 Uh-oh, Wiped My /dev/mtdblock1 Device, ..woohoo! fixed! |
  |
 May 8 2007, 02:13 AM
Post
#1
|
|
 Group: Admin Posts: 3,277 Joined: 29-July 04 From: Cambridge, England Member No.: 4,149  |
I installed Angstrom spitz on my 3100 (which uses the microdrive for most things) and wanted to make use of unused flash and I think I'd committed a massive cockup!
I accidentally formatted /dev/mtdblock1, which I think is the emergency recovery partition. My Z is alive, running Angstrom OK, so I can put the data back into the partitions. I'm going to keep it powered up on charge so it won't try and reboot! Can anyone confirm which partitions are which - mtdblock0 to 3, and perhaps let me have the data that should go into the critical ones! thanks in desperation 
|
 |
 
|
|
May 8 2007, 02:41 AM
Post
#2
|
|
 Group: Members Posts: 1,014 Joined: 4-January 05 From: Enschede, The Netherlands Member No.: 6,107 |
QUOTE(speculatrix @ May 8 2007, 10:13 AM) I installed Angstrom spitz on my 3100 (which uses the microdrive for most things) and wanted to make use of unused flash and I think I'd committed a massive cockup! I accidentally formatted /dev/mtdblock1, which I think is the emergency recovery partition. My Z is alive, running Angstrom OK, so I can put the data back into the partitions. I'm going to keep it powered up on charge so it won't try and reboot! Can anyone confirm which partitions are which - mtdblock0 to 3, and perhaps let me have the data that should go into the critical ones! thanks in desperation  In case anyone is wondering how to get that to speculatrix: CODE dd if=/dev/mtdblock1 of=outfile; gzip outfile and put outfile.gz online somewhere |
|
|
|
|
May 8 2007, 03:44 AM
Post
#3
|
|
|
Group: Admin Posts: 3,277 Joined: 29-July 04 From: Cambridge, England Member No.: 4,149 |
QUOTE(koen @ May 8 2007, 11:41 AM) In case anyone is wondering how to get that to speculatrix: CODE dd if=/dev/mtdblock1 of=outfile; gzip outfile and put outfile.gz online somewhere nice one, thanks. BTW, on the 3100, which mtdblock partitions are which? I've googled around and there's no one definitive place... where is the power-on-self-test stuff and maybe the D+M menu and OK menu stuff? Didn't some older Zauruses have some NOR memory where the Arm CPU starts up? |
|
|
|
|
May 8 2007, 03:52 AM
Post
#4
|
|
 Group: Members Posts: 2,350 Joined: 30-July 06 Member No.: 10,575 |
Does it matter if I have pdaXrom with uBoot? If it's OK, I'll post it ASAP.
|
|
|
|
|
May 8 2007, 03:59 AM
Post
#5
|
|
|
Group: Members Posts: 2,350 Joined: 30-July 06 Member No.: 10,575 |
Here it is. No idea if it will help, but hey.
Attached File(s)
|
|
|
|
|
May 8 2007, 05:50 AM
Post
#6
|
|
|
Group: Admin Posts: 3,277 Joined: 29-July 04 From: Cambridge, England Member No.: 4,149 |
QUOTE(Capn_Fish @ May 8 2007, 12:59 PM) Here it is. No idea if it will help, but hey. thanks for that... I'll grab a copy... whatever happens I'd rather put that on my Z than leave it as it is, at least if it resets there'll be something there, I'm panicky that something will crash and my Z will be totally bricked. |
|
|
|
|
May 8 2007, 06:11 AM
Post
#7
|
|
|
Group: Admin Posts: 3,277 Joined: 29-July 04 From: Cambridge, England Member No.: 4,149 |
ah yes, your mtdblock1 file is u-boot...
CODE strings /home/paulm/download/zaurus/mtdblock1.pdax | more @ #! @c P TSIL 0a0,0 0b0, 0n0 @ c! !1C " U-Boot 1.1.4 (Sep 15 2006 - 11:38:19) nand e03f<ij??ji<f30ef30e?ji<<ij?e03f I'll put it there anyway... scary! |
|
|
|
|
May 8 2007, 07:44 AM
Post
#8
|
|
|
Group: Admin Posts: 3,277 Joined: 29-July 04 From: Cambridge, England Member No.: 4,149 |
CODE root@c3100:/media/card/zaurus/rescue$ wc -c /dev/mtdblock1 7340032 /dev/mtdblock1 root@c3100:/media/card/zaurus/rescue$ ll drwxr-xr-x 2 root root 4096 Jun 7 15:00 ./ drwxr-xr-x 6 root root 4096 Jun 7 14:59 ../ -rwxr-xr-x 1 root root 7340032 Jun 7 15:16 mtdblock1.pdax root@c3100:/media/card/zaurus/rescue$ cat mtdblock1.pdax > /dev/mtdblock1 root@c3100:/media/card/zaurus/rescue$ md5sum mtdblock1.pdax da5d4d27561e0ccd8288333191440aba mtdblock1.pdax root@c3100:/media/card/zaurus/rescue$ md5sum /dev/mtdblock1 da5d4d27561e0ccd8288333191440aba /dev/mtdblock1 well, this is much safer. does Angstrom install replace contents of mtdblock1? I suspect my Z is now an odd mix of pdaX boot with Angstrom runtime. --edit-- still hoping someone with Sharp or Cacko on C3100 can supply their mtdblock1.gz file, thanks! |
|
|
|
|
May 8 2007, 08:37 AM
Post
#9
|
|
 Group: Members Posts: 1,837 Joined: 31-December 05 From: Illinois USA Member No.: 8,821 |
CODE dd if=/dev/mtdblock1 of=outfile; gzip outfile 14336+0 records in 14336+0 records out This is from my Sharp/Cacko C3100 (outfile.gz is inside outfile.zip) EDIT: I'm not sure how this will work, but I followed koen's instructions exactly, "as root" in konsole. Looking at Capn_Fish's file with winrar, it contains .\outfile Mine is slightly different, as it contains outfile This post has been edited by Jon_J: May 8 2007, 09:07 AM
Attached File(s)
|
|
|
|
|
May 8 2007, 02:39 PM
Post
#10
|
|
|
Group: Admin Posts: 3,277 Joined: 29-July 04 From: Cambridge, England Member No.: 4,149 |
QUOTE(Jon_J @ May 8 2007, 05:37 PM) I'm not sure how this will work, but I followed koen's instructions exactly, "as root" in konsole. Looking at Capn_Fish's file with winrar, it contains .\outfile Mine is slightly different, as it contains outfile thanks for that, I will give it a go. I might even dare try rebooting my Z then. 
|
|
|
|
|
May 10 2007, 04:29 AM
Post
#11
|
|
|
Group: Admin Posts: 3,277 Joined: 29-July 04 From: Cambridge, England Member No.: 4,149 |
uh-oh, I needed to reboot my Z and now it is totally dead... not even the charge light comes on, removed the battery and left it for a long time too. I am really scared that I have bricked it completely... feelings of panic and fear, like WTF do I do next (and nervous about making things worse).
|
|
|
|
|
May 10 2007, 04:41 AM
Post
#12
|
|
|
Group: Members Posts: 369 Joined: 6-September 04 From: Brisbane, Australia Member No.: 4,488 |
Can you get into the Fn+D+M menu? I think we were pretty certain it was in rom, so it shouldn't get toasted if the flash was wiped...
|
|
|
|
|
May 10 2007, 05:25 AM
Post
#13
|
|
|
Group: Admin Posts: 3,277 Joined: 29-July 04 From: Cambridge, England Member No.: 4,149 |
QUOTE(pelrun @ May 10 2007, 01:41 PM) Can you get into the Fn+D+M menu? I think we were pretty certain it was in rom, so it shouldn't get toasted if the flash was wiped... YES, thank God... and thank you Trisoft for providing a convenient SYSTC310.dbk.zip file!!! |
|
|
|
|
May 10 2007, 05:33 AM
Post
#14
|
|
|
Group: Admin Posts: 3,277 Joined: 29-July 04 From: Cambridge, England Member No.: 4,149 |
restoring now... oh well, bye bye Angstrom, hello Sharp ROM :-)
--edit-- Bye bye Sharp, hello OpenZaurus 3541! Now I hope to try getting TomTomGo to work on it. BTW, I do not think the zaurus has a separate ROM. I've googled around a lot to try and understand the 3x00 memory layout but what exists is a bit patchy. My guess is that the CPU initialisation stuff, zaurus power-on-self and D+M menus etc are in a locked flash segment at the beginning of flash (hopefully it's hard-wired as read only), then there's the OK menu in mtdblock0, the user kernel and initrd (uboot on pda, altboot on OZ/Angstrom etc) in mtdblock1, then root in block2 and home in block3? |
|
|
|
|
May 10 2007, 06:55 AM
Post
#15
|
|
|
Group: Members Posts: 369 Joined: 6-September 04 From: Brisbane, Australia Member No.: 4,488 |
Woo! It lives again!
QUOTE(speculatrix @ May 10 2007, 01:33 PM) BTW, I do not think the zaurus has a separate ROM. I'm looking at the 64mbit P2ROM on the schematic right now. 
|
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 21st May 2013 - 07:53 AM |