[meta-xilinx] Cannot load VFS from SDCard partitioned using wic

[Nathan Rossi]

On 26 February 2018 at 06:34, Giordon Stark <kratsg at gmail.com> wrote:
> Hi all, I'm using a zynqmp 102 chip:
>
> I used the wic file created to flash an SD card using dd. I also copied
> system.dtb and created a BOOT.bin to copy into the first (boot) partition.
> However, the SD card seems readable, and shows the right partitions.. but I
> still cannot get the kernel to load the FS from it?
>
> Any ideas?
>
> [    6.983061] Waiting for root device /dev/mmcblk0p2...
> [    7.244076] mmc0: new high speed SDXC card at address 59b4
> [    7.249846] mmcblk0: mmc0:59b4 SD    58.9 GiB (ro)

Its mounted read only. Check the card, and the preceding log (there
might be information regarding why it was mounted read only).

> [    7.255864]  mmcblk0: p1 p2
> [    7.341815] VFS: Cannot open root device "mmcblk0p2" or
> unknown-block(179,2): error -30

Error read only. If you want to mount it read only make sure to pass
the "ro" flag in your boot args.

Regards,
Nathan

> [    7.349751] Please append a correct "root=" boot option; here are the
> available partitions:
> [    7.358115] 0100           65536 ram0 [    7.361627]  (driver?)
> [    7.363996] 0101           65536 ram1 [    7.367529]  (driver?)
> [    7.369880] 0102           65536 ram2 [    7.373446]  (driver?)
> [    7.375782] 0103           65536 ram3 [    7.379334]  (driver?)
> [    7.381697] 0104           65536 ram4 [    7.385236]  (driver?)
> [    7.387587] 0105           65536 ram5 [    7.391139]  (driver?)
> [    7.393503] 0106           65536 ram6 [    7.397041]  (driver?)
> [    7.399392] 0107           65536 ram7 [    7.402956]  (driver?)
> [    7.405295] 0108           65536 ram8 [    7.408846]  (driver?)
> [    7.411196] 0109           65536 ram9 [    7.414762]  (driver?)
> [    7.417100] 010a           65536 ram10 [    7.420738]  (driver?)
> [    7.423100] 010b           65536 ram11 [    7.426727]  (driver?)
> [    7.429078] 010c           65536 ram12 [    7.432727]  (driver?)
> [    7.435067] 010d           65536 ram13 [    7.438706]  (driver?)
> [    7.441056] 010e           65536 ram14 [    7.444706]  (driver?)
> [    7.447046] 010f           65536 ram15 [    7.450684]  (driver?)
> [    7.453051] b300        61766656 mmcblk0 [    7.456848]  driver: mmcblk
> [    7.459632]   b301           31159 mmcblk0p1 22568d5b-01[    7.464767]
> [    7.466227]   b302          161078 mmcblk0p2 22568d5b-02[    7.471344]
> [    7.472837] Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(179,2)
> [    7.481257] CPU: 3 PID: 1 Comm: swapper/0 Not tainted
> 4.9.0-xilinx-v2017.1 #1
> [    7.488364] Hardware name: xlnx,zynqmp (DT)
> [    7.492528] Call trace:
> [    7.494965] [<ffffff8008088440>] dump_backtrace+0x0/0x198
> [    7.500345] [<ffffff80080885ec>] show_stack+0x14/0x20
> [    7.505379] [<ffffff80083e7f70>] dump_stack+0x90/0xb0
> [    7.510414] [<ffffff800813461c>] panic+0x110/0x258
> [    7.515188] [<ffffff8008c210f4>] mount_block_root+0x198/0x270
> [    7.520916] [<ffffff8008c21408>] mount_root+0x11c/0x134
> [    7.526123] [<ffffff8008c21590>] prepare_namespace+0x170/0x1b8
> [    7.531939] [<ffffff8008c20d20>] kernel_init_freeable+0x1c0/0x1e0
> [    7.538016] [<ffffff800892d690>] kernel_init+0x10/0x100
> [    7.543223] [<ffffff8008082e80>] ret_from_fork+0x10/0x50
> [    7.548516] SMP: stopping secondary CPUs
> [    7.585970] Kernel Offset: disabled
> [    7.589380] Memory Limit: none
> [    7.592425] ---[ end Kernel panic - not syncing: VFS: Unable to mount
> root fs on unknown-block(179,2)
>
> --
> Giordon Stark
>
> --
> _______________________________________________
> meta-xilinx mailing list
> meta-xilinx at yoctoproject.org
> https://lists.yoctoproject.org/listinfo/meta-xilinx
>