[systemd-devel] Backup the current boot logs in raw format

[Francis Moreau]

On Thu, Aug 1, 2019 at 9:45 AM Zbigniew Jędrzejewski-Szmek
<zbyszek at in.waw.pl> wrote:
>
> On Thu, Aug 01, 2019 at 09:11:19AM +0200, Francis Moreau wrote:
> > On Wed, Jul 24, 2019 at 4:08 PM Zbigniew Jędrzejewski-Szmek
> > <zbyszek at in.waw.pl> wrote:
> > > you can export and write to a journal file with:
> > >   journalctl -o export ... | /usr/lib/systemd/systemd-journal-remote -o /tmp/foo.journal -
> > > This has the advantage that you can apply any journalctl filter where
> > > the dots are, e.g. '-b'.
> >
> > This doesn't look to work correctly:
> >
> > $ journalctl -b | head
> > -- Logs begin at Thu 2017-04-13 14:05:51 CEST, end at Thu 2019-08-01
> > 08:51:39 CEST. --
> > Mar 25 06:51:35 crapovo kernel: microcode: microcode updated early to
> > revision 0x25, date = 2018-04-02
> >
> > $ journalctl -o export -b | /usr/lib/systemd/systemd-journal-remote -o
> > /tmp/foo.journal -
> > $ journalctl -b --file=/tmp/foo.journal | head
> > -- Logs begin at Sat 2019-06-22 18:32:31 CEST, end at Thu 2019-08-01
> > 08:45:45 CEST. --
> > Jun 22 18:32:31 crapovo polkitd[1278]: Unregistered Authentication
> > Agent for unix-process:7300:772806437 (system bus name :1.4562, object
> > path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale
> > en_US.UTF-8) (disconnected from bus)
> >
> > As you can see, the start is not the same.
> >
> > Also are foo.journal data compressed ?
>
> What does "ls /tmp/foo*" say?
>

/tmp/foo at 4e9f5da4aaac4433bc8744fe49e25b5a-0000000000000001-000584e4cc1ef61f.journal
 /tmp/foo.journal

-- 
Francis