Ubuntu
cloud-init package

  1. Bug #1473527
  2. Comment #11

Comment 11 for bug 1473527

Revision history for this message
Paride Legovini (paride) wrote :

Focal:

root@ip-172-31-24-163:~# dmesg | grep console
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.4.0-1024-aws root=PARTUUID=a2f52878-01 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1
[ 2.184073] ACPI: SPCR: console: uart,mmio,0xc5a00000,115200
[ 2.189603] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.4.0-1024-aws root=PARTUUID=a2f52878-01 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1
[ 3.954119] printk: console [tty1] enabled
[ 4.022533] printk: console [ttyS0] enabled
[ 4.968930] printk: console [ttyS0] disabled
[ 5.910255] printk: console [ttyS0] enabled

Groovy:

root@ip-172-31-20-184:~# dmesg | grep console
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.8.0-1004-aws root=PARTUUID=654e5f57-01 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1
[ 1.440395] ACPI: SPCR: console: uart,mmio,0xc5a00000,115200
[ 1.445875] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.8.0-1004-aws root=PARTUUID=654e5f57-01 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1
[ 3.207680] printk: console [tty1] enabled
[ 3.277829] printk: console [ttyS0] enabled
[ 3.561696] fbcon: Taking over console

Note that Groovy has:

[ 3.561696] fbcon: Taking over console

Maybe in newer kernels /dev/console is taken over by a broken framebuffer console?