I had the same issue when I upgraded one machine from 14.0 to 14.1 using slackpkg with a WIFI connection. The connection was not quite good and from time to time I lost it. When the connection was lost, the package currently being downloaded was not saved on the PC and slackpkg continued to the next file to be downloaded (either a package or an asc signature file).
[off-topic]by default, slackpkg downloads first all the packages selected before installing them, this can be changed by setting DOWNLOAD_ALL=off in /etc/slackpkg/slackpkg.conf[/off-topic]
After installing the packages that were successfully downloaded, slackpkg tried to download again the packages whose download failed the first time. During the second attempt, some packages were successfully installed and others failed again.
After this second trial, there was no third one and slackpkg reported the warning only once for packages that could be installed after the second download and twice for those packages when first and second attempts at download failed.
An example: let's say, I want to download 3 packages: aaaa, bbbb, cccc
During the first download pass of slackpkg:
aaaa.txz => donwload OK
aaaa.txz.asc => download OK
bbbb.txz => download OK
bbbb.txz.asc => download NOT OK
cccc.txz => download NOT OK
ccc.txz.asc = > download NOT OK
During the installation pass of slackpkg:
aaaa.txz => installed
bbbb.txz => not installed because of download error of asc signature file
cccc.txz => not installed because of download error
Then slackpkg tries again to download and install bbbb and cccc:
bbbb.txz => download OK
bbbb.txz.asc => download NOT OK
cccc.txz => download OK
ccc.txz.asc = > download OK
then slackpkg installs cccc.txz but not bbbb.txz and reports the following warnings
Code:
One or more errors occurred while slackpkg was running:
bbbb.txz: md5sum
cccc.txz: md5sum
bbbb.txz: md5sum
To sum it up. If the package appears only one time, it's OK the package was properly installed (during the second try). But if the package appears twice in the report, it was not installed.
At least that's my own experience