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Subject: [pve-devel] applied: [PATCH installer v2] fix #5984: unconfigured:
do not reboot if auto-installer fails by default
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Am 08.01.25 um 16:28 schrieb Daniel Kral:
> An unintended side effect was introduced in 21ef304, which caused the
> auto-installer to reboot on error, even though the answer file option
> `general.reboot_on_error` has been set to `false`.
>
> When an error signal is received inside `unconfigured.sh` (after the
> trap statement `trap 'err_reboot' ERR`), it causes any failing command
> to execute the `err_reboot` function and therefore dropping the user in
> the debug shell. One exception, as described under `trap` in bash(1), is
> for a command being part of the test in an if statement. Therefore, if
> the auto-installer failed, it won't trap to `err_reboot`.
>
> Therefore, create a flag file "/run/proxmox-reboot-on-error" if the
> auto-installer should reboot on error. If it should, the auto-installer
> will be rebooted on error. If not, artificially trap to `err_reboot` to
> drop into the debug shell.
>
> The shell check at `err_reboot` can now be removed since the function is
> called directly.
>
> Fixes: 21ef304 ("unconfigured.sh: run proxmox-post-hook after successful auto-install")
> Signed-off-by: Daniel Kral <d.kral@proxmox.com>
> ---
> changes since v1 (thanks @Christoph):
> - add a flag file "/run/proxmox-reboot-on-error"
> - fix issue where `reboot_on_error` is ignored in general
> - removing the shell check since `err_reboot` is called directly
>
> ---
>
> Testing
>
> I've tested this by booting the installer in debug mode, setting up DHCP
> and patching the changes below. Otherwise I tested 8 possible scenarios,
> where I simulated a failing auto install through trying to install a ZFS
> RAID10 on only one disk and simulated a failing
> post-installation-webhook by stopping the web server that handles the
> POST request.
>
> The following scenarios rebooted because of successful execution:
>
> 1. `reboot_on_error = false`, successful auto install
> 2. `reboot_on_error = false`, successful post-installation-webhook
> 3. `reboot_on_error = true`, successful auto install
> 4. `reboot_on_error = true`, successful post-installation-webhook
>
> The following scenarios rebooted because of an error:
>
> 5. `reboot_on_error = true`, error during auto install
> 6. `reboot_on_error = true`, error during post-installation-webhook
>
> And the following scenarios dropped into the debug shell:
>
> 7. `reboot_on_error = false`, error during auto install
> 8. `reboot_on_error = false`, error during post-installation-webhook
>
> .../src/bin/proxmox-auto-installer.rs | 23 ++++++++-----------
> unconfigured.sh | 14 ++++++++---
> 2 files changed, 20 insertions(+), 17 deletions(-)
>
>
applied, thanks!
I made two small follow-ups, one added a bit more output for cases where the
auto-installer exited with a failure, and as it's only slightly tangentially
related to your patch, so saw no reason for a v3 there, and the other one,
which adds error handling for the flag-file creation, I noticed only after
having your change pushed.
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