like this is the explanation
root@sg-armada-370-sta:/ # fdisk -l
root@sg-armada-370-sta:/ # dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.6.6 (
root@fvdwsl-5big2.local) (gcc version 4.9.3 (GCC) ) #2 Thu May 31 16:10:51 CEST 2018
[ 0.000000] CPU: ARMv7 Processor [561f5811] revision 1 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[ 0.000000] Machine model: Seagate Personal Cloud (Cumulus, SRN21C)
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] On node 0 totalpages: 131072
[ 0.000000] free_area_init_node: node 0, pgdat c09d800c, node_mem_map dfb7a000
[ 0.000000] Normal zone: 1152 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 131072 pages, LIFO batch:31
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 129920
[ 0.000000] Kernel command line: console=ttyS0,115200
netconsole=6666@192.168.5.252/,6666@192.168.5.121/
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Memory: 508676K/524288K available (5812K kernel code, 261K rwdata, 1984K rodata, 1992K init, 410K bss, 15612K reserved, 0K cma-reserved)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0xe0800000 - 0xff800000 ( 496 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0xc0008000 - 0xc07a530c (7797 kB)
[ 0.000000] .init : 0xc07a6000 - 0xc0998000 (1992 kB)
[ 0.000000] .data : 0xc0998000 - 0xc09d9500 ( 262 kB)
[ 0.000000] .bss : 0xc09d9500 - 0xc0a3fe08 ( 411 kB)
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: DT/platform modifies aux control register: 0x12086302 -> 0x1a086302
[ 0.000000] Aurora cache controller enabled, 4 ways, 256 kB
[ 0.000000] Aurora: CACHE_ID 0x00000100, AUX_CTRL 0x1a086302
[ 0.000000] Switching to timer-based delay loop, resolution 48ns
[ 0.000007] sched_clock: 32 bits at 20MHz, resolution 48ns, wraps every 103356786663ns
[ 0.000023] clocksource: armada_370_xp_clocksource: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 91987540234 ns
[ 0.000292] Console: colour dummy device 80x30
[ 0.000310] Calibrating delay loop (skipped), value calculated using timer frequency.. 41.55 BogoMIPS (lpj=207773)
[ 0.000323] pid_max: default: 32768 minimum: 301
[ 0.000449] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.000459] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.001082] CPU: Testing write buffer coherency: ok
[ 0.001315] Setting up static identity map for 0x8200 - 0x8258
[ 0.001607] mvebu-soc-id: MVEBU SoC ID=0x6710, Rev=0x1
[ 0.001736] mvebu-pmsu: Initializing Power Management Service Unit
[ 0.005449] VFP support v0.3: implementor 56 architecture 2 part 20 variant 9 rev 6
[ 0.005676] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.005783] xor: measuring software checksum speed
[ 0.100056] arm4regs : 919.600 MB/sec
[ 0.200060] 8regs : 772.000 MB/sec
[ 0.300056] 32regs : 882.000 MB/sec
[ 0.300064] xor: using function: arm4regs (919.600 MB/sec)
[ 0.300086] pinctrl core: initialized pinctrl subsystem
[ 0.300789] NET: Registered protocol family 16
[ 0.301270] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.301868] cpuidle: using governor ladder
[ 0.305982] sram soc:sa-sram: found no memory resource
[ 0.306004] sram: probe of soc:sa-sram failed with error -22
[ 0.306539] No ATAGs?
[ 0.306554] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.306676] mvebu-pmsu: CPU idle is currently broken: disabling
[ 0.480340] raid6: int32x1 gen() 142 MB/s
[ 0.650208] raid6: int32x1 xor() 136 MB/s
[ 0.820115] raid6: int32x2 gen() 213 MB/s
[ 0.990078] raid6: int32x2 xor() 155 MB/s
[ 1.160088] raid6: int32x4 gen() 179 MB/s
[ 1.330085] raid6: int32x4 xor() 140 MB/s
[ 1.500283] raid6: int32x8 gen() 175 MB/s
[ 1.670119] raid6: int32x8 xor() 116 MB/s
[ 1.670126] raid6: using algorithm int32x2 gen() 213 MB/s
[ 1.670132] raid6: .... xor() 155 MB/s, rmw enabled
[ 1.670138] raid6: using intx1 recovery algorithm
[ 1.670691] SCSI subsystem initialized
[ 1.670865] libata version 3.00 loaded.
[ 1.672376] clocksource: Switched to clocksource armada_370_xp_clocksource
[ 1.672678] FS-Cache: Loaded
[ 1.678438] NET: Registered protocol family 2
[ 1.678946] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 1.678987] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[ 1.679024] TCP: Hash tables configured (established 4096 bind 4096)
[ 1.679094] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 1.679108] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 1.679226] NET: Registered protocol family 1
[ 1.679491] RPC: Registered named UNIX socket transport module.
[ 1.679499] RPC: Registered udp transport module.
[ 1.679505] RPC: Registered tcp transport module.
[ 1.679510] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 1.679529] PCI: CLS 0 bytes, default 64
[ 1.782013] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 1.782959] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 1.783584] workingset: timestamp_bits=13 max_order=17 bucket_order=4
[ 1.783934] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 1.784172] Installing knfsd (copyright (C) 1996
okir@monad.swb.de).
[ 1.784451] ntfs: driver 2.1.32 [Flags: R/W].
[ 1.784486] fuse init (API version 7.24)
[ 1.784734] JFS: nTxBlock = 3974, nTxLock = 31792
[ 1.790041] async_tx: api initialized (async)
[ 1.790133] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[ 1.790146] io scheduler noop registered
[ 1.790156] io scheduler deadline registered
[ 1.790180] io scheduler cfq registered (default)
[ 1.790822] armada-370-pinctrl f1018000.pin-ctrl: registered pinctrl driver
[ 1.791589] irq: Cannot allocate irq_descs @ IRQ39, assuming pre-allocated
[ 1.791971] irq: Cannot allocate irq_descs @ IRQ71, assuming pre-allocated
[ 1.792245] irq: Cannot allocate irq_descs @ IRQ103, assuming pre-allocated
[ 1.792962] mvebu-pcie soc:pcie-controller: PCI host bridge to bus 0000:00
[ 1.792978] pci_bus 0000:00: root bus resource [io 0x1000-0xfffff]
[ 1.792988] pci_bus 0000:00: root bus resource [mem 0xf8000000-0xffdfffff]
[ 1.792999] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 1.793029] pci 0000:00:01.0: [11ab:6710] type 01 class 0x060400
[ 1.793246] PCI: bus0: Fast back to back transfers disabled
[ 1.793258] pci 0000:00:01.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 1.793400] pci 0000:01:00.0: [1b21:1142] type 00 class 0x0c0330
[ 1.793432] pci 0000:01:00.0: reg 0x10: [mem 0x40000000-0x40007fff 64bit]
[ 1.793539] pci 0000:01:00.0: PME# supported from D3hot
[ 1.793740] PCI: bus1: Fast back to back transfers disabled
[ 1.793753] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
[ 1.793822] pci 0000:00:01.0: BAR 8: assigned [mem 0xf8000000-0xf80fffff]
[ 1.793837] pci 0000:01:00.0: BAR 0: assigned [mem 0xf8000000-0xf8007fff 64bit]
[ 1.793854] pci 0000:00:01.0: PCI bridge to [bus 01]
[ 1.793866] pci 0000:00:01.0: bridge window [mem 0xf8000000-0xf80fffff]
[ 1.793906] pci 0000:00:01.0: enabling device (0140 -> 0142)
[ 1.794099] mv_xor f1060800.xor: Marvell shared XOR driver
[ 1.833108] mv_xor f1060800.xor: Marvell XOR (Registers Mode): ( xor cpy intr )
[ 1.834104] mv_xor f1060900.xor: Marvell shared XOR driver
[ 1.873105] mv_xor f1060900.xor: Marvell XOR (Registers Mode): ( xor cpy intr )
[ 1.874260] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 1.875493] console [ttyS0] disabled
[ 1.895622] f1012000.serial: ttyS0 at MMIO 0xf1012000 (irq = 20, base_baud = 12500000) is a 16550A
[ 2.581170] console [ttyS0] enabled
[ 2.594981] brd: module loaded
[ 2.603157] loop: module loaded
[ 2.606798] sata_mv f10a0000.sata: version 1.28
[ 2.606950] sata_mv f10a0000.sata: slots 32 ports 1
[ 2.612847] scsi host0: sata_mv
[ 2.616242] ata1: SATA max UDMA/133 irq 28
[ 2.621849] m25p80 spi0.0: mx25l8005 (1024 Kbytes)
[ 2.626708] 1 ofpart partitions found on MTD device spi0.0
[ 2.632219] Creating 1 MTD partitions on "spi0.0":
[ 2.637045] 0x000000000000-0x000000100000 : "u-boot"
[ 2.643703] libphy: Fixed MDIO Bus: probed
[ 2.647831] tun: Universal TUN/TAP device driver, 1.6
[ 2.652927] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
[ 2.659249] ipddp.c:v0.01 8/28/97 Bradford W. Johnson <johns393@maroon.tc.umn.edu>
[ 2.667346] ipddp0: Appletalk-IP Encap. mode by Bradford W. Johnson <johns393@maroon.tc.umn.edu>
[ 2.676425] libphy: orion_mdio_bus: probed
[ 2.682510] mvneta f1074000.ethernet eth0: Using hardware mac address 00:10:75:58:32:7f
[ 2.690643] PPP generic driver version 2.4.2
[ 2.695077] PPP Deflate Compression module registered
[ 2.700170] PPP MPPE Compression module registered
[ 2.705003] NET: Registered protocol family 24
[ 2.709868] aoe: cannot create debugfs directory
[ 2.714658] aoe: AoE v85 initialised.
[ 2.718504] rtc-mv f1010300.rtc: invalid RTC date, resetting to January 1st, 2013
[ 2.726255] rtc-mv f1010300.rtc: rtc core: registered f1010300.rtc as rtc0
[ 2.744194] md: linear personality registered for level -1
[ 2.749715] md: raid0 personality registered for level 0
[ 2.755072] md: raid1 personality registered for level 1
[ 2.760414] md: raid10 personality registered for level 10
[ 2.766184] md: raid6 personality registered for level 6
[ 2.771522] md: raid5 personality registered for level 5
[ 2.776873] md: raid4 personality registered for level 4
[ 2.782366] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised:
dm-devel@redhat.com[ 2.791080] device-mapper: multipath: version 1.11.0 loaded
[ 2.796707] device-mapper: multipath round-robin: version 1.1.0 loaded
[ 2.803280] device-mapper: multipath queue-length: version 0.2.0 loaded
[ 2.809931] device-mapper: multipath service-time: version 0.3.0 loaded
[ 2.816640] device-mapper: dm-log-userspace: version 1.3.0 loaded
[ 2.822776] device-mapper: raid: Loading target version 1.7.0
[ 2.828947] ledtrig-cpu: registered to indicate activity on CPUs
[ 2.835250] marvell-cesa: probe of f1090000.crypto failed with error -22
[ 2.842100] hidraw: raw HID events driver (C) Jiri Kosina
[ 2.847837] Netfilter messages via NETLINK v0.30.
[ 2.852592] nfnl_acct: registering with nfnetlink.
[ 2.857429] nf_conntrack version 0.5.0 (7948 buckets, 31792 max)
[ 2.864106] ipip: IPv4 over IPv4 tunneling driver
[ 2.869572] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 2.875121] NET: Registered protocol family 10
[ 2.880521] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 2.886138] sit: IPv6 over IPv4 tunneling driver
[ 2.891381] NET: Registered protocol family 17
[ 2.895908] bridge: automatic filtering via arp/ip/ip6tables has been deprecated. Update your scripts to load br_netfilter if you need this.
[ 2.908603] Bridge firewalling registered
[ 2.912645] NET: Registered protocol family 5
[ 2.917137] Key type dns_resolver registered
[ 2.921896] registered taskstats version 1
[ 2.926995] netpoll: netconsole: local port 6666
[ 2.931651] netpoll: netconsole: local IPv4 address 192.168.5.252
[ 2.937789] netpoll: netconsole: interface 'eth0'
[ 2.942523] netpoll: netconsole: remote port 6666
[ 2.947248] netpoll: netconsole: remote IPv4 address 192.168.5.121
[ 2.953463] netpoll: netconsole: remote ethernet address ff:ff:ff:ff:ff:ff
[ 2.960370] netpoll: netconsole: device eth0 not up yet, forcing it
[ 3.042636] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 7.062378] netpoll: netconsole: timeout waiting for carrier
[ 7.068114] netpoll: netconsole: eth0 doesn't support polling, aborting
[ 7.074769] netconsole: cleaning up
[ 7.078789] input: gpio-keys as /devices/platform/gpio-keys/input/input0
[ 7.085746] rtc-mv f1010300.rtc: setting system clock to 2013-01-01 19:19:14 UTC (1357067954)
[ 8.043129] mvneta f1074000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
[ 8.051011] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 8.182382] ata1: link is slow to respond, please be patient (ready=0)
[ 12.622382] ata1: SRST failed (errno=-16)
[ 18.142382] ata1: link is slow to respond, please be patient (ready=0)
[ 22.642381] ata1: SRST failed (errno=-16)
[ 28.162381] ata1: link is slow to respond, please be patient (ready=0)
[ 48.322397] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl F300)
[ 48.330961] ata1.00: failed to IDENTIFY (INIT_DEV_PARAMS failed, err_mask=0x80)
[ 58.842380] ata1: link is slow to respond, please be patient (ready=0)
[ 63.342380] ata1: SRST failed (errno=-16)
[ 68.862380] ata1: link is slow to respond, please be patient (ready=0)
[ 73.362380] ata1: SRST failed (errno=-16)
[ 78.882380] ata1: link is slow to respond, please be patient (ready=0)
[ 90.702394] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl F300)
[ 90.710941] ata1.00: failed to IDENTIFY (INIT_DEV_PARAMS failed, err_mask=0x80)
[ 90.718298] ata1: limiting SATA link speed to 1.5 Gbps
[ 101.222381] ata1: link is slow to respond, please be patient (ready=0)
[ 105.722380] ata1: SRST failed (errno=-16)
[ 111.242380] ata1: link is slow to respond, please be patient (ready=0)
[ 115.742380] ata1: SRST failed (errno=-16)
[ 121.262380] ata1: link is slow to respond, please be patient (ready=0)
[ 132.902393] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl F310)
[ 132.910938] ata1.00: failed to IDENTIFY (INIT_DEV_PARAMS failed, err_mask=0x80)
[ 143.422380] ata1: link is slow to respond, please be patient (ready=0)
[ 147.922379] ata1: SRST failed (errno=-16)
[ 153.442380] ata1: link is slow to respond, please be patient (ready=0)
[ 157.942379] ata1: SRST failed (errno=-16)
[ 163.462379] ata1: link is slow to respond, please be patient (ready=0)
[ 183.682392] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl F310)
[ 183.691497] Freeing unused kernel memory: 1992K (c07a6000 - c0998000)
[ 183.697983] This architecture does not have kernel memory protection.
root@sg-armada-370-sta:/ #