** Description changed:
[Impact]
* update-initramfs -u fails on arm64 m6g instances in AWS
[Test Case]
* launch m6g instance in AWS
* install libc6-lse (if not installed)
* run $ update-initramfs -u
* It should suceed
+ * It should contain pthread, and libgcc_s libraries
[Regression Potential]
* Adding one more path to libgcc_s1 resolution. This will still fail if
something compiles libc6 for _two_ optimisations like
/lib/$arch/foo/bar/libpthread.
[Other Info]
* libphtread dlopens libgcc_s1, thus whenever libpthread is needed in
the initrd libgcc_s1 must be copied in too. However the logic to find
matching libgcc_s1 is broken for optimizied builds of libc6 without
optimized build of libgcc_s1. I think libpthread should link against
libgcc_s1 to prevent these issues.
* Original bug report
With Ubuntu 20.04 on AWS m6g.* instance family, installing libc6-lse
lets update-initramfs always fail with the following error:
ubuntu@ip-10-18-23-79:~$ sudo update-initramfs -u
update-initramfs: Generating /boot/initrd.img-5.4.0-1011-aws
E: /usr/share/initramfs-tools/hooks/btrfs failed with return 1.
update-initramfs: failed for /boot/initrd.img-5.4.0-1011-aws with 1.
## Steps to reproduce (on AWS)
### With focal 20200423 AMI
1. Find the following AMI and launch on m6g instance family
ubuntu/images/hvm-ssd/ubuntu-focal-20.04-arm64-server-20200423
2. Run: sudo apt update && sudo apt install libc6-lse
3. Try: sudo update-initramfs -u
### With focal 20200522 AMI
1. Find the following AMI and launch on m6g instance family
ubuntu/images/hvm-ssd/ubuntu-focal-20.04-arm64-server-20200522
2. Try: sudo update-initramfs -u
## Note
- The entire log of the above steps performed on 20200423 AMI is attached.
- Latest cloud-image AMI
"ubuntu/images/hvm-ssd/ubuntu-focal-20.04-arm64-server-20200522" includes
libc6-lse. On 20200522 AMI, this doesn't reproduce after removing libc6-lse
manually.
- This doesn't reproduce on EC2 a1.* instance family.
## Expected behavior
Does not fail.
## Background to find this bug
As the 20200522 AMI includes libc6-lse out-of-the-box & apt-get upgrade
pulls newer package that triggers update-initramfs, apt-get upgrade
always fail on 20200522 AMI.
the following is an apport report on 20200423 AMI:
----
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27
Architecture: arm64
CasperMD5CheckResult: skip
Date: Wed May 27 09:52:16 2020
Dependencies:
gcc-10-base 10-20200411-0ubuntu1
libc6 2.31-0ubuntu9
libcrypt1 1:4.4.10-10ubuntu4
libgcc-s1 10-20200411-0ubuntu1
libidn2-0 2.2.0-2
libunistring2 0.9.10-2
DistroRelease: Ubuntu 20.04
Ec2AMI: ami-061102f51d47b1c24
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: ap-northeast-1c
Ec2InstanceType: m6g.medium
Ec2Kernel: unavailable
Ec2Ramdisk: unavailable
Package: libc6-lse 2.31-0ubuntu9
PackageArchitecture: arm64
ProcCpuinfoMinimal:
processor : 0
BogoMIPS : 243.75
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp
asimdhp cpuid asimdrdm lrcpc dcpop asimddp ssbs
CPU implementer : 0x41
CPU architecture: 8
CPU variant : 0x3
CPU part : 0xd0c
CPU revision : 1
ProcEnviron:
LANG=C.UTF-8
TERM=screen-256color
PATH=(custom, no user)
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 5.4.0-1009.9-aws 5.4.30
SourcePackage: glibc
Tags: focal ec2-images
Uname: Linux 5.4.0-1009-aws aarch64
UpgradeStatus: No upgrade log present (probably fresh install)
** Changed in: initramfs-tools (Ubuntu Bionic)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1880853
Title:
libc6-lse lets update-initramfs fail on AWS m6g instances
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