On Mon, Nov 14, 2022 at 9:00 AM Ulrich Windl <Ulrich.Windl@xxxxxxxxxxxxxxxxxxxx> wrote:
>>> Mantas Mikulenas <grawity@xxxxxxxxx> schrieb am 11.11.2022 um 15:49 in
Nachricht
<CAPWNY8Xz-N6S_JwkCsr+wK7Tu92LQw+U0DCp8NbKinrTF7zXWQ@xxxxxxxxxxxxxx>:
> On Fri, Nov 11, 2022 at 4:19 PM Brian Reichert <reichert@xxxxxxxxxxx> wrote:
>
>> On Fri, Nov 11, 2022 at 08:02:00AM +0100, Ulrich Windl wrote:
>> > >>> Brian Reichert <reichert@xxxxxxxxxxx> schrieb am 10.11.2022 um
>> 23:04 in
>> > Nachricht <20221110220426.GA17371@xxxxxxxxxxx>:
>> > > I've managed to hose a SLES12 SP5 host; it starts to boot, then hangs.
>> >
>> > And what did you do to mess it up? And what do the boot messages say?
>>
>> A good question, and not specific to systemd, so I don't want to
>> pollute the list archives too much on this matter.
>>
>> 'All' I did was remove many RPMs that I arbitrarily deemed
>> unnecessary.
>>
>> I came up with a heavily trimmed-down list of SLES RPM for my SLES12
>> Sp5 environment.
>>
>> I successfully installed a server using just that trimmed-down list;
>> yay me!
>>
>> I then explored 'upgrading' a running (slight older) SP5 box, using
>> this trimmed-down list. A purposeful side effect was to uninstall
>> RPMs not in that trimmed-down list.
>>
>> This latter box begins to boot, and gets at least as far as loading
>> the initrd image, before hanging.
>>
>
> Boot with "systemd.debug-shell" and use tty9 to investigate from the inside.
Wow! never heard of that option. Is that a kind of target, or what is the mechanism?
Which of the 196 (man -k systemd | wc -l) systemd-related manual pages would describe it? ;-)
The more I read your smartass sarcastic comments here, the less I feel like staying on this list and helping *other* people with finding stuff in those 196 systemd-related manual pages. But I suppose that's what you want to achieve, so that you can snark even more about how "systemd is so complex that nobody's bothering to reply to the list anymore"?
For those who have *actually* never heard of that option, it is documented in systemd-debug-generator(8).
--
Mantas Mikulėnas
