[U-Boot] UBI: volume auto-resize

[Matevz Langus]

Hi,

Thanks, initial problem about the subpage size was solved fast. The question still remains, is it wise to let u-boot resize volumes if it only boots from one of the volumes.

Matevz Langus

On 13. maj 2012, at 19:09, Marek Vasut <marek.vasut at gmail.com> wrote:

> Dear Matevz Langus,
> 
>> Hi,
>> 
>> I found an interesting situation where I can not decide whether it is a bug
>> or functionality that should not be included at all.
>> 
>> If I generate UBI image consisting of 3 Volumes to NAND flash on my board,
>> U-boot  does not attach UBI to MTD. This happens only if UBI contains a
>> volume that has auto-resize flag set. U-boot tries to resize it but fails.
>> 
>> Just started fixing it, but I have a question. Is it desirable that U-boot
>> changes something in the FS? Would it not be better if U-boot would just
>> read things out (that is all I want, to get uImage and dtb file) and leave
>> the rest to Linux. (Linux handles the procedure without any issues).
>> 
>> Any opinion welcome.
>> 
>> Creating 1 MTD partitions on "nand0":
>> 0x000000200000-0x000008000000 : "mtd=2"
>> Bad block table found at page 65472, version 0x01
>> Bad block table found at page 65408, version 0x01
>> nand_read_bbt: Bad block at 0x0000011a0000
>> UBI: attaching mtd1 to ubi0
>> UBI: physical eraseblock size:   131072 bytes (128 KiB)
>> UBI: logical eraseblock size:    129024 bytes
>> UBI: smallest flash I/O unit:    2048
>> UBI: sub-page size:              512
> 
> Is the subpage size here correct? I know at least about one driver that might 
> misreport it under certain conditions.
> 
> Best regards,
> Marek Vasut