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wootan
n00b
Joined: 10 Dec 2024
Posts: 8
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 Posted: Wed Dec 11, 2024 6:24 pm Post subject: depclean after kernel download |
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my issue is that i messed up by performing a depclean prior to fully installing my kernel after an update... the issue is perfectly described in this post by NeddySeagoon that describes exactly what i just did wrong.
here is the link to original quote and the post is also pasted below
https://forums.gentoo.org/posting.php?mode=quote&p=8494796&sid=cb73bc8b2de2cdcad9194ddf154e57c8
| Quote: | C666PO,
New kernels don't have a .config file at all.
When you run make menuconfig, the make system loads a defaultconfig which is mostly no use to anyone.
Here's what happened to you. You did an update that fetched new kernel sources.
The update went well and you ran
Code:
emerge --depclean
That removed all the downloaded files from /usr/src/linux, which points to an older kernel that the one your update fetched.
The key here is 'downloaded files'. Your .config and all the generated files are still there but /usr/src/linux/Makefile has gone as it was downloaded.
Hence your error.
Copy /usr/src/linux/.config to your new kernel source tree and do the kernel update dance.
You can do something similar with gcc when you have a new gcc installed but not yet selected.
--depclean will remove your active gcc. That's scary the first time.
What you are reporting is normal behavior.
Its possible emerge your old kernel again if you really need it but you need to specify the slot, as you don't want the newest kernel.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail |
the only issue, is he doesn't say exactly how to get my makefile back. i tried to look through the kernel upgrade documentation but am not able to figure this out.
basically i cannot perform make oldconfig or any make function, my makefile is gone, as described above.
Last edited by wootan on Wed Dec 11, 2024 10:35 pm; edited 2 times in total |
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rfx
Tux's lil' helper
Joined: 19 Apr 2023
Posts: 146
Location: de-by
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| Posted: Wed Dec 11, 2024 6:30 pm Post subject: |
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 22809
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| Posted: Wed Dec 11, 2024 6:50 pm Post subject: |
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OP: welcome to the forums. I suggest that you use Preview before you Submit a post, so that you can review how well (or not) your BBcode comes through. In your case, it's a bit of a mess. I think you could've gotten something more usable, and more readily, by opening a reply-with-quote of Neddy's post, then copying that text into your new post here without attempting to modify it.
As for your implied question, Neddy answered it: don't do that. More specifically, rather than trying to retrieve the Makefile and associated kernel sources of the by-definition non-current kernel, you should use a now-current kernel and update your .config accordingly. Neddy also did explain how to get back the older kernel if you really need it. |
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wootan
n00b
Joined: 10 Dec 2024
Posts: 8
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| Posted: Wed Dec 11, 2024 10:32 pm Post subject: |
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| Hu wrote: | OP: welcome to the forums. I suggest that you use Preview before you Submit a post, so that you can review how well (or not) your BBcode comes through. In your case, it's a bit of a mess. I think you could've gotten something more usable, and more readily, by opening a reply-with-quote of Neddy's post, then copying that text into your new post here without attempting to modify it.
As for your implied question, Neddy answered it: don't do that. More specifically, rather than trying to retrieve the Makefile and associated kernel sources of the by-definition non-current kernel, you should use a now-current kernel and update your .config accordingly. Neddy also did explain how to get back the older kernel if you really need it. |
thank you for the warm welcome and all of your help with issues i've run across, you're so right my post looked like a storm blew threw it. how embarrassing. anyway i fixed the original post. |
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wootan
n00b
Joined: 10 Dec 2024
Posts: 8
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| Posted: Wed Dec 11, 2024 10:34 pm Post subject: |
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| rfx wrote: | | What is your Question? |
thank you for your reply, i reformed my original post. hopefully that makes sense now. |
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wootan
n00b
Joined: 10 Dec 2024
Posts: 8
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| Posted: Thu Dec 12, 2024 4:28 am Post subject: |
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| Hu wrote: | OP: welcome to the forums. I suggest that you use Preview before you Submit a post, so that you can review how well (or not) your BBcode comes through. In your case, it's a bit of a mess. I think you could've gotten something more usable, and more readily, by opening a reply-with-quote of Neddy's post, then copying that text into your new post here without attempting to modify it.
As for your implied question, Neddy answered it: don't do that. More specifically, rather than trying to retrieve the Makefile and associated kernel sources of the by-definition non-current kernel, you should use a now-current kernel and update your .config accordingly. Neddy also did explain how to get back the older kernel if you really need it. |
so i did everything Nedd said, i get the same error. so I'm not sure where im going wrong here. the old kernel source folder is still in /usr/src. the config file is in there, and i've moved it to /usr/src/linux after eselecting the new kernel.
this is where im stuck |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54619
Location: 56N 3W
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| Posted: Thu Dec 12, 2024 10:47 am Post subject: |
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Welcome to Gentoo.
Trust but verify.
Run ls -l /usr/src
Does the linux -> symlink point to the kernel you think it does?
If so, cd /usr/src/linux and run make oldconfig
Read the help and answer the questions to update the .config for the new kernel.
Then build and install it in the usual way. Don't forget to mount /boot.
Fix the symlink first, if you need to.
Provided the ebuild for your old kernel is still in the tree, emerge gentoo-sources:<slot> will get the sources back.
The generated files will be uharmed.
If your old kernel ebuild has been removed, you can recover it from the git repo.
All the ebuilds that ever were are still online. Back to 2002 anyway, when Gentoo adopted CVS.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 22809
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| Posted: Thu Dec 12, 2024 2:23 pm Post subject: |
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| As an additional hint beyond Neddy's advice, I suggest that you show, rather than tell. Don't tell us "I did everything Nedd said." Instead, show us the commands you ran as a result of reading his post, and what output they produced. This lets us confirm that you understood the post correctly and that the commands ran as desired. |
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