On 11/29/2016 01:14 PM, Brüns, Stefan wrote:
On Dienstag, 29. November 2016 10:50:45 CET you wrote:
Hello,
I am working on a i.MX6UL based board with a 4GB eMMC partitioned as following:
Device Boot Start End Sectors Size Id Type /dev/sdb1 2048 264191 262144 128M 83 Linux /dev/sdb2 264192 4458495 4194304 2G 83 Linux /dev/sdb3 4458496 7634943 3176448 1.5G 83 Linux
On the 2nd partition, I write this ext4 filesystem file generated by Buildroot: Filesystem volume name: "ROOTFS" Last mounted on: <not available> Filesystem UUID: b9833a36-e89d-429a-b120-c3b00bcb7785 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal dir_index filetype extent sparse_super uninit_bg Filesystem flags: signed_directory_hash Default mount options: (none) Filesystem state: clean Errors behavior: Unknown (continue) Filesystem OS type: Linux Inode count: 3456 Block count: 91756
91756 blocks ...
Reserved block count: 4587 Free blocks: 13458 Free inodes: 488 First block: 1 Block size: 1024
1k each -> 91 MByte filesystem
Yes. Is there something wrong here ?
Fragment size: 1024 Blocks per group: 7648 Fragments per group: 7648 Inodes per group: 288 Inode blocks per group: 36 Last mount time: n/a Last write time: Tue Nov 29 09:44:52 2016 Mount count: 0 Maximum mount count: -1 Last checked: Tue Nov 29 09:44:52 2016 Check interval: 0 (<none>) Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 128 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: a583a07f-6b59-442d-8e08-9be305f78d17 Journal backup: inode blocks
This filesystem is written with the following commands:
BIOS> setexpr nbblocks ${filesize} / 0x200 BIOS> setexpr nbblocks ${nbblocks} + 1 BIOS> mmc write ${loadaddr} 0x40800 ${nbblocks} MMC write: dev # 0, block # 264192, count 183513 ... 183513 blocks written: OK
I can boot Linux with it without any issues, however if I try to write a file in it I get the following crash:
BIOS> ext4write mmc 0:2 ${loadaddr} /boot/${kernelimg} ${filesize}
What are you trying to achieve here? What is the value of $filesize?
I try to update the kernel image which is /boot/opos6ul-linux.bin. I download it from a tftp server so $filesize is the size of the kernel image
BIOS> printenv filesize filesize=518f68
Btw, which u-boot version are you using?
I first noticed the issue on U-Boot 2016.05 so I rebase on master from http://git.denx.de/u-boot.git
Regards,
Regards,
Stefan