Enable Serial Console on Boot: Difference between revisions
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=== Example update-extlinux.conf === | === Example update-extlinux.conf === | ||
The update-extlinux.conf apparently can't set the SERIAL parameters in the /boot/extlinux.conf file. | |||
But it can at least set the kernel console line. | |||
To do so, change the default entry: | |||
default_kernel_opts="quiet" | |||
to read like this: | |||
default_kernel_opts="console=ttys0,9600" | default_kernel_opts="console=ttys0,9600" | ||
Notice | Notice, if you want to use this for a Xen VM, | ||
you need to configure the speed at 115200 bps and enable the "serial=pty" setting in the VM config file. | |||
[[Category:Booting]] | [[Category:Booting]] | ||
[[Category:Installation]] | [[Category:Installation]] | ||
Revision as of 23:57, 10 March 2014
How to Enable the Serial Console on Boot (1.10.x)
When using syslinux to boot, you'll need to modify the syslinux.cfg file in the root directory of the boot device. If using a disk-based Alpine, modify the /boot/extlinux.cfg file.
Add the following:
- serial 0 9600
- add console=ttyS0,9600 to the append parameter
- optionally, remove quiet from the append parameter
Example syslinux.cfg
serial 0 9600
timeout 20
prompt 1
default grsec
label grsec
kernel /boot/grsec
append initrd=/boot/grsec.gz alpine_dev=sda1:vfat modules=sd-mod,usb-storage console=ttyS0,9600
Example update-extlinux.conf
The update-extlinux.conf apparently can't set the SERIAL parameters in the /boot/extlinux.conf file. But it can at least set the kernel console line.
To do so, change the default entry: default_kernel_opts="quiet" to read like this: default_kernel_opts="console=ttys0,9600"
Notice, if you want to use this for a Xen VM, you need to configure the speed at 115200 bps and enable the "serial=pty" setting in the VM config file.