[action] [PR:25332] [mgmt-vrf]: Fix mgmt VRF configuration failure#25978
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#### Why I did it
Adding mgmt vrf is failing on latest 202511 images after trixie update. Older versions of iproute2 package on bookworm (6.1.0-3) has /etc/iproute2/rt_tables.d directory because of which ifupdown2_vrf_map.conf generated by ifupdown2 in this directory always succeeded.
New version of iproute2 (6.15.0-1) in trixie doesn't have /etc/iproute2 directory, because of which vrf map conf generation failing, in-turn resulting in mgmt VRF creation failure.
##### Work item tracking
- Microsoft ADO **(number only)**:
#### How I did it
Fix is to ensure /etc/iproute2/rt_tables.d directory present before generating ifupdown2_vrf_map.conf in ifupdown2 vrf addon.
#### How to verify it
Create mgmt VRF and observe the failure without the fix.
```bash
sudo config vrf add mgmt
show mgmt-vrf
ManagementVRF : Enabled
Management VRF interfaces in Linux:
Device "mgmt" does not exist.
```
#### Which release branch to backport (provide reason below if selected)
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- [x] 202006
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- [ ] 202305
- [ ] 202311
- [ ] 202405
- [ ] 202411
- [ ] 202505
- [X] 202511
#### Tested branch (Please provide the tested image version)
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- e.g.
- [x] 20201231.100
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- [X] 202511
#### Description for the changelog
Fixed mgmt VRF addition failure after trixie upgrade
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Signed-off-by: Sonic Build Admin <[email protected]>
#### A picture of a cute animal (not mandatory but encouraged)
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Original PR: #25332 |
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/azp run Azure.sonic-buildimage |
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Azure Pipelines successfully started running 1 pipeline(s). |
vmittal-msft
approved these changes
Mar 12, 2026
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Why I did it
Adding mgmt vrf is failing on latest 202511 images after trixie update. Older versions of iproute2 package on bookworm (6.1.0-3) has /etc/iproute2/rt_tables.d directory because of which ifupdown2_vrf_map.conf generated by ifupdown2 in this directory always succeeded.
New version of iproute2 (6.15.0-1) in trixie doesn't have /etc/iproute2 directory, because of which vrf map conf generation failing, in-turn resulting in mgmt VRF creation failure.
Work item tracking
How I did it
Fix is to ensure /etc/iproute2/rt_tables.d directory present before generating ifupdown2_vrf_map.conf in ifupdown2 vrf addon.
How to verify it
Create mgmt VRF and observe the failure without the fix.
Which release branch to backport (provide reason below if selected)
Tested branch (Please provide the tested image version)
Description for the changelog
Fixed mgmt VRF addition failure after trixie upgrade
Link to config_db schema for YANG module changes
Signed-off-by: Sonic Build Admin [email protected]
A picture of a cute animal (not mandatory but encouraged)