apport information
** Tags added: apport-collected wily
** Description changed:
Neither 4.4rc3 nor 4.3rc4 will boot on my Dell XPS 15 (9550). 4.3 boots
fine.
The boot process halts with "ALERT! /dev/disk/by-uuid/<uuid> does not
exist", although the UUID does exist, and other kernels boot fine.
I'm attaching a screenshot of the console boot log. I apologize that it
is hard to read, because my screen is 3840x2160 and each line is less
that 2mm high.
Here's my grub stanza:
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod
lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root
7e2ed448-28a7-465e-a5b0-58db19b2711a
else
search --no-floppy --fs-uuid --set=root
7e2ed448-28a7-465e-a5b0-58db19b2711a
fi
echo 'Loading Linux 4.4.0-040400rc4-generic ...'
linux /boot/vmlinuz-4.4.0-040400rc4-generic
root=UUID=7e2ed448-28a7-465e-a5b0-58db19b2711a ro quiet splash
i915.preliminary_hw_support=1 i915.enable_ips=0 $vt_handoff
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-4.4.0-040400rc4-generic
Possibly related is the following warning when i update-initramfs:
$ sudo update-initramfs -u
update-initramfs: Generating /boot/initrd.img-4.4.0-040400rc4-generic
W: Possible missing firmware /lib/firmware/i915/skl_guc_ver4.bin for module
i915
I have also reported this bug upstream:
https://bugzilla.kernel.org/show_bug.cgi?id=108981
Please let me know what other info would be helpful. Thanks!
+ ---
+ ApportVersion: 2.19.1-0ubuntu5
+ Architecture: amd64
+ CurrentDesktop: Unity
+ DistroRelease: Ubuntu 15.10
+ InstallationDate: Installed on 2015-11-18 (20 days ago)
+ InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
+ Package: linux (not installed)
+ Tags: wily
+ Uname: Linux 4.3.0-040300-generic x86_64
+ UnreportableReason: The running kernel is not an Ubuntu kernel
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo users video
wireshark
+ _MarkForUpload: True
** Attachment added: "JournalErrors.txt"
https://bugs.launchpad.net/bugs/1524122/+attachment/4531711/+files/JournalErrors.txt
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https://bugs.launchpad.net/bugs/1524122
Title:
XPS 15 (9550) Won't boot with 4.4
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