TI中文支持网Linux version 4.4.41-gf9f6f0db2d (gc@gc-virtual-machine) (gcc version 5.3.1 20160113 (Linaro GCC 5.3-2016.02) ) #15 SMP PREEMPT Wed Sep 13 10:21:59 CST 2017
[ 67.325144] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xdc
[ 67.331525] nand: Micron MT29F4G08ABAEAWP
[ 67.335572] nand: 512 MiB, SLC, erase size: 256 KiB, page size: 4096, OOB size: 224
[ 67.343326] using OMAP_ECC_BCH16_CODE_HW ECC scheme
[ 67.348312] 10 ofpart partitions found on MTD device 8000000.nand
[ 67.354447] Creating 10 MTD partitions on "8000000.nand":
[ 67.359872] 0x000000000000-0x000000040000 : "NAND.SPL"
[ 67.376119] 0x000000040000-0x000000080000 : "NAND.SPL.backup1"
[ 67.383018] 0x000000080000-0x0000000c0000 : "NAND.SPL.backup2"
[ 67.389854] 0x0000000c0000-0x000000100000 : "NAND.SPL.backup3"
[ 67.406684] 0x000000100000-0x000000180000 : "NAND.u-boot-spl-os"
[ 67.413748] 0x000000180000-0x000000380000 : "NAND.u-boot"
[ 67.420486] 0x000000380000-0x0000003c0000 : "NAND.u-boot-env"
[ 67.437270] 0x0000003c0000-0x000000400000 : "NAND.u-boot-env.backup1"
[ 67.454754] 0x000000400000-0x000000c00000 : "NAND.kernel"
[ 67.462791] 0x000000c00000-0x000020000000 : "NAND.file-system"
[ 67.772577] yaffs: dev is 32505865 name is "mtdblock9" rw
[ 67.773097] omap_hsmmc 480b4000.mmc: no pinctrl state for sdr25 mode
[ 67.773102] omap_hsmmc 480b4000.mmc: no pinctrl state for sdr12 mode
[ 67.790917] yaffs: passed flags ""
[ 69.670585] VFS: Mounted root (yaffs2 filesystem) on device 31:9.
[ 69.676737] devtmpfs: error mounting -2
[ 69.680787] Freeing unused kernel memory: 336K (c08f8000 – c094c000)
[ 69.687225] This architecture does not have kernel memory protection.
[ 69.693729] Kernel panic – not syncing: Requested init/lnuxrc failed (error -2).
ce guo：
我的根文件系统应该是没有问题，用这个fs制作成ramdisk格式的内核可以直接挂载上，
可是使用mkyaffs2image工具制作的yaffs2就出现上述问题，
ce guo：
回复 Denny%20Yang99373:
/ # / # / # mount /dev/root on / type ext4 (rw,relatime,block_validity,delalloc,barrier,user_xattr,acl,errors=remount-ro)devtmpfs on /dev type devtmpfs (rw,relatime,size=837924k,nr_inodes=98195,mode=755)proc on /proc type proc (rw,relatime)tmpfs on /tmp type tmpfs (rw,relatime)sysfs on /sys type sysfs (rw,relatime)devpts on /dev/pts type devpts (rw,relatime,mode=600,ptmxmode=000)/ # mount -t yaffs2 /dev/mtdblock9 /mnt [ 377.887818] yaffs: dev is 32505865 name is "mtdblock9" rw[ 377.893242] yaffs: passed flags ""/ # mount /dev/root on / type ext4 (rw,relatime,block_validity,delalloc,barrier,user_xattr,acl,errors=remount-ro)devtmpfs on /dev type devtmpfs (rw,relatime,size=837924k,nr_inodes=98195,mode=755)proc on /proc type proc (rw,relatime)tmpfs on /tmp type tmpfs (rw,relatime)sysfs on /sys type sysfs (rw,relatime)devpts on /dev/pts type devpts (rw,relatime,mode=600,ptmxmode=000)/dev/mtdblock9 on /mnt type yaffs2 (rw,relatime)/ # / # cd mnt//mnt # ls lost+found
通过ramdisk启动之后进入根文件系统，之后通过mount -t yaffs2 /dev/mtdblock9 /mnt命令挂载yaffs2到/mnt，进入/mnt目录，可是ls只看到lost+found目录
这是不是yaffs2格式的文件系统制作有问题呢
Denny%20Yang99373：
回复 ce guo:
做的文件系统里没有放文件？
如果放了，那就是没做好
ce guo：
回复 Denny%20Yang99373:
感谢回复
文件系统是有放文件的，文件系统的必须文件是都有的。
因为内核没有对yaffs2文件系统的支持，所以后来使用了ubifs，已经成功挂载了
参考：
http://www.deyisupport.com/question_answer/dsp_arm/sitara_arm/f/25/t/59921.aspx?pi239031348=1
