@ztcontrol

[    2.287564] VFS: Cannot open root device "mtdblock5" or unknown-block(0,0): error -6
[    2.296326] Please append a correct "root=" boot option; here are the available partitions:
[    2.305707] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

找不到分区，所以挂不上文件系统分区

多谢, 我后来研究出来了. flash型号没识别

[    2.287564] VFS: Cannot open root device "mtdblock5" or unknown-block(0,0): error -6
[    2.296326] Please append a correct "root=" boot option; here are the available partitions:
[    2.305707] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

找不到分区，所以挂不上文件系统分区

@ztcontrol 您好，您可以参考FAQ解决：https://d1s.docs.aw-ol.com/faq/

大佬能再问个问题么
我换了一个32MB的norflash, W25Q256JWEIQ
编译下载都能成功. 但是内核启动panic了.

[    2.173512] sun8iw20-pinctrl 2000000.pinctrl: 2000000.pinctrl supply vcc-pb not found, using dummy regulator
[    2.188045] get ehci0-controller wakeup-source is fail.
[    2.194049] sunxi ehci0-controller don't init wakeup source
[    2.200300] [sunxi-ehci0]: probe, pdev->name: 4101000.ehci0-controller, sunxi_ehci: 0xffffffe0006a51d8, 0x:ffffffd0040fb000, irq_no:2e
[    2.213808] [sunxi-ehci0]: Not init ehci0
[    2.218877] get ohci0-controller wakeup-source is fail.
[    2.224887] sunxi ohci0-controller don't init wakeup source
[    2.231101] [sunxi-ohci0]: probe, pdev->name: 4101400.ohci0-controller, sunxi_ohci: 0xffffffe0006a55a0
[    2.241563] [sunxi-ohci0]: Not init ohci0
[    2.250469] clk: Not disabling unused clocks
[    2.256574] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[    2.266288] ALSA device list:
[    2.269595]   #0: audiocodec
[    2.272874] cfg80211: failed to load regulatory.db
[    2.278316] alloc_fd: slot 0 not NULL!
[    2.282981] /dev/root: Can't open blockdev
[    2.287564] VFS: Cannot open root device "mtdblock5" or unknown-block(0,0): error -6
[    2.296326] Please append a correct "root=" boot option; here are the available partitions:
[    2.305707] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    2.314920] CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.61 #46
[    2.321410] Call Trace:
[    2.324147] [<ffffffe00002612c>] walk_stackframe+0x0/0x98
[    2.330161] [<ffffffe0000262e4>] show_stack+0x2a/0x34
[    2.335796] [<ffffffe00044e9c6>] dump_stack+0x20/0x28
[    2.341422] [<ffffffe00002a7a4>] panic+0xec/0x272
[    2.346660] [<ffffffe000000ef6>] mount_block_root+0x214/0x27a
[    2.353056] [<ffffffe000000fe2>] mount_root+0x86/0x90
[    2.358680] [<ffffffe000001134>] prepare_namespace+0x148/0x152
[    2.365175] [<ffffffe000000b58>] kernel_init_freeable+0x166/0x198
[    2.371963] [<ffffffe00045f594>] kernel_init+0x12/0xee
[    2.377684] [<ffffffe000024e98>] ret_from_exception+0x0/0xc
[    2.383894] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]---