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Bug#990430: amazon-ec2-utils: fails to install udev helper utilities

Package: amazon-ec2-utils
Version: 1.3+git20200518-2
Severity: normal

The primary purpose of the amazon-ec2-utils package is to install some udev
rules to configure various hardware conveniences.  For example, these
install symlinks providing compatibility symlinks for block devices such
that /dev/sda can be used even on Xen-based instances that present the first
volume as /dev/xvda.

Some of the functionality relies on external programs.

The issue is that two of the relevant helper programs are not actually
included in the current package, leaving the following two udev rules
nonfunctional and logging errors when they're triggered:
KERNEL=="xvd*", PROGRAM="/sbin/ec2udev-vbd %k", SYMLINK+="%c"
SUBSYSTEM=="cpu", ACTION=="add", RUN+="/sbin/ec2udev-vcpu $devpath"

Logs from the ec2udev-vcpu rule show the following failure at boot:
Jun 28 21:38:04 debian systemd-udevd[236]: cpu1: Process '/sbin/ec2udev-vcpu /devices/system/cpu/cpu1' failed with exit code 1.
Jun 28 21:38:04 debian systemd-udevd[247]: cpu0: Process '/sbin/ec2udev-vcpu /devices/system/cpu/cpu0' failed with exit code 1.

My inclination is to fix this by dropping 52-ec2-vcpu.rules altogether,
since it doesn't work as expected anyway on any instance configuration we

I'm inclined to fix 51-ec2-hvm-devices.rules by adding /sbin/ec2udev-vbd,
since the functionality could still be useful.  On the other hand, we
haven't supported this functionality in the past and nobody seems to have
cared, so dropping those rules would also be an option.


-- System Information:
Debian Release: 11.0
  APT prefers testing-security
  APT policy: (500, 'testing-security'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-7-amd64 (SMP w/4 CPU threads)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages amazon-ec2-utils depends on:
ii  curl     7.74.0-1.2
ii  python3  3.9.2-3

amazon-ec2-utils recommends no packages.

amazon-ec2-utils suggests no packages.

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