reiser4 and metas.

stevenaleach · n00b Joined: 18 May 2005 Posts: 19

I just got a kernel to build with reiser4 enabled, vanella 2.6.12.1 from kernel.org with the reiser4 patch from here: http://wojia.be/blog/ . I emerged reiser4progs, and was able to use mkfs.reiser4 to create a file system on a jumpdrive partition. Unfortunately, the very cool metas feature, which is what I wanted to check out, seems to be missing/disabled. I cannot access the /metas directory for a file, even if it is set as executable as one site suggested.

Having checked the kernel config, there is no option there to enable/disable the metas feature.

Does anyone have any experience with this?

Jake · Veteran Joined: 31 Jul 2003 Posts: 1132

Edit /usr/src/linux/fs/reiser4/reiser4.h, find

stevenaleach · n00b Joined: 18 May 2005 Posts: 19

Thanks,

Do you know how to go about creating a new file in foo/..../ ?

My attempts so far have all ended in rebooting in order to unmount the now unhappy filesystem :-)

I would like to at least check out the possibility of writing a file manager which would make use of the pseudo directory much like the resource fork in Mac OS. What little information I have found suggests this should be possible although much of the information seems to be out of date: For instance everything I had read still referred to foo/meta/* rather than foo/..../*.

Jake · Veteran Joined: 31 Jul 2003 Posts: 1132

I don't think you can create new files in file-directories. You should be able to write to some of the existing ones, however.

Unless you're just looking for a fun project, now's not the time to write a file manager based on metas. When compression and encytion support are finalized, it'll be worth it. Other advanced features like fibration, keying, and repacking might be worth including when/if interfaces become available. Basically, we don't need yet another file manager, but something that takes advantage of reiser4 features might be handy.

Don't worry about the /..../ name; reiser4 metas have changed names at least as often as Mozilla Phoenix/Firebird/Firefox.

playfool · Posted: Fri Jun 24, 2005 8:53 pm Post subject:

there's a good reason that feature is disabled - please understand that.

Jake · Veteran Joined: 31 Jul 2003 Posts: 1132

playfool · Posted: Sat Jun 25, 2005 9:27 am Post subject:

UncleOwen · Posted: Sat Jun 25, 2005 9:28 am Post subject:

What's so poor about those tests? It's Reiser4 that's broken, not the programs...

Jake · Veteran Joined: 31 Jul 2003 Posts: 1132

UncleOwen · Posted: Sun Jun 26, 2005 8:42 am Post subject:

Exactly. And that's why Raiser4 is broken.

asimon · Posted: Sun Jun 26, 2005 12:35 pm Post subject:

The reiser4 patch for 2.6.12 is not ready yet. If you trust fs patches from random sites, good luck. But don't say the fs is broken, when you use unauthorized unsupported patches.

BTW, reiser4 doesn't support the xattr interface. That has nothing to do with broken. My Xorg server doesn't support Apple's Display PDF, it's broken! Huh?

EDIT: You can get the 2.6.12 patch at ftp.namesys.com when it's ready.

mirko_3 · l33t Joined: 02 Nov 2003 Posts: 605 Location: Birreria

Many here enjoy saying that r4 is broken, that it's unstable, that it's laggy, and so on. Well, I don't see why; it's a new fs, you sure can't expect it to be universally stable, like ext3, which has been out for years instead of months - and actually, it's quite stable, only you can't expect it to work for everyone perfectly already. It works for me, and I'm happy. By saying that it's the worst thing since WW1, you people just scare away potential testers, which is what r4 really needs now.
Of course it's not "broken". It's just a different approach. Saying that it's broken because of this is just mindless bashing.
_________________
Non fa male! Non fa male!

UncleOwen · Posted: Sun Jun 26, 2005 12:51 pm Post subject:

And saying that programs are broken is even more mindless, when in fact the filesystem is at fault.

Jake · Veteran Joined: 31 Jul 2003 Posts: 1132

playfool · Posted: Mon Jun 27, 2005 10:39 am Post subject: