Problem Description
Unable to upgrade NAS Proxies from UI
Cause
The issue was identified as a noexec permission setting on the /tmp mount point, which prevented the upgrade process from executing files necessary for the update..
Traceback
level=info ts=2024-10-17T14:02:51.828027481Z filename=commandhandler.go:325 Module=CommandHandler method=upgradeDevice message="req: &{SHA2Checksum:1fb3b52d5dceb4bf2f091c697b18f43cd85dc49179060d16e7adcffefa9c2627 PrefixPatternData:map[branchName:v0.3.27 deviceType:2 packageType:1] PrefixKey:DevicePackage PackageName:EnterpriseWorkloads-UnifiedAgent-7.0.2-552895-x86_64.rpm Version:7.0.2::r552895}"level=warn ts=2024-10-17T14:02:51.836406821Z filename=signatureutils.go:58 Package=signatureutils method=isSignatureVerificationEnabled message="binary signature verification is disabled"level=warn ts=2024-10-17T14:02:51.836484031Z filename=signatureutils_linux.go:33 Package=signatureutils method=VerifyBinarySignature binary=EnterpriseWorkloadsUpgrader message="binary signature verification is disabled"level=info ts=2024-10-17T14:02:51.851720479Z filename=commandhandler_linux.go:49 Module=CommandHandler method=spawnUpgrader message="spawning upgrader with cmd /usr/bin/systemd-run --scope --slice=upgrade_EnterpriseWorkloads /tmp/EnterpriseWorkloadsUpgrader eyJTSEEyQ2hlY2tzdW0iOiIxZmIzYjUyZDVkY2ViNGJmMmYwOTFjNjk3YjE4ZjQzY2Q4NWRjNDkxNzkwNjBkMTZlN2FkY2ZmZWZhOWMyNjI3IiwicHJlZml4X3BhdHRlcm5fZGF0YSI6eyJicmFuY2hOYW1lIjoidjAuMy4yNyIsImRldmljZVR5cGUiOiIyIiwicGFja2FnZVR5cGUiOiIxIn0sInByZWZpeF9rZXkiOiJEZXZpY2VQYWNrYWdlIiwicGFja2FnZU5hbWUiOiJFbnRlcnByaXNlV29ya2xvYWRzLVVuaWZpZWRBZ2VudC03LjAuMi01NTI4OTUteDg2XzY0LnJwbSIsInZlcnNpb24iOiI3LjAuMjo6cjU1Mjg5NSJ9Cg=="Resolution
To resolve the issue, the noexec permission on the /tmp mount point must be removed to allow executable files to run from this directory. Follow these steps to update the permissions on /tmp:
Verify if
/tmpis Mounted with thenoexecOptionRun the following command to check the current mount options for
/tmp:
mount | grep /tmpExample Output (with noexec):
tmpfs on /tmp type tmpfs (rw,nosuid,noexec,relatime)If the output includes noexec, this confirms that the permission setting is causing the issue.
Temporarily Remount /tmp with Exec Permissions:
To resolve the issue temporarily (until the next reboot), remount /tmp with exec permissions:
sudo mount -o remount,exec /tmpEffect of the Command:
This command removes the noexec restriction, allowing binaries to execute in /tmp for the current session.
Example Use Case:
After running the command, you can retry the NAS Proxy upgrade process, which should now proceed without errors.
Permanently Update /etc/fstab to Allow Exec on /tmp:
To make the permission change permanent, modify the /etc/fstab file:Open the /etc/fstab file in a text editor:
sudo nano /etc/fstabLocate the line that mounts /tmp. For example:
tmpfs /tmp tmpfs defaults,noexec,nosuid 0 0Remove the noexec option to allow executable permissions:
tmpfs /tmp tmpfs defaults,exec,nosuid 0 0Save and exit the editor.
Remount /tmp to apply the changes immediately:
sudo mount -o remount /tmp
Retry the NAS Proxy Upgrade:
Once the/tmpdirectory allows executable permissions:Return to the Phoenix UI and initiate the NAS Proxy upgrade.
Monitor the logs to confirm that the upgrade process progresses smoothly.
Verification
After the upgrade, check the Phoenix UI to confirm that the NAS Proxy version has been updated successfully.
Verify the logs for any messages indicating successful completion of the process.
Example Scenario:
Before Fix: The NAS Proxy upgrade fails with a permission error due to the noexec setting on /tmp.
After Applying Fix: By temporarily remounting /tmp with exec and permanently updating /etc/fstab, the upgrade proceeds successfully, and the issue is resolved.
By following these steps, you ensure that the /tmp directory is configured to support executable permissions, which are essential for the NAS Proxy upgrade process.