Differential D24583

Set use_nvd=0 in EC2 AMIs
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Authored by cperciva on Apr 26 2020, 11:54 PM.

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imp
gjb

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rS360396: Set use_nvd=0 in EC2 AMIs.

Summary

FreeBSD is in the process of switching from nvd(4) to nda(4) as the disk device front-end to NVMe. Changing the default in the kernel is tricky since existing systems may have /dev/nvd* hard-coded e.g. in /etc/fstab; however, there's no reason to not change the default in HEAD for *new* systems.

At present I have no intention of MFCing this to stable branches, since someone might reasonably expect scripts they use for launching and configuring FreeBSD 12.1 instances to work with FreeBSD 12.2 AMIs, for example.

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rS FreeBSD src repository - subversion

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Buildable 30744

Event Timeline

cperciva requested review of this revision.Apr 26 2020, 11:54 PM

cperciva created this revision.

Harbormaster completed remote builds in B30744: Diff 71026.Apr 26 2020, 11:54 PM

Warner: We discussed this on IRC; please confirm that the comment in the code and what I wrote in the "summary" above make sense.

Release engineers: This is under /release/ so I figured you'd want to look at it before I commit to HEAD...

gjb accepted this revision.Apr 27 2020, 1:22 PM

This revision is now accepted and ready to land.Apr 27 2020, 1:22 PM

imp accepted this revision.Apr 27 2020, 9:01 PM

Closed by commit rS360396: Set use_nvd=0 in EC2 AMIs. (authored by cperciva). · Explain WhyApr 27 2020, 9:44 PM

This revision was automatically updated to reflect the committed changes.

cperciva added a commit: rS360396: Set use_nvd=0 in EC2 AMIs..

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release/

tools/

4 lines

Diff 71026

release/tools/ec2.conf

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