Leap 15.2 hangs at "loading initial ramdisk"

Hi folks,

after the latest update, I cannot boot my Lenovo ThinkPad T460s any more. With the old kernel, it worked. More precisely:
kernel-default-5.3.18-lp152.19.2.x86_64 - boots
kernel-default-5.3.18-lp152.60.1.x86_64 - hangs at ***loading initial ramdisk

***Does anybody have any idea?


Don’t have “acpi=of” in the boot options? Is this an optimus/hybrid system?

Hi checkfrog,

Any chance you are using snapshots e.g. with BTRFS? Then you can boot from grub into the last “safe” snapshot. There you can perform as root

snapper rollback [snapshot number] 

I have just got the update to 5.3.18-lp152.63.1 - maybe that works better for you?

There is an Update for the kernel, zypper, dracut etc., boot with the working kernel and update your system.

I now updated to 5.3.18-lp152.63.1 - but the problem is: the updates always make the problem appear, not disappear.

lp152.19 works, lp152.60 and lp152.63 do not work any more.

@malcolmlewis: you mean i should include or delete *acpi=off *?

How can I tell whether it is hybrid/optimus system?

Check the output from the following;

cat /etc/default/grub | grep GRUB_CMDLINE_LINUX_DEFAULT
/sbin/lspci -nnk | egrep -A3 "VGA|Display|3D"

Hi, as far as the first point is concerned

cat /etc/default/grub | grep GRUB_CMDLINE_LINUX_DEFAULT

it does not make a difference whether acpi=off is present or not.

The second point

/sbin/lspci -nnk | egrep -A3 "VGA|Display|3D"

results in

00:02.0 VGA compatible controller [0300]: Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07)
             Subsystem: Lenovo Device [17aa:2233]
             Kernel driver in use: i915
             Kernel modules: i915