There is a race between ZFS module initialization and our attempt to
import pools. We address this by doing a busy wait for the /dev/zfs
device to appear. We wait a maximum of 5 seconds for the device to
appear.
We also slightly alter output messages to be more readable.
Signed-off-by: Richard Yao <ryao@gentoo.org>
Conflicts:
defaults/initrd.scripts
call_func_timeout permits us to call a helper function and kill it
should it exceed some timeout. This is derived from example code posted
on Stack Overflow:
http://stackoverflow.com/a/11056286
Signed-off-by: Richard Yao <ryao@gentoo.org>
Conflicts:
defaults/initrd.scripts
At least one kernel configuration generates an addition module that we
need to load for USB 3.0 support, so lets load it.
Reported-by: Robin Johnson <robbat2@gentoo.org>
Signed-off-by: Richard Yao <ryao@gentoo.org>
udev may still be processing rules and this can cause very bad
things. For instance, modules_load may have loaded an usb host
controller driver and we must wait for the udev rules to terminate.
However, this may lead to other race conditions, but we have
observed that adding scandelay=n where n >= 5 actually fixes the
issue of booting off USB under certain scenarios.
"quiet" is already used by the kernel to avoid printing messages on the
console unless they are errors or warnings. Genkernel should do the same
wrt its initramfs initialization code.
This has also the advantage of improving the boot speed.
scandelay=<secs> should be always preferred. Moreover, nowadays
automatically sleeping waiting for USB storage to come up in
the way we were used to do it doesn't work as one expects, because
USB is very common and USB storage devices are very likely to be
present on a system.
Furthermore, the initialization code after setup_slowusb is already
waiting for devices to come up.
While this makes out of the box booting a bit harder on some ancient CD/DVD
drives, it really speeds up the common use case by not sleeping for 3 seconds.
Our modprobe is an ancient heritage from the past, probably dating to
a time where busybox's modprobe features were limited. There is no reason
at all to keep using our own version instead of the busybox one.
This commit also makes modules_scan 15% faster.
Nearly every general documentation including the one in the
kernel tree and the scripts for GRUB2 all expects this flag
to work.
Signed-off-by: Peter Hjalmarsson <xake@rymdraket.net>
If INIT_OPTS='' is not specified before the argument loop, scoping rules
will prevent it from being seen by the switch_root invocation.
Signed-off-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Richard Yao <ryao@gentoo.org>
Clean up documentation and functionality of "part" argument to
initramfs. It is meant to imitate the same option to the kernel.
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
The default value of ${ZPOOL_USAGE} is unset, quoting it would result into
a "" argument passed to zpool. The workaround to this is to use "dozfs=force"
boot argument.
Signed-off-by: Richard Yao <ryao@gentoo.org>
LUKS keydevs now support mount by UUID/LABEL.
X-Gentoo-Bug: 378105
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=378105
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
We do not support ramdisk, only initramfs nowdays.
So init= is a dead command, and we may as well have it do the same as
it does for dracut and in the Linux kernel documentation.
(Use rdinit to choose the initramfs init file)
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Somewhere in the mists of time we lost part of the multipath patch, so
we were bundling the userspace, but not the kernel modules, or ever
using it.
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
The old driver is problematic, as even with the pata_amd module loaded,
it will not release the device. Disable the old driver on remaining
platforms, add pata_amd where missing & needed (not alpha).
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Running `mdev -s` will ensure that device nodes are properly initialized.
It does not function as a netlink hotplug daemon. We must run it after
the modules are loaded to ensure that /dev/zfs has been created before
userland programs attempt to use it.
Effective for genkernel's modprobe script or busybox "not small"
modprobe.
Signed-off-by: Dzianis Kahanovich <mahatma@eu.by>
Updated-by: Richard Yao <ryao@cs.stonybrook.edu>
Make ZFS only import the specified pool
Set zfsutil when mounting non-legacy rootfs
Check for /sbin/zpool in addition to /sbin/zfs
Print information messages when ZFS pools are imported
Prompt user when mounting a ZFS filesystem without ZFS support
Verify that <dataset> in real_root=ZFS=<dataset> is a filesystem
Richard Yao
Fabio Erculiani
Peter Hjalmarsson
Toralf Förster
Robin H. Johnson
Marek Sapota
Dustin Frisch
Sebastian Pipping
Richard Yao
Dzianis Kahanovich
Kenny Cheng
Marios Andreopoulos