On Mon, Mar 1, 2021 at 7:18 AM Andras Simon <szajmi(a)gmail.com> wrote:
Just out of curiosity: if package B depends on A, shown by the that
removing A removes B, too, how come that after removing both, B can be
installed without installing A?
Here's what happened:
# dnf erase kernel-debug-*
Dependencies resolved.
================================================================================
Package Arch Version Repository
Size
================================================================================
Removing:
kernel-debug-core x86_64 5.10.8-100.fc32 @updates
77 M
kernel-debug-core x86_64 5.10.17-100.fc32 @updates
77 M
kernel-debug-core x86_64 5.10.18-100.fc32 @updates
77 M
kernel-debug-modules x86_64 5.10.8-100.fc32 @updates
31 M
kernel-debug-modules x86_64 5.10.17-100.fc32 @updates
31 M
kernel-debug-modules x86_64 5.10.18-100.fc32 @updates
31 M
kernel-debug-modules-extra x86_64 5.10.8-100.fc32 @updates
2.0 M
kernel-debug-modules-extra x86_64 5.10.17-100.fc32 @updates
2.0 M
kernel-debug-modules-extra x86_64 5.10.18-100.fc32 @updates
2.0 M
Removing dependent packages:
NetworkManager-l2tp x86_64 1.8.2-1.fc32 @fedora
579 k
Removing unused dependencies:
ldns x86_64 1.7.0-29.fc32 @fedora
425 k
libreswan x86_64 4.2-1.fc32 @updates
4.3 M
nss-tools x86_64 3.60.1-1.fc32 @updates
2.3 M
xl2tpd x86_64 1.3.14-2.fc32 @fedora
205 k
Transaction Summary
================================================================================
Remove 14 Packages
Freed space: 335 M
Is this ok [y/N]: y
[...]
dnf install NetworkManager-l2tp
Last metadata expiration check: 1:08:42 ago on Mon 01 Mar 2021 12:48:36 PM
CET.
Dependencies resolved.
================================================================================
Package Arch Version Repository
Size
================================================================================
Installing:
NetworkManager-l2tp x86_64 1.8.2-1.fc32 fedora
174 k
Installing dependencies:
kernel-modules-extra x86_64 5.10.18-100.fc32 updates
2.0 M
ldns x86_64 1.7.0-29.fc32 fedora
165 k
nss-tools x86_64 3.60.1-1.fc32 updates
529 k
xl2tpd x86_64 1.3.14-2.fc32 fedora
95 k
Installing weak dependencies:
libreswan x86_64 4.2-1.fc32 updates
1.2 M
Transaction Summary
================================================================================
Install 6 Packages
Total download size: 4.1 M
Installed size: 9.8 M
Is this ok [y/N]: y
The NetworkManager-l2tp package depends on xl2tpd, which depends on
kmod(l2tp_ppp.ko).
$ dnf repoquery --whatprovides 'kmod(l2tp_ppp.ko)'
kernel-debug-modules-extra-0:5.10.18-200.fc33.x86_64
kernel-modules-extra-0:5.10.18-200.fc33.x86_64
When you removed kernel-debug-modules-extra, your system did not have
kernel-modules-extra installed, leaving it with no packages providing
kmod(l2tp_ppp.ko). Therefore, xl2tpd had to be removed, which in turn
required the removal of NetworkManager-l2tp.
When you reinstalled NetworkManager-l2tp, its dependency on xl2tpd required
something providing kmod(l2tp_ppp.ko) to be installed. Of the two packages
that provide kmod(l2tp_ppp.ko), kernel-modules-extra has the shorter name,
so it was installed to satisfy the dependency. (Yum, at least, used the
"shorter name" rule. I'm just guessing that dnf does likewise.)
--
Jerry James
http://www.jamezone.org/