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#Fuse ext2 forum drivers
As it is now, I'll have to do this myself on the drivers I want to use since I won't support doing this through the C file handle function. They could just as well defined two callbacks within fuse that read and write sector data. Note: the same works for Win32, there you have to open the block device \\.\PhysicalDisk\X, and then you can use ReadFile and WriteFile. So while the fuse application using open/read/write/close syscalls, if it uses them on a block device, the kernel will actually translate those to sector reads/writes. Not really, the whole idea behind UNIX's everything is a file philosophy is that you can access block devices as a file. The high-level functions parse complete paths within the filesystem implementation, and unless the writers thought about implementing synchronization, supporting the high-level interface would mean only one thread could execute within the file system at a time, a severe limitation that would affect performance. Those will allow me to put synchronization primitives on path parsing, modifying metadata and file data. I'll limit myself to only providing a compatible interface for the low-level functions. properly, this should compile on your OS without probs) a user-space application that handles the file system (if you did steps 1. a user-space library: you can port libfuse, or you could implement one with the same API, but uses your own syscalls, that's a possibility tooģ. a kernel driver: you must implement the syscallsĢ.
#Fuse ext2 forum how to
I wrote about it on the wiki, but that page is more focused on how to implement a FUSE driver instead of how to port it. But yes, you do that once and you get access to many many file systems. The idea to use FUSE to get access to a lot of filesystems without much effort, particularly ext and NTFS is compelling, I wonder how well this would work in practice.I wouldn't say "without much effort", because you'll have to port a linux kernel driver to your OS. So, the question is if FUSE actually adds much usefulness? There is an NTFS fues implementation, but one might wonder if this can be reused or not, or if it must be more or less rewritten from scratch to provide a reasonable interface that is reeentrant. That limits the number of possible fuse filesystems.Īnother problem is that there is no ext4 fuse that has write operations, and no Reiser or other complex filesystem. I think the low-level interface must be used with fuse, but it's up to the implementer to decide which interface to use.
#Fuse ext2 forum code
Another problem is that it is not re-entrant and the code relies on a higher level interface where paths are parsed internally. It's not supported by cygwin, and actually no fuse flesystem is part of cygwin, and so testing it would require a real Linux box. It actually can only be used by mounting a file in the local filesystem, and then normal file operations are used instead of a read/write sector interface that would be expected if real hardware was used. I'm perfectly happy using the Linux command line, so a solution that involves SSHing into the AS5304T is fine.The idea to use FUSE to get access to a lot of filesystems without much effort, particularly ext and NTFS is compelling, I wonder how well this would work in practice.įor example, the fatfuse which is part of ubunti (it no longer seems to be available as an independent project) has a lot of problems. I'm new to Asustor, so I'm not sure what is and isn't possible on it. Copying the files via my laptop is of course possible, but the SATA -> USB interface is quite slow and it would be ideal if I could just connect the disk directly to the Asustor. I'd like to transfer everything across to my new AS5304T, but because the ReadyNAS's filesystem has a 16K blocksize I need something like fuse-ext2 to mount it. The Duo was fried a couple of weeks ago in a lightning storm along with one of the two hard disks in it, but the other disk is fine - I hooked it up to my laptop (on Linux) via an external enclosure and the data is all there. To give you a bit more background, the volume is from my old NAS box, a ReadyNAS Duo. Is there a way of using fuse-ext2 on the AS5304T? I want to hook up an external hard drive and copy its contents over, but the contents are on a logical volume with a a 16K blocksize so I need fuse-ext2 or something similar to mount it.