Ubuntu 21.10 (Impish Indri) has reached end of life, so this bug will
not be fixed for that specific release.
** Changed in: nvidia-graphics-drivers-470 (Ubuntu Impish)
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1947043
Title:
nvidia drivers do not update initramfs properly
Status in linux-restricted-modules package in Ubuntu:
New
Status in nvidia-graphics-drivers-470 package in Ubuntu:
New
Status in linux-restricted-modules source package in Bionic:
New
Status in nvidia-graphics-drivers-470 source package in Bionic:
New
Status in linux-restricted-modules source package in Focal:
New
Status in nvidia-graphics-drivers-470 source package in Focal:
New
Status in linux-restricted-modules source package in Hirsute:
New
Status in nvidia-graphics-drivers-470 source package in Hirsute:
Won't Fix
Status in linux-restricted-modules source package in Impish:
Won't Fix
Status in nvidia-graphics-drivers-470 source package in Impish:
Won't Fix
Bug description:
When Nvidia drivers are installing, they are only rebuilding the
initramfs for the currently running kernel and/or the newest kernel
when installed. Unfortunately, that means that if one has two kernel
flavors installed (such as -generic and -lowlatency) this means that
the initramfs is only getting rebuild for the currently installed
kernel flavor and its newest version. When a user then switches to the
other kernel flavor, their video fails because the kernel they
switched to does not have the kernel module in the initramfs despite
the kernel module being compiled and available.
The root cause seems to be in nvidia-kernel-common-*.postinst and
nvidia-dkms-*.postinst:
# Update initramfs so that the blacklist ends up in the initramfs
if [ -x /usr/sbin/update-initramfs ]; then
/usr/sbin/update-initramfs -u
if [ -n "$NEWEST_KERNEL" ] && [ ${CURRENT_KERNEL} !=
${NEWEST_KERNEL} ]; then
# This can fail when dealing with a chroot see LP: #556653
/usr/sbin/update-initramfs -u -k $CURRENT_KERNEL
fi
fi
Instead of looking for the conditions to be met, this should be
rebuilding for *all* installed kernels, despite the longer amount of
time needed to do so in some cases. The rationale is that systems
should work as expected and saving time, in this case, can cause that
not to happen. As such the postinst scripts should do the following in
lieu of the above:
/usr/sbin/update-initramfs -u -k all
This ensures that all installed kernel initramfs images get rebuilt,
which adds increased safety at the expense of speed during the
install. This will also prevent a race condition where, if a kernel
and the nvidia driver are updated at the same time, that the proper
initramfs image will exist despite which order the nvidia driver and
kernel get installed.
ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: nvidia-driver-470 470.74-0ubuntu1
ProcVersionSignature: Ubuntu 5.13.0-19.19-lowlatency 5.13.14
Uname: Linux 5.13.0-19-lowlatency x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset
nvidia
ApportVersion: 2.20.11-0ubuntu70
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Wed Oct 13 13:12:23 2021
InstallationDate: Installed on 2021-03-20 (206 days ago)
InstallationMedia: Ubuntu-Studio 21.04 "Hirsute Hippo" - Alpha amd64
(20210320)
SourcePackage: nvidia-graphics-drivers-470
UpgradeStatus: Upgraded to impish on 2021-06-13 (122 days ago)
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