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Can't create swapfile on btrfs #3713

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ubuntu-server-builder opened this issue May 12, 2023 · 0 comments
Closed

Can't create swapfile on btrfs #3713

ubuntu-server-builder opened this issue May 12, 2023 · 0 comments
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bug Something isn't working correctly launchpad Migrated from Launchpad

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This bug was originally filed in Launchpad as LP: #1884127

Launchpad details 
affected_projects = []
assignee = None
assignee_name = None
date_closed = None
date_created = 2020-06-18T18:48:25.197685+00:00
date_fix_committed = None
date_fix_released = None
id = 1884127
importance = undecided
is_complete = False
lp_url = https://bugs.launchpad.net/cloud-init/+bug/1884127
milestone = None
owner = falcojr
owner_name = James Falcon
private = False
status = triaged
submitter = falcojr
submitter_name = James Falcon
tags = []
duplicates = []

Launchpad user James Falcon(falcojr) wrote on 2020-06-18T18:48:25.197685+00:00

With a userdata definition like such:
#cloud-config
swap:
filename: /swap.img
size: 5000000
maxsize: 5000000

the swap file cannot be created on btrfs.

See https://wiki.archlinux.org/index.php/Swap#Swap_file
@ubuntu-server-builder ubuntu-server-builder added bug Something isn't working correctly launchpad Migrated from Launchpad labels May 12, 2023
bin456789 added a commit to bin456789/cloud-init that referenced this issue Aug 14, 2023
@bin456789
cc_mounts: Fix swapfile not works on btrfs
9771186 
To make a swapfile works on btrfs
We need to create an empty file, add "no copy-on-write" attribute
before turn it into swapfile

Fixes canonicalGH-3713
LP: #1884127
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