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Documentation, debugging #244

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Aug 29, 2023
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Documentation, debugging #244

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Added a small paragraph to the debugging section in the doc, for remo…
Aug 29, 2023
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Add manpage section name
anatol Aug 29, 2023
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14 changes: 14 additions & 0 deletions docs/manpage.md
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Expand Up @@ -191,6 +191,20 @@ If you have a problem with booster boot tool you can enable debug mode to get mo
information about what is going on. Just add `booster.log=debug,console` kernel parameter and booster
provide additional logs.

### Use TFTP to download logs for unbootable device
In case of a boot failure, when the devices are missing, logs can still be retrieved from busybox using the network.
First, set up a tftp server (port 69) on another machine/VM. For example on Archlinux, `pacman -S atftp; systemctl start atftpd`.
Then, edit `/etc/booster.yaml` and add [network support](#config-file) and busybox (`extra_files: busybox`).
Regenerate the initramfs and reboot. Once inside busybox, get the logs and send them to the tftp server:

$ dmesg >boot.log
$ lsmod >mods.log
$ tftp -pl boot.log <server ip>
$ tftp -pl mods.log <server ip>

The logs will be in `/srv/atftp` on the server.


## EXAMPLES
Create an initramfs file specific for the current kernel/host. The output file is booster.img:

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