Which repo should I clone?

[Valdis.Kletnieks at vt.edu]

On Mon, 29 Jul 2013 10:25:53 +0300, Alexandru Juncu said:

> For a little more unstable version, there's the linux-next repo (I
> think the address is this [4]).

For some definition of "little more unstable'. :)  V3.10 is out, and
Linus just tagged v3.11-rc3 a few hours ago, which means that 3.11 will
escape in about a month.  Linux-next is, however, what will hopefully
become 3.12 sometime around November.  Be prepared to find weird stuff
and bugs - I manage to find several bugs per kernel release just running
it on my laptop.

Having said that, running linux-next is a great way to get a lot of
kernel experience fairly fast, just from finding bugs and then reporting
them, and seeing if you can figure out why you hit them (git bisect will
become your best friend very quickly).  And the Linux community probably
needs more good testers even more than it needs more coders...

Take frequent backups of your test system - there's zero guarantee that
linux-next won't have any ext4 or btrfs bugs that will eat your root filesystem
or turn your dog green.

Note that due to the way the linux-next repo is built (it's a nightly rebase),
you'll get bad results if you just use 'git clone' and then try to 'git pull'
it to update it.

You need to do something like this:

$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
$ git remote add linux-next git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
$ git fetch linux-next
$ git fetch --tags linux-next

and then you have a copy of linux-next.  To update it, you want to:

$ git remote update    (do *not* do a 'git pull', you'll be sorry :)

Note that although every linux-next daily is tagged with a next-20130729 type tag,
you can't effectively git bisect between two next-* tags, though you *can*
bisect between one of Linus's v3.12-rc9 tags and a next-* tag (and if you know
about git enough to figure out the Linus commit that was the base of
(say) next-20130722 you can use that as one end of a bisect and next-20130729
as the other end).
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