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Hi, |
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to the downgrade thing it can be partly done using the squashfs portage |
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snapshots laying on every portage mirror. There is a long history list |
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there. |
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https://gentoo.osuosl.org/snapshots/squashfs/ |
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So you can migrate your portage tree from plain files to the squashfs. |
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But actually the real issue here is that you are modifying your live |
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system with potentially broken things and than stay in a non working |
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state. For stable binary distribution there is a very high probability |
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that upgrade will pass correctly. But on gentoo the probability is much |
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less. So it needs to be counted with. |
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The easiest thing is to let the portage create binary packages from the |
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ones that are unmerged and keep old portage squashfs at hand. This is |
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still live system and I would not do that. |
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Instead just use any filesystem for the root that allows you creating |
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boot environments (zfs, btrfs, lvm). |
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I have only experience with zfs, so creating boot environments is very |
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easy and an atomic operation, where the upgrade only happen in a new BE |
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until it is ready to go. |
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Having BE setup correctly and squashfs images in it, provides you a |
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consistent working environment all the time. And if something does not |
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work as expected, you may return to the previous BE (if you didnt remove |
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it). |
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|
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Robert. |
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|
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On 1/9/22 12:47, gevisz wrote: |
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> I constantly have problems with updating/recompiling tensorflow. |
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> Sometimes, it compiles ok but most of the time it is not. |
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> The last time when it failed to recompile was on 30-12-2021. |
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> I reported this in the thread "tensorflow-2.5.0-r1 compilation failed" |
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> |
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> So, I decided to degrade my Gentoo system to the state in which |
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> it was on 12-12-2021, when my tensorflow was still ok, and froze it forever. |
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> |
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> The problem is that I do not know how to sync my Gentoo repository |
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> to the state it was on 12-12-2021. |
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> |
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> I use webrsync sync method via "maint -A sync" and would prefer |
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> to use the same sync method for degrading my Gentoo system. |
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> |
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> Can anybody, please, tell me how to do it using this sync method? |
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> |
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