2008-12-26 05:06:38     Help: mount -t jffs2 /dev/mtd2 /mnt failed!

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2008-12-26 05:06:38     Help: mount -t jffs2 /dev/mtd2 /mnt failed!

Tony Liu (CHINA)

Message: 67120   

 

CPU: BF531

 

SPI Flash: M25P64

 

System start i can get the info as below:

 

root: /> cat /proc/mtd

 

dev:    size   erasesize  name

 

mtd0: 00040000 00010000 "bootloader"

 

mtd1: 003c0000 00010000 "kernel"

 

mtd2: 00400000 00010000 "file system"

 

root: /> erase /dev/mtd2

 

Erasing 64 Kibyte @ 0 --  0 % complete. Erasing 64 Kibyte @ 10000 --  1 % ......................

 

Erased 4096 Kibyte @ 0 -- 100% complete.

 

root: /> mount -t  j  ffs2  /dev/mtd2  /mnt

 

mount: mounting /dev/mtd2 on /mnt failed

 

Why & How to do ?

 

BR!

 

 

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2008-12-26 07:02:08     Re: Help: mount -t jffs2 /dev/mtd2 /mnt failed!

Tony Liu (CHINA)

Message: 67122   

 

Test mtd2 can use? As below:

 

root:/bin> time cp md5sum /dev/mtd2

real 0m 1.83s

user 0m 0.00s

sys 0m 0.38s

 

From the information mtd2 is OK?

 

But mount failed!

 

???????????????

 

 

 

 

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2008-12-26 07:35:47     Re: Help: mount -t jffs2 /dev/mtd2 /mnt failed!

Tony Liu (CHINA)

Message: 67123   

 

Now mount jffs2 is ok. But I don't know the reason! Who could tell me?

 

System boot, then using:

 

root:> cd /dev

root:/dev> mount -t jffs2 mtd2 /mnt

 

It's OK!

 

But Using:

 

root:>  mount -t jffs2 /dev/mtd2 /mnt

 

failed!

 

Must enter the /dev dir ?

 

 

 

 

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2008-12-26 08:36:42     Re: Help: mount -t jffs2 /dev/mtd2 /mnt failed!

Robin Getz (UNITED STATES)

Message: 67124   

 

Tony:

 

You need for format the partition before you can mount it. (just like your desktop) - use mkfs.jffs2 - it's part of the mtd-utils

 

http://docs.blackfin.uclinux.org/doku.php?id=uclinux-dist:mtd-utils

 

-Robin

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