Yes. No dice. To fix this, you should override the default sub-page size that ubiformat uses to what the kernel expects using the -s option of ubiformat. Sound Systems - Auditory Research in Sound Enhancement - Deuteronomy 2.3.3 15th May 2016 Android Software Development [APP] Dcoder Mobile Coding Platform 6th August 2016 Android Software Development [FREE TRIAL APP]
There is an additional driver called gluebi which can emulate fake MTD devices for each UBI volume and JFFS2 can be used with these emulated MTD devices. The UBI background thread also moves data from more worn-out physical eraseblocks to less worn out, i.e., performs wear-leveling. The code did not currently (as of 2.6.26) perform verification of sub-page writes correctly. Quote: Originally Posted by hosman12 I tired detaching mtd5 but was unable. news
Also, has anyone tried to develop a custom firmware for this hardware? Sorry. Looks like 2.6.37 doesn't have this problem, but I haven't tested it as I think is still in heavy development?
UBI does not use OOB and it requires data to be written sequentially (see here).
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sequence number: 0 UBI: volume 0 ("overo-rootfs") re-sized from 562 to 1973 LEBs UBI: attached mtd4 to ubi0 UBI: MTD device name: "rootfs" UBI: MTD device size: 249 MiB UBI: number
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sequence number: 0 Feb 20 14:19:25 overo gluebi (pid 4345): gluebi_resized: got update notification for unknown UBI device 0 volume 0 Feb 20 14:19:25 overo UBI: volume 0 ("overo-rootfs") re-sized from Googling > shows that I am not the only one having this issue. sequence number: 0 UBI: volume 0 ("overo-rootfs") re-sized from 562 to 1973 LEBs UBI: attached mtd4 to ubi0 UBI: MTD device name: "rootfs" UBI: MTD device size: 249 MiB UBI: number Even if the flash chip is devoid of the last restriction, UBI anyway requires logical eraseblocks to be written sequentially from the beginning to the end.
Top Tuxedo Tonido Team Posts: 1458 Joined: Wed Jan 28, 2009 11:30 pm Re: Reseting the Tonidoplug2 Quote Postby Tuxedo » Wed Aug 29, 2012 12:17 am Nice.. I flash my NAND and I can mount UBIFS partitions and access files. allowed volumes: 128 > UBI: wear-leveling threshold: 4096 > UBI: number of internal volumes: 1 > UBI: number of user volumes: 1 > UBI: available PEBs: 0 > UBI: total number http://www.tonido.com/forum/viewtopic.php?t=5351 Both kernels > has save UBIFS config options enabled with identical values.
And >> UBIFS seems not to work anymore. I wonder if they changed the device order in .56Code: Select all[[email protected] tmp]# cat /proc/mtd dev: size erasesize name mtd0: 00300000 00020000 "gpmi-nfc-0-boot" mtd1: 00400000 00020000 "updater-kernel" mtd2: 01c00000 00020000 If you manage to improve read speed on the driver level, you will also speed up UBI initialization. Follow the steps below $ flash_erase /dev/mtd4 0 0 $ ubiattach /dev/ubi_ctrl -m 4 $ ubimkvol /dev/ubi0 -N rootfs -m $ mkdir /mnt/nand $ mount -t ubifs ubi0:rootfs /mnt/nand $ tar
However, given UBI takes care of many flash complexities, it provides a bad-block-free block device access on top of UBI volumes. http://gumstix.8.x6.nabble.com/UBIFS-boot-fails-to-work-on-latest-release-td597081.html This is why UBI can to deal with empty flash perfectly well - it just automatically formats it. I flash my NAND and I can mount UBIFS > partitions and access files. This means that if you use or ubinize, you should avoid using the -s parameter.
Ideally, yes, but not necessarily. Alternatively you can also ry flashing ubi images from u-boot. - Ravikiran www.pathpartnertech.com Reply Cancel Cancel Reply Suggest as Answer Use rich formatting Prodigy 120 points tooyoungtoosimple Jan 13, 2014 9:02 Top CloneNum3 Site Admin Posts: 101 Joined: Wed Jan 07, 2015 10:02 am Re: Updating rooted Wink Hub Error Quote Postby CloneNum3 » Mon Mar 02, 2015 3:23 pm hossman wrote:I Any other suggestions/corrections ?
Because many flashes (e.g., NOR) do not have OOB and UBI was designed to be generic. allowed volumes: 128 > UBI: wear-leveling threshold: 4096 > UBI: number of internal volumes: 1 > UBI: number of user volumes: 1 > UBI: available PEBs: 0 > UBI: total number Users often wonder why ubinize needs a configuration file. In the command line, I could not use parted, so I used qParted.
Anyone found a solution for controlling different brand bulbs simultaneously? Modifications for u-boot env: setenv nandroot 'ubi0:overo-rootfs ubi.mtd=4,512' setenv nandrootfstype ubifs OR setenv nandroot 'ubi0:overo-rootfs ubi.mtd=4' setenv nandrootfstype ubifs UBIFS error (pid 1): ubifs_get_sb: cannot open "ubi0:overo-rootfs", error -19 twl_rtc twl_rtc: This means that the MTD device the ubi.img is going to be flashed to has to have at least 1772 physical eraseblocks, which is about 221MiB.
Change the bootargs like below for booting from UBIFS. # setenv bootargs 'console=ttyO0,115200n8 mem=160M ubi.mtd=4 rootfstype=ubifs root=ubi0:rootfs rw' -Renjith Reply Cancel Cancel Reply Suggest as Answer Use rich formatting Expert 2090
The UBI background thread is doing background physical eraseblock erasure. If you use an old kernel, which is older than 2.6.30 and where MTD does not support sysfs, you have to pass "-s" argument to ubiformat. But sometimes you may want to ask UBI to ignore sub-pages, for example if you have an UBI image which was made for a similar NAND flash, but without sub-pages, or To avoid such issue, boot your Filesystem from MMC or NFS and try ubi format from kernel.
So not one to try lightly. The implications of the above paragraph are important. Any ideas what's getting wrong here? >>> Modifications for u-boot env: >>> >>> setenv nandroot 'ubi0:overo-rootfs ubi.mtd=4,512' >>> setenv nandrootfstype ubifs >>> >>> OR >>> >>> setenv nandroot 'ubi0:overo-rootfs ubi.mtd=4' >>> The UBI back-ground thread is a per-UBI device thread which has "ubi_bgtXd" name, where "X" is the UBI device number.
I haven't seen anything to that effect. But because of the UBI overhead (see this section), the MTD device actually has to be at least 225MiB in size. Note, UBI may work without the background thread, so the thread is just an optimization, although a very important one. I flash my NAND and I can mount UBIFS partitions and access files.
Connector J8 is interesting - the footprint appears to exactly match that of Molex part 1051330001 - a vertical mounted micro-USB connector.