Hi, since you mentioned you also upgraded intel-microcode, does it help
if you regenerate initramfs after purging intel-microcode?
In addition, could you also paste your microcode info when booted with
USB rescue drive?
$ dmesg |grep microcode:
** Changed in: linux-hwe (Ubuntu)
Status: New => Incomplete
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** No longer affects: linux-hwe (Ubuntu)
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1882890
Title:
Cannot boot initrd.img-4.15.0-106-generic on Ubuntu 16.04
Status in linux package in Ubuntu:
Incomplete
Bug description:
Hi,
This morning I applied the latest updates on my Ubuntu 16.04 (kernel
4.15.0-106-generic + intel-microcode 3.20200609.0ubuntu0.16.04.0) and
rebooted as usual to boot on the new kernel but the system won't boot:
black screen.
I tried booting the previous kernel 4.15.0-101 and it seems to be the
same : in grub I select the 4.15.0-101 kernel, press enter, a message
"Loading initrd..." is printed but nothing else happens.
Tried even older kenrel 4.4.0-184-generic : same problem, "Loading
initrd...", and nothing happens.
I managed to boot a 4.4.0-142-generic, but bluetooth and wifi are non-
functionnal.
I mounted the /boot partition from a USB rescue drive, and it seems that all
the initrd images that got updated this morning are not bootable anymore :
- initrd.img-4.15.0-106-generic
- initrd.img-4.15.0.101-generic
- initrd.img-4.4.0-184-generic
I tried regenerating the images with update-initramfs but it's the
same : "Loading initrd" message but nothing happens.
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