[PATCH] dracut-module-setup.sh: Ensure initrd.target.wants dir exists

[Kairui Song]

Latest dracut release stopped creating
$systemdsystemunitdir/initrd.target.wants dir for us, so ensure it
exists before creating the symlink.

Signed-off-by: Kairui Song 
---
 dracut-module-setup.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh
index 8691f9c..a18d765 100755
--- a/dracut-module-setup.sh
+++ b/dracut-module-setup.sh
@@ -827,6 +827,7 @@ install() {
     inst "/lib/kdump/kdump-lib-initramfs.sh" "/lib/kdump-lib-initramfs.sh"
     inst "$moddir/kdump.sh" "/usr/bin/kdump.sh"
     inst "$moddir/kdump-capture.service" "$systemdsystemunitdir/kdump-capture.service"
+    mkdir -p "$initdir/$systemdsystemunitdir/initrd.target.wants"
     ln_r "$systemdsystemunitdir/kdump-capture.service" "$systemdsystemunitdir/initrd.target.wants/kdump-capture.service"
     inst "$moddir/kdump-error-handler.sh" "/usr/bin/kdump-error-handler.sh"
     inst "$moddir/kdump-error-handler.service" "$systemdsystemunitdir/kdump-error-handler.service"

[Bhupesh Sharma]

Hi Kairui,

Thanks for the patch.

On Mon, Mar 16, 2020 at 2:02 PM Kairui Song  wrote:
> Latest dracut release stopped creating
> $systemdsystemunitdir/initrd.target.wants dir for us, so ensure it
> exists before creating the symlink.
> Signed-off-by: Kairui Song
>
> dracut-module-setup.sh | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh
> index 8691f9c..a18d765 100755
> --- a/dracut-module-setup.sh
> +++ b/dracut-module-setup.sh
> @@ -827,6 +827,7 @@ install() {
>      inst "/lib/kdump/kdump-lib-initramfs.sh" "/lib/kdump-lib-initramfs.sh"
>      inst "$moddir/kdump.sh" "/usr/bin/kdump.sh"
>      inst "$moddir/kdump-capture.service" "$systemdsystemunitdir/kdump-capture.service"
> mkdir -p "$initdir/$systemdsystemunitdir/initrd.target.wants"
> ln_r "$systemdsystemunitdir/kdump-capture.service" "$systemdsystemunitdir/initrd.target.wants/kdump-capture.service"
> inst "$moddir/kdump-error-handler.sh" "/usr/bin/kdump-error-handler.sh"
> inst "$moddir/kdump-error-handler.service" "$systemdsystemunitdir/kdump-error-handler.service"
>
> --

Thanks. It fixes the following problem for me on fedora rawhide with
`kdumpctl restart`:

# kdumpctl restart
kexec: unloaded kdump kernel
Stopping kdump: [OK]
No kdump initial ramdisk found.
Rebuilding /boot/initramfs-5.6.0-0.rc5.git0.1.fc33.aarch64kdump.img
ln: failed to create symbolic link
'/var/tmp/dracut.a9NXzb/initramfs//usr/lib/systemd/system/initrd.target.wants/kdump-capture.service':
No such file or directory
kexec: loaded kdump kernel
Starting kdump: [OK]

So feel free to add:
Tested-and-Reviewed-by: Bhupesh Sharma

Regards,
Bhupesh