Harald Hoyer [Thu, 2 Jul 2009 09:42:35 +0000 (11:42 +0200)]
switch to initqueue handling of events
Jobs are no longer handled inside the udev events.
/sbin/initqueue is called with the commands to queue.
init will work on these jobs sequentially, so that we prevent jobs
from being killed by udev timeouts.
This serialization also prevents some problems introduced by
the udev event parallelization.
Remove the NBD legacy format. It wasn't actually matching Debian's nbdroot implementation.
Talked with Debian nbdroot author and he agreed we shouldn't support their obsolete syntax in dracut.
Their root=/dev/nbd[0-9] is no longer needed. Also their syntax was very standardized requiring
a separate boot= parameter.
Warren Togami [Mon, 22 Jun 2009 20:40:09 +0000 (16:40 -0400)]
Remove dracut invented variations of Legacy nfsroot.txt syntax and accompanying tests.
- Remove root=nfs nfsroot=...
- Remove root=nfs4 nfsroot=...
- Remove root=/dev/nfs4 nfsroot=...
- Legacy nfsroot= without root=/dev/nfs should be unsupported according to the nfsroot.txt.
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/filesystems/nfsroot.txt
45 root=/dev/nfs
46
47 This is necessary to enable the pseudo-NFS-device. Note that it's not a
48 real device but just a synonym to tell the kernel to use NFS instead of
49 a real device.
Harald Hoyer [Fri, 19 Jun 2009 11:53:46 +0000 (13:53 +0200)]
add target for "dist" and "gitrpm"
"make gitrpm" creates an rpm from the last git checkin
"make rpm" creates an rpm for the version tagged with $VERSION
"make dist" creates a tarball for the version tagged with $VERSION
Seewer Philippe [Thu, 18 Jun 2009 13:35:00 +0000 (15:35 +0200)]
removed exit on fail "sh -e" for dhclient-script
The Bug causing dhclient to recall BIND has been identified:
dhclient-script runs with #!/bin/sh -e, causing setup_interface
to fail if no hostname is provided by dhcp as it is the last statement
in that function.
Philippe Seewer [Tue, 16 Jun 2009 18:50:31 +0000 (20:50 +0200)]
multinic support: Add bootdev cmdline argument
This introduces a new cmdline argument bootdev, to support the case
where multiple nics need to be up before the netroot handler is called.
Cases involved might be bonding, iscsi multipathing, bonding, ...
This argument is required to decide which interface is the primary to
use for dhcp root-path, default gw, etc.
When multiple ip= items are present on the cmdline, the ip= parser
now enforces the presence of <dev> further demands that the new argument
bootdev contains the name of the primary interface. Configurtion if of
course still delegated to netroot but in is enhance to ensure that netroot
"waits" for all required interfaces to be up.
First, the ip= cmdline parser ensures that all ip items contain a <dev> then
checks the ip items and checks as well that an ip= item for the given bootdev
was found.
When the first netroot starts, probably for eth1, it checks wheter interface
configuration for all interfaces is available. If not it exits. The second
start of netroot (eth0, which was a bit delayed because of dhcp) sees that
all interfaces are present, configures them and continues.
Philippe Seewer [Tue, 16 Jun 2009 18:21:41 +0000 (20:21 +0200)]
multnic support: move actual interface configuration to netroot
Instead of configuring devices when they are ready, ifup and
dhclient-script write script files which are then sourced by
netroot.
This solves the problem of having multiple interfaces and not knowing
which one to use for dhcp or default route. This way, netroot (which
is serialized anyway) configures the interface before calling the root
handler and deconfigures it if the handler failed.
Example: root=nfs:server:path and ip=dhcp with eth0 and eth1 receiving
a dhcp reply, but eth0 is the correct one to use.
Assuming eth1 is the first to receive the dhcp-reply, netroot starts
and configures eth1. nfsroot is run but fails, so eth1 is deconfigured. If
eth0 has received a dhcp-reply (or not, then we wait) the other locked
netroot process starts and tries with eth0 and succeeds.
Philippe Seewer [Tue, 16 Jun 2009 17:26:35 +0000 (19:26 +0200)]
netroot: Only start interface configuration if really needed
Currently network configuration is launched by udev as soon as it
discovers a driver. This isn't such a good idea since we don't know
if network configuration is actually required. Change this by writing
the udev rules on the fly if required.
Philippe Seewer [Tue, 16 Jun 2009 17:14:51 +0000 (19:14 +0200)]
netroot: Add ip= cmdline checker
As with other netroot boot arguments ip= lines should be parsed and
checked. Having this has the advantage that other cmdline scripts
can tell the ip= parser if dhcp or ip=:srv:... is needed, like
parse-root.sh (renamed dhcp-fallback) or parse-nfsroot do.
The nfs test-suite has one check which uses static ip lines, but
the autoconf param is wrong. Fixed this as well.
Philippe Seewer [Tue, 16 Jun 2009 16:25:16 +0000 (18:25 +0200)]
netroot: Introduce detailed cmdline parsers
This introduces detailed cmdline parsing, warning or aborting if the
cmdline does not contain arguments according to the spec.
Makeing sure the parsers don't just call getarg for netroot et al,
allows their reuse inside netroot to analyse dhcp root-path as well.
Hence we can get rid of the current netroot hooks. The hook itself stays
in order to add further modules which should run before netroot handlers
are called.
This has one drawback: nfsroot needs some more logic to handle nfs
specific data inside dhcp root-path.
The parsers have been writting according to current discussions about
cmdline arguments. This lead to the "discovery" that some test-cases
violate the spec. These tests have not been removed, but change to
"must fail".
Philippe Seewer [Tue, 16 Jun 2009 16:03:59 +0000 (18:03 +0200)]
Log error messages to /dev/kmsg
When die()'ing inside scripts that are udev run, a simple echo isn't
good, udev usually swallows that. Routing messages to /dev/kmsg
ensures they appear on screen and in addition are easily saved through
dmesg.
Philippe Seewer [Tue, 16 Jun 2009 12:39:35 +0000 (14:39 +0200)]
Add 'die()' for easier error handling
Printing out an errormessage and quitting is easier if there's a function
to call. If the script calling die has exit trapped, like in init, the
emergency_shell is automatically called.
Philippe Seewer [Tue, 16 Jun 2009 12:24:38 +0000 (14:24 +0200)]
netroot and others: Style changes
Multiline conditionals ( && { ... } ) should use if, function
declarations go to the top of the file, add/update comments and remove
some unnecessary clutter.
Philippe Seewer [Tue, 16 Jun 2009 10:14:02 +0000 (12:14 +0200)]
write-ifcfg: Save static ip configuration
Saveing ip= options in ifup makes the information available for
later use. This solves the problem how to write static ip configuration
in ifcfg files.
Philippe Seewer [Tue, 16 Jun 2009 09:35:49 +0000 (11:35 +0200)]
netroot: Use same method to check for already mounted root as init
base/init uses [ -d "$NEWROOT/proc" ] to check if root is mounted
or not. Netroot should do the same. In addition this gets rid of
another file in /tmp, since /tmp/netroot.done isn't needed anymore.
Philippe Seewer [Tue, 16 Jun 2009 09:26:29 +0000 (11:26 +0200)]
netroot: Use root.info instead of netroot.info
Having two files which are used more or less at the same time isn't
that easy to handle and read. Instead, move the contents of netroot.info
to root.info and only use root.info. This is cleaner and makes debugging
easier.
Philippe Seewer [Tue, 16 Jun 2009 08:52:21 +0000 (10:52 +0200)]
netroot handlers: Add argument checking
This is probably not necessary, but paranoia dictates that the actual
netroot handlers should check if all three required arguments (netif,
root, NEWROOT) are there and useable.