Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.user > #243273

Re: GRUB really slow to boot

Show all headers | View raw

On Sun, 19 Dec 2021, Greg Wooledge wrote:

> On Sun, Dec 19, 2021 at 07:19:40AM +0000, Tim Woodall wrote:
>> Check if the kernel log jumps from 1/1/70 to today as it boots. That
>> would point to the RTC being bad when the kernel first starts.
>
> Not sure which log I'd need to look at for this information.  dmesg only
> reports time in relative seconds from the kernel's boot.

This is the sort of thing I meant (this is a rpi which doesn't have an
RTC at all so this is expected) - I've just rebooted to show this:

This is from daemon.log but any log should do.


Dec 19 14:52:42 rpi4-minimal haveged: haveged: Stopping due to signal 15 
Jan  1 00:00:23 rpi4-minimal haveged: haveged starting up
...
Jan  1 00:00:23 rpi4-minimal ntpd[1522]: Listening on routing socket on fd #24 for interface updates
Jan  1 00:00:23 rpi4-minimal ntpd[1522]: kernel reports TIME_ERROR: 0x41: Clock Unsynchronized
Jan  1 00:00:23 rpi4-minimal ntpd[1522]: kernel reports TIME_ERROR: 0x41: Clock Unsynchronized
Jan  1 01:00:27 rpi4-minimal dbus-daemon[1664]: [session uid=103 pid=1659] Activating service name='org.xfce.Xfconf' requested by ':1.1' (uid=103 pid=1645 comm="x-window-manager ")
Jan  1 01:00:27 rpi4-minimal dbus-daemon[1664]: [session uid=103 pid=1659] Successfully activated service 'org.xfce.Xfconf'
Dec 19 14:53:40 rpi4-minimal dhclient[1176]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6

The clock corrects itself when ntp starts. I'm not exactly clear why the
clock jumps by an hour first but I don't really care...

>
> /var/log/kern.log.1 shows this:
>
> Dec 18 09:58:48 unicorn kernel: [6031224.812397] xor: automatically using best c
> hecksumming function   avx
> Dec 18 09:58:48 unicorn kernel: [6031224.944868] Btrfs loaded, crc32c=crc32c-int
> el
> Dec 18 11:17:28 unicorn kernel: [    0.000000] microcode: microcode updated earl
> y to revision 0xea, date = 2021-01-05
> Dec 18 11:17:28 unicorn kernel: [    0.000000] Linux version 5.10.0-10-amd64 (de
> bian-kernel@lists.debian.org) (gcc-10 (Debian 10.2.1-6) 10.2.1 20210110, GNU ld
> (GNU Binutils for Debian) 2.35.2) #1 SMP Debian 5.10.84-1 (2021-12-08)
>
> Of course, the human-readable timestamps on the left come from syslog,
> which is a userspace process that is launched after the clock is
> initialized from whatever sources (not sure exactly when NTP kicks in).

Looks to me at first glance that the clock was right - so scratch my
guess that it could be a dead battery on the motherboard.

Tim.

Back to linux.debian.user | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

GRUB really slow to boot Greg Wooledge <greg@wooledge.org> - 2021-12-18 17:10 +0100
  Re: GRUB really slow to boot James Dutton <james.dutton@gmail.com> - 2021-12-18 23:30 +0100
    Re: GRUB really slow to boot Greg Wooledge <greg@wooledge.org> - 2021-12-18 23:40 +0100
      Re: GRUB really slow to boot James Dutton <james.dutton@gmail.com> - 2021-12-19 00:50 +0100
        Re: GRUB really slow to boot Greg Wooledge <greg@wooledge.org> - 2021-12-19 01:00 +0100
          Re: GRUB really slow to boot James Dutton <james.dutton@gmail.com> - 2021-12-19 14:00 +0100
            Re: GRUB really slow to boot Greg Wooledge <greg@wooledge.org> - 2021-12-19 15:20 +0100
          Re: GRUB really slow to boot Curt <curty@free.fr> - 2021-12-19 15:20 +0100
            Re: GRUB really slow to boot Greg Wooledge <greg@wooledge.org> - 2021-12-19 15:30 +0100
              Re: GRUB really slow to boot James Dutton <james.dutton@gmail.com> - 2021-12-19 15:40 +0100
      Re: GRUB really slow to boot Felix Miata <mrmazda@earthlink.net> - 2021-12-19 04:10 +0100
  Re: GRUB really slow to boot Dan Ritter <dsr@randomstring.org> - 2021-12-19 00:10 +0100
    Re: GRUB really slow to boot Tim Woodall <debianuser@woodall.me.uk> - 2021-12-19 08:30 +0100
      Re: GRUB really slow to boot Greg Wooledge <greg@wooledge.org> - 2021-12-19 15:30 +0100
        Re: GRUB really slow to boot Tim Woodall <debianuser@woodall.me.uk> - 2021-12-19 16:10 +0100
  Re: GRUB really slow to boot Brian <ad44@cityscape.co.uk> - 2021-12-19 13:10 +0100
  Re: GRUB really slow to boot Darac Marjal <mailinglist@darac.org.uk> - 2021-12-19 15:50 +0100
  Re: GRUB really slow to boot David Wright <deblis@lionunicorn.co.uk> - 2022-01-03 03:50 +0100
    Re: GRUB really slow to boot David Wright <deblis@lionunicorn.co.uk> - 2022-01-20 17:30 +0100

csiph-web