Re: [Freedos-user] : File systems with metadata support
Hi, On Wed, Nov 20, 2013 at 8:25 AM, za...@gmx.com wrote: I probably found what I was looking for: the COMBOOTF.IMA file from Lucho utilities. https://dl.dropboxusercontent.com/u/15785527/dos/lucho.html But I could not find any documentation. I'm pretty sure this is the Paragon driver and not something Lucho wrote by himself. If it doesn't mention a license, I would be very very skeptical about the legality (although of course that depends on what country you live in). I would not directly recommend it. But feel free to contact Paragon (as if that'll help) for further info! A quick check finds this (http://johnson.tmfc.net/dos/file/readthis.txt): IFS driver ... may not be used commercially (but even non-commercially I'd be skeptical without explicit permission!) There is a reference to this on an unrelated forum: http://www.drdosprojects.de/cgi-bin/anyboard.cgi?fvp=/forum/drp_forum/cmd=iYzaK=3756iZz=3756gV=0kQz=aO=1iWz=0 If I understand correctly, this driver is meant to support even ext3! But, does it really? Don't know. Anything is better than nothing, but we can't really suggest solutions that are illegal. Sadly a lot of software just rots since nobody maintains it (yet copyright still forbids copying such things, ugh). I suggest you just try to use a user-space program like TestDisk. I haven't used it much, but in minimal testing it did seem to access my ext3 partition correctly. -- Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311iu=/4140/ostg.clktrk ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] : File systems with metadata support
Hi, On Wed, Nov 20, 2013 at 6:08 AM, patrick patterson prpat...@peoplepc.com wrote: hello all. longtime reader, first time poster this is something I have been thinking about for a long time. I think it needs to be a part of long file name support, which seems to be pretty messy for compatability (multiple directory entries to carry extra characters in the name). since only 5 bits are used for standard attributes, 3 more could probably be added, but their meaning would not be clear. if one of those was an extended attributes flag that would be a start. if the ea flag is set, lfn support could do significant redefinition of directory entry format, at the cost that programs which bypass lfn access would have problems. if lfn support is done with a redirector (I confess to weak knowledge of how it is done). this may be able to trap all access. Any ideas are highly appreciated, but ... there just aren't enough skilled people to work on this. For instance, I'm nowhere near qualified to hack on file systems stuff in the kernel (and don't have SVN write access anyways). You'd reach a (minmally) more receptive audience at freedos-kernel mailing list, not here. Just FYI, though don't get your hopes up. BTW, IIRC, the FreeDOS kernel developers weren't really interested in adding even native LFN support to the kernel. I'm not sure exactly why, but the existence of third-party drivers like DOSLFN (and the fact that the LFN hacks are patented [until 2017?] and still enforced by MS) probably doesn't help. Any other way of doing it would be incompatible (though I guess it could be optional, for those who needed full interoperability), which is typically considered bad. -- Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311iu=/4140/ostg.clktrk ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] : File systems with metadata support
On Thu, Nov 21, 2013 at 6:46 PM, Rugxulo rugx...@gmail.com wrote: There is a reference to this on an unrelated forum: http://www.drdosprojects.de/cgi-bin/anyboard.cgi?fvp=/forum/drp_forum/cmd=iYzaK=3756iZz=3756gV=0kQz=aO=1iWz=0 If I understand correctly, this driver is meant to support even ext3! But, does it really? Don't know. Anything is better than nothing, but we can't really suggest solutions that are illegal. Sadly a lot of software just rots since nobody maintains it (yet copyright still forbids copying such things, ugh). I have an open source Windows driver that correctly reads and writes the ext4 partitions on a box where I multiboot Win2K and Linux. Ext3 is ext2 with journaling. Ext4 is ext3 with support for extents. If the driver can recognize and read an ext2 file system, I'd expect it to handle ext3 and 4 as well. It can read the directory structure and follow pointers to blocks on disk. I suggest you just try to use a user-space program like TestDisk. I haven't used it much, but in minimal testing it did seem to access my ext3 partition correctly. Test Disk does low level access, and doesn't *care* what the file system is. It operates on the raw device doing direct sector reads. I've used it here to recover lost partition tables, and the companion PhotoRec application to recover lost image files. PhotoRec knows what an image file looks like, and simply does low level disk reads till it finds the start of one and continues to what appears to be the end. __ Dennis https://plus.google.com/u/0/105128793974319004519 -- Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311iu=/4140/ostg.clktrk ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] : File systems with metadata support
On 2013-11-22 00:46, Rugxulo wrote: I suggest you just try to use a user-space program like TestDisk. I haven't used it much, but in minimal testing it did seem to access my ext3 partition correctly. Does the TestDisk solution that you mentioned give full access (i.e. both read and write) to the ext3 filesystem, or would it be read only? What about that Paragon utility? I am asking because for my purposes I would need full access. Also, what are the chances that someone within the FreeDOS community may one day write a driver for a filesystem which supports extended attributes? Not necessarily support for a standard filesystem (ext2, ext3, etc), mind you. A homebrew filesystem too would be good enough, I guess. Thanks again Rugxulo, your expertise is truly invaluable. -- Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311iu=/4140/ostg.clktrk ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] : File systems with metadata support
Hi, On Thu, Nov 21, 2013 at 6:20 PM, za...@gmx.com wrote: On 2013-11-22 00:46, Rugxulo wrote: I suggest you just try to use a user-space program like TestDisk. I haven't used it much, but in minimal testing it did seem to access my ext3 partition correctly. Does the TestDisk solution that you mentioned give full access (i.e. both read and write) to the ext3 filesystem, or would it be read only? AFAIK, it's read-only, meant for recovering files (from broken system to working, until reinstall or similar migration). What about that Paragon utility? I am asking because for my purposes I would need full access. Don't know, never tested, not sure of the license. Ask Paragon (or Lucho or whoever) directly, if possible, if the accompanying help isn't specific. But be prepared to be disappointed, copyright law isn't very friendly (U.S. = death + 70 years), and people are not diligent about keeping older software alive. Also, what are the chances that someone within the FreeDOS community may one day write a driver for a filesystem which supports extended attributes? Not necessarily support for a standard filesystem (ext2, ext3, etc), mind you. A homebrew filesystem too would be good enough, I guess. Dunno, ask on freedos-kernel, and be prepared to be disappointed. (The glib answer usually is start a Kickstarter campaign, but I have no idea how to do it or if it's even feasible since FreeDOS isn't a corporation, non-profit nor otherwise. But I really don't think funding is the main obstacle here.) Thanks again Rugxulo, your expertise is truly invaluable. Says nobody ever (except on April 1st)! :-) I'm just a two-bit hack, take my words with a bucket of salt. -- Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311iu=/4140/ostg.clktrk ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
