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Currently in initrd, hardware clock is always considered to use UTC time
format and system time zone is also UTC. Thus system time isn't correct
if hw clock is localtime or we're using other time zone in real root.
To fix this, install /etc/adjtime and /etc/localtime to initrd. If not
using systemd, install /usr/sbin/hwclock for dracut init to setup system
time.
[harald: combined the two hostonly if's]
Signed-off-by: WANG Chao <chaowang@redhat.com>
Signed-off-by: Harald Hoyer <harald@redhat.com>
When dropped to emergency shell, for example, use rd.break=pre-pivot,
the PS1 won't correctly show current directory we're in:
pre-pivot:/# cd /sysroot/
pre-pivot:/#
(still shows "/")
Let's take a look at PS1 variable:
(I'm adding prefix/suffix 'x' to make it clear):
pre-pivot:/# echo x${PS1}x
xpre-pivot:/# x
(PS1 isn't dynamic)
Regarding the current dracut code, it should be:
pre-pivot:/# cd /sysroot/etc
pre-pivot:/sysroot/etc#
With this patch:
pre-pivot:/# echo x${PS1}x
xpre-pivot:${PWD}# x
(Now PS1 is dynamic, it will show the directory correctly)
I tested for both normal boot and kdump boot.
Signed-off-by: WANG Chao <chaowang@redhat.com>
Currently the default action is emergency_shell when failure happened
during system boot. In kdump, this default may not be expected. E.g,
if dump target is not rootfs, it does not matter if mount root failed.
Adding an action which allow dracut always go ahead though failure
happens is needed by kdump.
So here add a function action_on_fail() and cmdline parameter
action_on_fail=<shell | continue>. Use action_to_fail() to replace
emergency_shell which was called after failure. By $(getarg action_on_fail=),
decide to drop into shell, or to leave away the failure and go ahead.
v3->v4:
add handling of selinux policy loaded failure, and change code format to
be consitent
Signed-off-by: Baoquan He <bhe@redhat.com>
[Edited by harald@redhat.com]
Previously I added several trace point to the begin of several
init hooks of systemd, old init script also need this debug info.
Doing same here as what's added in the systemd service scripts:
At cmdline hooks adding trace of "1+:mem 1+:iomem 3+:slab"
For other hooks adding trace of "1:shortmem 2+:mem 3+:slab"
Signed-off-by: Dave Young <dyoung@redhat.com>
When dracut-lib.sh is sourced it checks the command line (when not using systemd)
as part of the check_quiet() call.
Therefore mount /proc earlier in init.
Avoids the error:
init: 77: /lib/dracut-lib.sh: /proc/cmdline: No such file or directory
For cmdline argument with numeric value, add a new function getargnum
It will get proper value with default value as $1, min value as $2,
max value as $3, and param name as $4. valid result will be echo to stdout.
for nul or value not valid it will just echo the default value.
Note: The values should be >=0
[v1->v2]: add arg <minval>
[v2->v3]: do not use bash string match =~
Signed-off-by: Dave Young <dyoung@redhat.com>
Starting with commit 24a38bc1cb dracut
uses udev builtins but still depends on >=udev-166 in dracut.spec. This
patch makes dracut work with older udev again.
All credits go to Alexander Tsoy <alexander@tsoy.me>; see
https://bugs.gentoo.org/show_bug.cgi?id=437700
ismounted handles both find-by-dev and find-by-mnt, but there's two issues:
1. for find-by-dev, it use readlink to get the canonical dev name, but
lvm is different with other devices, the canonical name for lvm devices
are symlinks like /dev/mapper/vg-lv00
2. for nfs mounting, just use [ -b $dev ] is not enough, it need being handled
seperately.
Per Karel Zak's suggestion, findmnt util is suitable for this purpose, it
handles these cases well, so just use findmnt instead of implement all the
logic by ourselves. Thanks, Karel.
Signed-off-by: Dave Young <dyoung@redhat.com>
kdump module also need to convert dev name to udev symlinks.
So better to move function get_persistent_dev() to dracut-functions.sh
Also in this patch improvement and fix the original function:
a) use udevadm info --query=name to get the kernel name.
This will fix the issue caused by passing symbolic link of a device.
b) fix a bug to compare $_tmp instead of $i with $_dev. Really sorry,
should have tested more carefully.
Signed-off-by: Dave Young <dyoung@redhat.com>
