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Bug 928269

Summary: Warning: 'serial' is deprecated and has been removed.
Product: Red Hat Enterprise Linux 7 Reporter: Jan Stancek <jstancek>
Component: anacondaAssignee: Will Woods <wwoods>
Status: CLOSED CURRENTRELEASE QA Contact: Release Test Team <release-test-team-automation>
Severity: high Docs Contact:
Priority: high    
Version: 7.0CC: jburke, mbanas, mkovarik, rvokal
Target Milestone: beta   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-06-13 11:44:57 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Jan Stancek 2013-03-27 09:49:23 UTC 
Description of problem:
I'm getting following warning about 'serial' option:
dracut-cmdline[67]: Warning: 'serial' is deprecated and has been removed. 
dracut-cmdline[67]: Warning: To change the console use 'console=' instead. 

which according to https://fedoraproject.org/wiki/Anaconda_Boot_Options is the only way to "Carry over console settings to the installed system"

Version-Release number of selected component (if applicable):
anaconda-18.37.11-13.el7

How reproducible:
100%

Steps to Reproduce:
1. start installation with 'serial'
  
Actual results:
warning

Expected results:
no warning, 'serial' option supported

Additional info:
Comment 2 Chris Lumens 2013-03-27 13:15:53 UTC 
The documentation needs to be updated, not the serial option.
Comment 3 Jan Stancek 2013-03-27 13:47:55 UTC 
(In reply to comment #2)
> The documentation needs to be updated, not the serial option.

Is there a replacement for serial? For example, we currently have "console=ttyS0,115200 serial" on command line and serial console works during installation and also after first boot (including grub).
Comment 4 Bill Nottingham 2013-03-27 21:09:17 UTC 
Just remove 'serial' and you should be fine...
Comment 5 Jan Stancek 2013-03-27 21:49:15 UTC 
(In reply to comment #4)
> Just remove 'serial' and you should be fine...

Without 'serial', serial console doesn't work after reboot:

# cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.8.0-0.40.el7.x86_64 root=/dev/mapper/rhel_intel--waimeabay--hedt--01-root ro rd.md=0 rd.dm=0 crashkernel=auto rd.luks=0 rd.lvm.lv=rhel_intel-waimeabay-hedt-01/swap vconsole.keymap=us rd.lvm.lv=rhel_intel-waimeabay-hedt-01/root rhgb quiet

# cat /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="rd.md=0 rd.dm=0 $([ -x /usr/sbin/rhcrashkernel-param ] && /usr/sbin/rhcrashkernel-param || :) rd.luks=0 rd.lvm.lv=rhel_intel-waimeabay-hedt-01/swap vconsole.keymap=us rd.lvm.lv=rhel_intel-waimeabay-hedt-01/root rhgb quiet"
GRUB_DISABLE_RECOVERY="true"
GRUB_THEME="/boot/grub2/themes/system/theme.txt"
Comment 6 Will Woods 2013-04-11 17:38:37 UTC 
(In reply to comment #5)
> Without 'serial', serial console doesn't work after reboot

Confirmed in testing here. Should be fixed in this commit:

  https://git.fedorahosted.org/cgit/anaconda.git/commit/?id=0b64177

From the commit message, here's the intended behavior:

  * "serial" is deprecated and ignored; try "console=ttyS0" instead.
  * If you use "console=XXX" it will be preserved in the installed system.
  * If multiple "console=XXX" args are used, the *last* one is preserved.
Comment 8 Michal Kovarik 2014-02-04 09:40:01 UTC 
Verified on anaconda-19.31.50-1, serial option is ignored. "console" is preserved in the installed system.
Comment 9 Ludek Smid 2014-06-13 11:44:57 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.