The rootfs can be addressed also by referring to the PartUUID
value from the GPT.
This patch enables such type of reference.
(From OE-Core rev: 1ab2ca141d3defe4b80212e28ac7c3f2271e2515)
Signed-off-by: Igor Stoppa <igor.stoppa@intel.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
On some hardware platforms (Gigabyte, qemu), detection of USB devices
by the kernel is slow enough such that it happens only after the first
attempt to mount the rootfs. We need to keep trying for a while
(default: 5s seconds, controlled by roottimeout=<seconds>) and sleep
between each attempt (default: one second, rootdelay=<seconds>).
This change intentionally splits finding the rootfs (in the new
"rootfs") and switching to it ("finish"). That is needed to keep udev
running while waiting for the rootfs, because it shuts down before
"finish" starts. It is also the direction that was discussed on the OE
mailing list for future changes to initramfs-framework (like
supporting a "live CD" module, which would replace or further augment
mounting of the rootfs).
(From OE-Core rev: 2a50bb9ee8838e3d026c82dc09aaccb880a264f4)
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Depending on the module we use, the /run/lock may be required. This
creates it as part of initial setup and thus makes it available for
every sub module.
(From OE-Core rev: 1cf288a0514ae9365fe55a0ff90b5abe35042cef)
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
The following error occurs when udevd startup:
udevd[146]: bind failed: No such file or directory
error binding udev control socket
udevd[146]: error binding udev control socket
(From OE-Core rev: 4db089f10a379bc9a4df287bd657153eb4b94c45)
Signed-off-by: Wills Wang <wills.wang@live.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
When the "boot" parameter refers to a non-existent device, the only
visible output at normal log levels was a rather confusing:
ERROR: There's no '/dev' on rootfs.
That's because the actual error, not being able to find the root
device, was only a debug message, which gets ignored in the default
mode.
Promoting the "root '$bootparam_root' doesn't exist." message from
"debug" to "msg" gives sufficient context to understand the error. A
more intrusive change would be to change also the control flow.
(From OE-Core rev: 71d7803e5b13e26fd8001e87cfbac68114ddaa30)
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Due to a missing $ before the variable name, all fatal errors ended up
invoking a shell, instead of only doing that when init_fatal_sh is set
as boot parameter.
(From OE-Core rev: 2a4335eae4b31ea9451a665dad2ba33ae4967670)
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
When the init_fatal_sh boot parameter is present (i.e. used without
value) and a fatal problem occurs inside the initramfs-module, a shell
will be started instead of looping forever.
Useful for debugging.
Interestingly enough, the code was already indented to support such an
if check...
(From OE-Core rev: 1d3dc681e809846dba7cae4f81566045a3f8c205)
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
It can be useful for debugging to override the default /sbin/init.
This is something typically done via the init boot parameter which
then gets interpreted by the kernel. But when using an initramfs, it
is the initramfs which must react to the option.
(From OE-Core rev: dfd6d4c765924f472ac2df724342547b5c15249a)
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Default is to mount the rootfs read/write. "ro" can be used to turn
that into read-only, which is useful on systems where userspace does
an fsck before remounting read-write.
Giving both "ro" and "rw" will still mount read-only regardless of the
order, because the ordering information is not preserved by the
initramfs-framework's boot param support.
(From OE-Core rev: a09f10f9360862c16fb68972ac041d474d6e3a64)
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
These two parameters are supported by the kernel
(https://www.kernel.org/doc/Documentation/kernel-parameters.txt). When
an initramfs is used, the kernel does not mount the rootfs and the
initramfs needs to react to them.
The boot parameters can be set both by the image creator and
by users.
Supporting these two parameters is useful:
- rootflags is needed to ensure that the rootfs is already mounted as
intended in the time between starting init and init remounting
it (as systemd does); this is critical for IMA where iversion must be
active already when system starts writing files.
- setting it correctly up-front avoids messages from the kernel ("cannot
mount ... as ext2 because ...") when trying to guess the desired type.
For example, assuming that only one of ext4/ext3/ext2 is set,
rootfstype could be set in an image recipe with:
APPEND_append = "${@''.join([' rootfstype=' + i for i in ['ext4', 'ext3', 'ext2'] if i in d.getVar('IMAGE_FSTYPES', True).split()])}"
(From OE-Core rev: b8ea1c61b4b8071edf70f5d42119c54ea84de330)
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Kernel parameters like "uvesafb.mode_option=640x480-32" were turned
into shell variables named "bootparam_uvesafb.mode_option", which
triggered errors from the shell because the name is not valid. Now
points get replaced with underscores, leading to
bootparam_uvesafb_mode_option in this example.
(From OE-Core rev: de81e804f0654092d20ccb8e6e40f4ff614c4b09)
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Test that filter backup module files (files starting with ~)
was accidentally reversed in e6039e6e3b98d6ab91252a5012d76279b1fac6e8,
this patch restore initial behavior.
(From OE-Core rev: b2eb846ee12989add7a7ca8bbf45f293a3a7e56d)
Signed-off-by: Michaël Burtin <michael.burtin@innotis.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
As per the previous commit, systemd-udevd is now in /sbin/systemd/.
(From OE-Core rev: ff0fd25206c3c75921d51cb80bcb6c94ca47b405)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
For better or worse we need to use base_sbindir for udev's libexec dir. This
updates the initrdscripts to also cover the new location. I'd prevously assumed
that it was already covered but its not. udev internal binaries shouldn't be in
PATH so we have to do this to deal with the issue.
(From OE-Core rev: 7e17cba75c20ad820d30128d9b4b0132e7b924a8)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
In cases where other initramfs modules need to rely on
udev running (ie in my case I have to load firmware on
a device that is slow to start) there needs to be a way
to keep it running during the lifecycle of the initramfs
but still be shut down before swith_root is called. I
added a module_pre_hook that will shut down udev before
the finish module is called.
(From OE-Core rev: ce690659ef797bd26dc2be59167aa01744841510)
Signed-off-by: Ian Reinhart Geiser <igeiser@devonit.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This allows use of udev daemon for different installation destinations
so allowing use of udev's from systemd code for initramfs.
(From OE-Core rev: 96daf1b3105e17a67acb5027d0418b2ac28b6820)
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
For a completely quiet boot using recent versions of utilities, the
/etc/fstab and /var/lock need to be available.
(From OE-Core rev: d7a8154d575f918a0a20cb0e3a8f65d02ed32f30)
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
udevd moved location and isn't in $PATH anymore, so use an absolute path to
start it.
The control socket path moved too, so mkdir the directory it's in.
Mounts the new devtmpfs on /dev device tree.
(From OE-Core rev: 543606e5dc379497c34196d004a214e847f5db2d)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Alexandru Damian <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Provides the API and modules for a modular initramfs. The currently
included modules are:
* initramfs-module-debug adds support to dynamic debugging of
initramfs using bootparams
* initramfs-module-udev: enables udev usage
* initramfs-module-mdev: enables mdev usage
* initramfs-module-e2fs: adds support for ext4, ext3 and ext2
filesystems
(From OE-Core rev: 7b69ad2167a1f0e57db82817b98a0cbcb70a0dd3)
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
