Rockbox General > Rockbox General Discussion
Loopback filesystems in a file on vfat.
0x0065:
--- Quote from: jdgordon on May 17, 2008, 09:36:54 AM ---I cant see what this has got to do with rockbox.. but anyway, the NoDo is on a wiki, if you want to add it, please do.
--- End quote ---
Hmmm. Thanks for the invitation. Some people on these things get really obnoxious & confrontational with new people contributing anything. I wouldn't want to offend anyone.
--- Quote from: jdgordon on May 17, 2008, 09:36:54 AM ---BUT, its not a work around for the other filesystems nodo point.
--- End quote ---
It's as much of a work around as partitioning the device. It's also temporary & doesn't involve messing with the partition table. I'd imagine at least some of these devices are a little sensitive about people shuffling their partitions around.
--- Quote from: jdgordon on May 17, 2008, 09:36:54 AM ---and anyway, storing a loopback FS on a fat32 formatted disk is pretty silly... max 4gb storage
--- End quote ---
the 4gb limit is only one of vfat's numerous and manifold limitations. I've clearly stated that it's only a work around to a clear subset of vfat's limitations. I might be silly but at least I can read. FYI: HFS+ is a journalling filesystem. Rumour has it that it's largely based on reiserfs. If this is true, the journalling is probably fairly integral, & not optional as in ext2/3. Refer my earlier comment on journalling filesystems on flash disks & loopback devices.
--- Quote from: jdgordon on May 17, 2008, 09:36:54 AM ---anyone smart enough will know how to read it anyway
--- End quote ---
yeah! If given a multi-million dollar, top 500 supercomputer or a couple of months/years of compute time...
...for the record, if anyone possessing such a thing is that 'motivated', I'll let you read anything, on the condition that you ask nicely
HFS+ = Hierarchical Filing System (improved)
VFAT = Virtual File Allocation Table
ext2/3 = extended [file system] version 2 or 3
FYI in this case means "I've no obligation to tell you, given that you're not paying me for such a service, but I feel morally obliged to inform you that"
p.s. clearly if you cared about people's data security, you'd support a less flaky filesystem. I don't see why you feel the need to explain your feelings on this so explicitly & publicly.
gevaerts:
What's wrong with tar or cpio ? Why do you want to use a loopback device for something like this ?
AlexP:
--- Quote from: 0x0065 on May 17, 2008, 10:26:02 AM ---p.s. clearly if you cared about people's data security, you'd support a less flaky filesystem.
--- End quote ---
What we care about is compatibility with all operating systems (FAT32 just works on Windows/Linux/whatever) whilst not making the firmware of an embedded device that is designed to play music and not to transport sensitive information unnecessarily complicated by supporting other filesystems for no real gain in terms of the primary function of the device, when FAT32 is perfectly good for the job of a DAP.
0x0065:
fg
That's a really perceptive and valid comment expressed quite politely. Thank you.
I'm sure a tar file would cover a lot of cases.
* I assume the people repeatedly asking you for ext2/3 & hfs+ support want it as a 'work in progress' file storage system.
* I've never heard of someone booting off a tar file... (^_<) ...have you? especially not a read/write root partition.
* Can you mount a tar file transparently into a file system? never tried.
* by the time you mix strong crypto with uncompressing to a disk for editing, and start considering the kind of tidy up work you'd have to do, a loopback filesystem starts to look less complicated, once you know how.AGAIN, just a suggestion. Perhaps not for everyone. May be an answer for some of the people you've elected not to support.
--- Quote from: BigBambi on May 17, 2008, 10:53:24 AM ---FAT32 is perfectly good for the job of a DAP.
--- End quote ---
Apologies BigBambi. That was more a dig at jdgordon's tone. Not RockBox as a project, which I quite enjoy daily. For the record:
--- Quote from: 0x0065 on May 04, 2008, 08:34:36 PM --- just a thought.
--- End quote ---
--- Quote from: Llorean on May 04, 2008, 08:43:14 PM ---we ask that you attempt to use real words
--- End quote ---
--- Quote from: saratoga on May 04, 2008, 08:45:14 PM --- Can you think of any real use for this on a DAP?
--- End quote ---
(clearly people are asking for equivalent functionality)
--- Quote from: saratoga on May 17, 2008, 04:43:45 AM --- Neither of those are uses for a DAP.
--- End quote ---
(Actually I'm using a 'DAP' for exactly that at this very moment.)
--- Quote from: jdgordon on May 17, 2008, 09:36:54 AM --- we dont care about your data secutiry, do what you want with other files on the DAP... and anyway, storing a loopback FS on a fat32 formatted disk is pretty silly...
--- End quote ---
might want to look at a policy on patronising & belittling newcomers without even bothering to read or understand their posts...
soap:
I will lock (if not delete) this thread if it degrades into insults and attacks. This subject is barely related to Rockbox as is - and as far as I can tell (willing to be corrected) the Rockbox side of this subject has now been addressed.
The wiki is available for editing...
P.S. - saratoga is 100% correct when he says this (transporting data securely) is not the role of a DAP. It is the role of a portable drive. It has nothing to do with playing music (or videos). Rockbox is a DAP firmware - its primary focus is and will always be to play media files. You are using your DAP as a portable drive - that is fine - but I find the expectation that the DAP firmware be extended into non-DAP roles confusing.
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