diff --git a/app/pages/project/instances/actions.tsx b/app/pages/project/instances/actions.tsx
index 6b50afd038..b59e09d45a 100644
--- a/app/pages/project/instances/actions.tsx
+++ b/app/pages/project/instances/actions.tsx
@@ -41,7 +41,7 @@ export const useMakeInstanceActions = (
   const opts = { onSuccess: options.onSuccess }
   const { mutateAsync: startInstanceAsync } = useApiMutation('instanceStart', opts)
   const { mutateAsync: stopInstanceAsync } = useApiMutation('instanceStop', opts)
-  const { mutate: rebootInstance } = useApiMutation('instanceReboot', opts)
+  const { mutateAsync: rebootInstanceAsync } = useApiMutation('instanceReboot', opts)
   // delete has its own
   const { mutateAsync: deleteInstanceAsync } = useApiMutation('instanceDelete', {
     onSuccess: options.onDelete,
@@ -122,15 +122,20 @@ export const useMakeInstanceActions = (
         {
           label: 'Reboot',
           onActivate() {
-            rebootInstance(instanceParams, {
-              onSuccess: () =>
-                addToast(<>Rebooting instance <HL>{instance.name}</HL></>), // prettier-ignore
-              onError: (error) =>
-                addToast({
-                  variant: 'error',
-                  title: `Error rebooting instance '${instance.name}'`,
-                  content: error.message,
+            confirmAction({
+              actionType: 'danger',
+              doAction: () =>
+                rebootInstanceAsync(instanceParams, {
+                  onSuccess: () =>
+                    addToast(<>Rebooting instance <HL>{instance.name}</HL></>), // prettier-ignore
                 }),
+              modalTitle: 'Confirm reboot instance',
+              modalContent: (
+                <p>
+                  Are you sure you want to reboot <HL>{instance.name}</HL>?
+                </p>
+              ),
+              errorTitle: `Error rebooting ${instance.name}`,
             })
           },
           disabled: !instanceCan.reboot(instance) && (
@@ -162,7 +167,7 @@ export const useMakeInstanceActions = (
         },
       ]
     },
-    [project, deleteInstanceAsync, navigate, rebootInstance]
+    [project, deleteInstanceAsync, navigate, rebootInstanceAsync]
   )
 
   return { makeButtonActions, makeMenuActions }
diff --git a/test/e2e/instance.e2e.ts b/test/e2e/instance.e2e.ts
index 8da3ba836f..e011157bbf 100644
--- a/test/e2e/instance.e2e.ts
+++ b/test/e2e/instance.e2e.ts
@@ -5,7 +5,14 @@
  *
  * Copyright Oxide Computer Company
  */
-import { clickRowAction, expect, expectRowVisible, test, type Page } from './utils'
+import {
+  clickRowAction,
+  expect,
+  expectRowVisible,
+  openRowActions,
+  test,
+  type Page,
+} from './utils'
 
 const expectInstanceState = async (page: Page, instance: string, state: string) => {
   await expectRowVisible(page.getByRole('table'), {
@@ -33,10 +40,7 @@ test('can start a failed instance', async ({ page }) => {
   await page.goto('/projects/mock-project/instances')
 
   // check the start button disabled message on a running instance
-  await page
-    .getByRole('row', { name: 'db1', exact: false })
-    .getByRole('button', { name: 'Row actions' })
-    .click()
+  await openRowActions(page, 'db1')
   await page.getByRole('menuitem', { name: 'Start' }).hover()
   await expect(
     page.getByText('Only stopped or failed instances can be started')
@@ -99,6 +103,42 @@ test('can stop a starting instance, then start it again', async ({ page }) => {
   await expectInstanceState(page, 'not-there-yet', 'running')
 })
 
+test('can reboot a running instance', async ({ page }) => {
+  await page.goto('/projects/mock-project/instances')
+  await expect(page).toHaveTitle('Instances / mock-project / Projects / Oxide Console')
+
+  await expectInstanceState(page, 'db1', 'running')
+  await clickRowAction(page, 'db1', 'Reboot')
+  await page.getByRole('button', { name: 'Confirm' }).click()
+  await expectInstanceState(page, 'db1', 'rebooting')
+  await expectInstanceState(page, 'db1', 'running')
+})
+
+test('cannot reboot a failed instance', async ({ page }) => {
+  await page.goto('/projects/mock-project/instances')
+  await expectInstanceState(page, 'you-fail', 'failed')
+  await openRowActions(page, 'you-fail')
+  await expect(page.getByRole('menuitem', { name: 'Reboot' })).toBeDisabled()
+})
+
+test('cannot reboot a starting instance, or a stopped instance', async ({ page }) => {
+  await page.goto('/projects/mock-project/instances')
+  await expectInstanceState(page, 'not-there-yet', 'starting')
+  await openRowActions(page, 'not-there-yet')
+  await expect(page.getByRole('menuitem', { name: 'Reboot' })).toBeDisabled()
+  // hit escape to close the menu so clickRowAction succeeds
+  await page.keyboard.press('Escape')
+
+  // stop it so we can try rebooting a stopped instance
+  await clickRowAction(page, 'not-there-yet', 'Stop')
+  await page.getByRole('button', { name: 'Confirm' }).click()
+  await expectInstanceState(page, 'not-there-yet', 'stopping')
+  await expectInstanceState(page, 'not-there-yet', 'stopped')
+  // reboot is still disabled for a stopped instance
+  await openRowActions(page, 'not-there-yet')
+  await expect(page.getByRole('menuitem', { name: 'Reboot' })).toBeDisabled()
+})
+
 test('delete from instance detail', async ({ page }) => {
   await page.goto('/projects/mock-project/instances/you-fail')
 
diff --git a/test/e2e/utils.ts b/test/e2e/utils.ts
index 9cb7864751..2f8437d0cd 100644
--- a/test/e2e/utils.ts
+++ b/test/e2e/utils.ts
@@ -145,12 +145,16 @@ export async function closeToast(page: Page) {
 export const clipboardText = async (page: Page) =>
   page.evaluate(() => navigator.clipboard.readText())
 
-/** Select row by `rowText`, click the row actions button, and click `actionName` */
-export async function clickRowAction(page: Page, rowText: string, actionName: string) {
+export const openRowActions = async (page: Page, name: string) => {
   await page
-    .getByRole('row', { name: rowText, exact: false })
+    .getByRole('row', { name, exact: false })
     .getByRole('button', { name: 'Row actions' })
     .click()
+}
+
+/** Select row by `rowName`, click the row actions button, and click `actionName` */
+export async function clickRowAction(page: Page, rowName: string, actionName: string) {
+  await openRowActions(page, rowName)
   await page.getByRole('menuitem', { name: actionName }).click()
 }