| Commit message (Collapse) | Author | Age | Files | Lines |
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Operations such as mkfs fail on devices that are not
switched to the actual rootfs before switch_root is
called. The kernel interprets these devices as still
being used even after unmounting and errors such as
below are seen when the target is fully booted
root@v1000:~# umount /dev/sdb1
root@v1000:~# mkfs.ext4 /dev/sdb1
mke2fs 1.43.8 (1-Jan-2018)
/dev/sdb1 contains a ext4 file system
last mounted on Wed Nov 28 07:33:54 2018
Proceed anyway? (y,N) y
/dev/sdb1 is apparently in use by the system; will not make a filesystem here!
(From OE-Core rev: ce27982c24d2398c9eadb9d4d9e7475509424195)
Signed-off-by: Awais Belal <awais_belal@mentor.com>
Signed-off-by: Muhammad Hamza <muhammad_hamza@mentor.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
(cherry picked from commit ec53ffd01972d1be2d6a28de828b3f0b80dc1e61)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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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>
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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>
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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>
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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>
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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>
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(From OE-Core rev: e6039e6e3b98d6ab91252a5012d76279b1fac6e8)
Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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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>
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