从fireflyimg导出的rootfs，重新制作成img烧录进开发板，没问题，可正常登录，但是用nfs挂载启动这个rootfs出现好几个问题。看起来好像是没有写权限。有没有小伙伴成功挂载firefly
img的rootfs，请指教一下，以下是nfs系统启动的打印
［ 8.432458］ No soundcards found.
［ 8.449632］ VFS： Mounted root （nfs filesystem） on device 0:16.
［ 8.456334］ devtmpfs： mounted
［ 8.460005］ Freeing unused kernel memory： 1024K
［ 11.709698］ systemd［1］： System time before build time， advancing
clock.
［ 11.858200］ systemd［1］： Failed to insert module ‘autofs4’： No such file or
directory
［ 11.887742］ cgroup： cgroup2： unknown option “nsdelegate”
［ 11.945239］ systemd［1］： systemd 237 running in system mode. （+PAM +AUDIT
+SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS
+ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2
default-hierarchy=hybrid）
［ 11.968031］ systemd［1］： Detected architecture arm.
Welcome to Ubuntu 18.04.4 LTS！
［ 11.990230］ systemd［1］： Set hostname to 《firefly》。
［ 13.061493］ systemd［1］： File /lib/systemd/system/systemd-udevd.service:35
configures an IP firewall （IPAddressDeny=any）， but the local system does not
support BPF/cgroup based firewalling.
［ 13.079353］ systemd［1］： Proceeding WITHOUT firewalling in effect！ （This
warning is only shown for the first loaded unit using IP firewalling.）
［ 14.608896］ systemd［1］： /lib/systemd/system/serial-getty@.service:14：
Failed to add dependency on dev-ttyFIQ0， ignoring： Invalid argument
［ 14.799315］ systemd［1］： Reached target Swap.
［ OK ］ Reached target Swap.
［ 14.807458］ systemd［1］： Created slice User and Session Slice.
［ OK ］ Created slice User and Session Slice.
［ 14.815081］ systemd［1］： Reached target User and Group Name Lookups.
［ OK ］ Reached target User and Group Name Lookups.
［ 14.827286］ systemd［1］： Started Forward Password Requests to Wall
Directory Watch.
［ OK ］ Started Forward Password Requests to Wall Directory Watch.
［ 14.842088］ systemd［1］： Created slice System Slice.
［ OK ］ Created slice System Slice.
［ 14.853723］ systemd［1］： Listening on Journal Socket （/dev/log）。
［ OK ］ Listening on Journal Socket （/dev/log）。
［ 14.864120］ systemd［1］： Listening on udev Control Socket.
［ OK ］ Listening on udev Control Socket.
［ 14.873621］ systemd［1］： Listening on Syslog Socket.
［ OK ］ Listening on Syslog Socket.
［ 14.884586］ systemd［1］： Listening on /dev/initctl Compatibility Named
Pipe.
［ OK ］ Listening on /dev/initctl Compatibility Named Pipe.
［ 14.895179］ systemd［1］： Reached target Slices.
［ OK ］ Reached target Slices.
［ 14.905735］ systemd［1］： Listening on Journal Socket.
［ OK ］ Listening on Journal Socket.
［ 14.916173］ systemd［1］： Mounting Kernel Debug File System.。.
Mounting Kernel Debug File System.。.
［ 14.935593］ systemd［1］： Starting Create Static Device Nodes in /dev.。.
Starting Create Static Device Nodes in /dev.。.
［ 14.944100］ systemd［1］： Starting Remount Root and Kernel File
Systems.。.
Starting Remount Root and Kernel File Systems.。.
［ 14.963704］ systemd［1］： Starting Load Kernel Modules.。.
Starting Load Kernel Modules.。.
［ 14.974116］ systemd［1］： Starting Set the console keyboard layout.。.
Starting Set the console keyboard layout.。.
［ 15.064945］ systemd［1］： Starting Journal Service.。.
Starting Journal Service.。.
［ 15.070258］ systemd［1］： Listening on udev Kernel Socket.
［ OK ］ Listening on udev Kernel Socket.
［ 15.079534］ systemd［1］： Created slice system-serial\x2dgetty.slice.
［ OK ］ Created slice system-serial\x2dgetty.slice.
［ 15.090347］ systemd［1］： Reached target Remote File Systems.
［ OK ］ Reached target Remote File Systems.
［ 15.103457］ systemd［1］： Starting udev Coldplug all Devices.。.
Starting udev Coldplug all Devices.。.
［ 15.114014］ systemd［1］： Mounted Kernel Debug File System.
［ OK ］ Mounted Kernel Debug File System.
［ 15.123047］ systemd［1］： Started Remount Root and Kernel File Systems.
［ OK ］ Started Remount Root and Kernel File Systems.
［ 15.174173］ systemd［1］： Started Load Kernel Modules.
［ OK ］ Started Load Kernel Modules.
［ 15.182303］ systemd［1］： Mounting FUSE Control File System.。.
Mounting FUSE Control File System.。.
［ 15.191972］ systemd［1］： Starting Apply Kernel Variables.。.
Starting Apply Kernel Variables.。.
［ 15.202036］ systemd［1］： Mounting Kernel Configuration File System.。.
Mounting Kernel Configuration File System.。.
［ 15.225723］ systemd［1］： Starting Load/Save Random Seed.。.
Starting Load/Save Random Seed.。.
［ 15.232896］ systemd［1］： Mounted FUSE Control File System.
［ OK ］ Mounted FUSE Control File System.
［ 15.247350］ systemd［1］： Mounted Kernel Configuration File System.
［ OK ］ Mounted Kernel Configuration File System.
［ 15.261641］ systemd［1］： Started Create Static Device Nodes in /dev.
［ OK ］ Started Create Static Device Nodes in /dev.
［ 15.271217］ systemd［1］： Starting udev Kernel Device Manager.。.
Starting udev Kernel Device Manager.。.
［ 15.301291］ systemd［1］： Failed to start Load/Save Random Seed.
［FAILED］ Failed to start Load/Save Random Seed.
See ‘systemctl status systemd-random-seed.service’ for details.
［ OK ］ Started Apply Kernel Variables.
［ OK ］ Started Journal Service.
Starting Flush Journal to Persistent Storage.。.
［ OK ］ Started udev Coldplug all Devices.
［ OK ］ Started Flush Journal to Persistent Storage.
［ OK ］ Started Set the console keyboard layout.
［ OK ］ Reached target Local File Systems （Pre）。
［ OK ］ Reached target Local File Systems.
Starting Set console font and keymap.。.
Starting Tell Plymouth To Write Out Runtime Data.。.
Starting Create Volatile Files and Directories.。.
［ OK ］ Started Tell Plymouth To Write Out Runtime Data.
［ OK ］ Started Set console font and keymap.
［ OK ］ Started udev Kernel Device Manager.
［ OK ］ Started Dispatch Password Requests to Console Directory Watch.
［ OK ］ Reached target Local Encrypted Volumes.
［FAILED］ Failed to start Create Volatile Files and Directories.
See ‘systemctl status systemd-tmpfiles-setup.service’ for details.
［ OK ］ Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.
Starting Network Name Resolution.。.
Starting Network Time Synchronization.。.
Starting Update UTMP about System Boot/Shutdown.。.
［ OK ］ Created slice system-systemd\x2dbacklight.slice.
Starting Load/Save Screen Backlight…ightness of backlight:backlight.。.
［FAILED］ Failed to start Network Time Synchronization.
See ‘systemctl status systemd-timesyncd.service’ for details.
［FAILED］ Failed to start Load/Save Screen Ba…Brightness of
backlight:backlight.
See ‘systemctl status systemd-backlight…cklight:backlight.service’ for
details.
［ OK ］ Stopped Network Time Synchronization.
Starting Network Time Synchronization.。.
Starting Load/Save RF Kill Switch Status.。.
［FAILED］ Failed to start Network Time Synchronization.
See ‘systemctl status systemd-timesyncd.service’ for details.
［FAILED］ Failed to start Load/Save RF Kill Switch Status.
See ‘systemctl status systemd-rfkill.service’ for details.
Starting Load/Save RF Kill Switch Status.。.
［ OK ］ Stopped Network Time Synchronization.
Starting Network Time Synchronization.。.
［FAILED］ Failed to start Load/Save RF Kill Switch Status.
See ‘systemctl status systemd-rfkill.service’ for details.
［FAILED］ Failed to start Network Time Synchronization.
See ‘systemctl status systemd-timesyncd.service’ for details.
［ OK ］ Stopped Network Time Synchronization.
Starting Network Time Synchronization.。.
Starting Load/Save RF Kill Switch Status.。.
［FAILED］ Failed to start Network Time Synchronization.
See ‘systemctl status systemd-timesyncd.service’ for details.
［FAILED］ Failed to start Load/Save RF Kill Switch Status.
See ‘systemctl status systemd-rfkill.service’ for details.
Starting Load/Save RF Kill Switch Status.。.
［ OK ］ Stopped Network Time Synchronization.
Starting Network Time Synchronization.。.
［FAILED］ Failed to start Load/Save RF Kill Switch Status.
See ‘systemctl status systemd-rfkill.service’ for details.
［FAILED］ Failed to start Network Time Synchronization.
See ‘systemctl status systemd-timesyncd.service’ for details.
［ OK ］ Stopped Network Time Synchronization.
［FAILED］ Failed to start Network Time Synchronization.
See ‘systemctl status systemd-timesyncd.service’ for details.
Starting Load/Save RF Kill Switch Status.。.
［ OK ］ Reached target System Time Synchronized.
［FAILED］ Failed to start Load/Save RF Kill Switch Status.
See ‘systemctl status systemd-rfkill.service’ for details.
［FAILED］ Failed to start Load/Save RF Kill Switch Status.
See ‘systemctl status systemd-rfkill.service’ for details.
［FAILED］ Failed to start Update UTMP about System Boot/Shutdown.
See ‘systemctl status systemd-update-utmp.service’ for details.
［DEPEND］ Dependency failed for Update UTMP about System Runlevel
Changes.
［ OK ］ Reached target System Initialization.
［ OK ］ Listening on D-Bus System Message Bus Socket.
［ OK ］ Started Daily Cleanup of Temporary Directories.
［ OK ］ Started Discard unused blocks once a week.
［ OK ］ Listening on Avahi mDNS/DNS-SD Stack Activation Socket.
［ OK ］ Reached target Sockets.
［ OK ］ Started Daily apt download activities.
［ OK ］ Started Daily apt upgrade and clean activities.
［ OK ］ Reached target Timers.
［ OK ］ Reached target Paths.
［ OK ］ Reached target Basic System.
Starting System Logging Service.。.
Starting Login Service.。.
Starting Avahi mDNS/DNS-SD Stack.。.
Starting Accounts Service.。.
Starting rkisp 3A engine.。.
［ OK ］ Started Set the CPU Frequency Scaling governor.
［ OK ］ Started D-Bus System Message Bus.
Starting WPA supplicant.。.
Starting Modem Manager.。.
Starting Restore /etc/resolv.conf i…fore the ppp link was shut down.。.
［ OK ］ Started Regular background program processing daemon.
Starting LSB： automatic crash report generation.。.
Starting Dispatcher daemon for systemd-networkd.。.
Starting Adbd for linux.。.
Starting Disk Manager.。.
Starting Network Manager.。.
［ OK ］ Started Network Name Resolution.
［ OK ］ Started System Logging Service.
［ OK ］ Started Login Service.
［ OK ］ Started Avahi mDNS/DNS-SD Stack.
［ OK ］ Reached target Host and Network Name Lookups.
［ OK ］ Started WPA supplicant.
［ OK ］ Started Restore /etc/resolv.conf if…before the ppp link was shut
down.
［ 19.633587］ stmmac_hw_setup： DMA engine initialization failed
［ 19.639358］ stmmac_open： Hw setup failed
［ OK ］ Started rkisp 3A engine.
Starting Authorization Manager.。.
［ OK ］ Started LSB： automatic crash report generation.
［ OK ］ Started Authorization Manager.
［ OK ］ Started Accounts Service.
［ OK ］ Started Modem Manager.
Starting Hostname Service.。.
［ OK ］ Started Disk Manager.
［ OK ］ Started Hostname Service.
Starting Network Manager Script Dispatcher Service.。.
［ OK ］ Started Network Manager Script Dispatcher Service.
［ OK ］ Started Adbd for linux.
［ 22.090615］ stmmac_hw_setup： DMA engine initialization failed
［ 22.096381］ stmmac_open： Hw setup failed
［ OK ］ Started Dispatcher daemon for systemd-networkd.
［ 22.505848］ stmmac_hw_setup： DMA engine initialization failed
［ 22.511620］ stmmac_open： Hw setup failed
［ 22.649995］ stmmac_hw_setup： DMA engine initialization failed
［ 22.655745］ stmmac_open： Hw setup failed
［ OK ］ Started Network Manager.
［ OK ］ Reached target Network.
Starting Permit User Sessions.。.
Starting OpenBSD Secure Shell server.。.
Starting /etc/rc.local Compatibility.。.
［ OK ］ Started /etc/rc.local Compatibility.
［ OK ］ Started Permit User Sessions.
Starting Hold until boot process finishes up.。.
Starting Light Display Manager.。.
［ OK ］ Started Hold until boot process finishes up.
Starting Set console scheme.。.
［ OK ］ Started Serial Getty on ttyFIQ0.
［ 22.775197］ stmmac_hw_setup： DMA engine initialization failed
［ 22.786387］ stmmac_open： Hw setup failed
［ OK ］ Started Set console scheme.
［ OK ］ Created slice system-getty.slice.
［ 22.907022］ stmmac_hw_setup： DMA engine initialization failed
［ 22.916437］ stmmac_open： Hw setup failed
［ OK ］ Started Getty on tty1.
［ OK ］ Reached target Login Prompts.
［ OK ］ Started OpenBSD Secure Shell server.
［ OK ］ Reached target Multi-User System.
Ubuntu 18.04.4 LTS firefly ttyFIQ0
firefly login： root （automatic login）
Authentication failure
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