How to deepclean all packages except current kernel realted

[jmanko]

I'd like to remove all old packages, except for anything related to the current kernel source and headers. I generated my kernel with genkernel.

[fedeliallalinea]

You can add kernel in your world file with emerge --noreplace sys-kernel/gentoo-sources:<slot_number> or passing --exclude=sys-kernel/gentoo-sources as option to emerge --depclean

[Muso]

I'd like to remove all old packages, except for anything related to the current kernel source and headers. I generated my kernel with genkernel.

emerge --depclean will not remove your current kernel, only your older kernel sources.

After running --depclean, you should mount /boot and clean out the old kernel images from there as well, then :

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cd /usr/src

Double check your current kernel with :

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uname -a

Then remove the old kernel... so, for example, let's say you are using 4.20.5-gentoo-sources, and you have 4.20.4 & 4.20.3 also in /usr/src. Do not remove /usr/src/linux nor your current version, but you can safely remove the older ones.

[jmanko]

Thank you both for replies! I will get on this now.

[cboldt]

Other remnants not reached by --depclean are in /lib/modules

[leifbk]

Use the --exclude parameter to not depclean particular packages. Here's my standard depclean:

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balapapa ~ # emerge -aq --depclean --exclude sys-kernel/gentoo-sources --exclude dev-db/postgresql

I've got this little script called "purge" in /root that I'm running to clean out an old kernel:

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#! /bin/sh

if [ "$#" -eq 0 ] ;
then
    echo -e "Usage: $0 x.y.z (kernel version)"
    exit 1
else
    emerge --depclean --quiet =sys-kernel/gentoo-sources-$1
    echo "deleting usr/src/linux-$1-gentoo ..."
    rm -r /usr/src/linux-$1-gentoo
    echo "deleting /lib64/modules/$1-gentoo ..."
    rm -r /lib64/modules/$1-gentoo
    echo "deleting /boot/*-$1-gentoo ..."
    rm /boot/*-$1-gentoo
fi

Thus, "./purge 4.20.3" will clean out that kernel version.

FYI, here's also my script for auto-generating a new kernel, "/root/newk" (named after one of my favourite old jazz saxophonists, Sonny "Newk" Rollins):

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#! /bin/sh

echo -ne "\033]0;Newk running\007"
zcat /proc/config.gz > /usr/src/linux/.config
cd /usr/src/linux
make olddefconfig
cd
genkernel --oldconfig all

Remember to do an "eselect kernel" first.

[Fitzcarraldo]

I currently have kernel 4.12.12-gentoo installed:

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# uname -r
4.12.12-gentoo

As I like to keep the kernel sources for the currently-installed kernel plus the newest kernel in the portage tree, I have the following in the world file:

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# grep gentoo-sources /var/lib/portage/world
sys-kernel/gentoo-sources
sys-kernel/gentoo-sources:4.12.12

Then depclean leaves those two installed kernel packages alone:

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# emerge --ask --depclean

 * Always study the list of packages to be cleaned for any obvious
 * mistakes. Packages that are part of the world set will always
 * be kept.  They can be manually added to this set with
 * `emerge --noreplace <atom>`.  Packages that are listed in
 * package.provided (see portage(5)) will be removed by
 * depclean, even if they are part of the world set.
 * 
 * As a safety measure, depclean will not remove any packages
 * unless *all* required dependencies have been resolved.  As a
 * consequence of this, it often becomes necessary to run 
 * `emerge --update --newuse --deep @world` prior to depclean.

Calculating dependencies... done!
>>> Calculating removal order...

>>> These are the packages that would be unmerged:                                                                                                                                                                                                 

 sys-kernel/gentoo-sources
    selected: 4.20.0 
   protected: none 
     omitted: 4.12.12 4.20.5 

All selected packages: =sys-kernel/gentoo-sources-4.20.0

>>> 'Selected' packages are slated for removal.
>>> 'Protected' and 'omitted' packages will not be removed.

Would you like to unmerge these packages? [Yes/No] Yes
>>> Waiting 5 seconds before starting...
>>> (Control-C to abort)...
>>> Unmerging in: 5 4 3 2 1
>>> Unmerging (1 of 1) sys-kernel/gentoo-sources-4.20.0...
Packages installed:   1626
Packages in world:    339
Packages in system:   43
Required packages:    1626
Number removed:       1

 * GNU info directory index is up-to-date.

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# eix -I gentoo-sources
[I] sys-kernel/gentoo-sources
     Available versions:  
     (4.4.164) 4.4.164^bs
     (4.4.170) (~)4.4.170^bs
     (4.4.171) (~)4.4.171^bs
     (4.4.172) (~)4.4.172^bs
     (4.9.140) 4.9.140^bs
     (4.9.150) (~)4.9.150^bs
     (4.9.151) (~)4.9.151^bs
     (4.9.152) (~)4.9.152^bs
     (4.9.153) (~)4.9.153^bs
     (4.12.12) (~)4.12.12^bs[1]
     (4.14.83) 4.14.83^bs
     (4.14.92) (~)4.14.92^bs
     (4.14.93) (~)4.14.93^bs
     (4.14.95) (~)4.14.95^bs
     (4.14.96) (~)4.14.96^bs
     (4.19.14) (~)4.19.14^bs
     (4.19.15) (~)4.19.15^bs
     (4.19.16) (~)4.19.16^bs
     (4.19.17) (~)4.19.17^bs
     (4.19.18) (~)4.19.18^bs
     (4.20.0) (~)4.20.0^bs
     (4.20.1) (~)4.20.1^bs
     (4.20.2) (~)4.20.2^bs
     (4.20.3) (~)4.20.3^bs
     (4.20.4) (~)4.20.4^bs
     (4.20.5) (~)4.20.5^bs
       {build experimental symlink}
     Installed versions:  4.12.12(4.12.12)^bs[1](23:11:38 20/01/18)(-build -experimental -symlink) 4.20.5(4.20.5)^bs(01:52:57 29/01/19)(-build -experimental -symlink)
     Homepage:            https://dev.gentoo.org/~mpagano/genpatches
     Description:         Full sources including the Gentoo patchset for the 4.20 kernel tree

[1] "local_overlay" /usr/local/portage

[depontius]

I'd like to remove all old packages, except for anything related to the current kernel source and headers. I generated my kernel with genkernel.

emerge --depclean will not remove your current kernel, only your older kernel sources.

After running --depclean, you should mount /boot and clean out the old kernel images from there as well, then :

Code: Select all

cd /usr/src

Double check your current kernel with :

Code: Select all

uname -a

Then remove the old kernel... so, for example, let's say you are using 4.20.5-gentoo-sources, and you have 4.20.4 & 4.20.3 also in /usr/src. Do not remove /usr/src/linux nor your current version, but you can safely remove the older ones.

Don't forget about the old kernel entries in /lib/modules, too. Those chew up quite a bit of space.