how come when i format my sd card to ext2 3 or 4 with linux it refuses to mount and when i try to use ra 1.8 to upgrade ext2 to ext3 it fails? seriously, wtf. id like to use a jfs since they tend to perform better.
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I've been trying tirelessly to get darktremor a2sd to work on my phone for a month. I've tried using AmonRa partitioning to ext3 and ext4, I've tried manually partitioning, I've made sure the ROMs support it, I've done everything. Except partitioning through Linux (Ubuntu). Today I noticed that when I try to mount the ext partition, whether ext3 or 4, in CWM or AmonRa, it says it can't mount the mmcblk1p2 (no such file). But when I run the check in Terminal for a2sd, it says it recognizes the ext but can't mount it. So I tried partitioning through ubuntu, sure enough I format improperly (don't know how) and now the card is unrecognizable by my phone, ubuntu and windows 7, meaning I can't properly format it.
So, if anyone can fill me in on why this just doesn't seem to work for me, please let me know what I'm doing wrong. i just want some damn apps2sd and a functioning ext partition.
Hey fellows,i need a good application for formating my SDcard ,i posted awhile ago about slow writing speed of my SDcard with no solution,so i want to format and re-partition it...
So what say you? (p.s. i already tried Gparted/Recovery/Partition Magic)
You can format on your own phone or using the recovery. If you want a program, the SDCard Formatter from Panasonic is the oficial program to format SD cards.
Recovery is easiest option but I think it only does ext3, not too sure though. I use Easeus which is pretty good, but can't do ext4. Use gparted which is the best tool for the job.
You can try MiniTool Partition Wizard which is free.
And Amon RA 2.0.0/2.0.1 (not sure of older versions) supports EXT4 also but first you'll have to format SD with EXT2 then convert EXT2>>EXT3 and then EXT3>>EXT4.
Hope this helps...
Alright, I'm running darktremor a2sd with an ext4 partition in decks 1.2 and loving it. I'm thinking about messing with synergy and know that I would need an ext3 not ext4 partition to run dta2sd. In amon ra you can upgrade from ext2 to ext3 and 3 to 4. Is there a way to "downgrade" to ext3 without wiping and repartitioning?
Thank you in advance for any help.
Not in any recovery that we have available. I thought I read at one point that you can set SD partitions in Linux, but I don't know if you downgrade in that either.
ok, thanks, thats kind of what i thought.
another question for you or those in the know......i'm pretty sure since i converted my ext3 to ext4 and resetup dta2sd that my temperatures have been getting considerably hotter than before. people suggest that that ext4 isn't the best for the life of an sd card because of extra writing going on.....could this extra work also be contributing to higher temps?
I've got my SD partitioned to ext4 on CM7 with s2e and I've haven't noticed a temperature change, but it sounds possible.
Might be a stupid question.
Well here's the deal i partitioned my sd card to ext4 (i think i'm not sure how i can find it out if it is ext3 or ext4). I was reading that ext2 was faster and quite better than ext3 or ext4 so i was thinking is there any easy way to deconvert from ext4 to ext2. What is the best way to do this preferably without loosing any data from sd card or the partition?
And how can i find out easily what partition my sdcard is ext3 or ext4?
Im not sure where you get that information but devs wouldn't recommend EXT4 partition if its gonna slowdown the performance of their roms.
I bet gparted can tell what type of ext partition you have and I bet there are other ways to find out... You can flash 4Ext Recovery and that will show you those information as well.
via xda app
4ext recovery converts partitions but only between ext3 and ext4 without data loss. Al though I am scratching my head, where did you read that ext2 is faster than others?
Ext4 has more features than Ext3 and Ext2, main advantage is journaling which gives improved performance and reliability. The only downside with ext4(also ext3) is that the SD Card wears out faster since it can perform more read/write activities. If I was you I would keep things the way they are.
deadlyboss01 said:
4ext recovery converts partitions but only between ext3 and ext4 without data loss.
Click to expand...
Click to collapse
I know but I believe it would be able to tell what type of Ext partition the sd card has
via xda app
I saw something about it on androidforums.com and somewhere else i can't remember where.
There few people said that after going from ext2 to ext3-4 the rom that they had became a little laggy and it said also that some kernel dev said to use ext2 rather than ext3-4.
Also said the same thing you deadlyboss01 said about the sd card wearing out sooner.
Is it maybe silly to use ext2 if i already have ext4?
And if i set up 4ext recovery can i restore nand backups from cwm?
And if i set up 4ext recovery can i restore nand backups from cwm?
Click to expand...
Click to collapse
I believe it can since 4ext recovery is based on cwm but better post the question on the 4ext thread to get an accurate answer. Sorry im not that sure.
via xda app
It seem that you are quite adamant. Have you personally experienced these lags?Also, I had the impression that kernel devs focused more on ext3/ext4. Nevermind, CWM is indeed compatible with 4ext recovery as Stankyou said.
No i personally have not had these lags but it seems that i'm just going to stick to 4ext and try to flash the 4ext recovery and check that out
Thanks to this thread(and others), i got some balls and knowledge. And i've installed, 4eXT Touch Recovery and then converted my ext3 partition to ext4 with 4eXT, way to easy. Needless to say, that Recovery is awesome! Thanks People! !
I also read this on ext2 being better and was confused, some guy had a htc incredible s and experienced lag with ext4 and not on ext2.
Well, i also see alot of devs using ext4 and now this thread... think this is quite simple, Use ext4 if the rom supports it.
I have been reading up on the differences between ext2 and ext4. Apparently ext2 is faster and causes lesser wear on the SD card. Can I use an ext2 SD partition instead of ext4 without issues on CM 7.2?
Or is it really better to format ext4 on SD since CM uses it on internal memory?
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hey fish,
if you want to use cyanogenmod 7 ( 7.1 / 7.2 ) u'll have to format your second partition to ext 4 format, another formats are not accepted.
Strange.
I've used an ext2 partition on CM 7.1 and currently using ext3 on CM7.2 dt app2sd is enabled and works...
Don't know about the speed and the wear (wear????) on the SD. Speed seems fine, I find apss load a bit faster from SD than phone memory. But then i have a class 10 card.
Hmm, I thought one of the reasons ext4 was developed was to make it faster than ext3, and ext3 is faster than ext2...
im using CM7.2 and my sdcard partition was ext2, and it doesnt matter
i can install darktremor, and anything,,
anybody experienced read/only 2nd ext4 partition?