Arch Linux started failing during pacstrapping saying "error: could not open file [..]/core.db.part: Permission denied"

[hartwork]

[..]
Pacstrapping into "/tmp/tmp3v4z7for/pacstrap_root/root.x86_64/mnt/arch_root/"...
# chroot /tmp/tmp3v4z7for/pacstrap_root/root.x86_64 pacstrap /mnt/arch_root/
==> Creating install root at /mnt/arch_root/
==> Installing packages to /mnt/arch_root/
:: Synchronizing package databases...
error: could not open file /mnt/arch_root/var/lib/pacman/sync/download-XM1mgm/core.db.part: Permission denied
error: failed to setup a download payload for core.db
error: failed to synchronize all databases (failed to retrieve some files)
==> ERROR: Failed to install packages to new root
[..]

If anyone gets a chance to debug this before I do, that would be great 🙏

PS: For recent related CI error logs:

• https://github.com/hartwork/image-bootstrap/actions/workflows/directory-bootstrap-arch.yml?query=is%3Afailure
• https://github.com/hartwork/image-bootstrap/actions/workflows/image-bootstrap-arch.yml?query=is%3Afailure

[ctx]

I think this issue is tracked here: https://gitlab.archlinux.org/archlinux/arch-install-scripts/-/issues/68

[hartwork]

@ctx that's a great link — thank you!

I have a candidate pull request now at #516 but it turns out that Arch OpenStack images have grown additional issues in the mean time — #515 — unfortunately.