Status: working!
The tar file has some binaries which work.
If you aren't a developer you probably don't care about this.
I'm working on getting FUSE working on my P500, and thought I'd share my experiences. FUSE is a mechanism to mount lots of filesystems (like fusecompress, sshfs, or unionfs) without needing to recompile the kernel or patch the kernel. My need is to have a writeable /system that can be 'cleaned' back to the original state with the push of a button.
The following details my initial attempt. I've had better success as detailed here:
http://forum.xda-developers.com/showpost.php?p=14619814&postcount=3
Steps:
1) get the kernel source and build it with the FUSE module enabled. this provides fuse.ko which should be usable on virtually all 2.6.32.xx kernels for the P500
2) get the fuse userspace libraries and compile. I had to use a very old version (2.4.2) because newer versions need support for statvfs which bionic doesn't have. I had to patch in apthread_rwlock which isn't in bionic for froyo, and a few other cleanups.
3) get a fuse filesystem to test. I'm using unionfs-fuse. I had to use a very old version (0.11) to go with my very old libfuse from (2)
4) Try it out:
* move the files from 1-fuse.ko, 2-fusercompress, and 3-unionfs to the p500
* become root
* make sure all files are executable and in the PATH
* load the kernel module: insmod fuse.ko
* try to use fuse: ./unionfs --roots=/sdcard /mnt/asec
The last step seems to work, but ps shows no unionfs process.
Next I try with debug enabled:
* ./unionfs --roots=/sdcard /mnt/asec -d
This gives a segfault
Lastly I try with strace to find the segfault:
* strace -ff -F ./unionfs --roots=/sdcard /mnt/asec -d
now the code no longer segfaults, and the mount works.
So my goal now is to figure out why it segfaults when not run via strace.
I found someone who got this working on the desire:
http://forum.xda-developers.com/showthread.php?t=763908
(I tried their binaries just for fun, but they're not compatible with the P500)
They did it by using scratchbox which imports glibc. I was trying to do a native bionic build, but it may be easier to try scratchbox, as it would let me have a modern libfuse. If I can't figure out this segfault, then I'll go there next. Has anyone tried building for the P500 using scratchbox?
The tar file has some binaries which work.
If you aren't a developer you probably don't care about this.
I'm working on getting FUSE working on my P500, and thought I'd share my experiences. FUSE is a mechanism to mount lots of filesystems (like fusecompress, sshfs, or unionfs) without needing to recompile the kernel or patch the kernel. My need is to have a writeable /system that can be 'cleaned' back to the original state with the push of a button.
The following details my initial attempt. I've had better success as detailed here:
http://forum.xda-developers.com/showpost.php?p=14619814&postcount=3
Steps:
1) get the kernel source and build it with the FUSE module enabled. this provides fuse.ko which should be usable on virtually all 2.6.32.xx kernels for the P500
2) get the fuse userspace libraries and compile. I had to use a very old version (2.4.2) because newer versions need support for statvfs which bionic doesn't have. I had to patch in apthread_rwlock which isn't in bionic for froyo, and a few other cleanups.
3) get a fuse filesystem to test. I'm using unionfs-fuse. I had to use a very old version (0.11) to go with my very old libfuse from (2)
4) Try it out:
* move the files from 1-fuse.ko, 2-fusercompress, and 3-unionfs to the p500
* become root
* make sure all files are executable and in the PATH
* load the kernel module: insmod fuse.ko
* try to use fuse: ./unionfs --roots=/sdcard /mnt/asec
The last step seems to work, but ps shows no unionfs process.
Next I try with debug enabled:
* ./unionfs --roots=/sdcard /mnt/asec -d
This gives a segfault
Lastly I try with strace to find the segfault:
* strace -ff -F ./unionfs --roots=/sdcard /mnt/asec -d
now the code no longer segfaults, and the mount works.
So my goal now is to figure out why it segfaults when not run via strace.
I found someone who got this working on the desire:
http://forum.xda-developers.com/showthread.php?t=763908
(I tried their binaries just for fun, but they're not compatible with the P500)
They did it by using scratchbox which imports glibc. I was trying to do a native bionic build, but it may be easier to try scratchbox, as it would let me have a modern libfuse. If I can't figure out this segfault, then I'll go there next. Has anyone tried building for the P500 using scratchbox?
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