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midnite
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Location: Hong Kong
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 Posted: Mon Jun 24, 2024 9:02 am Post subject: Some way to protect packages from --depclean? |
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[Administrator note: this post, and the first 8 responses, were originally attached to the 12 year old topic Some way to protect packages from --depclean?. However, this post has a different question. The old thread correctly noted that packages in @world are protected. That solution is not acceptable here because OP intends to keep packages that no longer exist in the tree. -Hu]
Sorry to bring up this old thread. I have the same question with the OP. How to protect packages from --depclean?
I used to have old gentoo-sources listed in the world sets: (6.6.30 is current. 6.6.13 is old.)
| Code: | # cat /etc/portage/sets/gentoo-sources
sys-kernel/gentoo-sources
sys-kernel/gentoo-sources:6.6.13
sys-kernel/gentoo-sources:6.6.30 |
But recently I removed the /var/cache/binpkgs/* (while upgrade to profile 23.0) and some old gentoo-sources is not available in gentoo repos anymore. Having old versions in world sets gives me error while emerge.
| Code: | # emerge -pv @world
These are the packages that would be merged, in order:
Calculating dependencies ... done!
Dependency resolution took 1.04 s (backtrack: 0/20).
emerge: there are no ebuilds to satisfy "sys-kernel/gentoo-sources:6.6.13".
(dependency required by "@gentoo-sources" [set])
(dependency required by "@selected" [set])
(dependency required by "@world" [argument]) |
So I have to remove the old versions in the world sets files:
| Code: | # cat /etc/portage/sets/gentoo-sources
sys-kernel/gentoo-sources
sys-kernel/gentoo-sources:6.6.30 |
The problem is, while depclean, the old version will be removed, which it is not desired at the moment as I am still using the old version.
| Code: | # emerge -pv --depclean
...
sys-kernel/gentoo-sources
selected: 6.6.13
protected: none
omitted: 6.6.30
...
>>> 'Selected' packages are slated for removal.
>>> 'Protected' and 'omitted' packages will not be removed. |
I understand I can use the exclude option to avoid removing an old package:
| Code: | # emerge -pv --depclean --exclude sys-kernel/gentoo-sources
...
( sys-kernel/gentoo-sources not in the list )
...
>>> 'Selected' packages are slated for removal.
>>> 'Protected' and 'omitted' packages will not be removed. |
But I notice that in the output of depclean, there is a field "protected:". How to mark a package or a version as "protected:" so it will not by removed while depclean?
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pietinger
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Joined: 17 Oct 2006
Posts: 4894
Location: Bavaria
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| Posted: Mon Jun 24, 2024 11:17 am Post subject: |
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| midnite wrote: | | But I notice that in the output of depclean, there is a field "protected:". How to mark a package or a version as "protected:" so it will not by removed while depclean? |
You "mark" it with the inclusion in your world-file or your set 
I would suggest to put it again into your /etc/portage/sets/gentoo-sources (or /var/lib/portage/world) and dont care about the message 'there are no ebuilds to satisfy "sys-kernel/gentoo-sources:6.6.13"' ... it is only a message.
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logrusx
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Joined: 22 Feb 2018
Posts: 2245
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| Posted: Mon Jun 24, 2024 11:38 am Post subject: |
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| midnite wrote: |
But recently I removed the /var/cache/binpkgs/* (while upgrade to profile 23.0) and some old gentoo-sources is not available in gentoo repos anymore. Having old versions in world sets gives me error while emerge.
| Code: | # emerge -pv @world
These are the packages that would be merged, in order:
Calculating dependencies ... done!
Dependency resolution took 1.04 s (backtrack: 0/20).
emerge: there are no ebuilds to satisfy "sys-kernel/gentoo-sources:6.6.13".
(dependency required by "@gentoo-sources" [set])
(dependency required by "@selected" [set])
(dependency required by "@world" [argument]) |
So I have to remove the old versions in the world sets files:
| Code: | # cat /etc/portage/sets/gentoo-sources
sys-kernel/gentoo-sources
sys-kernel/gentoo-sources:6.6.30 |
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No, you don't have to and that's what created the problem first place - you did something completely unnecessary. As pietinger said, put them back from where you removed them.
Best Regards,
Georgi |
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midnite
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Joined: 09 Apr 2006
Posts: 444
Location: Hong Kong
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| Posted: Mon Jun 24, 2024 11:47 am Post subject: |
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Thank you pietinger.
| pietinger wrote: | | You "mark" it with the inclusion in your world-file or your set |
May I ask how to "mark it with the inclusion" ? I tried adding the line <=sys-kernel/gentoo-sources:6.6.30. It does not protect gentoo-sources:6.6.13. It will be removed by depclean as the same as before.
| pietinger wrote: |
Dont care about the message 'there are no ebuilds to satisfy "sys-kernel/gentoo-sources:6.6.13"' ... it is only a message. |
Sadly, when I run emerge -av @world, if gentoo-sources:6.6.13 is in the world set file, emerge quits and does not let me to proceed.
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logrusx
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Joined: 22 Feb 2018
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| Posted: Mon Jun 24, 2024 11:51 am Post subject: |
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| midnite wrote: | Thank you pietinger.
| pietinger wrote: | | You "mark" it with the inclusion in your world-file or your set ;-) |
May I ask how to "mark it with the inclusion" ? I tried adding the line <=sys-kernel/gentoo-sources:6.6.30. It does not protect gentoo-sources:6.6.13. It will be removed by depclean as the same as before. |
That's not the correct line. Just put "sys-kernel/gentoo-sources:6.6.30" in world or in a set you've selected
| midnite wrote: | | pietinger wrote: |
Dont care about the message 'there are no ebuilds to satisfy "sys-kernel/gentoo-sources:6.6.13"' ... it is only a message. |
Sadly, when I run emerge -av @world, if gentoo-sources:6.6.13 is in the world set file, emerge quits and does not let me to proceed. |
If you do it as I told you above, that should not happen. If it does, open a new thread and use
| Code: | | wgetpaste -ic 'the command you're running' |
So that we can get as much information as possible at once and not go through the back and fourth of "provide this, provide that".
And please don't necrobump a 15 y.o. thread. Things in Gentoo change fast as well as the issue usually is not the issue you think it is.
Best Regards,
Georgi |
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midnite
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Location: Hong Kong
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| Posted: Mon Jun 24, 2024 12:25 pm Post subject: |
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Thank you Georgi.
Case 1. If there is only sys-kernel/gentoo-sources:6.6.30 in the world set file, depclean will remove sys-kernel/gentoo-sources:6.6.13.
Case 2. If there are both sys-kernel/gentoo-sources:6.6.13 and sys-kernel/gentoo-sources:6.6.30 in the world set file, emerge -av @world will not let me to proceed. (More details below.)
I guess you may add an unavailable package, e.g. sys-kernel/gentoo-sources:0.0.00, into the world file to reproduce my issue.
To my understanding, this occurs to me because I have removed the binary packages in /var/cache/binpkgs/*. For other users, emerge will find a previously installed package, (in this case, sys-kernel/gentoo-sources:6.6.13), in the local binary package files. Thus leaving a package, that is unavailable in online Gentoo repos, in the world files will not make emerge -av @world complains about it is not found.
To illustrate "emerge does not let me to proceed. It is not only a message", I have added a package that is not installed into the world set file, which is dev-util/checkbashisms.
| Code: | # cat /etc/portage/sets/gentoo-sources
sys-kernel/gentoo-sources
sys-kernel/gentoo-sources:6.6.13
sys-kernel/gentoo-sources:6.6.30
dev-util/checkbashisms |
dev-util/checkbashisms was not installed:
| Code: | # emerge -pv dev-util/checkbashisms
These are the packages that would be merged, in order:
Calculating dependencies ... done!
Dependency resolution took 1.02 s (backtrack: 0/20).
[ebuild N ] dev-util/checkbashisms-2.23.5::gentoo 969 KiB
Total: 1 package (1 new), Size of downloads: 969 KiB |
emerge does not let me to proceed. It complains about cannot find gentoo-sources:6.6.13.
| Code: | # emerge -av @world
These are the packages that would be merged, in order:
Calculating dependencies ... done!
Dependency resolution took 1.04 s (backtrack: 0/20).
emerge: there are no ebuilds to satisfy "sys-kernel/gentoo-sources:6.6.13".
(dependency required by "@gentoo-sources" [set])
(dependency required by "@selected" [set])
(dependency required by "@world" [argument])
# |
If it is only a message, even though sys-kernel/gentoo-sources:6.6.13 is not found, emerge should let me proceed to install dev-util/checkbashisms.
Thank you for suggestion. If the output if too long for a post, I will use wgetpaste.
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Hu
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| Posted: Mon Jun 24, 2024 12:39 pm Post subject: |
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| emerge -av @world tells Portage to try to install every package listed in @world. Every package thus selected must be installable. The old gentoo-sources ebuild no longer exists, so it is not installable. Listing a package in @world that is not presently installed is weird, but legal. Trying to install a package that cannot be installed is not legal. |
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midnite
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| Posted: Mon Jun 24, 2024 1:40 pm Post subject: |
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Thank you Hu.
| Hu wrote: | | Listing a package in @world that is not presently installed is weird, but legal. Trying to install a package that cannot be installed is not legal. |
I manually add dev-util/checkbashisms into world set file for the purpose to illustrate the situation: Having sys-kernel/gentoo-sources:6.6.13 in world set file will not let emerge @world to proceed.
(If I did not manually add a not presently installed package, and all my packages are up to date, emerge @world will not proceed anyway. I could not illustrate the differences.)
Back to the original question. In the output of depclean, there is a field named "protected". How to mark a package or a version such that it appears in the "protected" field?
| Code: | # emerge -pv --depclean
...
sys-kernel/gentoo-sources
selected: 6.6.13
protected: none
omitted: 6.6.30
...
>>> 'Selected' packages are slated for removal.
>>> 'Protected' and 'omitted' packages will not be removed. |
I came across this thread because it mentioned about the keyword "protect". But it is not concerning about this "protected" field. It is still about the same issue.
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logrusx
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| Posted: Mon Jun 24, 2024 2:01 pm Post subject: |
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Let me clarify what are the implications of what Hu said are.
Running emerge -av @world is not an update but rather rebuild command. It tells portage everything in world should be rebuilt including the non-existent package. Instead you should run update command by adding -u. And to be more precise, if you want full world update it whould be emerge -avuDU @world or emerge -avuDN @world, the latter should be used if you build binary packages and the former is recommended if you don't as it will not cause unnecessary rebuilds.
Best Regards,
Georgi |
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midnite
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| Posted: Mon Jun 24, 2024 3:57 pm Post subject: |
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Thank you Georgi, and all of you who helped me.
I understand now. It was my careless mistake.
The correct solution is, keeping the old versions (i.e. sys-kernel/gentoo-sources:6.6.13 , etc) in the world set files, even if it is no longer available. This avoids depclean removing them. And update entire system by emerge -avuND @world. With the options --update or --newuse or --changed-use, the unavailable packages will not stop emerge to proceed.
I used to update the system by emerge -avuND @world. I was just lazy and careless, which caused this confusion. Thank you again to everyone.
- - - -
On the other hand, as mentioned in the message from depclean, there is a field called "protected", and it says "'Protected' and 'omitted' packages will not be removed." What does that protected field mean? How to use it? I cannot find any documentation about this.
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logrusx
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| Posted: Mon Jun 24, 2024 5:13 pm Post subject: |
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| midnite wrote: |
On the other hand, as mentioned in the message from depclean, there is a field called "protected", and it says "'Protected' and 'omitted' packages will not be removed." What does that protected field mean? How to use it? I cannot find any documentation about this. |
It'll show only when there are multiple slots of some package installed. The one protected is required by something, either being a dependency of something, in world or in a user set. If there are multiple versions to be depcelaned and/or multiple versions protected, you'll get multiple entries in the output.
EDIT: actually I'm not sure which is protected and which - omitted. I guess the --exclude option is in play here too but since I don't have anything to clean, I don't see how I can run experiments and the man page or emerge doesn't describe --depclean's output.
Best Regards,
Georgi |
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