Hi Oleg

Thanks for the guidance, it's working now. My kernel configs looked OK but a 
clean build of the uImage seems to have solved the problem.

Thanks again,
Simon

-----Oleg K Dzhimiev <[email protected]> wrote: -----
To: [email protected]
From: Oleg K Dzhimiev <[email protected]>
Date: 07/18/2016 10:22PM
Cc: "[email protected]" <[email protected]>
Subject: Re: [meta-xilinx] Booting with UBIFS RootFS

Hi,

It's most likely ubi device wasn't attached (or the ubifs "test" partition is 
missing - though you said you are able to mount it manually)

I'm on Yocto 2.0.1 + meta-xilinx layer, kernel version 4.0, board: elphel 10393 
- +zynq chip + NAND flash - I added ubifs support to it not too long ago.

So, I would check:
1. kernel .config and edit if anything is missing:

CONFIG_MTD_UBI=y
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=n
#CONFIG_UBIFS_FS_LZO=y - default
#CONFIG_UBIFS_FS_ZLIB=y - default
CONFIG_MTD_NAND_OTP=y

2. Check your old bootlog, enable debug for ubi(?) The ubi driver messages 
might be "on" by default. Here's my log:

[    1.754739] Bad block table found at page 524224, version 0x01               
                                                                                
                                                                                
                               
[    1.760957] Bad block table found at page 524160, version 0x01               
                                                                                
                                                                                
                               
[    1.767137] 5 ofpart partitions found on MTD device pl35x-nand               
                                                                                
                                                                                
                               
[    1.772879] Creating 5 MTD partitions on "pl35x-nand":                       
                                                                                
                                                                                
                               
[    1.778023] 0x000000000000-0x000000100000 : "u-boot-spl"                     
                                                                                
                                                                                
                               
[    1.784380] 0x000000100000-0x000000500000 : "u-boot"                         
                                                                                
                                                                                
                               
[    1.790292] 0x000000500000-0x000000600000 : "device-tree"                    
                                                                                
                                                                                
                                
[    1.796522] 0x000000600000-0x000001600000 : "kernel"                         
                                                                                
                                                                                
                               
[    1.802395] 0x000001600000-0x000011600000 : "rootfs"                         
                                                                                
                                                                                
                               
[    1.810320] elphel393-pwr elphel393-pwr@0: Probing elphel393-pwr             
                                                                                
                                                                                
                               
[    1.822328] elphel393-pwr elphel393-pwr@0: elphel393_pwr configuration done  
                                                                                
                                                                                
                                
[    2.569758] elphel393-mem: Allocated 76800 pages for DMA at address 
0xad00000                                                                       
                                                                                
                                         
[    2.583248] elphel393-mem: Coherent buffer vaddr:              0xCAD00000    
                                                                                
                                                                                
                                
[    2.589986] elphel393-mem: Coherent buffer paddr:              0x0AD00000    
                                                                                
                                                                                
                                
[    2.596723] elphel393-mem: Coherent buffer length:             0x12C00000    
                                                                                
                                                                                
                                
[    2.603798] elphel393-mem: Probing elphel393-mem                             
                                                                                
                                                                                
                               
[    2.631080] H2D stream buffer vaddr: � � � � � �0xEDC00000 � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.636477] H2D stream buffer paddr: � � � � � �0x2DC00000 � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.641959] H2D stream buffer length: � � � � � 0x00400000 � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.647427] D2H stream buffer vaddr: � � � � � �0xED800000 � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.652882] D2H stream buffer paddr: � � � � � �0x2D800000 � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.658363] D2H stream buffer length: � � � � � 0x00400000 � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.663819] Bidirectional stream buffer vaddr: �0xED400000 � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.669299] Bidirectional stream buffer paddr: �0x2D400000 � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.674755] Bidirectional stream buffer length: 0x00400000 � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.696821] elphel393-init: /dev/mtd4: unlocked � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �2.737305] elphel393_sensor_i2c: registered 5 i2c device classes � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �2.743716] Elphel (R) model 353 Exif device driver - 125 � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �2.749196] circbuf driver elphel393-circbuf: registered MAJOR: 135 � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �2.755856] circbuf driver elphel393-circbuf: registered MAJOR: 130 � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �2.762068] circbuf driver elphel393-circbuf: using 314572800 bytes of DMA 
memory from pElphel_buf at address 0x0ad00000 � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � 
[ � �2.773908] CAN device driver interface � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �2.779331] libphy: XEMACPS mii bus: probed � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �2.791335] xemacps e000b000.ps7-ethernet: pdev->id -1, baseaddr 0xe000b000, 
irq 31 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �2.799540] usbcore: registered new interface driver rtl8192cu � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.805506] TCP: cubic registered � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �2.808769] NET: Registered protocol family 17 � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.813177] can: controller area network core (rev 20120528 abi 9) � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.819419] NET: Registered protocol family 29 � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.823784] can: raw protocol (rev 20120528) � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.828054] can: broadcast manager protocol (rev 20120528 t) � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.833682] can: netlink gateway (rev 20130117) max_hops=1 � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.839440] zynq_pm_remap_ocm: no compatible node found for 
'xlnx,zynq-ocmc-1.0' � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � �
[ � �2.846750] zynq_pm_suspend_init: Unable to map OCM. � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �2.851745] Registering SWP/SWPB emulation handler � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
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� � � � � � � � � � � � � � � �
[ � �2.858108] ubi0: attaching mtd4 � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
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� � � � � � � � � � � � � � � �
[ � �3.785262] ubi0: scanning is finished � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
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� � � � � � � � � � � � � � � �
[ � �3.797826] ubi0: attached mtd4 (name "rootfs", size 256 MiB) � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �3.803489] ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �3.810367] ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048 � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
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� � � � � � � � � � � � � � � � �
[ � �3.817136] ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �3.824059] ubi0: good PEBs: 2048, bad PEBs: 0, corrupted PEBs: 0 � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �3.830150] ubi0: user volume: 1, internal volumes: 1, max. volumes count: 
128 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �3.837354] ubi0: max/mean erase counter: 1/0, WL threshold: 4096, image 
sequence number: 1485386555 � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � �
[ � �3.846454] ubi0: available PEBs: 0, total reserved PEBs: 2048, PEBs 
reserved for bad PEB handling: 160 � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � �
[ � �3.855856] ubi0: background thread "ubi_bgt0d" started, PID 1134 � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �7.937813] xemacps e000b000.ps7-ethernet: Set clk to 124999999 Hz � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �7.943914] xemacps e000b000.ps7-ethernet: link up (1000/FULL) � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �7.976841] IP-Config: Guessing netmask 255.255.255.0 � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �7.981939] IP-Config: Complete: � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � �
[ � �7.985092] � � �device=eth0, hwaddr=00:0e:64:10:c9:fe, ipaddr=192.168.0.8, 
mask=255.255.255.0, gw=255.255.255.255 � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �7.995448] � � �host=192.168.0.8, domain=, nis-domain=(none) � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
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� � � � � � � � � � � � � � � � �
[ � �8.001164] � � �bootserver=255.255.255.255, rootserver=255.255.255.255, 
rootpath= � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � �
[ � �8.011869] Freeing unused kernel memory: 2392K (c077e000 - c09d4000) � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �8.059760] udevd[1146]: starting version 182 � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
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� � � � � � � � � � � � � � � � �
[ � �8.366871] UBIFS: background thread "ubifs_bgt0_0" started, PID 1942 � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �8.594648] UBIFS: recovery needed � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
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� � � � � � � � � � � � � � � �
[ � �8.803164] UBIFS: recovery completed � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
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� � � � � � � � � � � � � � � � �
[ � �8.806907] UBIFS: mounted UBI device 0, volume 0, name "elphel393-rootfs" � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
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� � � � � � � � � � � � � � � �
[ � �8.813712] UBIFS: LEB size: 126976 bytes (124 KiB), min./max. I/O unit 
sizes: 2048 bytes/2048 bytes � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � �
[ � �8.831336] UBIFS: FS size: 237826048 bytes (226 MiB, 1873 LEBs), journal 
size 9023488 bytes (8 MiB, 72 LEBs) � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � �
[ � �8.843058] UBIFS: reserved for root: 0 bytes (0 KiB) � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
� � � � � � � � � � � � � � � � �
[ � �8.848173] UBIFS: media format: w4/r0 (latest is w4/r0), UUID 
27160437-591E-4CC9-8BBC-7BD7896ACAD9, small LPT model

3. Posting my device tree bootargs just in case:
bootargs = "cma=336M console=ttyPS0,115200 root=ubi0:elphel393-rootfs rw 
ip=192.168.0.8 earlyprintk rootwait rootfstype=ubifs ubi.mtd=4,2048";

Best regards,
Oleg Dzhimiev
Electronics Engineer
phone: +1 801 783 5555 x124
Elphel, Inc.

On 18 July 2016 at 13:10, <[email protected]> wrote:
Hi

I'm trying to boot a Zedboard using a 'core-image-minimal' filesystem in flash 
using Yocto 2.1.

Using JFFS2, the kernel boots and mounts the filesystem with no issues.

Using UBIFS, the kernel boots but the mount fails with the error shown below. I 
can, however, mount the same filesystem directly with no issues from the 
command line. It is only when trying to do this at boot-time that I see 
problems.

In both cases I added an additional MTD partition to use for testing after the 
4 defined in the original DTB. The fact that the JFFS2 filesystem works in this 
test partition suggests it is OK.

UBIFS worked for me on a previous version (1.7.1) although I had to disable 
compression in the UBIFS image file.

All the logs and information are below. I'd be grateful to know if anyone else 
has managed to boot a system using UBIFS with this version of the meta-xilinx 
kernel etc. or if anyone has any ideas what could be going wrong?

Thanks in advance
Simon Goda


kernel version:
4.4.0-xilinx

kernel boot params:
console=ttyPS0,115200 rootfstype=ubifs ubi.mtd=5 root=ubi0:test rw rootwait 
earlyprintk

MTD partitions:
dev: � �size � erasesize �name
mtd0: 00100000 00010000 "qspi-fsbl-uboot"
mtd1: 00500000 00010000 "qspi-linux"
mtd2: 00020000 00010000 "qspi-device-tree"
mtd3: 005e0000 00010000 "qspi-rootfs"
mtd4: 00400000 00010000 "qspi-bitstream"
mtd5: 01000000 00010000 "qspi-test"


Error from serial:
[ � �1.299518] VFS: Cannot open root device "ubi0:test" or unknown-block(0,0): 
error -19
[ � �1.307335] Please append a correct "root=" boot option; here are the 
available partitions:
[ � �1.315669] 0100 � � � � � 32768 ram0 �(driver?)
[ � �1.320223] 0101 � � � � � 32768 ram1�
[ � �1.320236] mmc0: new high speed SDHC card at address e624
[ � �1.329272] �(driver?)
[ � �1.330804] mmcblk0: mmc0:e624 SS08G 7.40 GiB
[ � �1.336256] 0102 � � � � � 32768 ram2�
[ � �1.336298] �mmcblk0: p1 p2
[ � �1.342519] �(driver?)
[ � �1.345075] 0103 � � � � � 32768 ram3 �(driver?)
[ � �1.349649] 1f00 � � � � � �1024 mtdblock0 �(driver?)
[ � �1.354676] 1f01 � � � � � �5120 mtdblock1 �(driver?)
[ � �1.359712] 1f02 � � � � � � 128 mtdblock2 �(driver?)
[ � �1.364764] 1f03 � � � � � �6016 mtdblock3 �(driver?)
[ � �1.369780] 1f04 � � � � � �4096 mtdblock4 �(driver?)
[ � �1.374832] 1f05 � � � � � 16384 mtdblock5 �(driver?)
[ � �1.379847] b300 � � � � 7761920 mmcblk0 �driver: mmcblk
[ � �1.385167] � b301 � � � � � 16384 mmcblk0p1 4975795e-01
[ � �1.390437] � b302 � � � � 2306054 mmcblk0p2 4975795e-02
[ � �1.395732] Kernel panic - not syncing: VFS: Unable to mount root fs on 
unknown-block(0,0)
[ � �1.403979] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.0-xilinx #1
[ � �1.410396] Hardware name: Xilinx Zynq Platform
[ � �1.414943] [<c001663c>] (unwind_backtrace) from [<c0013018>] 
(show_stack+0x10/0x14)
[ � �1.422649] [<c0013018>] (show_stack) from [<c020f724>] 
(dump_stack+0x88/0xc8)
[ � �1.429850] [<c020f724>] (dump_stack) from [<c00aa3a8>] (panic+0xa0/0x204)
[ � �1.436715] [<c00aa3a8>] (panic) from [<c0647234>] 
(mount_block_root+0x194/0x230)
[ � �1.444174] [<c0647234>] (mount_block_root) from [<c0647588>] 
(prepare_namespace+0xa8/0x1d8)
[ � �1.452592] [<c0647588>] (prepare_namespace) from [<c0646e70>] 
(kernel_init_freeable+0x1e4/0x1f4)
[ � �1.461448] [<c0646e70>] (kernel_init_freeable) from [<c049814c>] 
(kernel_init+0x8/0xe8)
[ � �1.469518] [<c049814c>] (kernel_init) from [<c000f678>] 
(ret_from_fork+0x14/0x3c)
[ � �1.477064] CPU1: stopping
[ � �1.479755] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.0-xilinx #1
[ � �1.486173] Hardware name: Xilinx Zynq Platform
[ � �1.490705] [<c001663c>] (unwind_backtrace) from [<c0013018>] 
(show_stack+0x10/0x14)
[ � �1.498423] [<c0013018>] (show_stack) from [<c020f724>] 
(dump_stack+0x88/0xc8)
[ � �1.505625] [<c020f724>] (dump_stack) from [<c0014d90>] 
(ipi_cpu_stop+0x58/0x68)
[ � �1.513002] [<c0014d90>] (ipi_cpu_stop) from [<c00154f8>] 
(handle_IPI+0x88/0xb0)
[ � �1.520380] [<c00154f8>] (handle_IPI) from [<c000946c>] 
(gic_handle_irq+0x84/0x88)
[ � �1.527931] [<c000946c>] (gic_handle_irq) from [<c0013ad4>] 
(__irq_svc+0x54/0x90)
[ � �1.535390] Exception stack(0xdf469f60 to 0xdf469fa8)
[ � �1.540432] 9f60: 00000001 c05a24b0 00000001 1f561000 dfbe5618 00000000 
57c1d5b2 00000000
[ � �1.548591] 9f80: 579e983a 00000000 00000000 c06884fc 00000018 df469fb0 
c005a2fc c0356748
[ � �1.556743] 9fa0: 20000013 ffffffff
[ � �1.560232] [<c0013ad4>] (__irq_svc) from [<c0356748>] 
(cpuidle_enter_state+0x17c/0x2b4)
[ � �1.568304] [<c0356748>] (cpuidle_enter_state) from [<c005a5b8>] 
(cpu_startup_entry+0x190/0x274)
[ � �1.577061] [<c005a5b8>] (cpu_startup_entry) from [<0000950c>] (0x950c)
[ � �1.583658] ---[ end Kernel panic - not syncing: VFS: Unable to mount root 
fs on unknown-block(0,0)

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