Red Hat Bugzilla – Bug 83661
Corrupted screen/view during kickstart install under serial console on bl10e
Last modified: 2016-04-18 05:39:34 EDT
Using a serial console during the OS installation, shows corrupted characters.
Under a RDP unattended install, we lay down a DOS partition on the server and
copy over Linux files onto the harddrive. At the next reboot, loadlin is used
to start the install, "loadlin vmlinuz
ks=nfs:10.0.0.3:/usr/cpqrdp/ss.620/rh81/bl10.ks.cfg initrd=initrd.img text
console=tty0 console=ttyS0, 115200n8". In watching the installation through the
serial console as the primary console, corrupted characters occur, for example
the rQm 232401 issue of waiting on user input for network device, appears on the
screen barely readable as "etwork..." and cannot see ethernet choices. Since I
know this issue, just pressing return, will continue with the installation, but
the text and package installation status bar are not clear, but can tell
something is installing/progressing. When I know that the installation is
complete, I can shut down the serial console window and open another to come to
the Linux prompt. The serial console is good after the installation reboot.
This issue is for during the installation.
This same command line is used with RH80 installs with no issues. The text mode
installation appears as black/white text not blue/red color where this corrupted
view for RH81 is in blue/red.
Things I tried to correct this without success.
* Thinking this is a emulation problem, added the ",vt100" to end of
console=ttyS0,115200n8. Searched on web for advice on how to indicate vt100
emulation via the serial console argument but didn't find anything.
* Thinking the kernel command line text isn't working (like we found with UL),
put "text" in bl10e.ks.cfg kickstart file.
* The only diff between RH80 and RH81 call is the version of loadlin (and
obviously the vmlinuz and initrd.img that are RH81) -- rQm 232368, where I need
to use the 1.6c version versus 1.6. Using loadlin 1.6 with RH80 hasn't been an
issue for me. I did a RH80 install test using loadlin 1.6c and the serial
console install was just fine, no corrupted characters.
Removing the console=ttyS0,115200n8 from the command line, then the console view
through a debug adapter connected on the front of the blade, shows the install
with no issues.
Action by: Bryan.Leopard
ISSUE TRACKER 15384, opened as sev 2
Do you have a UTF-8 capable serial console attached?
This seems like a dup of 83024.
Response: No we have a vt100 serial console. It is not UTF-8 capable.
We have attempted to change the term type to vt100 trying the TERM=vt100
parameter in the loadlin vmlinuz kernel command line. This did not work.
Either the kernel needs to default to vt100 for *serial console* when it is the
primary console OR we need a way to indicate on the kernel command line that we
need vt100 terminal type.
Attached is an example screen shot showing the corrupted characters using
File uploaded: hyperterm.jpg
Created attachment 90072 [details]
hyperterm.jpg (scren capture)
*** This bug has been marked as a duplicate of 83024 ***
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.