Frank van der Linden commitolta az UFS2 kódjának első részét a NetBSD-be. A kódot a FreeBSD-ből vették át (Marshall Kirk McKusick fejlesztése). Az UFS2 egy kiterjesztés az FFS-hez - amely 64-bites block mutatókat (pointers) ad a filerendszerhez, > 1 TB támogatás, kiterjesztett file tárolás és még sok minden más újdonság.
Email bejelentés:Subject: initial UFS2 support committed
To: None current-users@netbsd.org
From: Frank van der Linden fvdl@wasabisystems.com
List: current-users
Date: 04/02/2003 12:56:06
I just committed the first part of the UFS2 code, derived from the FreeBSD code. I've been porting this over the last month or so as my daytime job for Wasabi.
UFS2 is an extension to FFS. It adds 64 bit block pointers (breaking the 1T barrier), support for extended file storage, and a few other things. Since a few structures were renamed, and the superblock layout for FFS changed, this touches quite a lot of files.
UFS2 is not (yet) the default type for FFS filesystems. newfs(8) will create a normal FFS filesystem by default. If you want an UFS2 fileystem, specify "-O 2" as an option.
No additional kernel options are needed for UFS2 support, it's
contained within the FFS code.
I have tested the code in various circumstances (with and without softdep, with different byteorder, etc), and tested all filesystem utilities at least once. Should you run in to filesystem problems you had not seen before, please use send-pr to file a PR, or send me a message.
Please note that older fsck binaries will complain a bit about
filesystems if you boot a new kernel, because of some superblock changes. This is harmless. However, if you have 1.6 fsck binaries, they will signal a fatal superblock mismatch with the first alternate, because they compare too many fields (even ones that aren't useful). This is annoying, and I'd advise peole to upgrade their fsck_ffs binary before using a new kernel. 1.6.1 will have an fsck that is forward compatible.
Again, none of this signals actual filesystem damage, but it's
still annoying.
- Frank
Folytatódik Emmanuel Dreyfus [p99dreyf@criens.u-psud.fr] folyamatban levő cikksorozata, amely a NetBSD operációs rendszeren való Irix bináris kompatibilitást elemzi. A cikksorozat jelenleg a hatodik részénél tart. Mai téma: share groups emuláció, néhány nem dokumentált IRIX titok, például a verem elrendezés és regiszter beállítások, a sproc(2) visszafejtése, stb.