Re: Help with data recovering

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adding -v, as an example:
sudo btrfs-find-root -v -v -v -v -v /dev/sdb

didn't change output at all.

On 06/04/2012 08:11 AM, Hugo Mills wrote:
On Mon, Jun 04, 2012 at 08:01:32AM -0400, Maxim Mikheev wrote:
Thank you for helping.
    I'm not sure I can be of much help, but there were a few things
missing from the earlier conversation that I wanted to check the
details of.

~$ uname -a
Linux s0 3.4.0-030400-generic #201205210521 SMP Mon May 21 09:22:02
UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

I compiled progs from recent git (week or two ago). I can compile it
again if there updates.
    No, that should be recent enough. I don't think there have been any
major updates since then.

The output of btrfs-find-root is pretty long and below:
max@s0:~$ sudo btrfs-find-root /dev/sdb
Super think's the tree root is at 5532762525696, chunk root 20979712
Well block 619435147264 seems great, but generation doesn't match,
have=8746, want=9096
    This is not long enough, unfortunately. At least some of these
should have a list of trees before them. At the moment, it's not
reporting any trees at all. (At least, it should be doing this unless
Chris took that line of code out). Do you get anything extra from
adding a few -v options to the command?

    I would suggest, in the absence of any better ideas, sorting this
list by the "have=" value, and systematically working down from the
largest to the smallest, running btrfs-restore -t $n for each one
(where $n is corresponding block number).

    Hugo.

Well block 743223128064 seems great, but generation doesn't match,
have=8748, want=9096
Well block 743248633856 seems great, but generation doesn't match,
have=8752, want=9096
Well block 743266234368 seems great, but generation doesn't match,
have=8753, want=9096
Well block 969724792832 seems great, but generation doesn't match,
have=5637, want=9096
Well block 1098761064448 seems great, but generation doesn't match,
have=8754, want=9096
Well block 1098864041984 seems great, but generation doesn't match,
have=8755, want=9096
Well block 1098934513664 seems great, but generation doesn't match,
have=5669, want=9096
Well block 1158068850688 seems great, but generation doesn't match,
have=8756, want=9096
Well block 1158075731968 seems great, but generation doesn't match,
have=8758, want=9096
Well block 1158076698624 seems great, but generation doesn't match,
have=8757, want=9096
Well block 1158088052736 seems great, but generation doesn't match,
have=8759, want=9096
Well block 1158100176896 seems great, but generation doesn't match,
have=8760, want=9096
Well block 1158148661248 seems great, but generation doesn't match,
have=8761, want=9096
Well block 2100757860352 seems great, but generation doesn't match,
have=5764, want=9096
Well block 2466610917376 seems great, but generation doesn't match,
have=8762, want=9096
Well block 2466672377856 seems great, but generation doesn't match,
have=8763, want=9096
Well block 2488210591744 seems great, but generation doesn't match,
have=8764, want=9096
Well block 2531410206720 seems great, but generation doesn't match,
have=8767, want=9096
Well block 2531417419776 seems great, but generation doesn't match,
have=8768, want=9096
Well block 2531424862208 seems great, but generation doesn't match,
have=8766, want=9096
Well block 2531434991616 seems great, but generation doesn't match,
have=8771, want=9096
Well block 2531487129600 seems great, but generation doesn't match,
have=8772, want=9096
Well block 2531488305152 seems great, but generation doesn't match,
have=8773, want=9096
Well block 2531535376384 seems great, but generation doesn't match,
have=8774, want=9096
Well block 2531544256512 seems great, but generation doesn't match,
have=8775, want=9096
Well block 2531545665536 seems great, but generation doesn't match,
have=8777, want=9096
Well block 2531545931776 seems great, but generation doesn't match,
have=8776, want=9096
Well block 2531556044800 seems great, but generation doesn't match,
have=8778, want=9096
Well block 2531566743552 seems great, but generation doesn't match,
have=8779, want=9096
Well block 2531568861184 seems great, but generation doesn't match,
have=8781, want=9096
Well block 2531580190720 seems great, but generation doesn't match,
have=8780, want=9096
Well block 2531622813696 seems great, but generation doesn't match,
have=8783, want=9096
Well block 2531640410112 seems great, but generation doesn't match,
have=8784, want=9096
Well block 2579974737920 seems great, but generation doesn't match,
have=5973, want=9096
Well block 2579981524992 seems great, but generation doesn't match,
have=8786, want=9096
Well block 2579986628608 seems great, but generation doesn't match,
have=8785, want=9096
Well block 2579986755584 seems great, but generation doesn't match,
have=8787, want=9096
Well block 2580003811328 seems great, but generation doesn't match,
have=8788, want=9096
Well block 2580047167488 seems great, but generation doesn't match,
have=8789, want=9096
Well block 2580099772416 seems great, but generation doesn't match,
have=8790, want=9096
Well block 2580101951488 seems great, but generation doesn't match,
have=8791, want=9096
Well block 2580141211648 seems great, but generation doesn't match,
have=8793, want=9096
Well block 2580156325888 seems great, but generation doesn't match,
have=8795, want=9096
Well block 2580163178496 seems great, but generation doesn't match,
have=8797, want=9096
Well block 2580167774208 seems great, but generation doesn't match,
have=8796, want=9096
Well block 2580172333056 seems great, but generation doesn't match,
have=8798, want=9096
Well block 2580174557184 seems great, but generation doesn't match,
have=8799, want=9096
Well block 2580185227264 seems great, but generation doesn't match,
have=8801, want=9096
Well block 2580185432064 seems great, but generation doesn't match,
have=8800, want=9096
Well block 2623192694784 seems great, but generation doesn't match,
have=8802, want=9096
Well block 2623196753920 seems great, but generation doesn't match,
have=8803, want=9096
Well block 2623215923200 seems great, but generation doesn't match,
have=8805, want=9096
Well block 2623224307712 seems great, but generation doesn't match,
have=8806, want=9096
Well block 2623225470976 seems great, but generation doesn't match,
have=8807, want=9096
Well block 2623260155904 seems great, but generation doesn't match,
have=8808, want=9096
Well block 2623262482432 seems great, but generation doesn't match,
have=8809, want=9096
Well block 2623318437888 seems great, but generation doesn't match,
have=8810, want=9096
Well block 2623324426240 seems great, but generation doesn't match,
have=8812, want=9096
Well block 2623325806592 seems great, but generation doesn't match,
have=8811, want=9096
Well block 2623406964736 seems great, but generation doesn't match,
have=8813, want=9096
Well block 2623412379648 seems great, but generation doesn't match,
have=8814, want=9096
Well block 2714790506496 seems great, but generation doesn't match,
have=8815, want=9096
Well block 2827742171136 seems great, but generation doesn't match,
have=6089, want=9096
Well block 2827822125056 seems great, but generation doesn't match,
have=8816, want=9096
Well block 2827859574784 seems great, but generation doesn't match,
have=8817, want=9096
Well block 2827885608960 seems great, but generation doesn't match,
have=8818, want=9096
Well block 2827965370368 seems great, but generation doesn't match,
have=8819, want=9096
Well block 2827996184576 seems great, but generation doesn't match,
have=8820, want=9096
Well block 2887060779008 seems great, but generation doesn't match,
have=6096, want=9096
Well block 2887071612928 seems great, but generation doesn't match,
have=8823, want=9096
Well block 2887072702464 seems great, but generation doesn't match,
have=8821, want=9096
Well block 2887078473728 seems great, but generation doesn't match,
have=8822, want=9096
Well block 2887120949248 seems great, but generation doesn't match,
have=8825, want=9096
Well block 2887138783232 seems great, but generation doesn't match,
have=8827, want=9096
Well block 2887139446784 seems great, but generation doesn't match,
have=8828, want=9096
Well block 2887146373120 seems great, but generation doesn't match,
have=8829, want=9096
Well block 2887158681600 seems great, but generation doesn't match,
have=8830, want=9096
Well block 2887163641856 seems great, but generation doesn't match,
have=8831, want=9096
Well block 2887189938176 seems great, but generation doesn't match,
have=6113, want=9096
Well block 2887196823552 seems great, but generation doesn't match,
have=6114, want=9096
Well block 2887205089280 seems great, but generation doesn't match,
have=6115, want=9096
Well block 2887206965248 seems great, but generation doesn't match,
have=6116, want=9096
Well block 2887213744128 seems great, but generation doesn't match,
have=6117, want=9096
Well block 2887220994048 seems great, but generation doesn't match,
have=6118, want=9096
Well block 2887242031104 seems great, but generation doesn't match,
have=6119, want=9096
Well block 2887250567168 seems great, but generation doesn't match,
have=6120, want=9096
Well block 2887255285760 seems great, but generation doesn't match,
have=6121, want=9096
Well block 2887261667328 seems great, but generation doesn't match,
have=6122, want=9096
Well block 2887268433920 seems great, but generation doesn't match,
have=6123, want=9096
Well block 2887275102208 seems great, but generation doesn't match,
have=6124, want=9096
Well block 2887281631232 seems great, but generation doesn't match,
have=6125, want=9096
Well block 2887284424704 seems great, but generation doesn't match,
have=6126, want=9096
Well block 2887291019264 seems great, but generation doesn't match,
have=6127, want=9096
Well block 2887296684032 seems great, but generation doesn't match,
have=6128, want=9096
Well block 2887303159808 seems great, but generation doesn't match,
have=6129, want=9096
Well block 2887309631488 seems great, but generation doesn't match,
have=8833, want=9096
Well block 2887310200832 seems great, but generation doesn't match,
have=8832, want=9096
Well block 2946415992832 seems great, but generation doesn't match,
have=8834, want=9096
Well block 2946421940224 seems great, but generation doesn't match,
have=8835, want=9096
Well block 2946563887104 seems great, but generation doesn't match,
have=8837, want=9096
Well block 2946566844416 seems great, but generation doesn't match,
have=8838, want=9096
Well block 2984269713408 seems great, but generation doesn't match,
have=8844, want=9096
Well block 2984277966848 seems great, but generation doesn't match,
have=8840, want=9096
Well block 2984284127232 seems great, but generation doesn't match,
have=8845, want=9096
Well block 2984285650944 seems great, but generation doesn't match,
have=8846, want=9096
Well block 2984365961216 seems great, but generation doesn't match,
have=8847, want=9096
Well block 2984382795776 seems great, but generation doesn't match,
have=8848, want=9096
Well block 2984383729664 seems great, but generation doesn't match,
have=8849, want=9096
Well block 2984385560576 seems great, but generation doesn't match,
have=8850, want=9096
Well block 2984389398528 seems great, but generation doesn't match,
have=8851, want=9096
Well block 2984396165120 seems great, but generation doesn't match,
have=8852, want=9096
Well block 2984406396928 seems great, but generation doesn't match,
have=8854, want=9096
Well block 2984458833920 seems great, but generation doesn't match,
have=8856, want=9096
Well block 2984486629376 seems great, but generation doesn't match,
have=8857, want=9096
Well block 3022114922496 seems great, but generation doesn't match,
have=8860, want=9096
Well block 3022121263104 seems great, but generation doesn't match,
have=8859, want=9096
Well block 3022132695040 seems great, but generation doesn't match,
have=8861, want=9096
Well block 3022162219008 seems great, but generation doesn't match,
have=8862, want=9096
Well block 3022205132800 seems great, but generation doesn't match,
have=8863, want=9096
Well block 3022215454720 seems great, but generation doesn't match,
have=8864, want=9096
Well block 3022216146944 seems great, but generation doesn't match,
have=8865, want=9096
Well block 3022300733440 seems great, but generation doesn't match,
have=8866, want=9096
Well block 3022307860480 seems great, but generation doesn't match,
have=8867, want=9096
Well block 3065306001408 seems great, but generation doesn't match,
have=8868, want=9096
Well block 3065333374976 seems great, but generation doesn't match,
have=8870, want=9096
Well block 3065333981184 seems great, but generation doesn't match,
have=8869, want=9096
Well block 3065341300736 seems great, but generation doesn't match,
have=8871, want=9096
Well block 3065341947904 seems great, but generation doesn't match,
have=8872, want=9096
Well block 3065384251392 seems great, but generation doesn't match,
have=8873, want=9096
Well block 3065395499008 seems great, but generation doesn't match,
have=8874, want=9096
Well block 3065432784896 seems great, but generation doesn't match,
have=8875, want=9096
Well block 3065435996160 seems great, but generation doesn't match,
have=8876, want=9096
Well block 3065474654208 seems great, but generation doesn't match,
have=8877, want=9096
Well block 3065476714496 seems great, but generation doesn't match,
have=8878, want=9096
Well block 3065496293376 seems great, but generation doesn't match,
have=8880, want=9096
Well block 3065496625152 seems great, but generation doesn't match,
have=8881, want=9096
Well block 3065499615232 seems great, but generation doesn't match,
have=8882, want=9096
Well block 3065522581504 seems great, but generation doesn't match,
have=8886, want=9096
Well block 3103147339776 seems great, but generation doesn't match,
have=8887, want=9096
Well block 3103149096960 seems great, but generation doesn't match,
have=8888, want=9096
Well block 3103154950144 seems great, but generation doesn't match,
have=8889, want=9096
Well block 3103165263872 seems great, but generation doesn't match,
have=8890, want=9096
Well block 3103165509632 seems great, but generation doesn't match,
have=8891, want=9096
Well block 3103168155648 seems great, but generation doesn't match,
have=8892, want=9096
Well block 3103171592192 seems great, but generation doesn't match,
have=8893, want=9096
Well block 3103175024640 seems great, but generation doesn't match,
have=8894, want=9096
Well block 3103185793024 seems great, but generation doesn't match,
have=8896, want=9096
Well block 3103188922368 seems great, but generation doesn't match,
have=8895, want=9096
Well block 3103210176512 seems great, but generation doesn't match,
have=8897, want=9096
Well block 3103210971136 seems great, but generation doesn't match,
have=8898, want=9096
Well block 3103228485632 seems great, but generation doesn't match,
have=8899, want=9096
Well block 3103237844992 seems great, but generation doesn't match,
have=8900, want=9096
Well block 3103238144000 seems great, but generation doesn't match,
have=8901, want=9096
Well block 3103240544256 seems great, but generation doesn't match,
have=8902, want=9096
Well block 3103243677696 seems great, but generation doesn't match,
have=8903, want=9096
Well block 3103244447744 seems great, but generation doesn't match,
have=8904, want=9096
Well block 3103258718208 seems great, but generation doesn't match,
have=8905, want=9096
Well block 3103261290496 seems great, but generation doesn't match,
have=8906, want=9096
Well block 3103281463296 seems great, but generation doesn't match,
have=8907, want=9096
Well block 3103282315264 seems great, but generation doesn't match,
have=8908, want=9096
Well block 3103298441216 seems great, but generation doesn't match,
have=8909, want=9096
Well block 3103302393856 seems great, but generation doesn't match,
have=6389, want=9096
Well block 3103323017216 seems great, but generation doesn't match,
have=8910, want=9096
Well block 3103323447296 seems great, but generation doesn't match,
have=8911, want=9096
Well block 3103325896704 seems great, but generation doesn't match,
have=8912, want=9096
Well block 3103329468416 seems great, but generation doesn't match,
have=8913, want=9096
Well block 3103330926592 seems great, but generation doesn't match,
have=8914, want=9096
Well block 3103345201152 seems great, but generation doesn't match,
have=8915, want=9096
Well block 3103345958912 seems great, but generation doesn't match,
have=8916, want=9096
Well block 3103368241152 seems great, but generation doesn't match,
have=8917, want=9096
Well block 3103369076736 seems great, but generation doesn't match,
have=8918, want=9096
Well block 3103382474752 seems great, but generation doesn't match,
have=8919, want=9096
Well block 3103395471360 seems great, but generation doesn't match,
have=8920, want=9096
Well block 3103395753984 seems great, but generation doesn't match,
have=8921, want=9096
Well block 3103398383616 seems great, but generation doesn't match,
have=8922, want=9096
Well block 3103401709568 seems great, but generation doesn't match,
have=8923, want=9096
Well block 3103403487232 seems great, but generation doesn't match,
have=8924, want=9096
Well block 3103411101696 seems great, but generation doesn't match,
have=8925, want=9096
Well block 3216163819520 seems great, but generation doesn't match,
have=6451, want=9096
Well block 3216170438656 seems great, but generation doesn't match,
have=6507, want=9096
Well block 3216180826112 seems great, but generation doesn't match,
have=6509, want=9096
Well block 3216188633088 seems great, but generation doesn't match,
have=8926, want=9096
Well block 3216201068544 seems great, but generation doesn't match,
have=8927, want=9096
Well block 3216202895360 seems great, but generation doesn't match,
have=8928, want=9096
Well block 3216226570240 seems great, but generation doesn't match,
have=8929, want=9096
Well block 3216227221504 seems great, but generation doesn't match,
have=8930, want=9096
Well block 3216242212864 seems great, but generation doesn't match,
have=8931, want=9096
Well block 3216250953728 seems great, but generation doesn't match,
have=8932, want=9096
Well block 3216251314176 seems great, but generation doesn't match,
have=8933, want=9096
Well block 3216253743104 seems great, but generation doesn't match,
have=8934, want=9096
Well block 3216257495040 seems great, but generation doesn't match,
have=8935, want=9096
Well block 3216260059136 seems great, but generation doesn't match,
have=8936, want=9096
Well block 3216274374656 seems great, but generation doesn't match,
have=8938, want=9096
Well block 3216274612224 seems great, but generation doesn't match,
have=8937, want=9096
Well block 3216289120256 seems great, but generation doesn't match,
have=6477, want=9096
Well block 3216298061824 seems great, but generation doesn't match,
have=6520, want=9096
Well block 3216307097600 seems great, but generation doesn't match,
have=6521, want=9096
Well block 3216364236800 seems great, but generation doesn't match,
have=8939, want=9096
Well block 3216365404160 seems great, but generation doesn't match,
have=8940, want=9096
Well block 3216387854336 seems great, but generation doesn't match,
have=8941, want=9096
Well block 3216403558400 seems great, but generation doesn't match,
have=8942, want=9096
Well block 3216404262912 seems great, but generation doesn't match,
have=8943, want=9096
Well block 3216407031808 seems great, but generation doesn't match,
have=8944, want=9096
Well block 3216410210304 seems great, but generation doesn't match,
have=8945, want=9096
Well block 3216411242496 seems great, but generation doesn't match,
have=8946, want=9096
Well block 3259377135616 seems great, but generation doesn't match,
have=8947, want=9096
Well block 3259392462848 seems great, but generation doesn't match,
have=8949, want=9096
Well block 3259393642496 seems great, but generation doesn't match,
have=8950, want=9096
Well block 3259398754304 seems great, but generation doesn't match,
have=8948, want=9096
Well block 3259411787776 seems great, but generation doesn't match,
have=8951, want=9096
Well block 3259419025408 seems great, but generation doesn't match,
have=6571, want=9096
Well block 3259422646272 seems great, but generation doesn't match,
have=8952, want=9096
Well block 3259423043584 seems great, but generation doesn't match,
have=8953, want=9096
Well block 3259430191104 seems great, but generation doesn't match,
have=8954, want=9096
Well block 3259436924928 seems great, but generation doesn't match,
have=8955, want=9096
Well block 3259439054848 seems great, but generation doesn't match,
have=8956, want=9096
Well block 3259453116416 seems great, but generation doesn't match,
have=8958, want=9096
Well block 3259454189568 seems great, but generation doesn't match,
have=8957, want=9096
Well block 3259479363584 seems great, but generation doesn't match,
have=8959, want=9096
Well block 3259480965120 seems great, but generation doesn't match,
have=8960, want=9096
Well block 3259514920960 seems great, but generation doesn't match,
have=8961, want=9096
Well block 3259539255296 seems great, but generation doesn't match,
have=8962, want=9096
Well block 3259540201472 seems great, but generation doesn't match,
have=8963, want=9096
Well block 3259547783168 seems great, but generation doesn't match,
have=8964, want=9096
Well block 3259555237888 seems great, but generation doesn't match,
have=8965, want=9096
Well block 3259556577280 seems great, but generation doesn't match,
have=8966, want=9096
Well block 3259586670592 seems great, but generation doesn't match,
have=6553, want=9096
Well block 3259622793216 seems great, but generation doesn't match,
have=8967, want=9096
Well block 3259631628288 seems great, but generation doesn't match,
have=8968, want=9096
Well block 3259633111040 seems great, but generation doesn't match,
have=8969, want=9096
Well block 3307982426112 seems great, but generation doesn't match,
have=8971, want=9096
Well block 3308003274752 seems great, but generation doesn't match,
have=8972, want=9096
Well block 3308008677376 seems great, but generation doesn't match,
have=6881, want=9096
Well block 3308015095808 seems great, but generation doesn't match,
have=8975, want=9096
Well block 3308031418368 seems great, but generation doesn't match,
have=8977, want=9096
Well block 3308041916416 seems great, but generation doesn't match,
have=8979, want=9096
Well block 3308047122432 seems great, but generation doesn't match,
have=8978, want=9096
Well block 3308071120896 seems great, but generation doesn't match,
have=8980, want=9096
Well block 3308072128512 seems great, but generation doesn't match,
have=8981, want=9096
Well block 3308085768192 seems great, but generation doesn't match,
have=8982, want=9096
Well block 3308094103552 seems great, but generation doesn't match,
have=8983, want=9096
Well block 3308094361600 seems great, but generation doesn't match,
have=8984, want=9096
Well block 3308096815104 seems great, but generation doesn't match,
have=8985, want=9096
Well block 3308100771840 seems great, but generation doesn't match,
have=8986, want=9096
Well block 3308102782976 seems great, but generation doesn't match,
have=8987, want=9096
Well block 3308120915968 seems great, but generation doesn't match,
have=6936, want=9096
Well block 3308123820032 seems great, but generation doesn't match,
have=8988, want=9096
Well block 3308124946432 seems great, but generation doesn't match,
have=8989, want=9096
Well block 3308149964800 seems great, but generation doesn't match,
have=8990, want=9096
Well block 3308151025664 seems great, but generation doesn't match,
have=8991, want=9096
Well block 3308163780608 seems great, but generation doesn't match,
have=8992, want=9096
Well block 3308167315456 seems great, but generation doesn't match,
have=6961, want=9096
Well block 3308169089024 seems great, but generation doesn't match,
have=6962, want=9096
Well block 3308169162752 seems great, but generation doesn't match,
have=6963, want=9096
Well block 3308170137600 seems great, but generation doesn't match,
have=6964, want=9096
Well block 3308173950976 seems great, but generation doesn't match,
have=6965, want=9096
Well block 3308174385152 seems great, but generation doesn't match,
have=6966, want=9096
Well block 3308176388096 seems great, but generation doesn't match,
have=8993, want=9096
Well block 3308176777216 seems great, but generation doesn't match,
have=8994, want=9096
Well block 3308179423232 seems great, but generation doesn't match,
have=8995, want=9096
Well block 3308183064576 seems great, but generation doesn't match,
have=8996, want=9096
Well block 3308184117248 seems great, but generation doesn't match,
have=8997, want=9096
Well block 3308192186368 seems great, but generation doesn't match,
have=6974, want=9096
Well block 3308195463168 seems great, but generation doesn't match,
have=8998, want=9096
Well block 3308196433920 seems great, but generation doesn't match,
have=8999, want=9096
Well block 3308217372672 seems great, but generation doesn't match,
have=9000, want=9096
Well block 3308218216448 seems great, but generation doesn't match,
have=9001, want=9096
Well block 3356598226944 seems great, but generation doesn't match,
have=7009, want=9096
Well block 3356689129472 seems great, but generation doesn't match,
have=7012, want=9096
Well block 3356693929984 seems great, but generation doesn't match,
have=7013, want=9096
Well block 3356699000832 seems great, but generation doesn't match,
have=7015, want=9096
Well block 3356700569600 seems great, but generation doesn't match,
have=9002, want=9096
Well block 3356708118528 seems great, but generation doesn't match,
have=9003, want=9096
Well block 3356712800256 seems great, but generation doesn't match,
have=9005, want=9096
Well block 3356714262528 seems great, but generation doesn't match,
have=9004, want=9096
Well block 3356742012928 seems great, but generation doesn't match,
have=9009, want=9096
Well block 3356807712768 seems great, but generation doesn't match,
have=9010, want=9096
Well block 3356810645504 seems great, but generation doesn't match,
have=9011, want=9096
Well block 3405159735296 seems great, but generation doesn't match,
have=5263, want=9096
Well block 3405196206080 seems great, but generation doesn't match,
have=9012, want=9096
Well block 3405245640704 seems great, but generation doesn't match,
have=9015, want=9096
Well block 3405265301504 seems great, but generation doesn't match,
have=9016, want=9096
Well block 3405270106112 seems great, but generation doesn't match,
have=9017, want=9096
Well block 3405289385984 seems great, but generation doesn't match,
have=9019, want=9096
Well block 3405383557120 seems great, but generation doesn't match,
have=9020, want=9096
Well block 3405384617984 seems great, but generation doesn't match,
have=9021, want=9096
Well block 3475205132288 seems great, but generation doesn't match,
have=5278, want=9096
Well block 3475206082560 seems great, but generation doesn't match,
have=5279, want=9096
Well block 3475230576640 seems great, but generation doesn't match,
have=7123, want=9096
Well block 3475232927744 seems great, but generation doesn't match,
have=7125, want=9096
Well block 3475235311616 seems great, but generation doesn't match,
have=9023, want=9096
Well block 3475237179392 seems great, but generation doesn't match,
have=9025, want=9096
Well block 3475240382464 seems great, but generation doesn't match,
have=7128, want=9096
Well block 3475266129920 seems great, but generation doesn't match,
have=9028, want=9096
Well block 3475279261696 seems great, but generation doesn't match,
have=9027, want=9096
Well block 3475337981952 seems great, but generation doesn't match,
have=9032, want=9096
Well block 3475352297472 seems great, but generation doesn't match,
have=9031, want=9096
Well block 3518444724224 seems great, but generation doesn't match,
have=9038, want=9096
Well block 3518445928448 seems great, but generation doesn't match,
have=9035, want=9096
Well block 3518446641152 seems great, but generation doesn't match,
have=9033, want=9096
Well block 3518460506112 seems great, but generation doesn't match,
have=9042, want=9096
Well block 3518469042176 seems great, but generation doesn't match,
have=9041, want=9096
Well block 3518602706944 seems great, but generation doesn't match,
have=9048, want=9096
Well block 3518610194432 seems great, but generation doesn't match,
have=9044, want=9096
Well block 3518614880256 seems great, but generation doesn't match,
have=9049, want=9096
Well block 3518619107328 seems great, but generation doesn't match,
have=9050, want=9096
Well block 3567122915328 seems great, but generation doesn't match,
have=9054, want=9096
Well block 3567130849280 seems great, but generation doesn't match,
have=9055, want=9096
Well block 3567159414784 seems great, but generation doesn't match,
have=9056, want=9096
Well block 3567164891136 seems great, but generation doesn't match,
have=9059, want=9096
Well block 3567209717760 seems great, but generation doesn't match,
have=9061, want=9096
Well block 3567210893312 seems great, but generation doesn't match,
have=9062, want=9096
Well block 3674660569088 seems great, but generation doesn't match,
have=9063, want=9096
Well block 3674713247744 seems great, but generation doesn't match,
have=9065, want=9096
Well block 3674727108608 seems great, but generation doesn't match,
have=9066, want=9096
Well block 3674785320960 seems great, but generation doesn't match,
have=9067, want=9096
Well block 3674788827136 seems great, but generation doesn't match,
have=9069, want=9096
Well block 3674792534016 seems great, but generation doesn't match,
have=9068, want=9096
Well block 3674808315904 seems great, but generation doesn't match,
have=9071, want=9096
Well block 3728604938240 seems great, but generation doesn't match,
have=5297, want=9096
Well block 3728635133952 seems great, but generation doesn't match,
have=7598, want=9096
Well block 3728682438656 seems great, but generation doesn't match,
have=7599, want=9096
Well block 3728770461696 seems great, but generation doesn't match,
have=9074, want=9096
Well block 3728819929088 seems great, but generation doesn't match,
have=9073, want=9096
Well block 3820340637696 seems great, but generation doesn't match,
have=9075, want=9096
Well block 3960145862656 seems great, but generation doesn't match,
have=9076, want=9096
Well block 4046161489920 seems great, but generation doesn't match,
have=9077, want=9096
Well block 4046213595136 seems great, but generation doesn't match,
have=9079, want=9096
Well block 4046217637888 seems great, but generation doesn't match,
have=9081, want=9096
Well block 4046217846784 seems great, but generation doesn't match,
have=9080, want=9096
Well block 4046252736512 seems great, but generation doesn't match,
have=9083, want=9096
Well block 4046301515776 seems great, but generation doesn't match,
have=9085, want=9096
Well block 4046302756864 seems great, but generation doesn't match,
have=9084, want=9096
Well block 4046358921216 seems great, but generation doesn't match,
have=9086, want=9096
Well block 4046409486336 seems great, but generation doesn't match,
have=9087, want=9096
Well block 4046414626816 seems great, but generation doesn't match,
have=9088, want=9096
Well block 4148447113216 seems great, but generation doesn't match,
have=7618, want=9096
Well block 4148522024960 seems great, but generation doesn't match,
have=9089, want=9096
Well block 4148539457536 seems great, but generation doesn't match,
have=9090, want=9096
Well block 4455562448896 seems great, but generation doesn't match,
have=9092, want=9096
Well block 4455568302080 seems great, but generation doesn't match,
have=9091, want=9096
Well block 4848395739136 seems great, but generation doesn't match,
have=9093, want=9096
Well block 4923796594688 seems great, but generation doesn't match,
have=9094, want=9096
Well block 4923798065152 seems great, but generation doesn't match,
have=9095, want=9096
Found tree root at 5532762525696


On 06/04/2012 07:49 AM, Hugo Mills wrote:
On Mon, Jun 04, 2012 at 07:43:40AM -0400, Maxim Mikheev wrote:
Hi Arne,

Can you advice how can I recover data?
I tried almost everything what I found on https://btrfs.wiki.kernel.org

/btrfs-restore restored some files but it is not what was stored.
    Can you post the complete output of find-root please?

I have seen this command

--------------------------------------------------
In case of a corrupted superblock, start by asking btrfsck to use an
alternate copy of the superblock instead of the superblock #0. This
is achieved via the -s option followed by the number of the
alternate copy you wish to use. In the following example we ask for
using the superblock copy #2 of /dev/sda7:

# ./btrfsck -s 2 /dev/sd7

-----------------------------------------
but it gave me:
$ sudo btrfsck -s 2 /dev/sdb
btrfsck: invalid option -- 's'
usage: btrfsck dev
Btrfs Btrfs v0.19
    What exact version of the package do you have? Did you compile from
a recent git, or do you have a distribution -progs package installed?
If the latter, what date does it have in the version number?

    Hugo.

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