linux下用nfs挂载根文件系统出错VFS: Unable to mount root fs via NFS, trying floppy. VFS: Cannot open root device "

mahai

问题截图


已经设置的

mahai

mmc1: new high speed MMC card at address 0001
ALSA device list:
  No soundcards found.
mmcblk1: mmc1:0001 8GTF4R 7.28 GiB
mmcblk1boot0: mmc1:0001 8GTF4R partition 1 4.00 MiB
mmcblk1boot1: mmc1:0001 8GTF4R partition 2 4.00 MiB
mmcblk1rpmb: mmc1:0001 8GTF4R partition 3 512 KiB, chardev (245:0)
mmcblk1: p1
usb 1-1: new high-speed USB device number 2 using ci_hdrc
hub 1-1:1.0: USB hub found
hub 1-1:1.0: 4 ports detected
IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
random: fast init done
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
Please append a correct "root=" boot option; here are the available partitions:
0100           16384 ram0
(driver?)
0101           16384 ram1
(driver?)
0102           16384 ram2
(driver?)
0103           16384 ram3
(driver?)
0104           16384 ram4
(driver?)
0105           16384 ram5
(driver?)
0106           16384 ram6
(driver?)
0107           16384 ram7
(driver?)
0108           16384 ram8
(driver?)
0109           16384 ram9
(driver?)
010a           16384 ram10
(driver?)
010b           16384 ram11
(driver?)
010c           16384 ram12
(driver?)
010d           16384 ram13
(driver?)
010e           16384 ram14
(driver?)
010f           16384 ram15
(driver?)
1f00            1024 mtdblock0
(driver?)
1f01             128 mtdblock1
(driver?)
1f02            4096 mtdblock2
(driver?)
1f03             128 mtdblock3
(driver?)
1f04            5120 mtdblock4
(driver?)
1f05           22272 mtdblock5
(driver?)
b300        30701568 mmcblk0
driver: mmcblk
  b301          512000 mmcblk0p1 0064c83c-01

  b302        30188544 mmcblk0p2 0064c83c-02

b308         7634944 mmcblk1
driver: mmcblk
  b309         7634938 mmcblk1p1 00000000-01

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
CPU0: stopping
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-xilinx-v2020.2 #1
Hardware name: Xilinx Zynq Platform
[<c010e37c>] (unwind_backtrace) from [<c010a124>] (show_stack+0x10/0x14)
[<c010a124>] (show_stack) from [<c06a24e8>] (dump_stack+0xb4/0xd0)
[<c06a24e8>] (dump_stack) from [<c010c964>] (ipi_cpu_stop+0x3c/0x98)
[<c010c964>] (ipi_cpu_stop) from [<c010d1b0>] (handle_IPI+0x64/0x80)
[<c010d1b0>] (handle_IPI) from [<c033ec44>] (gic_handle_irq+0x84/0x90)
[<c033ec44>] (gic_handle_irq) from [<c0101a8c>] (__irq_svc+0x6c/0xa8)
Exception stack(0xc0b01ee0 to 0xc0b01f28)
1ee0: 00000000 00000016 2ec91000 ef6d0180 c0b2d5ac 00000000 ef6cf578 00000000
1f00: cb726e85 cb89ae38 00000016 00000016 fffffff5 c0b01f30 c052bcac c052bcd0
1f20: 60000013 ffffffff
[<c0101a8c>] (__irq_svc) from [<c052bcd0>] (cpuidle_enter_state+0xec/0x288)
[<c052bcd0>] (cpuidle_enter_state) from [<c052bea8>] (cpuidle_enter+0x28/0x38)
[<c052bea8>] (cpuidle_enter) from [<c01400ec>] (do_idle+0x230/0x258)
[<c01400ec>] (do_idle) from [<c0140278>] (cpu_startup_entry+0x18/0x1c)
[<c0140278>] (cpu_startup_entry) from [<c0a00cb8>] (start_kernel+0x3a0/0x440)
[<c0a00cb8>] (start_kernel) from [<00000000>] (0x0)
---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) ]---

长河饮马

首先在petalinux配置界面的“Image Packaging Configuration”菜单下指定根文件系统的类型，然后再指定系统启动时去那个路径查找根文件系统，最后别忘了在system-user.dtsi中添加include/ "system-conf.dtsi"头文件。