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注册时间2016-10-20
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我拿到的imx6ul nand flash板子在通过命令fdisk -l查看flash信息的时候有异常,我的问题和log如下:root@freescale ~$ fdisk -l
[ 116.553902] end_request: I/O error, dev mtdblock0, sector 0 --------------------为什么这里有IO错误,block0的信息没法显示,是flash坏了么
[ 116.559562] Buffer I/O error on device mtdblock0, logical block 0
[ 116.575776] end_request: I/O error, dev mtdblock0, sector 0
[ 116.581387] Buffer I/O error on device mtdblock0, logical block 0
Disk /dev/mtdblock1: 2 MB, 2097152 bytes
255 heads, 63 sectors/track, 0 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/mtdblock1 doesn't contain a valid partition table
Disk /dev/mtdblock2: 1 MB, 1048576 bytes
255 heads, 63 sectors/track, 0 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/mtdblock2 doesn't contain a valid partition table
Disk /dev/mtdblock3: 1 MB, 1048576 bytes
255 heads, 63 sectors/track, 0 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/mtdblock3 doesn't contain a valid partition table
Disk /dev/mtdblock4: 8 MB, 8388608 bytes
255 heads, 63 sectors/track, 1 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/mtdblock4 doesn't contain a valid partition table
Disk /dev/mtdblock5: 251 MB, 251658240 bytes -----------------------------------按照nand:4-2-1-1-8-240的空间分配,block4不是240M吗,为什么这里显示251M?
255 heads, 63 sectors/track, 30 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/mtdblock5 doesn't contain a valid partition table
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