Ubuntu put it at lz4 by default, so my gut tells me that'll give the
fastest boot time. I didn't change lz4 to anything, just ran this
command to get rid of the error:
sudo update-initramfs -c -k $(uname -r)
I believe you have to run this command everytime certain packages are
updated.
Runnning: Ubuntu 20.04.1
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1835660
Title:
initramfs unpacking failed
Status in initramfs-tools package in Ubuntu:
Invalid
Status in linux package in Ubuntu:
Confirmed
Bug description:
"initramfs unpacking failed: Decoding failed", message appears on
boot up.
If I "update-initramfs" using gzip instead of lz, then boot up passes
without decoding failed message.
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However, we currently believe that the decoding error reported in
dmesg is actually harmless and has no impact on usability on the
system.
Switching from lz4 to gzip compression, simply papers over the
warning, without any benefits, and slows down boot.
Kernel should be fixed to correctly parse lz4 compressed initrds, or
at least lower the warning, to not be user visible as an error.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1835660/+subscriptions
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