** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
** Changed in: initramfs-tools (Ubuntu)
Status: New => Confirmed
** Changed in: initramfs-tools (Ubuntu)
Importance: Undecided => High
** Changed in: initramfs-tools (Ubuntu)
Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli)
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https://bugs.launchpad.net/bugs/1879987
Title:
machine get stuck at boot if specified 'console=ttyS* ' doesn't exist.
Status in initramfs-tools package in Ubuntu:
Confirmed
Status in linux package in Ubuntu:
Incomplete
Bug description:
kernel get stucks at boot if console=ttyS* is specified in the kernel
cmdline and that serial HW isn't available on the system.
Reproduced with:
4.4 (from Xenial), 4.15 (from Bionic), 5.4 (native, Focal) and 5.7-next
(mainline)
Removing the non-existent 'console=ttyS*' parameter fixes the
situation.
I tested it using KVM/qemu, but it has been brought to my attention
that it was reproducible in VMware as well.
I think it is safe to say that it is unlikely to be specifics to a
certain virtualization technology type.
Didn't test on baremetal yet.
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