Arista 7010T: How to rollback to the previous image after a failed upgrade

By Sai Kiran Pandrala · reviewed by Sai Kiran Pandrala, Editor Last verified: 2026-05-30

What this guide covers

Rollback to the previous image after a failed upgrade on a Arista 7010T (Arista EOS).

Resolve

1. Confirm there's a previous image still on flash.
2. Set the boot variable to that previous image.
3. Reboot.
4. Verify the version is back to the prior release.
5. Investigate the upgrade failure separately. do not re-attempt without root cause.

CLI / commands

# Boot recovery prompt: Aboot#

# Verify image
show version

# Upgrade
install source flash:EOS-4.30.5M.swi reload now

# Save / commit
write memory

# Rollback
configure replace flash:startup-config

Recovery options

• Boot loader recovery (Aboot#)
• Rollback to the previous image with configure replace flash:startup-config
• Force failover to a known-good standby (HA platforms)

Frequently asked questions

Will this work on my specific Arista EOS version?

The procedure reflects current Arista EOS behaviour. Older releases may need minor syntax adjustments, use the CLI help (? or tab-completion) to verify.

Should I open a Arista TAC case immediately?

Open one if you suspect hardware failure or the symptom persists after a maintenance-window reload. Make sure your support entitlement is active first.

Where can I find the Arista official documentation?

https://www.arista.com/en/support/toi: search the product family + feature name.

Is this procedure safe in production?

Test in a lab or maintenance window first. Capture pre-change state so you can roll back.

Related guides

• All Arista fix guides → /arista/
• All vendor guides → /vendors/

References

• Arista support portal: https://www.arista.com/en/support
• Arista knowledge base: https://www.arista.com/en/support/toi
• Arista security advisories: https://www.arista.com/en/support/advisories-notices
• Open a case: https://www.arista.com/en/support/customer-support

Reference material, not professional advice. Validate against your specific Arista EOS version and test in a non-production environment before applying.

Identify

When this symptom shows up on a Arista device, three patterns repeat:

1. Recent firmware update changed behavior, the symptom started within a week of an OTA push. Rollback or wait for the hotfix. 2. Environmental trigger. temperature, humidity, line voltage, network changes. Look at what changed in the environment. 3. Cumulative wear, components like batteries, gaskets, fans degrade over time. Replace the consumable rather than chasing a software fix.

Knowing which pattern applies saves time on the wrong fix.

Isolate

A few things to confirm so the Arista device fix goes cleanly:

• Latest firmware downloaded if you're going to update.
• Warranty + support contract status checked: opening sealed parts may void it.
• Backup of current configuration (where applicable) taken.
• Spare parts on hand if you anticipate replacement.
• Adequate workspace, lighting, and time, rushing causes regressions.

Validate

Before you walk away from a Arista device fix, run through:

1. Reproduce the original trigger. does the issue reappear? 2. Check the device's status / health screen for any new alerts. 3. Confirm paired devices (app, hub, controller) reconnected. 4. Save / commit any configuration changes per the device's normal workflow. 5. Note the change in your maintenance log with date + firmware version.

When to call Arista support instead

Escalate if:

• The same symptom returns within 24 hours of a clean fix.
• You see physical damage (burn marks, swollen battery, cracked PCB).
• The device is in warranty and a hardware replacement is the cheaper outcome.
• Repair requires specialised tools you don't own (alignment jigs, calibration software).
• Following the official path keeps the warranty intact, which matters more than the time spent.

More frequently asked questions

Will this void my warranty?

Applying official firmware updates and following the user manual will not affect warranty. Opening sealed components, jumping safety circuits, or using third-party parts can void warranty in most jurisdictions.

What if my model isn't exactly the same revision?

Cross-check the model code on the rating plate against the manufacturer support page. Major firmware generations sometimes shift the menu path; the option is usually under a similarly-named section.

Is it safe to apply during business hours?

If the device is in production use, apply during a scheduled maintenance window. Most procedures need 2-15 minutes of downtime. Capture pre-change state so you can roll back if needed.

Can I roll this back if something breaks?

Yes for software-level changes (firmware rollback, config rollback). Hardware changes are usually one-way. Always back up settings before starting.

Are there safer alternatives for non-technical users?

Yes, the manufacturer's self-service troubleshooter (HP Smart, LG ThinQ, Samsung Members, similar) usually walks through the same steps in a guided UI. Use that first if you're not comfortable with menu paths.

Field notes from real incidents on Arista

When I work on Arista 7010T: How to rollback to the previous image after a failed upgrade the rhythm I lean on is the one I have built over years of these tickets, not a stack of generic advice. Show tech-support detail is the artifact Arista TAC expects on call one; bundle it with the agent logs before you open the ticket. CloudVision Portal alerts are noisy unless you tune them; I disable the defaults and re-enable the ones that map to actual production events.

Arista EOS lets you reload a module without reloading the chassis on most platforms: I use that capability more than people realise. EOS-API (eAPI) over HTTPS is the cleanest way to script Arista at scale; do not wrap CLI screen-scraping when eAPI returns JSON.

Tools I actually reach for

For Arista 7010T: How to rollback to the previous image after a failed upgrade on Arista the cheapest signal I can land usually comes from a known order of operations, not a kitchen-sink approach. I start with show platform hardware capacity because it is the lowest-friction way to confirm the failure is real and reproducible. If that returns ambiguous data, I escalate to show interfaces counters errors, show tech-support (capture for TAC), show running-config | include <feature>, and finally to ping vrf <vrf> <target> only when the cheaper tools cannot reach the layer the failure lives in. That ordering matches the failure surfaces I have actually seen on Arista units over the last few years, not an abstract taxonomy. The cheap signals gate the expensive ones so the investigation does not balloon into a multi-hour exercise.

Verification I run before I close the ticket

Before I mark Arista 7010T: How to rollback to the previous image after a failed upgrade resolved on a Arista unit, the verification loop below is what I actually run. Each step proves a different layer is green, and the order matters - the cheap checks gate the more expensive ones so I never burn an hour on a deep test that a shallow one would have failed in seconds.

show spanning-tree summary  # confirm topology stability

If that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.

show interfaces <int> | include errors|drops|CRC

If that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.

show bgp summary  # confirm session state after route changes

If that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.

show ip route <prefix>  # confirm best path post-change

Only when every line above runs clean do I close the ticket and update the runbook with the timestamps. A green verification that nobody can reproduce is not a fix, it is luck waiting to regress.

Where I check first when the docs disagree

When two sources contradict each other on a Arista detail, the disambiguation order I lean on is stable across products and across years. github.com/aristanetworks for open-source tooling like Ansible roles is where I start for the ground-truth view. Arista TAC knowledge base is where I start for the ground-truth view. arista.com/en/support/product-documentation for EOS command references is where I start for the ground-truth view. Random blog posts and reseller wikis are signal, not ground truth, and I treat them as such until the references above either confirm or contradict the claim. The cost of trusting an unauthoritative source on Arista 7010T: How to rollback to the previous image after a failed upgrade is rarely worth the time it saved.

Pitfalls I have walked into on this exact path

The shortcuts that look smart on Arista 7010T: How to rollback to the previous image after a failed upgrade have a habit of biting back. The pitfalls below are the ones I have personally walked into on a Arista unit, not things I read about. Show tech-support detail is the artifact Arista TAC expects on call one; bundle it with the agent logs before you open the ticket. Arista EOS lets you reload a module without reloading the chassis on most platforms, I use that capability more than people realise. When in doubt I revert to the slower path that the manual prescribes - the time I save by skipping it is always smaller than the time I spend cleaning up afterwards.

What I tell the next on-call

When I hand Arista 7010T: How to rollback to the previous image after a failed upgrade off to the next person on rotation, the three lines I leave in the runbook are these. First, the symptom signature on Arista - not a paraphrase, the exact string that surfaces in logs or on the screen. Second, the diagnostic that gave the highest signal in the least time. Third, the exact verification command whose green output justified closing the ticket. That trio is what turns a one-off fix into a runbook entry the next engineer can use without paging me at three in the morning.

I also add a one-line note on the cost of getting this wrong. For Arista 7010T: How to rollback to the previous image after a failed upgrade on a Arista unit, the cost is rarely the replacement part or the patch itself. It is the downtime, the second site visit, and the trust deficit you spend with whoever owns the asset when the fix does not hold. That framing keeps the next on-call from choosing the cheap-looking shortcut that ends up costing the most in elapsed hours and goodwill.

Related fixes

Related guides worth a look while you sort this one out:

• Arista 7050X3: How to rollback to the previous image after a failed upgrade
• Arista 7060X4: How to rollback to the previous image after a failed upgrade
• Arista 7060X5: How to rollback to the previous image after a failed upgrade
• Arista 7060X6: How to rollback to the previous image after a failed upgrade
• Arista 7280R: How to rollback to the previous image after a failed upgrade
• Arista 7280R3 (routing role): How to rollback to the previous image after a failed upgrade