Hi All,<div>             Please help me how to flash the ubi image from barebox.</div><div>I generated the ubifs image using the mkfs.jffs2, then I created the ubi image using the ubinize. I am trying to flash this ubi image on NAND.</div>
<div><br></div><div>I tried in two ways</div><div>1) I flashed the UBI image directly on /dev/<a href="http://nand0.rootfs.bb">nand0.rootfs.bb</a>(erased the partition before flash). </div><div>In this method I am getting the errors like below</div>
<div><br></div><div><div>Freeing init memory: 152K</div><div>[   15.420000] UBI warning: ubi_io_read_vid_hdr: bad magic number at PEB 255: 7d6be97d instead of 55424921</div><div>[   15.430000] UBI warning: ubi_eba_copy_leb: error 3 while reading VID header back from PEB 255</div>
<div>[   15.510000] UBI: run torture test for PEB 255</div><div>[   19.430000] UBI error: torture_peb: read problems on freshly erased PEB 255, must be bad</div><div>[   19.440000] UBI error: erase_worker: failed to erase PEB 255, error -5</div>
<div>[   19.440000] UBI: mark PEB 255 as bad</div><div>[   19.450000] UBI: 1 PEBs left in the reserve</div><div>[   20.690000] UBI warning: ubi_io_read_vid_hdr: bad magic number at PEB 254: 7d6be97d instead of 55424921</div>
<div>[   20.700000] UBI warning: ubi_eba_copy_leb: error 3 while reading VID header back from PEB 254</div><div>[   20.710000] UBI: run torture test for PEB 254</div><div>[   24.630000] UBI error: torture_peb: read problems on freshly erased PEB 254, must be bad</div>
<div>[   24.640000] UBI error: erase_worker: failed to erase PEB 254, error -5</div><div>[   24.640000] UBI: mark PEB 254 as bad</div><div>[   24.650000] UBI warning: erase_worker: last PEB from the reserved pool was used</div>
<div>[   26.030000] UBI warning: ubi_io_read_vid_hdr: bad magic number at PEB 253: 7d6be97d instead of 55424921</div><div>[   26.040000] UBI warning: ubi_eba_copy_leb: error 3 while reading VID header back from PEB 253</div>
<div>[   26.050000] UBI: run torture test for PEB 253</div><div>[   29.980000] UBI error: torture_peb: read problems on freshly erased PEB 253, must be bad</div><div>[   29.990000] UBI error: erase_worker: failed to erase PEB 253, error -5</div>
<div>[   30.000000] UBI error: erase_worker: no reserved physical eraseblocks</div><div>[   30.010000] UBI warning: ubi_ro_mode: switch to read-only mode</div><div>[   30.010000] Backtrace:</div><div>[   30.010000] [&lt;c000c528&gt;] (dump_backtrace+0x0/0x110) from [&lt;c038df94&gt;] (dump_stack+0x18/0x1c)</div>
<div>[   30.020000]  r6:dfac2b30 r5:dfac2800 r4:fffffffb r3:c04d93dc</div><div>[   30.030000] [&lt;c038df7c&gt;] (dump_stack+0x0/0x1c) from [&lt;c023f05c&gt;] (erase_worker+0x55c/0x5c8)</div><div>[   30.040000] [&lt;c023eb00&gt;] (erase_worker+0x0/0x5c8) from [&lt;c023f858&gt;] (do_work+0xd8/0x114)</div>
<div>[   30.040000] [&lt;c023f780&gt;] (do_work+0x0/0x114) from [&lt;c02400dc&gt;] (ubi_thread+0x10c/0x19c)</div><div>[   30.050000]  r7:00000000 r6:00000000 r5:dfb84000 r4:dfac2800</div><div>[   30.060000] [&lt;c023ffd0&gt;] (ubi_thread+0x0/0x19c) from [&lt;c0049f18&gt;] (kthread+0x90/0x98)</div>
<div>[   30.070000] [&lt;c0049e88&gt;] (kthread+0x0/0x98) from [&lt;c002f654&gt;] (do_exit+0x0/0x69c)</div><div>[   30.070000]  r6:c002f654 r5:c0049e88 r4:df82ded4</div><div>[   30.080000] UBI error: do_work: work failed with error code -5</div>
<div>[   30.080000] UBI error: ubi_thread: ubi_bgt0d: work failed with error code -5</div></div><div><br></div><div>2) I executed the below commands from barebox</div><div>#erase /dev/<a href="http://nand0.rootfs.bb">nand0.rootfs.bb</a></div>
<div>#ubiattach /dev/nand0.rootfs</div><div> After this command it created the /dev/ubi0</div><div>#ubimkvol /dev/ubi0 rootfs 0</div><div>   After this command it created the /dev/ubi0.rootfs</div><div>After these commands I copied the ubifs image on to the /dev/ubi0.rootfs.</div>
<div> #tftp root.ubifs /dev/ubi0.rootfs</div><div>Now I booted the kernel, in this method, I am getting the error like the volume layout not found.</div><div><br></div><div>Please tell me which method is correct. If the above two methods are not correct, please suggest me the correct method.</div>
<div><br></div><div>Thanks</div><div><br></div>