* bug#58247: Using guix time-machine results in unsupported manifest format error @ 2022-10-02 11:17 david larsson 2022-10-02 17:02 ` zimoun 0 siblings, 1 reply; 7+ messages in thread From: david larsson @ 2022-10-02 11:17 UTC (permalink / raw) To: 58247 Hi, Im on commit 729ce5f and Im running: guix time-machine --commit=7e8e070 -- package -i hello and it outputs: guix package: error: unsupported manifest format I have tried nesting time-machine as well like: guix time-machine --commit=<oldcommit> -- time-machine --commit=<somecommit> -- package -i hello but it gives the same error. Any ideas? Regards, David ^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#58247: Using guix time-machine results in unsupported manifest format error 2022-10-02 11:17 bug#58247: Using guix time-machine results in unsupported manifest format error david larsson @ 2022-10-02 17:02 ` zimoun 2022-10-02 18:57 ` david larsson 0 siblings, 1 reply; 7+ messages in thread From: zimoun @ 2022-10-02 17:02 UTC (permalink / raw) To: david larsson, 58247 Hi, On dim., 02 oct. 2022 at 13:17, david larsson <david.larsson@selfhosted.xyz> wrote: > Im on commit 729ce5f and Im running: guix time-machine --commit=7e8e070 > -- package -i hello > > and it outputs: > > guix package: error: unsupported manifest format It is probably because an issue with version of manifest; e.g, fixed by 67a6828b2bb821274757f686f7c685b664339a96. See <https://issues.guix.gnu.org/57306>. What does $ cat ~/.guix-profile/manifest | grep -A 1 manifest report? Cheers, simon ^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#58247: Using guix time-machine results in unsupported manifest format error 2022-10-02 17:02 ` zimoun @ 2022-10-02 18:57 ` david larsson 2022-10-02 22:10 ` zimoun 0 siblings, 1 reply; 7+ messages in thread From: david larsson @ 2022-10-02 18:57 UTC (permalink / raw) To: zimoun; +Cc: 58247 On 2022-10-02 19:02, zimoun wrote: [..] > It is probably because an issue with version of manifest; e.g, fixed by > 67a6828b2bb821274757f686f7c685b664339a96. See > <https://issues.guix.gnu.org/57306>. Note that the commit I'm on, is from 2 days ago, which is after the fix commit you're mentioning. > > What does > > $ cat ~/.guix-profile/manifest | grep -A 1 manifest > > report? (manifest (version 4) Not sure it matters, but Im able to run guix time-machine --commit=<somecommit> -- describe but not package -i <somepackage> Best regards, David ^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#58247: Using guix time-machine results in unsupported manifest format error 2022-10-02 18:57 ` david larsson @ 2022-10-02 22:10 ` zimoun 2022-10-19 10:51 ` zimoun 2022-10-20 18:44 ` david larsson 0 siblings, 2 replies; 7+ messages in thread From: zimoun @ 2022-10-02 22:10 UTC (permalink / raw) To: david larsson; +Cc: 58247 Hi, On Sun, 02 Oct 2022 at 20:57, david larsson <david.larsson@selfhosted.xyz> wrote: > On 2022-10-02 19:02, zimoun wrote: >> It is probably because an issue with version of manifest; e.g, fixed by >> 67a6828b2bb821274757f686f7c685b664339a96. See >> <https://issues.guix.gnu.org/57306>. > > Note that the commit I'm on, is from 2 days ago, which is after the fix > commit you're mentioning. Yes, note that the earlier mentioned commit 7e8e07033d2a6b0ecef566a05084c534c774cd4a is from Oct 2021 if I read correctly. > Not sure it matters, but Im able to run guix time-machine > --commit=<somecommit> -- describe but not package -i <somepackage> IIUC, ’describe’ reads from ~/.config/guix/current/manifest and here the issue is from ~/.guix-profile/manifest. Maybe I am wrong, but I think the issue is coming from an incompatibility about the version of ~/.guix-profile/manifest. This manifest is at the version 4. When you run guix time-machine --commit=<commit> -- package -i hello then I guess it works or not depending on <commit>. The manifest file ~/.guix-profile/manifest needs to be updated and there is a conflict because some versions of the profile manifest. For instance, consider two profiles generated using 2 different revisions of Guix – a recent one and an old one: --8<---------------cut here---------------start------------->8--- $ guix time-machine --commit=729ce5f -- package -i hello -p /tmp/new $ cat /tmp/new/manifest | grep -A 1 '(manifest' (manifest (version 4) --8<---------------cut here---------------end--------------->8--- and --8<---------------cut here---------------start------------->8--- $ guix time-machine --commit=7e8e070 -- package -i hello -p /tmp/old $ cat /tmp/old/manifest | grep -A 1 '(manifest' (manifest (version 3) --8<---------------cut here---------------end--------------->8--- Now, consider the recent profile named /tmp/new and try to install a previous package from an old commit, --8<---------------cut here---------------start------------->8--- $ guix time-machine --commit=7e8e070 -- package -i hello -p /tmp/new guix package: error: unsupported manifest format --8<---------------cut here---------------end--------------->8--- The old Guix uses version 3 and cannot read/write version 4 and bang! Let try the converse, --8<---------------cut here---------------start------------->8--- $ guix time-machine --commit=729ce5f -- package -i hello -p /tmp/old $ cat /tmp/old/manifest | grep -A 1 '(manifest' (manifest (version 4) $ guix package --list-generations -p /tmp/old Generation 1 oct. 02 2022 18:53:10 hello 2.10 out /gnu/store/xg67cpxq2p6q7wn4y2z194pndwdymhpf-hello-2.10 Generation 2 oct. 02 2022 21:25:11 (current) + hello 2.12.1 out /gnu/store/s5pd3rnzymliafb4la5sca63j86xs0y0-hello-2.12.1 - hello 2.10 out /gnu/store/xg67cpxq2p6q7wn4y2z194pndwdymhpf-hello-2.10 --8<---------------cut here---------------end--------------->8--- This profile /tmp/old is thus converted from version 3 to version 4, and then, reusing old version of Guix fails, --8<---------------cut here---------------start------------->8--- $ guix time-machine --commit=7e8e070 -- package -i hello -p /tmp/old guix package: error: unsupported manifest format --8<---------------cut here---------------end--------------->8--- Well, I do not know if a fix is possible. The issue is a backward compatibility issue. Cheers, simon ^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#58247: Using guix time-machine results in unsupported manifest format error 2022-10-02 22:10 ` zimoun @ 2022-10-19 10:51 ` zimoun 2022-12-04 17:01 ` Ludovic Courtès 2022-10-20 18:44 ` david larsson 1 sibling, 1 reply; 7+ messages in thread From: zimoun @ 2022-10-19 10:51 UTC (permalink / raw) To: david larsson; +Cc: Ludovic Courtès, 58247 Hi, This issue is about the upgrade of manifest version from 3 to 4. For references, <http://issues.guix.gnu.org/issue/58247> On Mon, 03 Oct 2022 at 00:10, zimoun <zimon.toutoune@gmail.com> wrote: > Well, I do not know if a fix is possible. The issue is a > backward compatibility issue. Ludo, what is your insight on that matter? Is it fixable? Or do we mark the issue as ’wontfix’? Cheers, simon ^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#58247: Using guix time-machine results in unsupported manifest format error 2022-10-19 10:51 ` zimoun @ 2022-12-04 17:01 ` Ludovic Courtès 0 siblings, 0 replies; 7+ messages in thread From: Ludovic Courtès @ 2022-12-04 17:01 UTC (permalink / raw) To: zimoun; +Cc: david larsson, 58247 Hi, zimoun <zimon.toutoune@gmail.com> skribis: > This issue is about the upgrade of manifest version from 3 to 4. For > references, > > <http://issues.guix.gnu.org/issue/58247> > > On Mon, 03 Oct 2022 at 00:10, zimoun <zimon.toutoune@gmail.com> wrote: > >> Well, I do not know if a fix is possible. The issue is a >> backward compatibility issue. > > Ludo, what is your insight on that matter? Is it fixable? Or do we > mark the issue as ’wontfix’? David wrote: > Im on commit 729ce5f and Im running: guix time-machine > --commit=7e8e070 -- package -i hello > > and it outputs: > > guix package: error: unsupported manifest format This use case cannot be fixed: you cannot use an old Guix (one that only understood manifest version 3) to manipulate a “new” profile (manifest version 4). That’s a fundamental limitation of old software being unable to deal with new formats in general. One way to work around it is to have that old ‘guix’ operate on a fresh profile (thus it’ll be version 3): rm -f /tmp/old-stuff guix time-machine --commit=7e8e070 -- package -i hello -p /tmp/old-stuff or, better yet, to use ‘guix shell’ or ‘guix environment’: guix time-machine --commit=7e8e070 -- \ environment --ad-hoc hello -- hello I’m closing this bug. Thanks, Ludo’. ^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#58247: Using guix time-machine results in unsupported manifest format error 2022-10-02 22:10 ` zimoun 2022-10-19 10:51 ` zimoun @ 2022-10-20 18:44 ` david larsson 1 sibling, 0 replies; 7+ messages in thread From: david larsson @ 2022-10-20 18:44 UTC (permalink / raw) To: zimoun; +Cc: 58247 On 2022-10-03 00:10, zimoun wrote: [..] > > Let try the converse, > > --8<---------------cut here---------------start------------->8--- > $ guix time-machine --commit=729ce5f -- package -i hello -p /tmp/old > > $ cat /tmp/old/manifest | grep -A 1 '(manifest' > (manifest > (version 4) > > $ guix package --list-generations -p /tmp/old > Generation 1 oct. 02 2022 18:53:10 > hello 2.10 out /gnu/store/xg67cpxq2p6q7wn4y2z194pndwdymhpf-hello-2.10 > > Generation 2 oct. 02 2022 21:25:11 (current) > + > hello 2.12.1 out /gnu/store/s5pd3rnzymliafb4la5sca63j86xs0y0-hello-2.12.1 > - hello 2.10 > out /gnu/store/xg67cpxq2p6q7wn4y2z194pndwdymhpf-hello-2.10 > --8<---------------cut here---------------end--------------->8--- > > This profile /tmp/old is thus converted from version 3 to version 4, > and > then, reusing old version of Guix fails, > > --8<---------------cut here---------------start------------->8--- > $ guix time-machine --commit=7e8e070 -- package -i hello -p /tmp/old > guix package: error: unsupported manifest format > --8<---------------cut here---------------end--------------->8--- > > > Well, I do not know if a fix is possible. The issue is a > backward compatibility issue. > Hi, Thanks for the clarification. I imagine it would be possible to give it a dirty fix, approximately as you just showed with /tmp/old, if you also just readd the default profile's currently installed packages to it at the end. So, if using ~/.guix-profile, it would be something like: 1. Say your ~/.guix-profile is at commit=XYZ 2. build a NEW profile with the old package ONLY, from commit=ABC (as in /tmp/old) 3. guix pull /tmp/old "back" to commit=XYZ 4. install remaining packages that was in your ~/.guix-profile to /tmp/old. 5. mv the ~/.guix-profile symlink to /tmp/old. ( /tmp/old should just be in /var/guix/profiles/per-user/$USER as normal ) Building a new package generation like this would not be the same as usual, cuz the currently installed packages may come from different guix revisions. That might be a dealbreaker for fixing it. I do think it's very sad though, that the time-machine is kind of broken whenever the manifest gets a new version, with no hint even to the user how to find a solution. Best regards, David ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2022-12-04 17:03 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-10-02 11:17 bug#58247: Using guix time-machine results in unsupported manifest format error david larsson 2022-10-02 17:02 ` zimoun 2022-10-02 18:57 ` david larsson 2022-10-02 22:10 ` zimoun 2022-10-19 10:51 ` zimoun 2022-12-04 17:01 ` Ludovic Courtès 2022-10-20 18:44 ` david larsson
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