24b363db31
When there is only console=hvc0 (i.e. no output to emulated VGA) and GRUB_TIMEOUT is set to 0, VM startup hangs. This may be very well some race condition broken by either of console=tty0 or GRUB_TIMEOUT > 0, but even in such a case, apply this as a workaround for now.
10 lines
433 B
Plaintext
10 lines
433 B
Plaintext
# make sure to use /dev/mapper/dmroot, not /dev/xvda directly - both have the
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# same fs, including UUID
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GRUB_DISABLE_LINUX_UUID=true
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GRUB_DISABLE_OS_PROBER=true
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GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX root=/dev/mapper/dmroot console=hvc0 console=tty0"
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# make SWIOTLB smaller - it isn't really needed unless PCI passthrough is used,
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# and even then, 16MB is enough
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GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX swiotlb=8192"
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GRUB_TIMEOUT=0
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