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fix: Try to lock the crypt device around FS creation #10619

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Merged
Bownairo merged 3 commits into from
Jul 3, 2026
Merged

fix: Try to lock the crypt device around FS creation #10619

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d73dec3
Try to lock the crypt device around FS creation
Bownairo Jul 1, 2026
ae66e9b
Add an explicit settle, and fixup ordering
Bownairo Jul 1, 2026
97708b2
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Bownairo Jul 3, 2026
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6 changes: 5 additions & 1 deletion ic-os/components/guestos/init/setup-encryption/setup-var-encryption.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,8 @@ else
/opt/ic/bin/guest_disk crypt-format var "$VAR_PARTITION"
/opt/ic/bin/guest_disk crypt-open var "$VAR_PARTITION"
echo "Populating /var filesystem in ${VAR_PARTITION} on first boot."
mkfs.ext4 -F /dev/mapper/var_crypt -d /var
# Prevent udev from processing the device while we format it.
udevadm lock --device=/dev/mapper/var_crypt mkfs.ext4 -F /dev/mapper/var_crypt -d /var
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Bownairo marked this conversation as resolved.
# Fix root inode (mkfs fails to set correct security context).
echo "ea_set / security.selinux system_u:object_r:var_t:s0\\000" | debugfs -w /dev/mapper/var_crypt

Expand Down Expand Up @@ -80,4 +81,7 @@ else
# and continue operating.
cryptsetup luksClose old_var_crypt || echo "Failed to close old /var crypto partition"
fi

# Explicitly trigger udev now that the device should be ready.
udevadm trigger --settle --action=change /dev/mapper/var_crypt
fi
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