[0000.751] [TegraBoot] (version 23.00.2015.14-mobile-1ef66670) [0000.756] Processing in cold boot mode Bootloader 2 [0000.761] A01Q Bootrom Patch rev = 3 [0000.764] Power-up reason: pmu watchdog [0000.768] No Battery Present [0000.771] Platform has Ddr4 type ram [0000.774] max77620 disabling SD1 Remote Sense [0000.778] Setting Ddr voltage to 1125mv [0000.783] Serial Number of Pmic Max77663: 0x40daf [0000.790] Entering ramdump check [0000.793] Get RamDumpCarveOut = 0x0 [0000.796] RamDumpCarveOut=0x0, RamDumperFlag=0xe59ff3f8 [0000.802] Last reboot was clean, booting normally! [0000.806] Sdram initialization is successful [0000.810] SecureOs Carveout Base=0xff800000 Size=0x00800000 [0000.816] GSC1 Carveout Base=0xff700000 Size=0x00100000 [0000.842] GSC2 Carveout Base=0xff600000 Size=0x00100000 [0000.867] GSC3 Carveout Base=0xff500000 Size=0x00100000 [0000.873] GSC4 Carveout Base=0xff400000 Size=0x00100000 [0000.878] GSC5 Carveout Base=0xff300000 Size=0x00100000 [0000.883] BpmpFw Carveout Base=0xff2c0000 Size=0x00040000 [0000.888] Lp0 Carveout Base=0xff2bf000 Size=0x00001000 [0000.904] RamDump Carveout Base=0xff23f000 Size=0x00080000 [0000.909] Platform-DebugCarveout: 0 [0000.912] Nck Carveout Base=0xff03f000 Size=0x00200000 [0000.961] Using GPT Primary to query partitions [0000.967] Loading Tboot-CPU binary [0001.016] Verifying bootloader in OdmNonSecureSBK mode [0001.026] Bootloader load address is 0xa0000000, entry address is 0xa0000258 [0001.035] Bootloader downloaded successfully. [0001.039] Downloaded Tboot-CPU binary to 0xa0000258 [0001.044] MAX77620_GPIO1 Configured. [0001.048] MAX77620_GPIO5 Configured. [0001.052] CPU power rail is up [0001.054] CPU clock enabled [0001.058] Performing RAM repair [0001.061] Updating A64 Warmreset Address to 0xa00002e9 [0001.080] Bootloader DTB Load Address: 0x83000000 [0001.098] Kernel DTB Load Address: 0x83080000 [0001.103] Loading cboot binary [0001.196] Verifying bootloader in OdmNonSecureSBK mode [0001.284] Bootloader load address is 0x8010fda8, entry address is 0x80110000 [0001.293] Bootloader downloaded successfully. [0001.298] GPT: Partition NOT found ! [0001.301] Find Partition via GPT Failed [0001.305] function NvTbootGetBinaryOffsets: 0x845208 error [0001.310] Error in NvTbootLoadBinary: 0x845208 ! [0001.314] GPT: Partition NOT found ! [0001.318] No FB partition [0001.320] Next binary entry address: 0x80110000 [0001.325] BoardId: 2595 [0001.330] dram memory type is 3 [0001.336] WB0 init successful [0001.362] Bpmp FW successfully loaded [0001.365] Set NvDecSticky Bits [0001.369] GSC1 address : ff700000 [0001.373] GSC2 address : ff600000 [0001.376] GSC3 address : ff500000 [0001.380] GSC4 address : ff400000 [0001.384] GSC5 address : ff300000 [0001.387] GSC MC Settings done [0001.392] TOS old plaintext Image length 61440 [0001.398] *** Secure OS image signature not verified *** [0001.404] Loading and Validation of Secure OS Successful [0001.409] NvTbootPackSdramParams: start. [0001.414] NvTbootPackSdramParams: done. [0001.417] Tegraboot started after 743727 us [0001.421] Basic modules init took 348687 us [0001.425] Sec Bootdevice Read Time = 202 ms, Read Size = 8459 KB [0001.431] Next stage binary read took 14385 us [0001.435] Carveout took 252659 us [0001.439] CPU initialization took 92441 us [0001.443] Total time taken by TegraBoot 708172 us [0001.447] Starting CPU & Halting co-processor 64b[0001.583] LPDDR4 Training: Number of tables = 10 [0001.587] EMC Training (SRC-freq: 204000; DST-freq: 408000) [0001.593] EMC Training Successful [0001.596] EMC Training (SRC-freq: 204000; DST-freq: 665600) [0001.602] EMC Training Successful [0001.605] EMC Training (SRC-freq: 204000; DST-freq: 800000) [0001.616] EMC Training Successful [0001.619] EMC Training (SRC-freq: 204000; DST-freq: 1065600) [0001.642] EMC Training Successful [0001.645] EMC Training (SRC-freq: 204000; DST-freq: 1331200) [0001.667] EMC Training Successful [0001.670] EMC Training (SRC-freq: 204000; DST-freq: 1600000) [0001.689] EMC Training Successful [0001.693] Switching to 800000 KHz Success [0001.726] LPDDR4 Training: Number of tables = 10 U-Boot 2015.07-rc2-g2ac3917 (Nov 09 2015 - 13:12:08 -0800) TEGRA210 Model: NVIDIA P2371-0000 DRAM: 3 GiB MC: Tegra SD/MMC: 0, Tegra SD/MMC: 1 *** Warning - bad CRC, using default environment In: serial Out: serial Err: serial Net: Net Initialization Skipped No ethernet found. Hit any key to stop autoboot: 2  0 Tegra210 (P2371-0000) # Tegra210 (P2371-0000) # ums 0 mmc 0 UMS: disk start sector: 0x0, count: 0x1d5a000 |/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-\/-\|/-CTRL+C - Operation aborted Tegra210 (P2371-0000) # Tegra210 (P2371-0000) # env set fdt_copy_node_names /cpus:/psci Tegra210 (P2371-0000) # setenv rootpart 1 Tegra210 (P2371-0000) # setenv devtype mmc Tegra210 (P2371-0000) # setenv devnum 0 Tegra210 (P2371-0000) # part uuid ${devtype} ${devnum}:${rootpart} uuid Tegra210 (P2371-0000) # setenv bootargs ignore_loglevel console=ttyS0,115200n8 earlycon=uart8250,mmio32,0x70006000 rw root=PARTUUID=00000000-0001-0000-788f-a75600000000 rootwait debug earlyprintk init=/bin/bash Tegra210 (P2371-0000) # load ${devtype} ${devnum}:${rootpart} ${kernel_addr_r} /boot/Image.defconfig%jetson-tx1 17527296 bytes read in 878 ms (19 MiB/s) Tegra210 (P2371-0000) # load ${devtype} ${devnum}:${rootpart} ${fdt_addr_r} /boot/tegra210-p2371-0000.dtb 44914 bytes read in 454 ms (95.7 KiB/s) Tegra210 (P2371-0000) # load ${devtype} ${devnum}:${rootpart} ${ramdisk_addr_r} /boot/tegra-ramdisk.img 1627787 bytes read in 495 ms (3.1 MiB/s) Tegra210 (P2371-0000) # ramdisk_size=${filesize} Tegra210 (P2371-0000) # booti ${kernel_addr_r} - ${fdt_addr_r} ## Flattened Device Tree blob at 82000000 Booting using the fdt blob at 0x82000000 Using Device Tree in place at 0000000082000000, end 000000008200df71 Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x411fd071] [ 0.000000] Linux version 4.15.0-next-20180206-230918-g417c85c (jonathanh@sellafield) (gcc version 4.9.2 20140904 (prerelease) (crosstool-NG linaro-1.13.1-4.9-2014.09 - Linaro GCC 4.9-2014.09)) #1 SMP PREEMPT Tue Feb 6 03:36:22 PST 2018 [ 0.000000] Machine model: NVIDIA Tegra210 P2371 (P2530/P2595) reference design [ 0.000000] debug: ignoring loglevel setting. [ 0.000000] earlycon: uart8250 at MMIO32 0x0000000070006000 (options '') [ 0.000000] bootconsole [uart8250] enabled [ 0.000000] efi: Getting EFI parameters from FDT: [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 16 MiB at 0x00000000fe000000 [ 0.000000] NUMA: No NUMA configuration found [ 0.000000] NUMA: Faking a node at [mem 0x0000000000000000-0x000000013fffffff] [ 0.000000] NUMA: NODE_DATA [mem 0x13ffb6e00-0x13ffb88ff] [ 0.000000] Zone ranges: [ 0.000000] DMA32 [mem 0x0000000080000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000013fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000080000000-0x00000000ff1fffff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000013fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x000000013fffffff] [ 0.000000] On node 0 totalpages: 782848 [ 0.000000] DMA32 zone: 8192 pages used for memmap [ 0.000000] DMA32 zone: 0 pages reserved [ 0.000000] DMA32 zone: 520704 pages, LIFO batch:31 [ 0.000000] Normal zone: 4096 pages used for memmap [ 0.000000] Normal zone: 262144 pages, LIFO batch:31 [ 0.000000] psci: probing for conduit method from DT. [ 0.000000] psci: PSCIv0.2 detected in firmware. [ 0.000000] psci: Using standard PSCI v0.2 function IDs [ 0.000000] psci: MIGRATE_INFO_TYPE not supported. [ 0.000000] random: fast init done [ 0.000000] percpu: Embedded 24 pages/cpu @ (ptrval) s57984 r8192 d32128 u98304 [ 0.000000] pcpu-alloc: s57984 r8192 d32128 u98304 alloc=24*4096 [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 [ 0.000000] Detected PIPT I-cache on CPU0 [ 0.000000] CPU features: enabling workaround for ARM erratum 832075 [ 0.000000] CPU features: enabling workaround for ARM erratum 834220 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 770560 [ 0.000000] Policy zone: Normal [ 0.000000] Kernel command line: ignore_loglevel console=ttyS0,115200n8 earlycon=uart8250,mmio32,0x70006000 rw root=PARTUUID=00000000-0001-0000-788f-a75600000000 rootwait debug earlyprintk init=/bin/bash [ 0.000000] software IO TLB [mem 0xfa000000-0xfe000000] (64MB) mapped at [ (ptrval)- (ptrval)] [ 0.000000] Memory: 2981608K/3131392K available (9916K kernel code, 1244K rwdata, 4764K rodata, 1152K init, 404K bss, 133400K reserved, 16384K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=4. [ 0.000000] Tasks RCU enabled. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4 [ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0 [ 0.000000] GIC: Using split EOI/Deactivate mode [ 0.000000] /interrupt-controller@60004000: 192 interrupts forwarded to /interrupt-controller@50041000 [ 0.000000] boot misc1 0x0: expected 0x20 [ 0.000000] (comparison mask = 0xffffff) [ 0.000000] PLL_X already enabled. Postponing set full defaults [ 0.000000] arch_timer: cp15 timer(s) running at 19.20MHz (phys). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns [ 0.000005] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns [ 0.008441] Console: colour dummy device 80x25 [ 0.013091] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=76800) [ 0.023700] pid_max: default: 32768 minimum: 301 [ 0.028550] Security Framework initialized [ 0.034956] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.043517] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.050873] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.057842] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.081301] ASID allocator initialised with 32768 entries [ 0.086967] Hierarchical SRCU implementation. [ 0.101487] Speedo Revision 4 [ 0.104576] Tegra Revision: A01 SKU: 1 CPU Process: -22 SoC Process: -22 [ 0.112530] EFI services will not be available. [ 0.125248] smp: Bringing up secondary CPUs ... [ 0.158071] Detected PIPT I-cache on CPU1 [ 0.158118] CPU1: Booted secondary processor 0x0000000001 [0x411fd071] [ 0.186134] Detected PIPT I-cache on CPU2 [ 0.186169] CPU2: Booted secondary processor 0x0000000002 [0x411fd071] [ 0.214202] Detected PIPT I-cache on CPU3 [ 0.214235] CPU3: Booted secondary processor 0x0000000003 [0x411fd071] [ 0.214310] smp: Brought up 1 node, 4 CPUs [ 0.251219] SMP: Total of 4 processors activated. [ 0.256089] CPU features: detected feature: 32-bit EL0 Support [ 0.262135] CPU features: detected feature: Kernel page table isolation (KPTI) [ 0.270486] CPU: All CPU(s) started at EL2 [ 0.274741] alternatives: patching kernel code [ 0.283920] devtmpfs: initialized [ 0.294474] Built 1 zonelists, mobility grouping on. Total pages: 749498 [ 0.301509] Policy zone: Normal [ 0.305913] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.316045] futex hash table entries: 1024 (order: 5, 131072 bytes) [ 0.322704] pinctrl core: initialized pinctrl subsystem [ 0.329578] DMI not present or invalid. [ 0.333901] NET: Registered protocol family 16 [ 0.338848] audit: initializing netlink subsys (disabled) [ 0.344542] audit: type=2000 audit(0.284:1): state=initialized audit_enabled=0 res=1 [ 0.352570] cpuidle: using governor menu [ 0.352846] vdso: 2 pages (1 code @ 00000000675ef592, 1 data @ 00000000f50ff282) [ 0.364334] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 0.372358] DMA: preallocated 256 KiB pool for atomic allocations [ 0.381048] Serial: AMBA PL011 UART driver [ 0.408715] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 0.417162] cryptd: max_cpu_qlen set to 1000 [ 0.422198] ACPI: Interpreter disabled. [ 0.427016] vgaarb: loaded [ 0.430050] SCSI subsystem initialized [ 0.434107] libata version 3.00 loaded. [ 0.438379] usbcore: registered new interface driver usbfs [ 0.444110] usbcore: registered new interface driver hub [ 0.449682] usbcore: registered new device driver usb [ 0.455917] pps_core: LinuxPPS API ver. 1 registered [ 0.461061] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 0.470534] PTP clock support registered [ 0.474725] EDAC MC: Ver: 3.0.0 [ 0.478513] Advanced Linux Sound Architecture Driver Initialized. [ 0.485471] clocksource: Switched to clocksource arch_sys_counter [ 0.491937] VFS: Disk quotas dquot_6.6.0 [ 0.496066] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.503321] pnp: PnP ACPI: disabled [ 0.513611] NET: Registered protocol family 2 [ 0.518627] tcp_listen_portaddr_hash hash table entries: 2048 (order: 3, 32768 bytes) [ 0.526814] TCP established hash table entries: 32768 (order: 6, 262144 bytes) [ 0.534587] TCP bind hash table entries: 32768 (order: 7, 524288 bytes) [ 0.541703] TCP: Hash tables configured (established 32768 bind 32768) [ 0.548593] UDP hash table entries: 2048 (order: 4, 65536 bytes) [ 0.554874] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes) [ 0.561704] NET: Registered protocol family 1 [ 0.566543] RPC: Registered named UNIX socket transport module. [ 0.572687] RPC: Registered udp transport module. [ 0.577554] RPC: Registered tcp transport module. [ 0.582421] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.589088] PCI: CLS 0 bytes, default 128 [ 0.593877] kvm [1]: 8-bit VMID [ 0.597122] kvm [1]: IDMAP page: 80a1f000 [ 0.601280] kvm [1]: HYP VA range: 800000000000:ffffffffffff [ 0.608174] kvm [1]: vgic-v2@50044000 [ 0.612089] kvm [1]: vgic interrupt IRQ1 [ 0.616166] kvm [1]: virtual timer IRQ4 [ 0.620238] kvm [1]: Hyp mode initialized successfully [ 0.628542] Initialise system trusted keyrings [ 0.633272] workingset: timestamp_bits=44 max_order=20 bucket_order=0 [ 0.646217] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.652860] NFS: Registering the id_resolver key type [ 0.658116] Key type id_resolver registered [ 0.662454] Key type id_legacy registered [ 0.666617] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 0.673715] 9p: Installing v9fs 9p2000 file system support [ 0.682051] Key type asymmetric registered [ 0.686296] Asymmetric key parser 'x509' registered [ 0.691489] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245) [ 0.699151] io scheduler noop registered [ 0.703389] io scheduler cfq registered (default) [ 0.708265] io scheduler mq-deadline registered [ 0.712961] io scheduler kyber registered [ 0.727034] EINJ: ACPI disabled. [ 0.735027] tegra-apbdma 60020000.dma: Tegra20 APB DMA driver register 32 channels [ 0.744851] tegra-pmc 7000e400.pmc: i2c-thermtrip node not found, emergency thermal reset disabled. [ 0.758798] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.767389] console [ttyS0] disabled [ 0.771162] 70006000.serial: ttyS0 at MMIO 0x70006000 (irq = 313, base_baud = 25500000) is a Tegra [ 0.780465] console [ttyS0] enabled [ 0.780465] console [ttyS0] enabled [ 0.787555] bootconsole [uart8250] disabled [ 0.787555] bootconsole [uart8250] disabled [ 0.796608] SuperH (H)SCI(F) driver initialized [ 0.801432] msm_serial: driver initialized [ 0.806059] cacheinfo: Unable to detect cache hierarchy for CPU 0 [ 0.818071] loop: module loaded [ 0.824390] libphy: Fixed MDIO Bus: probed [ 0.829067] tun: Universal TUN/TAP device driver, 1.6 [ 0.834760] thunder_xcv, ver 1.0 [ 0.838059] thunder_bgx, ver 1.0 [ 0.841319] nicpf, ver 1.0 [ 0.844297] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k [ 0.850136] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 0.856111] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.4.0-k [ 0.863076] igb: Copyright (c) 2007-2014 Intel Corporation. [ 0.868693] igbvf: Intel(R) Gigabit Virtual Function Network Driver - version 2.4.0-k [ 0.876520] igbvf: Copyright (c) 2009 - 2012 Intel Corporation. [ 0.882709] sky2: driver version 1.30 [ 0.886678] usbcore: registered new interface driver r8152 [ 0.892309] VFIO - User Level meta-driver version: 0.3 [ 0.898351] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.904886] ehci-pci: EHCI PCI platform driver [ 0.909379] ehci-platform: EHCI generic platform driver [ 0.914722] ehci-orion: EHCI orion driver [ 0.918813] ehci-exynos: EHCI EXYNOS driver [ 0.923073] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.929267] ohci-pci: OHCI PCI platform driver [ 0.933759] ohci-platform: OHCI generic platform driver [ 0.939077] ohci-exynos: OHCI EXYNOS driver [ 0.943627] usbcore: registered new interface driver usb-storage [ 0.951856] tegra_rtc 7000e000.rtc: rtc core: registered 7000e000.rtc as rtc1 [ 0.959043] tegra_rtc 7000e000.rtc: Tegra internal Real Time Clock [ 0.965384] i2c /dev entries driver [ 0.971594] sdhci: Secure Digital Host Controller Interface driver [ 0.977780] sdhci: Copyright(c) Pierre Ossman [ 0.982308] Synopsys Designware Multimedia Card Interface Driver [ 0.988879] sdhci-pltfm: SDHCI platform and OF driver helper [ 1.002916] mmc0: Unknown controller version (3). You may experience problems. [ 1.041362] mmc0: SDHCI controller on 700b0600.sdhci [700b0600.sdhci] using ADMA 64-bit [ 1.050321] ledtrig-cpu: registered to indicate activity on CPUs [ 1.057365] usbcore: registered new interface driver usbhid [ 1.063007] usbhid: USB HID core driver [ 1.068760] NET: Registered protocol family 17 [ 1.073313] 9pnet: Installing 9P2000 support [ 1.077676] Key type dns_resolver registered [ 1.082603] registered taskstats version 1 [ 1.086785] Loading compiled-in X.509 certificates [ 1.101749] hctosys: unable to open rtc device (rtc0) [ 1.107529] ALSA device list: [ 1.110514] No soundcards found. [ 1.114285] Waiting for root device PARTUUID=00000000-0001-0000-788f-a75600000000... [ 1.147445] mmc0: new high speed MMC card at address 0001 [ 1.153646] mmcblk0: mmc0:0001 SDW16G 14.7 GiB [ 1.158770] mmcblk0boot0: mmc0:0001 SDW16G partition 1 4.00 MiB [ 1.165283] mmcblk0boot1: mmc0:0001 SDW16G partition 2 4.00 MiB [ 1.171362] mmcblk0rpmb: mmc0:0001 SDW16G partition 3 4.00 MiB, chardev (240:0) [ 1.181308] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15 p16 p17 p18 [ 1.207626] EXT4-fs (mmcblk0p1): couldn't mount as ext3 due to feature incompatibilities [ 1.225154] EXT4-fs (mmcblk0p1): warning: mounting fs with errors, running e2fsck is recommended [ 1.240297] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null) [ 1.248445] VFS: Mounted root (ext4 filesystem) on device 179:1. [ 1.262559] devtmpfs: mounted [ 1.266247] Freeing unused kernel memory: 1152K bash: cannot set terminal process group (-1): Inappropriate ioctl for device bash: no job control in this shell root@(none):/#