Getting to RFS to EXT4

[Possum15]

Been awhile since I messed with a phone etc. After rooting how do I get from RFS to EXT4?

 

[jmuru]

Flash this in CWM.

 

[adlebo]

Does it make sense to flash this even if I'm not installing a rom?

 

[Dronak]

While looking around, I came across [CWM 3.0.25+]Rfs2Ext4 and Ext42Rfs which offers flashable files converting both ways, RFS to EXT4 and EXT4 to RFS. If these do the same thing as what jmuru posted, they provide another option (including a way to go back). Just thought I'd mention that.

 

[jmuru]

Those do the same thing and provide you a way to go back.

IMO, if you don't want to flash a ROM, I don't think it's worth converting.

 

[Paul627g]

Does it make sense to flash this even if I'm not installing a rom?

You would have to be running a custom kernel that supports EXT4.

 

[adlebo]

I would like to try for the first time and flash a rom. I'm thinking about the ICS rom. But I'm confused. Do I need to first flash ext4 or will that happen automatically once I flash ICS or Legendary? Also if I want to go back to stock using clockwork do I need to first flash back RFS? Or will clockwork do that automatically when restoring my backup? Thanks!

 

[jmuru]

If going to ACS ICS, you don't need to flash the EXT4 script separately, as it converts to EXT4 automatically during the installation. Same for Legendary.

Not sure about going back to Stock using CWM, as I usually just ODIN it back and that doesn't require any flashing.

 

[adlebo]

And I gather all these "kernel" and "modem" stuff also come along automatically?

 

[adlebo]

If going to ACS ICS, you don't need to flash the EXT4 script separately, as it converts to EXT4 automatically during the installation. Same for Legendary.

Not sure about going back to Stock using CWM, as I usually just ODIN it back and that doesn't require any flashing.

I'm wondering for the future how would I know if the roms go automatically to ext4? Because I don't recall seeing that info on the rom opening pages. Is that basically standard with all roms?

 

[jmuru]

The kernel comes along automatically, though you can change it later if you want to for whatever reason (usually cause some are more overclockable than others). Modems do not come with the ROMS and need to be updated manually, mostly because each modem works with each phone differently, meaning that the latest modem isn't necessarily the one that will give your phone the best reception, so it's worth experimenting a little, as you can use any modem with any ROM, pretty much.

 

[jmuru]

I'm wondering for the future how would I know if the roms go automatically to ext4? Because I don't recall seeing that info on the rom opening pages. Is that basically standard with all roms?

No, it's not standard, but some will say they're EXT4-based, though you can usually switch back to RFS on those if you want to.

 

[Windfrenzy]

Even though Rfs2ext4.zip is supposed to run a backup, don't rely on it and run your own. I had the lockup on boot issue and had to wipe and reinstall everything. I'm new to flashing roms too, so thought I'd post this. I've read that having a preexisting nandroid backup fixes the md5 error that I experienced. I'm ext4 now though, so got where I want to be.