This prints the kernel command line parameters for the current disk
layout.
$ dracut --print-cmdline
rd.luks.uuid=luks-e68c8906-6542-4a26-83c4-91b4dd9f0471
rd.lvm.lv=debian/root rd.lvm.lv=debian/usr root=/dev/mapper/debian-root
rootflags=rw,relatime,errors=remount-ro,user_xattr,barrier=1,data=ordered
rootfstype=ext4
No automatic assembly is done anymore by default. You will have to
specify exactly what devices to assemble
("rd.md.uuid=" "rd.luks.uuid" ...)
or use "rd.auto=1" or "rd.auto" on the kernel command line.
For big servers with thousands of disks we don't want to assemble
everything by default (error prone, slow).
For lvm, multipath, iscsi modules they do not care about the filesystem,
Also there could be devcie in host_devs but it does not get formated.
For these kind of modules, use for_each_host_dev_and_slaves will be better than use
for_each_host_dev_fs, here add a new function to iterate the host_devs and
their slave devices.
In original for_each_host_dev_fs, it will call check_block_and_slaves which
will return once helper function return 0, but this is not enough for kdump
iscsi setup. For kdump iscsi case, it need setup each slave devices so that
the iscsi target can be properly setuped in initramfs.
Thus, this patch also add new functions check_block_and_slaves_all and
for_each_host_dev_and_slaves_all.
Signed-off-by: Dave Young <dyoung@redhat.com>
Tested-by: WANG Chao <chaowang@redhat.com>
Currently dracut uses lvm.conf as found in the system and modifies only
global/locking_type setting. As there's a new feature introduced - the lvmetad
daemon, dracut should disable its use as well by setting "global/use_lvmetad=0"
(patch attached).
Otherwise, there's a warning message issued:
dracut: WARNING: Failed to connect to lvmetad: No such file or directory.
Falling back to internal scanning.
@@ -, +, @@
modules.d/90lvm/lvm_scan.sh | 2 ++
modules.d/90lvm/module-setup.sh | 1 +
2 files changed, 3 insertions(+), 0 deletions(-)
Another solution could be searching in directories found at
/etc/ld.so.conf.d/*.conf or adding a new parameter. Here is a patch
which adds a new --libdirs parameter, and also a new inst_libdir_file
function which will try to expand metacharacters on each lib
directory:
inst_libdir_file "libdevmapper-event-lvm*.so"
In kernel_only mode, we don't want to write /etc/cmdline.d
Correctly return the check functions, so we have a valid return of
for_each_host_dev_fs().
mdraid and dmraid functions had wrong checkings for the filesystem
type.
Due to the way the main loop runs to detect partions, the same one
might be included twice (albeit via different symlinks.
This code simply prevents the same combo being activated twice.
A better fix might simply be to not include duplicate (after
resolving symlinks) entries in the host_fs_types variable.
Like -H, we need to poll every module to check if it is needed
to mount a specific device in '--mount'.
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
The dm module, which lvm and dmraid depend on, installed dmraid
shared libs. The lvm module installed udev rules, which were
already installed by the dm module.
Cleaned up those issues.
The script that was generated always returned the status of the last test
condition, potentially missing any earlier non-existing devices.
The change assures, that the script returns 0 only if all expected
devices are found.
Signed-off-by: Michal Soltys <soltys@ziu.info>
Harald Hoyer