bl-welcome error

dmontaine · 2024-01-19 16:07:35

If everything is chosen for install, then during the actual install the output becomes chaotic, with text overwriting existing text and ending up with a mess on the screen. It works correctly, just looks bad.

johnraff · 2024-01-20 01:48:44

^There is some messing up of text formatting sometimes, but in my experience it's only been for short periods, occasionally when apt is performing some operations. I haven't seen any overwriting of text, though, just messed-up line breaks.

The text formatting recovers when the script gets back to actual user interaction, I hope?

What do you mean by "everything is chosen for install"? Saying yes to every option offered? That's an unusual choice, but I'll try it on my VM install and see what happens.

rbh · 2024-01-20 11:04:47

johnraff wrote:

^There is some messing up of text formatting sometimes,

No, it is allways. Not nice, but no big deal...

but in my experience it's only been for short periods, occasionally when apt is performing some operations.

Output of bl-welcome, is ok until after output from "apt update". It's only the formating of text from output of "apt upgrade", when getting packages.
First line of "get ..." is shifted to the right some 100 pixels. Next line shifted additional a couple of pixels to the right and so on. Makes it harder to read.
When apt starts unpacking, output is ok again and remains so.

johnraff · 2024-01-21 09:19:30

rbh wrote:

johnraff wrote:
^There is some messing up of text formatting sometimes,
No, it is allways. Not nice, but no big deal...
but in my experience it's only been for short periods, occasionally when apt is performing some operations.
Output of bl-welcome, is ok until after output from "apt update". It's only the formating of text from output of "apt upgrade", when getting packages.
First line of "get ..." is shifted to the right some 100 pixels. Next line shifted additional a couple of pixels to the right and so on. Makes it harder to read.
When apt starts unpacking, output is ok again and remains so.

I just installed a long list of packages via bl-welcome, and what's happening is that each "Get:" line is started level with the end of the previous line. For some reason a new line is started but the carriage return has been lost. On Windows I think that would be \n without the usual \r added. But in Unix generally \n is enough to start a new line and do a carriage return.

I don't know why this is happening - as you say it's not pretty, but things return to normal as soon as the package downloading stage is over. When I have some free time I might play with some simplified scripts to see if I can put my finger on what is triggering this behaviour...

It likely won't be simple because this is apt's internal workings printing out to the terminal.

Last edited by johnraff (2024-01-21 09:26:08)

rbh · 2024-01-21 09:49:58

johnraff wrote:

I just installed a long list of packages via bl-welcome, and what's happening is that each "Get:" line is started level with the end of the previous line.

Maybe on your screen, but not on my screens.

this is apt's internal workings printing out to the terminal.

The output of command "apt upgrade" works ok. So something in the welcome-script or common BL script disturbs the output from apt.

rbh · 2024-01-21 10:21:25

Interesting: I logged in to other computer with ssh. Output from bl-welcome script normal!

johnraff · 2024-01-22 04:38:24

rbh wrote:

johnraff wrote:
I just installed a long list of packages via bl-welcome, and what's happening is that each "Get:" line is started level with the end of the previous line.
Maybe on your screen, but not on my screens.

Here is my (on a qemu VM) terminal output from bl-welcome while downloading packages to install:

See how each Get line after Get:1 starts at the same indentation as the previous line ends? It looks like a new line without the usual carriage return.
Maybe you could post a similar screenshot so we can compare?

Another interesting point: the same section in ~/.cache/bunsen-welcome/bl-welcome.log is quite normally formatted:

I get the impression apt might be using wget to download files - wget flashed up briefly in my network monitor. But in the earlier section of the script when apt is running update, it is fetching (index) files with similar lines starting with Get: but they are formatted normally.

Anyway, the immediate task at hand is to release Boron.

johnraff wrote:

When I have some free time I might play with some simplified scripts to see if I can put my finger on what is triggering this behaviour.

Please feel free to do your own investigations in the meantime. The ssh result was interesting.

#1 2024-01-19 16:07:35

bl-welcome error

#2 2024-01-20 01:48:44

Re: bl-welcome error

#3 2024-01-20 11:04:47

Re: bl-welcome error

#4 2024-01-21 09:19:30

Re: bl-welcome error

#5 2024-01-21 09:49:58

Re: bl-welcome error

#6 2024-01-21 10:21:25

Re: bl-welcome error

#7 2024-01-22 04:38:24

Re: bl-welcome error

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