If exec fails, then the shell will die unless the next command
is part of a command list. So, exec $whatever || onoes is the way to go
There are also some minor cleanups that were leftovers from splitting
out switch_root in its current form.
This supercedes my previous switch_root patches, and applies on top of davej's
repo at git.kernel.org.
Nash is gone. In its place we have a reasonable switch_root implementation.
Of course, this switch_root is written in some rather hideous shell script,
and relies on some rather dodgy hacks. Rewriting in C would help things out.
However, it should be distro-independent, and it gets the job done.
Modules are now responsible for loading their hooks into the initrd.
This should be all the structure we need to make it easy for things
to integrate with dracut -- now to document and test it all.
We can use sh -c to accomplish the same goal
Also move cat back on to the list of debugging tools -- all the files we were
using it on in the initrd can use read to accomplish the same goal.
This replaces the eu-readelf and ld-linux.so.2 hackery.
As a bonus it will keep working if we (for some bizzare reason) need
to load a non-elf executable or shared library on the initrd.
This ensures that scripts will ahve their interpreter isntalled before
they get installed.
Also included a minor fixup that skips library checking if the binary
we are testing is already installed.
Any script placed in /pre-udev will be sourced just before udev starts
device scanning and loading.
Any script placed in /pre-mount will be sourced just before we try to
mount a root filesystem.
Any script placed in /pre-pivot will be sourced just before we switch to the
new root filesystem.
These hooks should be the minimum needed to add back plymouth and deal with
more advanced filesysem mounting needs (multipath, iscsi, nfs, nbd, etc.)
This is for tasks that should run after device discovery, but before
mounting the new rootfs. Things like cryptoroot and resume from hibernate
should go here.
Hooks are sourced, not executed as separate scripts.
init will ask for a passphrase directly if an encrypted root is detected.
Also, use udevadm settle with a 30 second timeout instead of a hardcoded
30 count loop.
bash allows unlimited recursion and several other tricks to make
finding all the dependencies of a kernel module much simpler.
This nukes about 130 lines, most of it in dracut-functions.
This diff also touches some cleanups made in the inst function.
Victor Lowther