On Mon, Mar 1, 2021 at 7:18 AM Andras Simon <sza...@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/
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