guix time-machine/shell throws "unsupported manifest format" error

DoneSubmitted by Maxim Cournoyer.
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2 participants
  • Ludovic Courtès
  • Maxim Cournoyer
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normal
M
M
Maxim Cournoyer wrote on 14 Jul 02:53 +0200
(name . bug-guix)(address . bug-guix@gnu.org)
87pmi8y0nx.fsf@gmail.com
Hi Guix,

I recently tried re-entering an older environment via:

$ guix describe
Generation 128 Jul 06 2022 14:50:39 (current)
guix 17892c5
branch: master
commit: 17892c5f9c5c5c93325884834a58cc2a4fafa51f
sfl-packages 6385881
branch: master
commit: 6385881124429016f750b0f562b70e07f592275e
$ guix time-machine -C channels.scm -- shell

with in the current directory the project manifest file:

Toggle snippet (60 lines)
(packages->manifest
(map specification->package
(list
;; General utilities.
"bash"
"coreutils"
"cpio"
"cqfd"
"findutils"
"gawk"
"git"
"grep"
"gzip"
"info-reader" ;to generate the info dir entry
"less" ;for a better git experience
"make"
"man-db" ;to generate the manpages database
"pandoc"
"pict"
"sed"
"openssh" ;for the SSH client used by git
"tar"
"tree"
"wget"

;; Python and libraries.
"python-matplotlib"
"python-paramiko"
"python-robotframework"
"python-robotframework-datadriver"
"python-robotframework-sshlibrary"
"python-robotframework-stacktrace"
"python-scp"
"python-selenium"
"python-tenacity"
"python-wrapper"

;; Drivers
"python-labjack"

;; Development tools.
"python-flake8"
"python-flake8-isort"
"python-ipython"
"python-ipython-documentation"
;; To use ipdb with Python's breakpoint():
;; 'export PYTHONBREAKPOINT=ipdb.sset_trace'
;; then set 'breakpoint()' in Python sources or
;; 'Evaluate breakpoint()' in RobotFramework sources.
"python-ipdb"
"python-isort"
"python-pdbpp" ;for the 'sticky' mode
"python-pylint"
"python-robotframework-lint"

;; Browsers.
"icecat"
"ungoogled-chromium")))

and the channels.scm file:

Toggle snippet (6 lines)
(list (channel
(inherit %default-guix-channel)
(commit
"ceeb2bfcaeb4380e01d26c8425e28b94ac13558a"))) ;2022-06-07

and was surprised to be greeted with the following error:


Toggle snippet (5 lines)
(repl-version 0 1 1)
(exception %exception (non-self-quoting 140737300283024 "#<&message message: \"unsupported manifest format\">"))
/var/log/guix/drvs/j8/0wjfx7s7nxhcn0wjxfysnnv2knx0c1-guix-package-cache.drv (END)

What does it mean? Which manifest is it referring to?

Thanks,

Maxim
L
L
Ludovic Courtès wrote on 17 Jul 21:31 +0200
(name . Maxim Cournoyer)(address . maxim.cournoyer@gmail.com)(address . 56545@debbugs.gnu.org)
87h73f4jue.fsf@gnu.org
Hi!

Maxim Cournoyer <maxim.cournoyer@gmail.com> scribes:

Toggle quote (16 lines)
> and the channels.scm file:
>
> (list (channel
> (inherit %default-guix-channel)
> (commit
> "ceeb2bfcaeb4380e01d26c8425e28b94ac13558a"))) ;2022-06-07
>
>
> and was surprised to be greeted with the following error:
>
> (repl-version 0 1 1)
> (exception %exception (non-self-quoting 140737300283024 "#<&message message: \"unsupported manifest format\">"))
> /var/log/guix/drvs/j8/0wjfx7s7nxhcn0wjxfysnnv2knx0c1-guix-package-cache.drv (END)
>
> What does it mean? Which manifest is it referring to?

Commit 4ff12d1de7cd617b791996ee7ca1240660b4c20e introduced that bug,
which was fixed in c9fbd40785a99e13a59d8e530830ce85220a9871:


‘guix describe’ should show that you’re using a commit in that range.

The solution is to run ‘time-machine’ from a commit outside that range,
for instance with:

guix time-machine -- time-machine -C channels.scm -- whatever

:-)

Ludo’.
M
M
Maxim Cournoyer wrote on 18 Jul 13:04 +0200
(name . Ludovic Courtès)(address . ludo@gnu.org)(address . 56545-done@debbugs.gnu.org)
87k08asmva.fsf@gmail.com
Hi Ludovic,

Ludovic Courtès <ludo@gnu.org> writes:

Toggle quote (34 lines)
> Hi!
>
> Maxim Cournoyer <maxim.cournoyer@gmail.com> scribes:
>
>> and the channels.scm file:
>>
>> (list (channel
>> (inherit %default-guix-channel)
>> (commit
>> "ceeb2bfcaeb4380e01d26c8425e28b94ac13558a"))) ;2022-06-07
>>
>>
>> and was surprised to be greeted with the following error:
>>
>> (repl-version 0 1 1)
>> (exception %exception (non-self-quoting 140737300283024 "#<&message message: \"unsupported manifest format\">"))
>> /var/log/guix/drvs/j8/0wjfx7s7nxhcn0wjxfysnnv2knx0c1-guix-package-cache.drv (END)
>>
>> What does it mean? Which manifest is it referring to?
>
> Commit 4ff12d1de7cd617b791996ee7ca1240660b4c20e introduced that bug,
> which was fixed in c9fbd40785a99e13a59d8e530830ce85220a9871:
>
> https://issues.guix.gnu.org/56441
>
> ‘guix describe’ should show that you’re using a commit in that range.
>
> The solution is to run ‘time-machine’ from a commit outside that range,
> for instance with:
>
> guix time-machine -- time-machine -C channels.scm -- whatever
>
> :-)

That's a happy resolution. Thank you!

Maxim
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