HEADS UP - DEVFS ON MASTER
ahornung at gmail.com
Tue Aug 4 15:30:41 PDT 2009
Just a short *WARNING*:
do *NOT* activate the loading of any sound modules in loader.conf:
it'll cause a panic, probably due to a bug in the kernel linker.
2009/8/4 Matthew Dillon <dillon at apollo.backplane.com>:
> Alex's GSOC project, DEVFS is now on master and active. Some care must
> be taken when upgrading.
> * A full buildworld, buildkernel, installkernel, installworld sequence
> is needed. No changes to fstab are needed, /dev will be mounted
> from devfs automatically by the kernel.
> * If you run a new kernel with an old world (without devfs) you will
> not be able to login as root, but you will still be able to login
> as a user and su, and you should still be able to boot single-user.
> In otherwords, things will be messed up but in a fixable way, until
> both the world and the kernel are in sync.
> * A great deal of testing of basic functions has been done, but
> there is still a very good chance of breakage. Please test and
> report any issues. Very few GUI components have been tested,
> so if X or sound stops working it may be a day or two before we
> can get it whacked back into shape.
> * The master branch may be unstable for a week as wider testing is
> * PEOPLE RUNNING CHROOTS: Character and block devices in the filesystem
> NO LONGER WORK. If you have chrooted or jailed areas with their own
> /dev, you have to use mount_devfs in those areas.
> Many features are now working. We have auto-cloning support for
> numerous devices but only a few userland utilities have been adjusted
> to use it. To reduce issues DEVFS will pre-create a bunch of units for
> numerous devices so the non-cloning userland utilities still work.
> In addition, fully automatic slice and partition probing and reprobing
> is now operational. When you fdisk a drive the slices will pop up
> in /dev, and when you disklabel a slice the partitinos will pop up
> as well. MBR and disklabel edits will properly and automatically
> reprobe the drive. IMHO this is a very, very cool feature.
> The nrelease build still has a few issues. It will work and the intaller
> will come up, but the installer may have trouble seeing newly created
> partitions (a 'retry' usually solves the problem). This is a known
> issue and will be fixed.
> Matthew Dillon
> <dillon at backplane.com>
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