Re: No ufs remount: panic`ìng aarch64 boot from SD-card vfs_mountroot

From: Klaus Küchemann <maciphone2_at_googlemail.com>
Date: Fri, 21 Feb 2020 05:54:17 +0100
> Am 21.02.2020 um 05:34 schrieb Warner Losh <imp_at_bsdimp.com>:
> 
> 
> 
> On Thu, Feb 20, 2020, 9:21 PM Klaus Küchemann via freebsd-arm <freebsd-arm_at_freebsd.org> wrote:
> panic`ìng aarch64 boot from SD-card since approx. 1-2 weeks on head 13-current:
> …….

> 
> Is mmcsd0 probed?
> 
> Warner




Hi imp, 

I remember approx. 1 week ago I reverted all your changes in /sys/dev/sdhci/sdhci.c (Create a convenince wrapper to fill in a CAM_PATH_INQ request for MMC…/ No need to have an extra layer of indirection here. Call the sdhci_ca…), 
I recompiled, But it seems you’re innocent :-)  Ha Ha , reverting didn’t help out.

> Is mmcsd0 probed?
good point , here’s the complete console-output :
— output---
U-Boot TPL 2020.01 (Feb 13 2020 - 12:38:25)
Channel 0: LPDDR4, 50MHz
BW=32 Col=10 Bk=8 CS0 Row=16/15 CS=1 Die BW=16 Size=2048MB
Channel 1: LPDDR4, 50MHz
BW=32 Col=10 Bk=8 CS0 Row=16/15 CS=1 Die BW=16 Size=2048MB
256B stride
256B stride
lpddr4_set_rate: change freq to 400000000 mhz 0, 1
lpddr4_set_rate: change freq to 800000000 mhz 1, 0
Trying to boot from BOOTROM
Returning to boot ROM...

U-Boot SPL 2020.01 (Feb 13 2020 - 12:38:25 -0700)
Trying to boot from MMC1
NOTICE:  BL31: v2.2(debug):2.2
NOTICE:  BL31: Built : 11:37:48, Feb 13 2020
INFO:    GICv3 with legacy support detected. ARM GICv3 driver initialized in EL3
INFO:    plat_rockchip_pmu_init(1624): pd status 3e
INFO:    BL31: Initializing runtime services
INFO:    BL31: cortex_a53: CPU workaround for 855873 was applied
INFO:    BL31: Preparing for EL3 exit to normal world
INFO:    Entry point address = 0x200000
INFO:    SPSR = 0x3c9


U-Boot 2020.01 (Feb 13 2020 - 12:38:25 -0700)

Model: Pine64 RockPro64
DRAM:  3.9 GiB
PMIC:  RK808 
MMC:   dwmmc_at_fe320000: 1, sdhci_at_fe330000: 0
Loading Environment from MMC... Card did not respond to voltage select!
*** Warning - No block device, using default environment

In:    serial_at_ff1a0000
Out:   serial_at_ff1a0000
Err:   serial_at_ff1a0000
Model: Pine64 RockPro64
rockchip_dnl_key_pressed: adc_channel_single_shot fail!
Net:   eth0: ethernet_at_fe300000
Hit any key to stop autoboot:  0 
Card did not respond to voltage select!
switch to partitions #0, OK
mmc1 is current device
Scanning mmc 1:1...
73632 bytes read in 10 ms (7 MiB/s)
Found EFI removable media binary efi/boot/bootaa64.efi
Scanning disk dwmmc_at_fe320000.blk...
** Unrecognized filesystem type **
Card did not respond to voltage select!
Scanning disk sdhci_at_fe330000.blk...
Disk sdhci_at_fe330000.blk not ready
Found 3 disks
BootOrder not defined
EFI boot manager: Cannot load any image
679488 bytes read in 36 ms (18 MiB/s)
Consoles: EFI console  
    Reading loader env vars from /efi/freebsd/loader.env
Setting currdev to disk0p1:
FreeBSD/arm64 EFI loader, Revision 1.1
(Thu Feb 20 07:09:25 UTC 2020 root_at_releng1.nyi.freebsd.org)

   Command line arguments: loader.efi
   Image base: 0xf4e6a000
   EFI version: 2.80
   EFI Firmware: Das U-Boot (rev 8224.256)
   Console: efi (0x1000)
   Load Path: /efi\boot\bootaa64.efi
   Load Device: /VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b)/SD(1)/SD(0)/HD(1,0x01,0,0x81f,0x18fa8)
Trying ESP: /VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b)/SD(1)/SD(0)/HD(1,0x01,0,0x81f,0x18fa8)
Setting currdev to disk0p1:
Trying: /VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b)/SD(1)/SD(0)/HD(2,0x01,0,0x197c7,0x5e6821)
Setting currdev to disk0p2:
Loading /boot/defaults/loader.conf
Loading /boot/device.hints
Loading /boot/loader.conf
Loading /boot/loader.conf.local
\

Loading kernel...
/boot/kernel/kernel text=0x9a7d74 data=0x191628 data=0x0+0x79d2e0 syms=[0x8+0x10d658+0x8+0x1320b0]
Loading configured modules...
/boot/kernel/umodem.ko text=0x2100 text=0x13a0 data=0x6e0+0x10 syms=[0x8+0xf48+0x8+0xb6e]
can't find '/boot/entropy'

Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...               
Using DTB provided by EFI at 0x80eb000.
---<<BOOT>>---
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2020 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 13.0-CURRENT #0 r358133: Thu Feb 20 08:26:15 UTC 2020
    root_at_releng1.nyi.freebsd.org:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC arm64
FreeBSD clang version 9.0.1 (git_at_github.com:llvm/llvm-project.git c1a0a213378a458fbea1a5c77b315c7dce08fd05) (based on LLVM 9.0.1)
WARNING: WITNESS option enabled, expect reduced performance.
VT: init without driver.
module firmware already present!
KLD file umodem.ko is missing dependencies
Starting CPU 1 (1)
Starting CPU 2 (2)
Starting CPU 3 (3)
Starting CPU 4 (100)
Starting CPU 5 (101)
FreeBSD/SMP: Multiprocessor System Detected: 6 CPUs
arc4random: WARNING: initial seeding bypassed the cryptographic random device because it was not yet seeded and the knob 'bypass_before_seeding' was enabled.
random: entropy device external interface
MAP f4f16000 mode 2 pages 1
MAP f4f21000 mode 2 pages 1
MAP f7f30000 mode 2 pages 16
WARNING: Device "kbd" is Giant locked and may be deleted before FreeBSD 13.0.
kbd0 at kbdmux0
WARNING: Device "openfirm" is Giant locked and may be deleted before FreeBSD 13.0.
ofwbus0: <Open Firmware Device Tree>
clk_fixed0: <Fixed clock> on ofwbus0
simplebus0: <Flattened device tree simple bus> on ofwbus0
rk_grf0: <RockChip General Register Files> mem 0xff320000-0xff320fff on ofwbus0
rk3399_pmucru0: <Rockchip RK3399 PMU Clock and Reset Unit> mem 0xff750000-0xff750fff on ofwbus0
rk3399_cru0: <Rockchip RK3399 Clock and Reset Unit> mem 0xff760000-0xff760fff on ofwbus0
rk_grf1: <RockChip General Register Files> mem 0xff770000-0xff77ffff on ofwbus0
clk_fixed1: <Fixed clock> on ofwbus0
regfix0: <Fixed Regulator> on ofwbus0
regfix1: <Fixed Regulator> on ofwbus0
regfix2: <Fixed Regulator> on ofwbus0
regfix3: <Fixed Regulator> on ofwbus0
regfix4: <Fixed Regulator> on ofwbus0
regfix5: <Fixed Regulator> on ofwbus0
regfix6: <Fixed Regulator> on ofwbus0
regfix7: <Fixed Regulator> on ofwbus0
simple_mfd0: <Simple MFD (Multi-Functions Device)> mem 0xff310000-0xff310fff on ofwbus0
psci0: <ARM Power State Co-ordination Interface Driver> on ofwbus0
gic0: <ARM Generic Interrupt Controller v3.0> mem 0xfee00000-0xfee0ffff,0xfef00000-0xfefbffff,0xfff00000-0xfff0ffff,0xfff10000-0xfff1ffff,0xfff20000-0xfff2ffff irq 18 on ofwbus0
its0: <ARM GIC Interrupt Translation Service> mem 0xfee20000-0xfee3ffff on gic0
rk_pinctrl0: <RockChip Pinctrl controller> on ofwbus0
gpio0: <RockChip GPIO Bank controller> mem 0xff720000-0xff7200ff irq 70 on rk_pinctrl0
gpiobus0: <OFW GPIO bus> on gpio0
gpio1: <RockChip GPIO Bank controller> mem 0xff730000-0xff7300ff irq 71 on rk_pinctrl0
gpiobus1: <OFW GPIO bus> on gpio1
gpio2: <RockChip GPIO Bank controller> mem 0xff780000-0xff7800ff irq 72 on rk_pinctrl0
gpiobus2: <OFW GPIO bus> on gpio2
gpio3: <RockChip GPIO Bank controller> mem 0xff788000-0xff7880ff irq 73 on rk_pinctrl0
gpiobus3: <OFW GPIO bus> on gpio3
gpio4: <RockChip GPIO Bank controller> mem 0xff790000-0xff7900ff irq 74 on rk_pinctrl0
gpiobus4: <OFW GPIO bus> on gpio4
rk_i2c0: <RockChip I2C> mem 0xff110000-0xff110fff irq 20 on ofwbus0
iicbus0: <OFW I2C bus> on rk_i2c0
rk_i2c1: <RockChip I2C> mem 0xff130000-0xff130fff irq 22 on ofwbus0
iicbus1: <OFW I2C bus> on rk_i2c1
rk_i2c2: <RockChip I2C> mem 0xff3c0000-0xff3c0fff irq 38 on ofwbus0
iicbus2: <OFW I2C bus> on rk_i2c2
syr8270: <Silergy SYR827 regulator> at addr 0x80 on iicbus2
rk_i2c3: <RockChip I2C> mem 0xff3d0000-0xff3d0fff irq 39 on ofwbus0
iicbus3: <OFW I2C bus> on rk_i2c3
rk805_pmu0: <RockChip RK805 PMIC> at addr 0x36 irq 75 on iicbus2
REGNODE_INIT failed: 6
REGNODE_INIT failed: 6
generic_timer0: <ARMv8 Generic Timer> irq 2,3,4,5 on ofwbus0
Timecounter "ARM MPCore Timecounter" frequency 24000000 Hz quality 1000
Event timer "ARM MPCore Eventtimer" frequency 24000000 Hz quality 1000
rk_tsadc0: <RockChip temperature sensors> mem 0xff260000-0xff2600ff irq 35 on ofwbus0
rk_iodomain0: <RockChip IO Voltage Domain> mem 0-0xff31ffff,0-0xfff on rk_grf0
rk_iodomain1: <RockChip IO Voltage Domain> mem 0-0xff76ffff,0-0xffff on rk_grf1
rk_usb2phy0: <Rockchip RK3399 USB2PHY> mem 0-0xff76ffff,0-0xffff on rk_grf1
rk_usb2phy1: <Rockchip RK3399 USB2PHY> mem 0-0xff76ffff,0-0xffff on rk_grf1
rk_emmcphy0: <Rockchip RK3399 eMMC PHY> mem 0-0xff76ffff,0-0xffff on rk_grf1
rk_pcie_phy0: <Rockchip RK3399 PCIe PHY> mem 0-0xff76ffff,0-0xffff on rk_grf1
rk_typec_phy0: <Rockchip RK3399 PHY TYPEC> mem 0xff7c0000-0xff7fffff on ofwbus0
rk_typec_phy1: <Rockchip RK3399 PHY TYPEC> mem 0xff800000-0xff83ffff on ofwbus0
cpulist0: <Open Firmware CPU Group> on ofwbus0
cpu0: <Open Firmware CPU> on cpulist0
cpufreq_dt0: <Generic cpufreq driver> on cpu0
cpu1: <Open Firmware CPU> on cpulist0
cpufreq_dt1: <Generic cpufreq driver> on cpu1
cpu2: <Open Firmware CPU> on cpulist0
cpufreq_dt2: <Generic cpufreq driver> on cpu2
cpu3: <Open Firmware CPU> on cpulist0
cpufreq_dt3: <Generic cpufreq driver> on cpu3
cpu4: <Open Firmware CPU> on cpulist0
cpufreq_dt4: <Generic cpufreq driver> on cpu4
cpu5: <Open Firmware CPU> on cpulist0
cpufreq_dt5: <Generic cpufreq driver> on cpu5
pcib0: <Rockchip PCIe controller> mem 0xf8000000-0xf9ffffff,0xfd000000-0xfdffffff irq 6,7,8 on ofwbus0
pcib0: Gen1 link training timeouted: 0x00080001.
pci0: <PCI bus> on pcib0
pcib1: <PCI-PCI bridge> at device 0.0 on pci0
pcib0: failed to reserve resource for pcib1
pcib1: failed to allocate initial memory window: 0-0xfffff
pci1: <PCI bus> on pcib1
dwc0: <Rockchip Gigabit Ethernet Controller> mem 0xfe300000-0xfe30ffff irq 9 on ofwbus0
miibus0: <MII bus> on dwc0
rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 0 on miibus0
rgephy0:  none, 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT-FDX, 1000baseT-FDX-master, auto
rgephy1: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0
rgephy1:  none, 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT-FDX, 1000baseT-FDX-master, auto
dwc0: Ethernet address: 3e:e5:c3:24:6e:90
rockchip_dwmmc0: <Synopsys DesignWare Mobile Storage Host Controller (RockChip)> mem 0xfe320000-0xfe323fff irq 11 on ofwbus0
rockchip_dwmmc0: Hardware version ID is 270a
mmc0: <MMC/SD bus> on rockchip_dwmmc0
sdhci_fdt0: <Rockchip RK3399 fdt SDHCI controller> mem 0xfe330000-0xfe33ffff irq 12 on ofwbus0
rk_emmcphy0: got emmcclk clock
sdhci_fdt0-slot0: Hardware doesn't specify timeout clock frequency, setting BROKEN_TIMEOUT quirk.
sdhci_fdt0: 1 slot(s) allocated
mmc1: <MMC/SD bus> on sdhci_fdt0
ehci0: <Generic EHCI Controller> mem 0xfe380000-0xfe39ffff irq 13 on ofwbus0
usbus0: EHCI version 1.0
usbus0 on ehci0
ohci0: <Generic OHCI Controller> mem 0xfe3a0000-0xfe3bffff irq 14 on ofwbus0
usbus1 on ohci0
ehci1: <Generic EHCI Controller> mem 0xfe3c0000-0xfe3dffff irq 15 on ofwbus0
usbus2: EHCI version 1.0
usbus2 on ehci1
ohci1: <Generic OHCI Controller> mem 0xfe3e0000-0xfe3fffff irq 16 on ofwbus0
usbus3 on ohci1
rk_dwc30: <Rockchip RK3399 DWC3> on ofwbus0
xhci0: Only host mode is supported
xhci0: Only host mode is supported
rk_dwc31: <Rockchip RK3399 DWC3> on ofwbus0
xhci0: <Synopsys Designware DWC3> mem 0xfe900000-0xfe9fffff irq 78 on rk_dwc31
xhci0: 64 bytes context size, 32-bit DMA
usbus4: trying to attach
usbus4 on xhci0
iic0: <I2C generic I/O> on iicbus0
iic1: <I2C generic I/O> on iicbus1
uart0: <16750 or compatible> mem 0xff180000-0xff1800ff irq 26 on ofwbus0
uart1: <16750 or compatible> mem 0xff1a0000-0xff1a00ff irq 28 on ofwbus0
uart1: console (115384,n,8,1)
spi0: <Rockchip SPI> mem 0xff1d0000-0xff1d0fff irq 31 on ofwbus0
spibus0: <OFW SPI bus> on spi0
spibus0: <unknown card> at cs 0 mode 0
syscon_generic0: <syscon> mem 0xffa58000-0xffa5801f on ofwbus0
syscon_generic1: <syscon> mem 0xffa5c000-0xffa5c01f on ofwbus0
syscon_generic2: <syscon> mem 0xffa60080-0xffa6009f on ofwbus0
syscon_generic3: <syscon> mem 0xffa60100-0xffa6011f on ofwbus0
syscon_generic4: <syscon> mem 0xffa60180-0xffa6019f on ofwbus0
syscon_generic5: <syscon> mem 0xffa70000-0xffa7001f on ofwbus0
syscon_generic6: <syscon> mem 0xffa70080-0xffa7009f on ofwbus0
syscon_generic7: <syscon> mem 0xffa74000-0xffa7401f on ofwbus0
syscon_generic8: <syscon> mem 0xffa76000-0xffa7601f on ofwbus0
syscon_generic9: <syscon> mem 0xffa90000-0xffa9001f on ofwbus0
syscon_generic10: <syscon> mem 0xffa98000-0xffa9801f on ofwbus0
syscon_generic11: <syscon> mem 0xffaa0000-0xffaa001f on ofwbus0
syscon_generic12: <syscon> mem 0xffaa0080-0xffaa009f on ofwbus0
syscon_generic13: <syscon> mem 0xffaa8000-0xffaa801f on ofwbus0
syscon_generic14: <syscon> mem 0xffaa8080-0xffaa809f on ofwbus0
syscon_generic15: <syscon> mem 0xffab0000-0xffab001f on ofwbus0
syscon_generic16: <syscon> mem 0xffab0080-0xffab009f on ofwbus0
syscon_generic17: <syscon> mem 0xffab8000-0xffab801f on ofwbus0
syscon_generic18: <syscon> mem 0xffac0000-0xffac001f on ofwbus0
syscon_generic19: <syscon> mem 0xffac0080-0xffac009f on ofwbus0
syscon_generic20: <syscon> mem 0xffac8000-0xffac801f on ofwbus0
syscon_generic21: <syscon> mem 0xffac8080-0xffac809f on ofwbus0
syscon_generic22: <syscon> mem 0xffad0000-0xffad001f on ofwbus0
syscon_generic23: <syscon> mem 0xffad8080-0xffad809f on ofwbus0
syscon_generic24: <syscon> mem 0xffae0000-0xffae001f on ofwbus0
iicbus2: <unknown card> at addr 0x82
iic2: <I2C generic I/O> on iicbus2
iicbus3: <unknown card> at addr 0x44
iic3: <I2C generic I/O> on iicbus3
pwm0: <Rockchip PWM> mem 0xff420000-0xff42000f on ofwbus0
pwmbus0: <OFW PWM bus> on pwm0
pwmc0: <PWM Control> channel 0 on pwmbus0
pwm1: <Rockchip PWM> mem 0xff420010-0xff42001f on ofwbus0
pwmbus1: <OFW PWM bus> on pwm1
pwmc1: <PWM Control> channel 0 on pwmbus1
pwm2: <Rockchip PWM> mem 0xff420020-0xff42002f on ofwbus0
pwmbus2: <OFW PWM bus> on pwm2
pwmc2: <PWM Control> channel 0 on pwmbus2
gpioc0: <GPIO controller> on gpio0
gpioc1: <GPIO controller> on gpio1
gpioc2: <GPIO controller> on gpio2
gpioc3: <GPIO controller> on gpio3
gpioc4: <GPIO controller> on gpio4
gpioled0: <GPIO LEDs> on ofwbus0
cryptosoft0: <software crypto>
Timecounters tick every 1.000 msec
usbus0: 480Mbps High Speed USB v2.0
usbus1: 12Mbps Full Speed USB v1.0
usbus2: 480Mbps High Speed USB v2.0
usbus3: 12Mbps Full Speed USB v1.0
usbus4: 5.0Gbps Super Speed USB v3.0
Obsolete code will be removed soon: random(9) is the obsolete Park-Miller LCG from 1988
ugen1.1: <Generic OHCI root HUB> at usbus1
uhub0 on usbus1
uhub0: <Generic OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus1
ugen2.1: <Generic EHCI root HUB> at usbus2
uhub1 on usbus2
uhub1: <Generic EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus2
ugen3.1: <Generic OHCI root HUB> at usbus3
uhub2 on usbus3
uhub2: <Generic OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus3
ugen4.1: <Synopsys XHCI root HUB> at usbus4
uhub3 on usbus4
uhub3: <Synopsys XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus4
ugen0.1: <Generic EHCI root HUB> at usbus0
uhub4 on usbus0
uhub4: <Generic EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus0
mmc0: No compatible cards found on bus
mmc1: No compatible cards found on bus
Release APs...done
CPU  0: ARM Cortex-A53 r0p4 affinity:  0  0
Trying to mount root from ufs:/dev/ufs/rootfs [rw]...
 Instruction Set Attributes 0 = <CRC32,SHA2,SHA1,AES+PMULL>
Root mount waiting for: Instruction Set Attributes 1 = <>
 usbus0         Processor Features 0 = <GIC,AdvSIMD,FP,EL3 32,EL2 32,EL1 32,EL0 32>
 usbus1         Processor Features 1 = <>
 usbus2 usbus3      Memory Model Features 0 = <TGran4,TGran64,SNSMem,BigEnd,16bit ASID,1TB PA>
 usbus4      Memory Model Features 1 = <8bit VMID>

      Memory Model Features 2 = <32bit CCIDX,48bit VA>
             Debug Features 0 = <2 CTX BKPTs,4 Watchpoints,6 Breakpoints,PMUv3,Debugv8>
             Debug Features 1 = <>
         Auxiliary Features 0 = <>
         Auxiliary Features 1 = <>
CPU  1: ARM Cortex-A53 r0p4 affinity:  0  1
      Memory Model Features 0 = <TGran4,TGran64,SNSMem,BigEnd,16bit ASID,1TB PA>
CPU  2: ARM Cortex-A53 r0p4 affinity:  0  2
      Memory Model Features 0 = <TGran4,TGran64,SNSMem,BigEnd,16bit ASID,1TB PA>
CPU  3: ARM Cortex-A53 r0p4 affinity:  0  3
      Memory Model Features 0 = <TGran4,TGran64,SNSMem,BigEnd,16bit ASID,1TB PA>
CPU  4: ARM Cortex-A72 r0p2 affinity:  1  0
      Memory Model Features 0 = <TGran4,TGran64,SNSMem,BigEnd,16bit ASID,16TB PA>
CPU  5: ARM Cortex-A72 r0p2 affinity:  1  1
      Memory Model Features 0 = <TGran4,TGran64,SNSMem,BigEnd,16bit ASID,16TB PA>
WARNING: WITNESS option enabled, expect reduced performance.
uhub0: 1 port with 1 removable, self powered
uhub2: 1 port with 1 removable, self powered
uhub3: 2 ports with 2 removable, self powered
uhub1: 1 port with 1 removable, self powered
uhub4: 1 port with 1 removable, self powered
mountroot: waiting for device /dev/ufs/rootfs...
Mounting from ufs:/dev/ufs/rootfs failed with error 19.

Loader variables:
  vfs.root.mountfrom=ufs:/dev/ufs/rootfs
  vfs.root.mountfrom.options=rw

Manual root filesystem specification:
  <fstype>:<device> [options]
      Mount <device> using filesystem <fstype>
      and with the specified (optional) option list.

    eg. ufs:/dev/da0s1a
        zfs:zroot/ROOT/default
        cd9660:/dev/cd0 ro
          (which is equivalent to: mount -t cd9660 -o ro /dev/cd0 /)

  ?               List valid disk boot devices
  .               Yield 1 second (for background tasks)
  <empty line>    Abort manual input

mountroot> random: unblocking device.

FATAL: read zero bytes from port
Skipping tty reset...
root_at_generic:~ # 
Received on Fri Feb 21 2020 - 03:54:23 UTC

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