Why does logwatch hang processing sshd on a fresh install of Ubuntu 18.04 server?

$   sudo logwatch --service sshd --debug 100 ... TimeFilter: Period is day  TimeFilter: SearchDate is (2019-10-13T..:..:..\.[0-9]+[+-][0-9]{2}:[0-9]{2} )  TimeFilter: Debug SearchDate is (2019-10-13T \ [0-9]+[+-][0-9]{2} [0-9]{2} ) DEBUG: Inside ApplyStdDate... DEBUG: Looking For: (Oct 13 ..:..:.. ) DEBUG: Looking For: (2019-10-13T..:..:..\.[0-9]+[+-][0-9]{2}:[0-9]{2} )  export LOGWATCH_LOGFILE_LIST='/var/log/auth.log /var/log/auth.log.1 ' export LOGWATCH_ARCHIVE_LIST='/var/log/auth.log.2.gz /var/log/auth.log.3.gz /var/log/auth.log.4.gz ' Processing Service: sshd  ( cat /var/cache/logwatch/logwatch.xV7LYbVy/secure  |  /usr/bin/perl /usr/share/logwatch/scripts/shared/onlyservice 'sshd' |/usr/bin/perl /usr/share/logwatch/scripts/shared/removeheaders '' |/usr/bin/perl /usr/share/logwatch/scripts/services/sshd) 2>&1   TimeFilter: Period is day  TimeFilter: SearchDate is ( 2019-Oct-13 ..h ..m ..s )  TimeFilter: Debug SearchDate is ( 2019-Oct-13 h m s ) 

That’s it. It’s hung.

If I say --service cron it completes normally in an instant. Works fine with sudo logwatch --service -sshd too.

wifi randomly dies on fresh install of ubuntu 18.04.1

My wifi randomly cuts out and stays dead until I reboot. This seems to happen after about 5 or 10 minutes. I’ve tried all the many dozens of solutions posted on this forum for this, but none avail. When I boot in windows mode, wifi works fine. Funny thing is I have linux versions that are one and two decades old, and they work fine. I have wifi sleep turned off, as well as a bunch of other things. I’m getting a lot of these errors when this happens. It looks like there might be a problem with the way DMA is being attempted:

ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMA

ath: phy0: Chip reset failed ath: phy0: Unable to reset channel, reset status -22 ath: phy0: Chip reset failed

Any help is greatly appreciated. I’ve literally tried dozens of solutions on this forum and none have helped. I’d really like to be up and running with a modern version of linux as the supplied compilers and other things could be much improved.

N00b: Did I break my fresh ubuntu 19.04 install while apt-get upgrade -ing with a kali repo enabled?

1Yesterday I installed Disco Dingo and was very pleased with it. I wanted to install the kali tools so I added the kali repo and used katoolin to install some tools. I did not remove the repo. About 1.5 hours ago, I learned that Gnome 3.34 has been released today and I wanted to have the “folder” functionality within the “show applications” grid, so I thought… well, maybe… it’s there in the ubuntu repo. And didn’t think anything of the kali repo still being there.

So I apt-get updated and I apt-get upgraded and I blew my house down! 🙂

Orrr… well, sort of. I let it run. Got all sort of stuff from the kali repo. Rebooted. Got some errors. A bit of the boot process changed, at least visually. And… well… I think I am running kernel 5.0.0 now.

On the one hand I feel “lucky”: kali is quite up to date. And it did upgrade all those packages, and, even though some errors pop up, the system is still functioning. Should I try fixing those errors and continue with the new packages or…. ? New is better, right? If it still functions. This seems to be a frankensystem now. During boot my machine also says it is loading kali. After that the loading ubuntu screen pops up.

However… is this what is considered “breaking” a linux install by messing with repositories and not being carefull enough? Did I just get very lucky that my system is still working? Because it seemed to upgrade an awfull lot of packages.

Should I reinstall? Or should I stop whining, dig into it and fix whatever blubber the system throws at me? It’s linux, everything is fixable, and it would clear me of my n00bness… 😉

Thanks on any advice you could give me on this one… I would like to hear your thoughts. I mean… I’m n00b.

No internet for Ubuntu 19.04 fresh install

I was using Ubuntu 18.04 on my desktop without any internet issue. Due to hardware issue (SMTP), the computer was restarting every now and then. During that time, I reinstalled Ubuntu 19.04.

But now, there is no internet, neither through wifi nor through ethernet cable connection.

I have tried live USB of both 18.04 and 19.04. In the live usb also it is all same, there is no wifi or ethernet connection.

I have installed ubuntu by using live dvd as well as live usb but no luck.

I have searched internet and this forum extensively but still could not solve the problem.

Help needed.

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Fresh system installation keeping some partitions untouched

I am running 14.04 LTS and would like to upgrade to 16.04 LTS with a complete reinstall. One of the motives behind the complete reinstall is that there is a dualboot system with a zombie Windows I want to get rid of. So it is fine for me that the new Ubuntu release takes hold of the hard-disk resources in full once again.

There are two partitions, though, that I would like to keep in place out of convenience: those where I had mounted /home and /opt. Of course I am aware that backup is just as important as clean water, and that I can resort to that after a brute-force reinstall.

However, I wondered if, during a complete reinstall, I could instruct the installation medium of 16.04 not to wipe those specific partitions, so than I can mount them again when the new Ubuntu is in place?

Same question holds in the scenario I move onwards from 16.04 to 18.04.

It is worth mentioning that /home is encrypted, in case this complicates the matter, although this question and answer Why can I not deselect "encrypt my home folder"? gives a hint of what will happen. Confirm/confute welcome.