On 4/12/21 11:12 AM, home user wrote:
(context)
In the "invisible application after upgrade" thread, Ed did not know how
I did my upgrade to f33. I responded that I mostly followed the Fedora
upgrade instructions from here:
"https://docs.fedoraproject.org/en-US/quick-docs/dnf-system-upgrade/";,
and listed the sequence of commands that I did. That included the steps
symlinks -r /usr | grep dangling
symlinks -r -d /usr
from the "Clean-Up Old Symlinks" section. Andras responded that
> This isn't necessarily a good idea, because those dangling symlinks
> may belong to their respective packages. If so, removing them will
> compromise the integrity of the package they belong to.
If Andras is correct, then the upgrade instructions need to be changed.
Based on past experience, when a bug is submitted against Fedora
documentation, the Fedora documentation team will want suggestions on
how the document should be worded.
(question 1)
What should the instructions say? Is there a better yet easy and safe
way to find and clean out dangling symlinks? Maybe more detail should
accompany "After you verify the list of broken symlinks"?
(question 2)
In a later post, Andras provided and example of a dangling symlink (in
the "hunspell" package) that should not be deleted. When I was a C/C++
programmer (a long long time ago, in a galaxy far far away), dangling
pointers (and memory leaks) were naughty; they can cause serious
problems. Isn't a dangling symlink a file system parallel to a dangling
pointer in a C/C++ program? What good, valid purpose is there for a
package to have a dangling symlink? Or maybe "hunspell" needs a little
clean-up?
I have submitted a bug. Here is the link:
"https://bugzilla.redhat.com/show_bug.cgi?id=1952656";.
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