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Basically, every time I go to clockwork recovery and try to wipe data and cache, I get this error.
cant mount block /dev/block/mmcblk0
I have reformatted many times my sd, even with rom manager but with no luck.
Still get the same error.
From what I understand, if I flash a rom that supports aps2sd+ then I cant install any apps from market because it cannot mount my sd card.
You probably have an ext2 partition which clockwork can't handle. I had to convert mine to ext3 to be able to format it in recovery. Apps were still being saved there, though.
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jastonas said:
Basically, every time I go to clockwork recovery and try to wipe data and cache, I get this error.
cant mount block /dev/block/mmcblk0
I have reformatted many times my sd, even with rom manager but with no luck.
Still get the same error.
From what I understand, if I flash a rom that supports aps2sd+ then I cant install any apps from market because it cannot mount my sd card.
Click to expand...
Click to collapse
I had this problem while my ext was ext4. I had a ROM that was OK using ext4 but clockwork wouldn't back it up, so I reformated SD with ext3.
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pexon said:
I had this problem while my ext was ext4. I had a ROM that was OK using ext4 but clockwork wouldn't back it up, so I reformated SD with ext3.
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Click to expand...
Click to collapse
Everything ok now....
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After I read through several hundred pages on different topics but all treating the sd-ext one or the other way, I still think, that my problem has another twist.
I recently rooted my phone and I'm running Leedroid 3.0.8.2 APSD with S-On. Now everything runs perfectly: quick system info shows my apsd partition, apps are saved there (also new ones I installed after flashing the rom), titanium backups them and my phone runs smoothly.
But, clockworkmod cannot mount the sd-ext, cannot backup it nor restore it. And root explorer cannot find it.
I tried to format the sd card and remaking the partitions. I tried all other solutions I found on xda, but the problem remains.
Can anyone help?
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hi,
seems that your problem is your CWM version, already read a problem's like this.. buggy recovery.
look into devlopment thread recovery cwm, think this issue is related there.
depends the version u got
http://forum.xda-developers.com/showthread.php?t=1112658
be aware that to flash new recovery, best way is to be s-off
hope this help
How did you format it? With Linux or the Rommanager,...? Is this problem new?
Maybe you have to flash a new version of the Clockworkmod. Therefore you would have to S-off the device.
Please give us more information.
I made the partions using MiniTool Partition Wizard on Windows. I have cwm 2.5.0.7. But the first time I made the partitions I used the rommanager.
The thing is, that the root explorer doesn't recognize the sd-ext either. I will try to flash a new recovery though. Can't I use unrevoked for this too?
The format of the sd-ext partition is ext3.
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After the first partitioning, I zipalingned the sd-ext using the recommended tool by Leedroid. But after that I was stuck on the splash screen, so I remade the partitions using MiniTool.
Then I was able to flash the rom and get my phone going again, but had the problem with sd-ext.
A week later, I wiped the sdcard anew and tried again, but the problem persisted.
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I had a similar problem. I solved it by flashing the alignment patch twice (first time: splash screen freeze, second time: bootup and mountable in recovery)
Goodluck
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Please try to format the card with linux, the rommanager or the cwm. It is only possible to flash another recovery when you are s-off as far as I know.
You can also backup the data with linux. Copy the files to the card back and restore the ext in the recovery otherwise it won't work. I would also backup the apps with TB before just to be on the safe site.
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Hi don 't use alignment zip iit was design for typical rom (data2ext ) 'use instead gpartes but since your rom with a2sd or whtever with ext boot means that U got a working ext fs... To see what is stored in ext use quick system info or browse to system/sd directory.
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Hello!
I think, your ext is working well. If its not working, you should not be able to use the Rom as you described. As written by other user, look with root explorer into the directory /system/sd. Here you see the content of the ext-partition. You won't see a folder like /sd-ext in a file explorer. On a running phone the Fat32 partition of sd-card is accessable as /sdcard, the ext-partition as /system/sd .
After you mount your sd-ext in recovery, look into the mounts section, there you should see a line called unmount sd-ext - if you see this, the ext-partition should be successfully mounted. In recovery with mounted sd-ext you should be able to access ext-partition with adb, mounted as /sd-ext
Hope what I have written makes sense
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Ah, I always thought that I should look for a folder called sd-ext. I know think that the problem lies with the cwm and the fact that v2.5.0.7 doesn't recognize my sd-ext partition, probably because it is ext3. The sd-ext partition isn't and cannot be mounted in recovery.
You think flashing a new recovery could help? And if yes, what is the best way to flash it when s-on?
Thanks!
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I would try to format the card again (with linux or the rommanager, cwm).
You have to be S-Off to flash a new recovery as I told you before.
Therefore I would first try to format the sd card again (not with windows).
http://forum.xda-developers.com/showthread.php?t=1112658 if you want to flash a new version (You would have to s-off the device. It could be that you have to install a ruu and reroot the device for that procedure, because alpharev is not able to install the hboot with every rom)
Taiko0 said:
Ah, I always thought that I should look for a folder called sd-ext. I know think that the problem lies with the cwm and the fact that v2.5.0.7 doesn't recognize my sd-ext partition, probably because it is ext3. The sd-ext partition isn't and cannot be mounted in recovery.
You think flashing a new recovery could help? And if yes, what is the best way to flash it when s-on?
Thanks!
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Click to expand...
Click to collapse
I Use the same recovery like u. No problems with ext-partition (ext3) here. I don't believe its your recovery, I think its your sd-card or partition. Download gparted boot cd, burn it to cd, boot it. Delete at first all partitions on the sd-card, kick apply! Then build new partitions. There are a lot videos in YouTube about using gparted if necessary.
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anderl78 said:
I Use the same recovery like u. No problems with ext-partition (ext3) here. I don't believe its your recovery, I think its your sd-card or partition. Download gparted boot cd, burn it to cd, boot it. Delete at first all partitions on the sd-card, kick apply! Then build new partitions. There are a lot videos in YouTube about using gparted if necessary.
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Click to expand...
Click to collapse
Backup your card first lol...
BigMrB said:
Backup your card first lol...
Click to expand...
Click to collapse
Yep!
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I tried using CWM to do the partitions, but couldn't find the command. Either way, I think I leave it at that, at least until the next update of Leedroid, as the Rom, TB and everything else works perfectly.
If any of you has another idea... Btw, does it matter which class of sdcard one has?
Thanks!
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Taiko0 said:
I tried using CWM to do the partitions, but couldn't find the command. Either way, I think I leave it at that, at least until the next update of Leedroid, as the Rom, TV and everything else works perfectly.
If any of you has another idea... Btw, does it matter which class of sdcard one has?
Thanks!
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Click to expand...
Click to collapse
Gparted is good to use... No class shouldn't make a difference for partitioning on speed of data transfer etc
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Solved
Finally solved my problem! I s-offed my desire and flashed AmonRa, did the sd-ext repair and got it going! thanks all of you for your support!
So i have a case. When i try to format/ reset factory settings via recovery i get this strange error that my sd-ext can't be formatted because of the /dev/block/mmcblk0 file existing. I don't know what to do. I have a stock sd card 2gb. Windows says that its 1.86GB. Any help?
Backup sdcard contents first.
Then don't format it from recovery. Just boot up the OS and format the memory card. But doing so deleted the extra partition also. It creates entire fat partition. Again you will have to repartition your sdcard to create ext again.
And if you still face errors, then there is a chance of sdcard being corrupted.
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I've formatted it many times. Even downloaded mini tool partition wizard home edition(gpardted thingy windows version). Its still 1,86GB there's no partitions. Only a FAT32 card.
For a 2GB card you can only use around 1.8x GB . So I think it is correct. I just thought you had issue in formatting ext partition.
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hang on... it doesn't allow you to format sd-ext because it doesn't exist.. EXT is a linux format, if your entire SD-Card is FAT-32 there's no EXT to format....
bortak said:
hang on... it doesn't allow you to format sd-ext because it doesn't exist.. EXT is a linux format, if your entire SD-Card is FAT-32 there's no EXT to format....
Click to expand...
Click to collapse
It says that some file DOES exist.
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quemmy said:
It says that some file DOES exist.
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Click to expand...
Click to collapse
If you haven't made an EXT partition on your SD-Card then you will not be able to format SD-EXT because there is nothing to format... it's simple logic ... you can't delete something that doesn't exist
It said it does exist. Well, meh. I bought a new card. 8gb kingston ^^ 1gb ex3 partition
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I have a Kingston 4gb class4 sdhc card.I want to install galaxy nexus by JM.so how to format card for how much size.can we alter size in future means if another Rom needs more size than this?if yes then how can we?can we delete partition in future?
What is mtd partitioning?
Iam using cwm4.0
Thanks in advance
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for installing galaxy nexus by JM,i created 512Mb external partition with 0 swap size.You can create SD card partition from recovery.It can be deleted whenever you want by formatting the SD card.
For MTD partitioning you can see this link.
http://forum.xda-developers.com/showthread.php?t=1233340
for galaxy nexus by JM 145Mb system partition and 20Mb cache size should be enough.
If I create 512 mb with 0 swap size SD card partion does other any custom rom will automatically detect it?
Ext3 or ext4 which one to choose for partitioning?
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I might be wrong but I think CWM recovery creates ext3 partition on your SD card,so that would do.
And I have used the same 512Mb partition for rempuzzle rom and for galaxy nexus by JM as well.But when I installed MIUI gingerbread it didnt seem to work,coz it was moving apps to the unpartitioned space.So I think it should work only for the roms for which a partition is required.I might be wrong though.
Correct me if Iam wrong that means a Rom which does not us sd-ext feature will not boot or will have some problem???
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Ankurcul said:
Correct me if Iam wrong that means a Rom which does not us sd-ext feature will not boot or will have some problem???
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Click to expand...
Click to collapse
If a ROM doesn't use the EXT partition there is no problem.
You can even flash DarkTremor A2SD to get the same functionality.
K...thanks guys...can someone provide a link for darktremor a2sd
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Hey everyone,
I have recently rooted and S-OFF my HTC Desire, using Revolutionary.
I have partitioned my SD card and installed Mounts2SD application from Google Play store. Busybox and Init.d seem to be configured ok but still, Mounts2SD doesn't seem to work and I can't get my applications to use the 1GB partition off memory that I have dedicated on my SD card.
Some help would be much appreciated!!
Thanks a lot in advance...
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1. How did you partition your sd-card?
2. Did you configure m2sd correctly?
3. Are you one of those guys who think that the internal memory itself will be larger, thus expecting to see "1148 mb" of internal storage in settings? You will still see 148 mb, but the partition will be there, doing its job.
4. What did you move to sd-ext? Try moving app and dalvik cache.
Hello,
1. To partition my SD card, I booted the phone in recovery and I partitioned it from there. And I know it's done because my SD's memory is now 1GB less.
2. All the boxes in m2sd application are checked. It doesn't let me change anything.
3. I didn't expect to see the internal memory larger.
4. From what I read, I thought that after m2sd is configured, it will move the applications itself to sd-ext. So by still seeing 126/148MB of my internal memory occupied, I suppose this didn't happen. How can I move an app manually??
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panos.c said:
Hello,
1. To partition my SD card, I booted the phone in recovery and I partitioned it from there. And I know it's done because my SD's memory is now 1GB less.
2. All the boxes in m2sd application are checked. It doesn't let me change anything.
3. I didn't expect to see the internal memory larger.
4. From what I read, I thought that after m2sd is configured, it will move the applications itself to sd-ext. So by still seeing 126/148MB of my internal memory occupied, I suppose this didn't happen. How can I move an app manually??
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Click to expand...
Click to collapse
In the Content section, select "Application" and "Dalvik Cache".
What recovery do you use?
I tried checking the dalvik cache and also data, but not only nothing changes, also every time I reboot the phone it goes back to the original settings: only application is checked....
My revolutionary is RA-desire-v2.0.1
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Sorry that's my recovery, not my revolutionary...
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panos.c said:
Sorry that's my recovery, not my revolutionary...
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Click to expand...
Click to collapse
Ok. That explains it. Your sd-ext wasn't done properly. Check my guide for correctly partitioning your sd-card :
http://forum.xda-developers.com/showthread.php?p=37383522#post37383522
Then use the mounts2sd flashable zip. It's safer.
http://forum.xda-developers.com/showthread.php?t=1342387
I have followed your guidelines and installed 4Ext recovery. Then i partitioned my SD card with that and i installed m2sd using the flashable zip.
Then still m2sd not working and i'm still getting the annoying low space notification. So i installed FreeSpace and it seems like i don't have an ext partition. The only things it shows there are:
- Cache 40MB
- Data 147MB
- SD-card 2731MB
- System 250MB
My SD card is 3.66GB. So from that, the conclusion is that the partition was created but the system cannot access it..?? What could be wrong?? How should i proceed? Just try to partition the SD again??
Thanks a lot
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panos.c said:
I have followed your guidelines and installed 4Ext recovery. Then i partitioned my SD card with that and i installed m2sd using the flashable zip.
Then still m2sd not working and i'm still getting the annoying low space notification. So i installed FreeSpace and it seems like i don't have an ext partition. The only things it shows there are:
- Cache 40MB
- Data 147MB
- SD-card 2731MB
- System 250MB
My SD card is 3.66GB. So from that, the conclusion is that the partition was created but the system cannot access it..?? What could be wrong?? How should i proceed? Just try to partition the SD again??
Thanks a lot
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Click to expand...
Click to collapse
Yes, partition your sd-card again.
1gb goes to your sd-ext. It's normal for freespace to show 2731 mb.
For some reason my phone couldn't access SD-ext, even if it was partitioned correctly and in recovery it could see it. So i wiped everything and istalled a new ROM. Now it works perfectly!
Thanks a lot for the assistance!
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