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man/virt-install: Add a note about different behavior of --boot on s390x

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It is common on x86 and other architectures to install a guest from
network by using "--boot hd,network" with virt-install - as long as
the hard disk is not bootable yet, the installation will be started
via network, and once it finished, the guest can boot from hd during
the next reboot.

However, this does not work on s390x since this architecture only
supports one single boot device to be passed to the guest. Thus add
a note to the documentation to avoid that people are running again
into this common pitfall.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2032472
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Thomas Huth 2023-01-31 12:35:49 +01:00 committed by Cole Robinson
parent 7769548411
commit 102fe52165
1 changed files with 2 additions and 0 deletions
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man/virt-install.rst
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@ -929,6 +929,8 @@ Some examples:
``--boot cdrom,fd,hd,network`` ``--boot cdrom,fd,hd,network``
Set the boot device priority as first cdrom, first floppy, first harddisk, Set the boot device priority as first cdrom, first floppy, first harddisk,
network PXE boot. network PXE boot.
Note: s390x guests only support one boot device, so everything except
the first device type will be ignored.
``--boot kernel=KERNEL,initrd=INITRD,kernel_args="console=/dev/ttyS0"`` ``--boot kernel=KERNEL,initrd=INITRD,kernel_args="console=/dev/ttyS0"``
Have guest permanently boot off a local kernel/initrd pair, with the Have guest permanently boot off a local kernel/initrd pair, with the