[Samsung Galaxy Gio GT-S5660] dreuzel:
The observation is correct and in full support of what is claimed.

SD-EXT ext4 is not usable/corrupt Link2sd allows to work on the base SDCARD partiion and is not as powerfull/fast/efficient as Dtremer a2sd or s2e.

link2sd does not care about sd-ext it makes changes to the installation procedure and drives you in an other uncharted area . Given a working media a2sd s2e is a caring setup(99.9% of it ) resulting in a single Linux file system link, there is hardly anything that can go wrong there except potentially a bad Linux port(no evidence of that!) to the arm5/6 cpu.

(fully transparent, keep in mind it Memory versus SDCARD speeds only)

The main and only problem in DTa2sd and S2E is creating a user interface to for a simple Linux instruction!!!)

My statement about CWM v27 not working and corrupting the use of CM7.xxx

is supported additionaly by the error message produced during "CWM.27 ext4 only":

"I: formatting unknown DEVICE" during CWM27 factory reset and explicit formatting(CWM) and additional failing to mount in CM...

clearly an unformatted device can not be mounted afterwards.

As partitioning is made by the same software responsability for formatting and partitioning are handled by the same CWM v27 software Unknown devices are NOT POSSIBLE. And a clear indication for a serious problem.

Partitioning on an external device does not help, it's Factory reset/wipe that destroyes the device,,,, (potentially later ... in a different way .... but it corrupts)

Particle cwm- v26 was more correct at least it did format, possibly not ext4(no favoritism).

due to formatting/partitioning failure success or failure was erraticly dependent

on the ?cm?7.x (previous)formatting that occured insde the rom initialisation, succeding factory reset(temporary hiding the basic problem)....wipe corrupts the sd-ext(faulty behavior). The shorter the route the more workable time credit you get... this problem remains over PCcwmv2 and CWMv27... all versions..

(only tried ext4only)

CM7.1.../cm7.2... conduct very strange afterwards possibly different for everyone individualy(depending on what apps... possibly hidden for a while), on my device; contacts where randomly corrupted, apk parameters where randomly changed .... and many more things undescribable due to erratic behavior. All thinks related to the sd-ext ext4(believed) partition.[part of application data and running cash are on ext4 sd-ext....) in some cases the basic PHONE functionality is attacked....

Re installing an application only temporarily helps since it moves the corruption further.

as you state you do not use a2sd(not corrupt on itself) S2E(not corrupt on itself) and (due to the fact its only a unix link intrinsically STABLE!)

but running on a corrupted disk anything can happen,,,, Only the result of corrupted disk and S2E/A2SD are corrupting and unstable.

this implies that CM7.xxx Gio is advised to run on a bare minimum of applications

if you want to install more non basic stock applications use A STOCK ROM

since it is CWM that corrupts, all customised rom's are affected(using CWM)! if effectively using CWM(factory reset/formatting.)

The above is no disrespect for the writers/modifiers of the software, but in respect of the users. The related bugs should be repaired if we want to continue using CM on a GIO device and make use of its power.

I(we the users?) can not run an os, corrupting data for the sake of the CM os gadgets. No issue of being fan/in favor of custom roms versus stock rom. it all goes about reliability(data and functionality), and performance.....

No disrespect to link2sd intended, but that can easily be used on a stock rom as well... I prefer to relay on something better then emulating win98 FAT 13 year old MS partitions(abandonded by MS pre GIGAbyte period)

(sdcard)

PS if there are multiple versions of CWM it would be nice professional to be able to distinguish between them at run time ec V5.0.2.7.ext4 ///v5.0.2.7.rfs

after all versions and problems this confusion is not helping anything