Grazie Gynlemon, vedro un po come fare.
@dario2106, mi dispiace smentirti, ma nel nexus (come molti altri dispositivi samsung) l'imei è in una partizione della nand. È ovviamente nascosta per ovvie ragioni, ma esiste, ed è scrivibile. Se proprio non ci credi prova a montare /dev/block/platform/omap/omap_hsmmc.0/by-name/efs in /tmp.
Come puoi vedere è una partizione in ext4 come le altre (rw, exec) da 20MB.
Dentro ci sarebbero anche un file di backup e un log, ma non riesco a capire la data, perche dopo immersa la m/b nell'acqua distillata si è scaricata la batteria tampone e mi da come data e ora 01/01/2000 00:01
EDIT: ecco il log:
codice:
/tmp/prova # cat nv.log
Sat Jan 1 00:00:36 2000: nv_data.bin does not exist.
Sat Jan 1 00:00:36 2000: default NV restored.
Sat Jan 1 00:00:37 2000: default NV restored.
Sat Jan 1 00:07:11 2000: MD5 is turned off on 0
Sun Jun 10 21:31:37 2012: NV data back-up begin.
Sun Jun 10 21:31:38 2012: secondary NV built.
Sun Jun 10 21:31:38 2012: NV data back-uped.
Sun Jun 10 21:31:38 2012: MD5 is turned on.
Mon Jun 11 15:56:05 2012: MD5 is turned off on 0
Mon Jun 11 15:56:43 2012: NV data back-up begin.
Mon Jun 11 15:56:43 2012: secondary NV built.
Mon Jun 11 15:56:43 2012: NV data back-uped.
Mon Jun 11 15:56:43 2012: MD5 is turned on.
Mon Jun 11 23:12:32 2012: MD5 is turned off on 0
Mon Jun 11 23:13:44 2012: NV data back-up begin.
Mon Jun 11 23:13:44 2012: secondary NV built.
Mon Jun 11 23:13:45 2012: NV data back-uped.
Mon Jun 11 23:13:45 2012: MD5 is turned on.
Mon Jun 11 23:24:35 2012: MD5 is turned off on 2
Mon Jun 11 23:32:11 2012: MD5 is turned off on 2
Mon Jun 11 23:32:57 2012: MD5 is turned off on 0
Mon Jun 11 23:33:26 2012: NV data back-up begin.
Mon Jun 11 23:33:26 2012: secondary NV built.
Mon Jun 11 23:33:26 2012: NV data back-uped.
Mon Jun 11 23:33:26 2012: MD5 is turned on.
Mon Jun 11 23:39:01 2012: MD5 is turned off on 0
Mon Jun 11 23:39:06 2012: NV data back-up begin.
Mon Jun 11 23:39:06 2012: secondary NV built.
Mon Jun 11 23:39:06 2012: NV data back-uped.
Sat Jan 1 00:00:06 2011: NV data back-up begin.
Sat Jan 1 00:00:06 2011: secondary NV built.
Sat Jan 1 00:00:06 2011: NV data back-uped.
Sat Jan 1 00:00:06 2011: MD5 is turned on.
Sat Jan 1 00:00:59 2011: /data/radio/nv_data.bin does not exist.
Sembra che non l'abbia proprio perso il file... Ma non lo trova :S
EDIT2:
Nel cell ho ben 3 file nv_data.bin, tutti diversi...
codice:
/tmp/prova # md5sum nv_data.bin
4add2d508658e79a19a3b02165738045 nv_data.bin
/tmp/prova # md5sum .nv_data.bak
b1d4fd770187eb40bac3c5a3b4aa8842 .nv_data.bak
/tmp/prova # cd /data/radio/
/data/radio # md5sum nv_data.bin
536f714e07e4ddc8a300ee65cc11902e nv_data.bin
EDIT3:
Risolto scrivendo in /data/radio il file contenuto nella partizione EFS
codice:
/data/radio # ls -al
drwxrwxr-x 3 radio radio 4096 Dec 16 21:49 .
drwxrwx--x 24 system system 4096 Dec 16 21:51 ..
drwxrwxr-x 2 radio radio 4096 Dec 16 21:49 log
-rwx------ 1 radio radio 2097152 Dec 17 11:05 nv_data.bin
-rwx------ 1 radio radio 32 Dec 17 11:05 nv_data.bin.md5
/data/radio # mv nv_data.bin nv_data.bin.old
/data/radio # mv nv_data.bin.md5 nv_data.bin.md5.old
/data/radio # cp /tmp/prova/nv_data.bin nv_data.bin
/data/radio # cp /tmp/prova/nv_data.bin.md5 nv_data.bin.md5
/data/radio # umount /tmp/prova
/data/radio # reboot