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Groups > linux.debian.user > #264482 > unrolled thread
| Started by | Dan Ritter <dsr@randomstring.org> |
|---|---|
| First post | 2023-12-09 19:30 +0100 |
| Last post | 2023-12-11 17:50 +0100 |
| Articles | 20 on this page of 32 — 18 participants |
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IMPORTANT: do NOT upgrade to new stable point release Dan Ritter <dsr@randomstring.org> - 2023-12-09 19:30 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Nate Bargmann <n0nb@n0nb.us> - 2023-12-09 19:50 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Markus Schönhaber <debian-user@list-post.mks-mail.de> - 2023-12-09 20:00 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Alexis Grigoriou <alexis@nanoid.net> - 2023-12-09 20:10 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Michael Kjörling <2695bd53d63c@ewoof.net> - 2023-12-09 20:20 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Greg Wooledge <greg@wooledge.org> - 2023-12-09 20:30 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Richmond <dnomhcir@gmx.com> - 2023-12-09 21:00 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Michael Kjörling <2695bd53d63c@ewoof.net> - 2023-12-09 21:00 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Joe <joe@jretrading.com> - 2023-12-09 22:20 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release "Niall O'Reilly" <niall+lists@no8.be> - 2023-12-10 17:00 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Gary Dale <gary@extremeground.com> - 2023-12-10 18:00 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release "Andrew M.A. Cater" <amacater@einval.com> - 2023-12-10 18:00 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Curt <curty@free.fr> - 2023-12-10 18:10 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release "Andrew M.A. Cater" <amacater@einval.com> - 2023-12-10 18:30 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release <tomas@tuxteam.de> - 2023-12-10 18:30 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release John Hasler <john@sugarbit.com> - 2023-12-10 18:40 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Greg Wooledge <greg@wooledge.org> - 2023-12-10 18:30 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Gary Dale <gary@extremeground.com> - 2023-12-10 19:00 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Curt <curty@free.fr> - 2023-12-10 19:50 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Nicholas Geovanis <nickgeovanis@gmail.com> - 2023-12-10 20:40 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release <tomas@tuxteam.de> - 2023-12-10 20:50 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Gary Dale <gary@extremeground.com> - 2023-12-10 19:30 +0100
6.1.0-15/6.1.66-1 broken too? Kevin Price <kp@osnanet.de> - 2023-12-10 20:20 +0100
Re: 6.1.0-15/6.1.66-1 broken too? "Andrew M.A. Cater" <amacater@einval.com> - 2023-12-10 20:30 +0100
Re: 6.1.0-15/6.1.66-1 broken too? Kevin Price <kp@osnanet.de> - 2023-12-11 00:00 +0100
Re: 6.1.0-15/6.1.66-1 broken too? Kevin Price <kp@osnanet.de> - 2023-12-11 12:20 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Charles Curley <charlescurley@charlescurley.com> - 2023-12-10 22:30 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release "Andrew M.A. Cater" <amacater@einval.com> - 2023-12-10 22:50 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Gary Dale <gary@extremeground.com> - 2023-12-11 17:40 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Махно <mindaugasceliesius@gmail.com> - 2023-12-11 17:50 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Махно <mindaugasceliesius@gmail.com> - 2023-12-11 17:50 +0100
Re: IMPORTANT: do NOT upgrade to new stable point release Michael Kjörling <2695bd53d63c@ewoof.net> - 2023-12-11 17:50 +0100
Page 1 of 2 [1] 2 Next page →
| From | Dan Ritter <dsr@randomstring.org> |
|---|---|
| Date | 2023-12-09 19:30 +0100 |
| Subject | IMPORTANT: do NOT upgrade to new stable point release |
| Message-ID | <HJafn-craF-1@gated-at.bofh.it> |
https://fulda.social/@Ganneff/111551628003050712 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1057843 The new kernel release is reported to contain an ext4 data corruption bug. It's prudent not to upgrade, or if you have started to upgrade, not to reboot, until a new kernel release is prepared. -dsr-
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| From | Nate Bargmann <n0nb@n0nb.us> |
|---|---|
| Date | 2023-12-09 19:50 +0100 |
| Message-ID | <HJayJ-crh3-3@gated-at.bofh.it> |
| In reply to | #264482 |
[Multipart message — attachments visible in raw view] — view raw
Thanks for the tip. I updated this morning well before any announcements and having seen this I rebooted into the 6.1.0-12 (6.1.52) package. Good thing old kernels are kept around. - Nate -- "The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true." Web: https://www.n0nb.us Projects: https://github.com/N0NB GPG fingerprint: 82D6 4F6B 0E67 CD41 F689 BBA6 FB2C 5130 D55A 8819
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| From | Markus Schönhaber <debian-user@list-post.mks-mail.de> |
|---|---|
| Date | 2023-12-09 20:00 +0100 |
| Message-ID | <HJaIp-crkb-1@gated-at.bofh.it> |
| In reply to | #264482 |
09.12.23, 19:09 +0100, Dan Ritter: > https://fulda.social/@Ganneff/111551628003050712 > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1057843 > > The new kernel release is reported to contain an ext4 data > corruption bug. It's prudent not to upgrade, or if you have > started to upgrade, not to reboot, until a new kernel release > is prepared. Thank you very much for the hint, Dan! -- Regards mks
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| From | Alexis Grigoriou <alexis@nanoid.net> |
|---|---|
| Date | 2023-12-09 20:10 +0100 |
| Message-ID | <HJaS5-crCN-3@gated-at.bofh.it> |
| In reply to | #264482 |
On Sat, 2023-12-09 at 13:09 -0500, Dan Ritter wrote: > > > The new kernel release is reported to contain an ext4 data > corruption bug. It's prudent not to upgrade, or if you have > started to upgrade, not to reboot, until a new kernel release > is prepared. > I just upgraded to Bookworm this morning. I did reboot a couple of times but there seems to be no problem (yet). Is there anything I should look for or do other than rebooting?
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| From | Michael Kjörling <2695bd53d63c@ewoof.net> |
|---|---|
| Date | 2023-12-09 20:20 +0100 |
| Message-ID | <HJb1L-crFL-1@gated-at.bofh.it> |
| In reply to | #264485 |
On 9 Dec 2023 20:54 +0200, from alexis@nanoid.net (Alexis Grigoriou): > I just upgraded to Bookworm this morning. I did reboot a couple of > times but there seems to be no problem (yet). Is there anything I > should look for or do other than rebooting? If you upgraded this morning, then I would expect that you are okay for now. Per #5 in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1057843 the bug is present in kernel Debian package version 6.1.64-1. If you are on 6.1.55-1 (current Bookworm stable per last night) you _likely_ aren't affected. If you are on 6.1.55-1 (or earlier), just hold off on upgrades for now; and if you need to upgrade something else, take great care for now to ensure that no Linux kernel packages get upgraded to any version < 6.1.66, and preferably not < 6.1.66-1. For versions, check: * uname -v * dpkg -l linux-image-\* In that bug report thread, #21 lists 6.1.66 as fixed upstream, and #28 indicates that 6.1.66-1 includes the fix from upstream, and that it is being published. -- Michael Kjörling 🔗 https://michael.kjorling.se “Remember when, on the Internet, nobody cared that you were a dog?”
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| From | Greg Wooledge <greg@wooledge.org> |
|---|---|
| Date | 2023-12-09 20:30 +0100 |
| Message-ID | <HJbbs-crIu-1@gated-at.bofh.it> |
| In reply to | #264488 |
On Sat, Dec 09, 2023 at 07:18:20PM +0000, Michael Kjörling wrote: > If you upgraded this morning, then I would expect that you are okay > for now. That doesn't appear to be true. > Per #5 in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1057843 > the bug is present in kernel Debian package version 6.1.64-1. If you > are on 6.1.55-1 (current Bookworm stable per last night) you _likely_ > aren't affected. This is the kernel I got this morning: ii linux-image-6.1.0-14-amd64 6.1.64-1 amd64 Linux 6.1 for 64-bit PCs (signed) This is the current result of looking for a newer one: 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Based on the warnings given here, I rebooted to the prior kernel: unicorn:~$ uname -a Linux unicorn 6.1.0-13-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.55-1 (2023-09-29) x86_64 GNU/Linux I guess I'll wait and see what happens next.
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| From | Richmond <dnomhcir@gmx.com> |
|---|---|
| Date | 2023-12-09 21:00 +0100 |
| Message-ID | <HJbEt-crS3-1@gated-at.bofh.it> |
| In reply to | #264489 |
Greg Wooledge <greg@wooledge.org> writes: > On Sat, Dec 09, 2023 at 07:18:20PM +0000, Michael Kjörling wrote: >> If you upgraded this morning, then I would expect that you are okay >> for now. > > That doesn't appear to be true. > >> Per #5 in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1057843 >> the bug is present in kernel Debian package version 6.1.64-1. If you >> are on 6.1.55-1 (current Bookworm stable per last night) you _likely_ >> aren't affected. > > This is the kernel I got this morning: > > ii linux-image-6.1.0-14-amd64 6.1.64-1 amd64 Linux 6.1 for 64-bit PCs > (signed) > > This is the current result of looking for a newer one: > > 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. > > Based on the warnings given here, I rebooted to the prior kernel: > > unicorn:~$ uname -a Linux unicorn 6.1.0-13-amd64 #1 SMP > PREEMPT_DYNAMIC Debian 6.1.55-1 (2023-09-29) x86_64 GNU/Linux > > I guess I'll wait and see what happens next. I upgraded some time today to a December kernel. I have now gone back to September 29 kernel. But is there a way to tell what if anything got corrupted? I am using a 32 bit system and ext4. I booted this: 6.1.0-13-686-pae #1 SMP PREEMPT_DYNAMIC Debian 6.1.55-1 (2023-09-29) i686 GNU/Linux then: aptitude remove linux-image-6.1.0-14-686-pae
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| From | Michael Kjörling <2695bd53d63c@ewoof.net> |
|---|---|
| Date | 2023-12-09 21:00 +0100 |
| Message-ID | <HJbEv-crS3-11@gated-at.bofh.it> |
| In reply to | #264489 |
On 9 Dec 2023 14:26 -0500, from greg@wooledge.org (Greg Wooledge): >> If you upgraded this morning, then I would expect that you are okay >> for now. > > That doesn't appear to be true. > >> Per #5 in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1057843 >> the bug is present in kernel Debian package version 6.1.64-1. If you >> are on 6.1.55-1 (current Bookworm stable per last night) you _likely_ >> aren't affected. > > This is the kernel I got this morning: > > ii linux-image-6.1.0-14-amd64 6.1.64-1 amd64 Linux 6.1 for 64-bit PCs (signed) Alexis Grigoriou is in UTC+0200 per the email headers; you are in UTC-0500. Thus "this morning" is 7 hour later for you than for Alexis, only because of that. -- Michael Kjörling 🔗 https://michael.kjorling.se “Remember when, on the Internet, nobody cared that you were a dog?”
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| From | Joe <joe@jretrading.com> |
|---|---|
| Date | 2023-12-09 22:20 +0100 |
| Message-ID | <HJcTT-csMU-7@gated-at.bofh.it> |
| In reply to | #264488 |
On Sat, 9 Dec 2023 19:18:20 +0000 Michael Kjörling <2695bd53d63c@ewoof.net> wrote: > On 9 Dec 2023 20:54 +0200, from alexis@nanoid.net (Alexis Grigoriou): > > I just upgraded to Bookworm this morning. I did reboot a couple of > > times but there seems to be no problem (yet). Is there anything I > > should look for or do other than rebooting? > > If you upgraded this morning, then I would expect that you are okay > for now. > > Per #5 in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1057843 > the bug is present in kernel Debian package version 6.1.64-1. If you > are on 6.1.55-1 (current Bookworm stable per last night) you _likely_ > aren't affected. If you are on 6.1.55-1 (or earlier), just hold off on > upgrades for now; and if you need to upgrade something else, take > great care for now to ensure that no Linux kernel packages get > upgraded to any version < 6.1.66, and preferably not < 6.1.66-1. > > For versions, check: > > * uname -v > * dpkg -l linux-image-\* > > In that bug report thread, #21 lists 6.1.66 as fixed upstream, and #28 > indicates that 6.1.66-1 includes the fix from upstream, and that it is > being published. > It appears from the link in the bug report that 6.5.x kernels (sid/trixie) are not affected. Does anyone know otherwise? https://lore.kernel.org/stable/20231205122122.dfhhoaswsfscuhc3@quack3/ Is the bug likely to affect all architectures? I have a Pi bookworm (armhf) on 6.1.63-1, with 6.1.58-1 also installed. I can probably roll back to 6.1.54-1 if necessary. -- Joe
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| From | "Niall O'Reilly" <niall+lists@no8.be> |
|---|---|
| Date | 2023-12-10 17:00 +0100 |
| Message-ID | <HJunM-cDPO-11@gated-at.bofh.it> |
| In reply to | #264488 |
On 9 Dec 2023, at 19:18, Michael Kjörling wrote:
> If you are on 6.1.55-1 (or earlier), just hold off on
> upgrades for now; and if you need to upgrade something else, take
> great care for now to ensure that no Linux kernel packages get
> upgraded to any version < 6.1.66, and preferably not < 6.1.66-1.
TSM for this advice.
As I'm not used to having to "take great care" like this, I would
appreciate confirmation that what I've done is likely to be useful.
I've dropped a file into /etc/apt/preferences.d/ containing
the following text.
Package: linux-image-amd64
Pin: version 6.1.55-1
Pin-Priority: 1100
As I noticed that an upgrade to 6.1.64-1 was also in line for
linux-libc-dev, I did the same for this package too.
As a result, apt-cache policy is telling me
linux-image-amd64:
Installed: 6.1.55-1
Candidate: 6.1.55-1
Version table:
6.1.64-1 500
500 https://ftp.debian.org/debian bookworm/main amd64 Packages
*** 6.1.55-1 1100
100 /var/lib/dpkg/status
6.1.52-1 500
500 https://security.debian.org/debian-security bookworm-security/main amd64 Packages
linux-libc-dev:
Installed: 6.1.55-1
Candidate: 6.1.55-1
Version table:
6.1.64-1 500
500 https://ftp.debian.org/debian bookworm/main amd64 Packages
*** 6.1.55-1 1100
100 /var/lib/dpkg/status
6.1.52-1 500
500 https://security.debian.org/debian-security bookworm-security/main amd64 Packages
Thanks in anticipation of a simple yes or no.
Niall O'Reilly
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| From | Gary Dale <gary@extremeground.com> |
|---|---|
| Date | 2023-12-10 18:00 +0100 |
| Message-ID | <HJvjP-cEox-9@gated-at.bofh.it> |
| In reply to | #264488 |
On 2023-12-09 14:18, Michael Kjörling wrote: > On 9 Dec 2023 20:54 +0200, from alexis@nanoid.net (Alexis Grigoriou): >> I just upgraded to Bookworm this morning. I did reboot a couple of >> times but there seems to be no problem (yet). Is there anything I >> should look for or do other than rebooting? > If you upgraded this morning, then I would expect that you are okay > for now. > > Per #5 in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1057843 > the bug is present in kernel Debian package version 6.1.64-1. If you > are on 6.1.55-1 (current Bookworm stable per last night) you _likely_ > aren't affected. If you are on 6.1.55-1 (or earlier), just hold off on > upgrades for now; and if you need to upgrade something else, take > great care for now to ensure that no Linux kernel packages get > upgraded to any version < 6.1.66, and preferably not < 6.1.66-1. > > For versions, check: > > * uname -v > * dpkg -l linux-image-\* > > In that bug report thread, #21 lists 6.1.66 as fixed upstream, and #28 > indicates that 6.1.66-1 includes the fix from upstream, and that it is > being published. > Any idea when the fixed version will hit stable? With headless servers, it's a pain to downgrade to a previous kernel version.
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| From | "Andrew M.A. Cater" <amacater@einval.com> |
|---|---|
| Date | 2023-12-10 18:00 +0100 |
| Message-ID | <HJvjP-cEox-11@gated-at.bofh.it> |
| In reply to | #264531 |
On Sun, Dec 10, 2023 at 11:50:18AM -0500, Gary Dale wrote: > On 2023-12-09 14:18, Michael Kjörling wrote: > > On 9 Dec 2023 20:54 +0200, from alexis@nanoid.net (Alexis Grigoriou): > > > I just upgraded to Bookworm this morning. I did reboot a couple of > > > times but there seems to be no problem (yet). Is there anything I > > > should look for or do other than rebooting? > > If you upgraded this morning, then I would expect that you are okay > > for now. > > > > Per #5 in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1057843 > > the bug is present in kernel Debian package version 6.1.64-1. If you > > are on 6.1.55-1 (current Bookworm stable per last night) you _likely_ > > aren't affected. If you are on 6.1.55-1 (or earlier), just hold off on > > upgrades for now; and if you need to upgrade something else, take > > great care for now to ensure that no Linux kernel packages get > > upgraded to any version < 6.1.66, and preferably not < 6.1.66-1. > > > > For versions, check: > > > > * uname -v > > * dpkg -l linux-image-\* > > > > In that bug report thread, #21 lists 6.1.66 as fixed upstream, and #28 > > indicates that 6.1.66-1 includes the fix from upstream, and that it is > > being published. > > > Any idea when the fixed version will hit stable? With headless servers, it's > a pain to downgrade to a previous kernel version. > Give them a little while: release team are working on it right now as I type I'm fairly sure they're pushing it out more or less immediately once they're sure that it's built correctly and synced to all the appropriate places to be further synced to mirrors "Now" is almost exactly Sun 10 Dec 16:55:43 UTC 2023 Andy (amacater@debian.org)
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| From | Curt <curty@free.fr> |
|---|---|
| Date | 2023-12-10 18:10 +0100 |
| Message-ID | <HJvtv-cEHc-3@gated-at.bofh.it> |
| In reply to | #264532 |
On 2023-12-10, Andrew M.A. Cater <amacater@einval.com> wrote: > > "Now" is almost exactly Sun 10 Dec 16:55:43 UTC 2023 You mean in the Zulu Time Zone (as I am all at sea)? > Andy > (amacater@debian.org) > >
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| From | "Andrew M.A. Cater" <amacater@einval.com> |
|---|---|
| Date | 2023-12-10 18:30 +0100 |
| Message-ID | <HJvMS-cENp-5@gated-at.bofh.it> |
| In reply to | #264533 |
On Sun, Dec 10, 2023 at 05:09:15PM -0000, Curt wrote: > On 2023-12-10, Andrew M.A. Cater <amacater@einval.com> wrote: > > > > "Now" is almost exactly Sun 10 Dec 16:55:43 UTC 2023 > > You mean in the Zulu Time Zone (as I am all at sea)? > > > Andy > > (amacater@debian.org) > > > > > Not this again :) GMT (was) the world standard reference point from 1884 and the Washington Conference (or thereabouts). For most purposes GMT +0000 == UTC (or UCT if you're Francophone) == Zulu time (26 time zones to cope with half hour offsets - ?? go from A-Z??) == "military time" (if you're US military) and quite possibly NATO time. This fails with leap seconds, potentially, and also TAI astronomical time seems to be its own animal. Does this help? Andy (amacater@debian.org) > >
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| From | <tomas@tuxteam.de> |
|---|---|
| Date | 2023-12-10 18:30 +0100 |
| Message-ID | <HJvMS-cENp-7@gated-at.bofh.it> |
| In reply to | #264535 |
[Multipart message — attachments visible in raw view] — view raw
On Sun, Dec 10, 2023 at 05:20:40PM +0000, Andrew M.A. Cater wrote:
> On Sun, Dec 10, 2023 at 05:09:15PM -0000, Curt wrote:
> > On 2023-12-10, Andrew M.A. Cater <amacater@einval.com> wrote:
> > >
> > > "Now" is almost exactly Sun 10 Dec 16:55:43 UTC 2023
> >
> > You mean in the Zulu Time Zone (as I am all at sea)?
> >
> > > Andy
> > > (amacater@debian.org)
> > >
> > >
> >
>
> Not this again :) GMT (was) the world standard reference point from 1884
> and the Washington Conference (or thereabouts).
>
> For most purposes GMT +0000 == UTC (or UCT if you're Francophone) ==
Actually this would be TUC ("Temps universel coordonné), while English
would be CUT, but for once, they compromised on UTC [1] :-)
Cheers
[1] https://fr.wikipedia.org/wiki/UTC
--
t
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| From | John Hasler <john@sugarbit.com> |
|---|---|
| Date | 2023-12-10 18:40 +0100 |
| Message-ID | <HJvWx-cEQt-7@gated-at.bofh.it> |
| In reply to | #264535 |
Andy writes: > This fails with leap seconds, potentially, and also TAI astronomical > time seems to be its own animal. TAI isn't good enough for the astronomers. https://en.wikipedia.org/wiki/Terrestrial_Time -- John Hasler john@sugarbit.com Elmwood, WI USA
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| From | Greg Wooledge <greg@wooledge.org> |
|---|---|
| Date | 2023-12-10 18:30 +0100 |
| Message-ID | <HJvMS-cENp-11@gated-at.bofh.it> |
| In reply to | #264533 |
On Sun, Dec 10, 2023 at 05:09:15PM -0000, Curt wrote: > On 2023-12-10, Andrew M.A. Cater <amacater@einval.com> wrote: > > > > "Now" is almost exactly Sun 10 Dec 16:55:43 UTC 2023 > > You mean in the Zulu Time Zone (as I am all at sea)? Use "date -u" to see current UTC time. That should be sufficient to let you know how long it has been since Andrew's "now".
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| From | Gary Dale <gary@extremeground.com> |
|---|---|
| Date | 2023-12-10 19:00 +0100 |
| Message-ID | <HJwfT-cEX4-5@gated-at.bofh.it> |
| In reply to | #264538 |
On 2023-12-10 12:24, Greg Wooledge wrote: > On Sun, Dec 10, 2023 at 05:09:15PM -0000, Curt wrote: >> On 2023-12-10, Andrew M.A. Cater <amacater@einval.com> wrote: >>> "Now" is almost exactly Sun 10 Dec 16:55:43 UTC 2023 >> You mean in the Zulu Time Zone (as I am all at sea)? > Use "date -u" to see current UTC time. That should be sufficient to > let you know how long it has been since Andrew's "now". > You're getting too complicated. The date stamp on his e-mail will display the correct local time (as you have set it) so I can see that he wrote it 30 minutes ago. That relative time is universal across time zones.
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| From | Curt <curty@free.fr> |
|---|---|
| Date | 2023-12-10 19:50 +0100 |
| Message-ID | <HJx2i-cFsl-15@gated-at.bofh.it> |
| In reply to | #264541 |
On 2023-12-10, Gary Dale <gary@extremeground.com> wrote: > > On 2023-12-10 12:24, Greg Wooledge wrote: >> On Sun, Dec 10, 2023 at 05:09:15PM -0000, Curt wrote: >>> On 2023-12-10, Andrew M.A. Cater <amacater@einval.com> wrote: >>>> "Now" is almost exactly Sun 10 Dec 16:55:43 UTC 2023 >>> You mean in the Zulu Time Zone (as I am all at sea)? >> Use "date -u" to see current UTC time. That should be sufficient to >> let you know how long it has been since Andrew's "now". >> > You're getting too complicated. The date stamp on his e-mail will > display the correct local time (as you have set it) so I can see that he > wrote it 30 minutes ago. That relative time is universal across time zones. > > It is the notion of simultaneity itself (the now of now) that is relative rather than universal.
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| From | Nicholas Geovanis <nickgeovanis@gmail.com> |
|---|---|
| Date | 2023-12-10 20:40 +0100 |
| Message-ID | <HJxOF-cFYA-5@gated-at.bofh.it> |
| In reply to | #264549 |
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On Sun, Dec 10, 2023, 12:47 PM Curt <curty@free.fr> wrote: > On 2023-12-10, Gary Dale <gary@extremeground.com> wrote: > > > > On 2023-12-10 12:24, Greg Wooledge wrote: > >> On Sun, Dec 10, 2023 at 05:09:15PM -0000, Curt wrote: > >>> On 2023-12-10, Andrew M.A. Cater <amacater@einval.com> wrote: > >>>> "Now" is almost exactly Sun 10 Dec 16:55:43 UTC 2023 > >>> You mean in the Zulu Time Zone (as I am all at sea)? > >> Use "date -u" to see current UTC time. That should be sufficient to > >> let you know how long it has been since Andrew's "now". > >> > > You're getting too complicated. The date stamp on his e-mail will > > display the correct local time (as you have set it) so I can see that he > > wrote it 30 minutes ago. That relative time is universal across time > zones. > > > > > > It is the notion of simultaneity itself (the now of now) that is > relative rather than universal. > I thought metaphysics was off-topic for this group. Moderators!! :-) >
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