt GCC 11.2.0 r18437-92820cc5b9) 11.2.0, GNU ld (GNU Binutils) 2.3 7) #0 SMP Mon Dec 27 20:20:10 2021
[ 0.000000] SoC Type: MediaTek MT7621 ver:1 eco:3
[ 0.000000] printk: bootconsole [early0] enabled
[ 0.000000] CPU0 revision is: 0001992f (MIPS 1004Kc)
[ 0.000000] MIPS: machine is TP-Link Archer A2600 Pro v1
[ 0.000000] Initrd not found or empty - disabling initrd
[ 0.000000] VPE topology {2,2} total 4
[ 0.000000] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[ 0.000000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 byt es
[ 0.000000] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x0000000000000000-0x000000000fffffff]
[ 0.000000] HighMem empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000000000-0x000000000fffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x000000000fffffff]
[ 0.000000] percpu: Embedded 15 pages/cpu s30160 r8192 d23088 u61440
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 64960
[ 0.000000] Kernel command line: console=ttyS0,115200n8 rootfstype=squashfs,j ffs2
[ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes, l inear)
[ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes, lin ear)
[ 0.000000] Writing ErrCtl register=00008350
[ 0.000000] Readback ErrCtl register=00008350
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 249424K/262144K available (6949K kernel code, 624K rwdata , 820K rodata, 1256K init, 243K bss, 12720K reserved, 0K cma-reserved, 0K highme m)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] Tracing variant of Tasks RCU enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jif fies.
[ 0.000000] NR_IRQS: 256
[ 0.000000] random: get_random_bytes called from 0x80836a80 with crng_init=0
[ 0.000000] CPU Clock: 880MHz
[ 0.000000] clocksource: GIC: mask: 0xffffffffffffffff max_cycles: 0xcaf478ab b4, max_idle_ns: 440795247997 ns
[ 0.000012] sched_clock: 64 bits at 880MHz, resolution 1ns, wraps every 43980 46511103ns
[ 0.007940] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_i dle_ns: 4343773742 ns
[ 0.016920] Calibrating delay loop... 586.13 BogoMIPS (lpj=2930688)
[ 0.083070] pid_max: default: 32768 minimum: 301
[ 0.087830] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linea r)
[ 0.095033] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.105292] rcu: Hierarchical SRCU implementation.
[ 0.110268] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build
[ 0.118265] smp: Bringing up secondary CPUs ...
[ 0.123386] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[ 0.123397] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 byt es
[ 0.123408] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[ 0.123481] CPU1 revision is: 0001992f (MIPS 1004Kc)
[ 0.178122] Synchronize counters for CPU 1: done.
[ 0.209990] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[ 0.210000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 byt es
[ 0.210009] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[ 0.210056] CPU2 revision is: 0001992f (MIPS 1004Kc)
[ 0.269160] Synchronize counters for CPU 2: done.
[ 0.299621] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[ 0.299630] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 byt es
[ 0.299639] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[ 0.299692] CPU3 revision is: 0001992f (MIPS 1004Kc)
[ 0.354339] Synchronize counters for CPU 3: done.
[ 0.384201] smp: Brought up 1 node, 4 CPUs
[ 0.392438] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, ma x_idle_ns: 19112604462750000 ns
[ 0.402256] futex hash table entries: 1024 (order: 3, 32768 bytes, linear)
[ 0.409264] pinctrl core: initialized pinctrl subsystem
[ 0.416493] NET: Registered protocol family 16
[ 0.422159] thermal_sys: Registered thermal governor 'step_wise'
[ 0.423082] cpuidle: using governor teo
[ 0.450728] random: fast init done
[ 0.471889] clocksource: Switched to clocksource GIC
[ 0.478619] NET: Registered protocol family 2
[ 0.483325] IP idents hash table entries: 4096 (order: 3, 32768 bytes, linear )
[ 0.491628] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[ 0.500023] TCP established hash table entries: 2048 (order: 1, 8192 bytes, l inear)
[ 0.507677] TCP bind hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.514780] TCP: Hash tables configured (established 2048 bind 2048)
[ 0.521207] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.527704] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.534883] NET: Registered protocol family 1
[ 0.539175] PCI: CLS 0 bytes, default 32
[ 0.545662] workingset: timestamp_bits=14 max_order=16 bucket_order=2
[ 0.556244] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.562029] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORIT Y) (c) 2001-2006 Red Hat, Inc.
[ 0.572532] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 2 51)
[ 0.581507] mt7621_gpio 1e000600.gpio: registering 32 gpios
[ 0.587434] mt7621_gpio 1e000600.gpio: registering 32 gpios
[ 0.593296] mt7621_gpio 1e000600.gpio: registering 32 gpios
[ 0.599770] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[ 0.610154] printk: console [ttyS0] disabled
[ 0.614481] 1e000c00.uartlite: ttyS0 at MMIO 0x1e000c00 (irq = 19, base_baud = 3125000) is a 16550A
[ 0.623476] printk: console [ttyS0] enabled
[ 0.623476] printk: console [ttyS0] enabled
[ 0.631741] printk: bootconsole [early0] disabled
[ 0.631741] printk: bootconsole [early0] disabled
[ 0.644218] spi-mt7621 1e000b00.spi: sys_freq: 220000000
[ 0.651061] spi-nor spi0.0: unrecognized JEDEC id bytes: ff ff ff ff ff ff
[ 0.658036] spi-nor: probe of spi0.0 failed with error -2
[ 0.665283] libphy: Fixed MDIO Bus: probed
[ 0.703066] libphy: mdio: probed
[ 0.706998] mt7530 mdio-bus:1f: MT7530 adapts as multi-chip module
[ 0.715360] mtk_soc_eth 1e100000.ethernet: generated random MAC address e6:aa :e5:92:ac:f6
[ 0.724388] mtk_soc_eth 1e100000.ethernet eth0: mediatek frame engine at 0xbe 100000, irq 21
[ 0.735834] mt7621-pci 1e140000.pcie: host bridge /pcie@1e140000 ranges:
[ 0.742577] mt7621-pci 1e140000.pcie: No bus range found for /pcie@1e140000 , using [bus 00-ff]
[ 0.751354] mt7621-pci 1e140000.pcie: MEM 0x0060000000..0x006fffffff -> 0x0000000000
[ 0.759523] mt7621-pci 1e140000.pcie: IO 0x001e160000..0x001e16ffff -> 0x0000000000
[ 0.767789] mt7621-pci 1e140000.pcie: Parsing DT failed
[ 0.775365] NET: Registered protocol family 10
[ 0.781368] Segment Routing with IPv6
[ 0.785193] NET: Registered protocol family 17
[ 0.789708] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 0.802952] 8021q: 802.1Q VLAN Support v1.8
[ 0.810276] mt7530 mdio-bus:1f: MT7530 adapts as multi-chip module
[ 0.831268] libphy: dsa slave smi: probed
[ 0.835861] mt7530 mdio-bus:1f wan (uninitialized): PHY [dsa-0.0:00] driver [ Generic PHY] (irq=POLL)
[ 0.846636] mt7530 mdio-bus:1f lan1 (uninitialized): PHY [dsa-0.0:01] driver [Generic PHY] (irq=POLL)
[ 0.857565] mt7530 mdio-bus:1f lan2 (uninitialized): PHY [dsa-0.0:02] driver [Generic PHY] (irq=POLL)
[ 0.868446] mt7530 mdio-bus:1f lan3 (uninitialized): PHY [dsa-0.0:03] driver [Generic PHY] (irq=POLL)
[ 0.879306] mt7530 mdio-bus:1f lan4 (uninitialized): PHY [dsa-0.0:04] driver [Generic PHY] (irq=POLL)
[ 0.891077] mt7530 mdio-bus:1f: configuring for fixed/rgmii link mode
[ 0.901703] DSA: tree 0 setup
[ 0.904998] rt2880-pinmux pinctrl: pcie is already enabled
[ 0.910547] mt7621-pci 1e140000.pcie: host bridge /pcie@1e140000 ranges:
[ 0.917266] mt7621-pci 1e140000.pcie: No bus range found for /pcie@1e140000 , using [bus 00-ff]
[ 0.926087] mt7621-pci 1e140000.pcie: MEM 0x0060000000..0x006fffffff -> 0x0000000000
[ 0.934263] mt7621-pci 1e140000.pcie: IO 0x001e160000..0x001e16ffff -> 0x0000000000
[ 0.942526] mt7621-pci-phy 1e149000.pcie-phy: PHY for 0xbe149000 (dual port = 1)
[ 0.950237] mt7621-pci-phy 1e14a000.pcie-phy: PHY for 0xbe14a000 (dual port = 0)
[ 0.957866] mt7621-pci 1e140000.pcie: failed to parse bus ranges property: -2 2
[ 1.065289] mt7621-pci-phy 1e149000.pcie-phy: Xtal is 40MHz
[ 1.070855] mt7621-pci-phy 1e14a000.pcie-phy: Xtal is 40MHz
[ 1.176591] mt7621-pci 1e140000.pcie: pcie2 no card, disable it (RST & CLK)
[ 1.183545] mt7621-pci 1e140000.pcie: PCIE0 enabled
[ 1.188400] mt7621-pci 1e140000.pcie: PCIE1 enabled
[ 1.193280] mt7621-pci 1e140000.pcie: PCI coherence region base: 0x60000000, mask/settings: 0xf0000002
[ 1.202732] mt7621-pci 1e140000.pcie: PCI host bridge to bus 0000:00
[ 1.209078] pci_bus 0000:00: root bus resource [io 0x1e160000-0x1e16ffff]
[ 1.215962] pci_bus 0000:00: root bus resource [mem 0x60000000-0x6fffffff]
[ 1.222845] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 1.228312] pci_bus 0000:00: root bus resource [mem 0x60000000-0x6fffffff] (b us address [0x00000000-0x0fffffff])
[ 1.238509] pci 0000:00:00.0: [0e8d:0801] type 01 class 0x060400
[ 1.244531] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x7fffffff]
[ 1.250774] pci 0000:00:00.0: reg 0x14: [mem 0x60400000-0x6040ffff]
[ 1.257115] pci 0000:00:00.0: supports D1
[ 1.261109] pci 0000:00:00.0: PME# supported from D0 D1 D3hot
[ 1.267491] pci 0000:00:01.0: [0e8d:0801] type 01 class 0x060400
[ 1.273542] pci 0000:00:01.0: reg 0x10: [mem 0x00000000-0x7fffffff]
[ 1.279785] pci 0000:00:01.0: reg 0x14: [mem 0x60410000-0x6041ffff]
[ 1.286116] pci 0000:00:01.0: supports D1
[ 1.290109] pci 0000:00:01.0: PME# supported from D0 D1 D3hot
[ 1.297631] pci 0000:01:00.0: [14c3:7615] type 00 class 0x000280
[ 1.303709] pci 0000:01:00.0: reg 0x10: initial BAR value 0x00000000 invalid
[ 1.310732] pci 0000:01:00.0: reg 0x10: [mem size 0x00100000 64bit]
[ 1.317165] pci 0000:01:00.0: 2.000 Gb/s available PCIe bandwidth, limited by 2.5 GT/s PCIe x1 link at 0000:00:00.0 (capable of 4.000 Gb/s with 5.0 GT/s PCIe x1 link)
[ 1.333589] pci 0000:00:00.0: PCI bridge to [bus 01-ff]
[ 1.338811] pci 0000:00:00.0: bridge window [io 0x0000-0x0fff]
[ 1.344927] pci 0000:00:00.0: bridge window [mem 0x60000000-0x600fffff]
[ 1.351711] pci 0000:00:00.0: bridge window [mem 0x60100000-0x601fffff pref ]
[ 1.358908] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
[ 1.365758] pci 0000:02:00.0: [14c3:7615] type 00 class 0x000280
[ 1.371814] pci 0000:02:00.0: reg 0x10: initial BAR value 0x00000000 invalid
[ 1.378836] pci 0000:02:00.0: reg 0x10: [mem size 0x00100000 64bit]
[ 1.385266] pci 0000:02:00.0: 2.000 Gb/s available PCIe bandwidth, limited by 2.5 GT/s PCIe x1 link at 0000:00:01.0 (capable of 4.000 Gb/s with 5.0 GT/s PCIe x1 link)
[ 1.401775] pci 0000:00:01.0: PCI bridge to [bus 02-ff]
[ 1.407001] pci 0000:00:01.0: bridge window [io 0x0000-0x0fff]
[ 1.413090] pci 0000:00:01.0: bridge window [mem 0x60200000-0x602fffff]
[ 1.419850] pci 0000:00:01.0: bridge window [mem 0x60300000-0x603fffff pref ]
[ 1.427068] pci_bus 0000:02: busn_res: [bus 02-ff] end is updated to 02
[ 1.433726] pci 0000:00:00.0: BAR 0: no space for [mem size 0x80000000]
[ 1.440312] pci 0000:00:00.0: BAR 0: failed to assign [mem size 0x80000000]
[ 1.447268] pci 0000:00:01.0: BAR 0: no space for [mem size 0x80000000]
[ 1.453876] pci 0000:00:01.0: BAR 0: failed to assign [mem size 0x80000000]
[ 1.460811] pci 0000:00:00.0: BAR 8: assigned [mem 0x60000000-0x600fffff]
[ 1.467603] pci 0000:00:00.0: BAR 9: assigned [mem 0x60100000-0x601fffff pref ]
[ 1.474828] pci 0000:00:01.0: BAR 8: assigned [mem 0x60200000-0x602fffff]
[ 1.481589] pci 0000:00:01.0: BAR 9: assigned [mem 0x60300000-0x603fffff pref ]
[ 1.488803] pci 0000:00:00.0: BAR 1: assigned [mem 0x60400000-0x6040ffff]
[ 1.495594] pci 0000:00:01.0: BAR 1: assigned [mem 0x60410000-0x6041ffff]
[ 1.502382] pci 0000:00:00.0: BAR 7: assigned [io 0x1e160000-0x1e160fff]
[ 1.509142] pci 0000:00:01.0: BAR 7: assigned [io 0x1e161000-0x1e161fff]
[ 1.515932] pci 0000:01:00.0: BAR 0: assigned [mem 0x60000000-0x600fffff 64bi t]
[ 1.523251] pci 0000:00:00.0: PCI bridge to [bus 01]
[ 1.528196] pci 0000:00:00.0: bridge window [io 0x1e160000-0x1e160fff]
[ 1.534978] pci 0000:00:00.0: bridge window [mem 0x60000000-0x600fffff]
[ 1.541761] pci 0000:00:00.0: bridge window [mem 0x60100000-0x601fffff pref ]
[ 1.548960] pci 0000:02:00.0: BAR 0: assigned [mem 0x60200000-0x602fffff 64bi t]
[ 1.556268] pci 0000:00:01.0: PCI bridge to [bus 02]
[ 1.561212] pci 0000:00:01.0: bridge window [io 0x1e161000-0x1e161fff]
[ 1.567993] pci 0000:00:01.0: bridge window [mem 0x60200000-0x602fffff]
[ 1.574775] pci 0000:00:01.0: bridge window [mem 0x60300000-0x603fffff pref ]
[ 1.584285] /dev/root: Can't open blockdev
[ 1.588382] VFS: Cannot open root device "(null)" or unknown-block(0,0): erro r -6
[ 1.595893] Please append a correct "root=" boot option; here are the availab le partitions:
[ 1.604254] Kernel panic - not syncing: VFS: Unable to mount root fs on unkno wn-block(0,0)
[ 1.612513] Rebooting in 1 seconds..