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Mount JFFS2 FS in openwrt
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I'm trying to mount 1[MB] of flash as JFFS2 FS in openwrt environment, using 128[MB] NAND flash (4 bit ECC).
I'm using the following sequence -
flash_eraseall -j dev/mtd6
mount -t jffs2 -o noatime /dev/mtdblock6 /NAME_OF_MOUNT
After running this sequence, it seems mounting completed and I can access, read and write
to the mounted area.
The problem begins when I reboot the system, during the boot following message appears:
jffs2: mtd->read(0x800 bytes from 0x60000) returned ECC error
jffs2: notice: (667) read_dnode: wrong data CRC in data node at 0x00060000: read 0xf7a2ee2c, calculated 0x2f2a8b04
I have also tried to create nvm.jffs2 file using mkfs.jffs2 and burn it to requested partition - but the issue still occured.
I will appreciate any ideas or thoughts.
Thank you all in advanced!
linux kernel mount openwrt
asked Sep 22 '14 at 7:40
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
bumped to the homepage by Community♦ 1 hour ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
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I'm trying to mount 1[MB] of flash as JFFS2 FS in openwrt environment, using 128[MB] NAND flash (4 bit ECC).
I'm using the following sequence -
flash_eraseall -j dev/mtd6
mount -t jffs2 -o noatime /dev/mtdblock6 /NAME_OF_MOUNT
After running this sequence, it seems mounting completed and I can access, read and write
to the mounted area.
The problem begins when I reboot the system, during the boot following message appears:
jffs2: mtd->read(0x800 bytes from 0x60000) returned ECC error
jffs2: notice: (667) read_dnode: wrong data CRC in data node at 0x00060000: read 0xf7a2ee2c, calculated 0x2f2a8b04
I have also tried to create nvm.jffs2 file using mkfs.jffs2 and burn it to requested partition - but the issue still occured.
I will appreciate any ideas or thoughts.
Thank you all in advanced!
linux kernel mount openwrt
asked Sep 22 '14 at 7:40
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
bumped to the homepage by Community♦ 1 hour ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment
|
I'm trying to mount 1[MB] of flash as JFFS2 FS in openwrt environment, using 128[MB] NAND flash (4 bit ECC).
I'm using the following sequence -
flash_eraseall -j dev/mtd6
mount -t jffs2 -o noatime /dev/mtdblock6 /NAME_OF_MOUNT
After running this sequence, it seems mounting completed and I can access, read and write
to the mounted area.
The problem begins when I reboot the system, during the boot following message appears:
jffs2: mtd->read(0x800 bytes from 0x60000) returned ECC error
jffs2: notice: (667) read_dnode: wrong data CRC in data node at 0x00060000: read 0xf7a2ee2c, calculated 0x2f2a8b04
I have also tried to create nvm.jffs2 file using mkfs.jffs2 and burn it to requested partition - but the issue still occured.
I will appreciate any ideas or thoughts.
Thank you all in advanced!
linux kernel mount openwrt
asked Sep 22 '14 at 7:40
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
I'm trying to mount 1[MB] of flash as JFFS2 FS in openwrt environment, using 128[MB] NAND flash (4 bit ECC).
I'm using the following sequence -
flash_eraseall -j dev/mtd6
mount -t jffs2 -o noatime /dev/mtdblock6 /NAME_OF_MOUNT
After running this sequence, it seems mounting completed and I can access, read and write
to the mounted area.
The problem begins when I reboot the system, during the boot following message appears:
jffs2: mtd->read(0x800 bytes from 0x60000) returned ECC error
jffs2: notice: (667) read_dnode: wrong data CRC in data node at 0x00060000: read 0xf7a2ee2c, calculated 0x2f2a8b04
I have also tried to create nvm.jffs2 file using mkfs.jffs2 and burn it to requested partition - but the issue still occured.
I will appreciate any ideas or thoughts.
Thank you all in advanced!
linux kernel mount openwrt
linux kernel mount openwrt
asked Sep 22 '14 at 7:40
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
asked Sep 22 '14 at 7:40
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
asked Sep 22 '14 at 7:40
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
asked Sep 22 '14 at 7:40
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
asked Sep 22 '14 at 7:40
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
1461 silver badge10 bronze badges
bumped to the homepage by Community♦ 1 hour ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 1 hour ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 1 hour ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment
|
add a comment
|
1 Answer
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oldest
votes
The issue was caused due to clearmarker.
During mounting clearmarker was set at the begining of the block.
However, when writting to block, the oob data was added at the end of the block
and so didn't include the clearmarker and therefor resulted with wrong CRC data report.
A quick WA is to write clearmarker to each flash block once during boot, and then clearmarker
will be added to it and all will work fine.
answered Oct 5 '14 at 14:14
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
add a comment
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1 Answer
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active
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oldest
votes
The issue was caused due to clearmarker.
During mounting clearmarker was set at the begining of the block.
However, when writting to block, the oob data was added at the end of the block
and so didn't include the clearmarker and therefor resulted with wrong CRC data report.
A quick WA is to write clearmarker to each flash block once during boot, and then clearmarker
will be added to it and all will work fine.
answered Oct 5 '14 at 14:14
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
add a comment
|
The issue was caused due to clearmarker.
During mounting clearmarker was set at the begining of the block.
However, when writting to block, the oob data was added at the end of the block
and so didn't include the clearmarker and therefor resulted with wrong CRC data report.
A quick WA is to write clearmarker to each flash block once during boot, and then clearmarker
will be added to it and all will work fine.
answered Oct 5 '14 at 14:14
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
add a comment
|
The issue was caused due to clearmarker.
During mounting clearmarker was set at the begining of the block.
However, when writting to block, the oob data was added at the end of the block
and so didn't include the clearmarker and therefor resulted with wrong CRC data report.
A quick WA is to write clearmarker to each flash block once during boot, and then clearmarker
will be added to it and all will work fine.
answered Oct 5 '14 at 14:14
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
The issue was caused due to clearmarker.
During mounting clearmarker was set at the begining of the block.
However, when writting to block, the oob data was added at the end of the block
and so didn't include the clearmarker and therefor resulted with wrong CRC data report.
A quick WA is to write clearmarker to each flash block once during boot, and then clearmarker
will be added to it and all will work fine.
answered Oct 5 '14 at 14:14
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
answered Oct 5 '14 at 14:14
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
answered Oct 5 '14 at 14:14
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
answered Oct 5 '14 at 14:14
dear_tzvidear_tzvi
1461 silver badge10 bronze badges
1461 silver badge10 bronze badges
add a comment
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add a comment
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