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Add -noBios/-legacy/-legacyboot boot option.

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For supporting MBR boot options.
This commit is contained in:
Jared J
2023-09-14 12:47:52 +10:00
parent a8f1b900f8
commit e52c509487
2 changed files with 15 additions and 2 deletions
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4
README.md
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@@ -185,6 +185,10 @@ Optionally pass a kernel file either self compiled or straight out of /boot to t
An optional bios path. If not set the script will try `/usr/share/ovmf/x64/OVMF_CODE.fd` if available.
`-noBios` / `-legacy` / `-legacyboot`
Skip adding a pflash device for UEFI booting. This will boot in qemu's default BIOS mode instead of UEFI.
`-biosvars /tmp/OVMF_VARS.4m.fd`
Manually specify a bios variables file for qemu to use. Needed for Secureboot / Win11.
You must copy the default OVMF_VARS.fd on your system to a new unique path for your VM OS.

13
main
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@@ -46,6 +46,9 @@ function printHelp {
printer " ${colors[cyan]}-bios /usr/share/ovmf/x64/OVMF_CODE.secboot.4m.fd"
printer " Manually specify a bios for qemu to use. Required if the script cannot automatically find one."
printer " ${colors[cyan]}-noBios / -legacy / -legacyboot"
printer " Skip adding a pflash device for UEFI booting. This will boot in qemu's default BIOS mode instead of UEFI."
printer " ${colors[cyan]}-biosvars /tmp/OVMF_VARS.4m.fd"
printer " Manually specify a bios variables file for qemu to use. Needed for Secureboot / Win11."
printer " You must copy the default OVMF_VARS.fd on your system to a new unique path for your VM OS."
@@ -936,6 +939,9 @@ do
memoryArgs="$2"
shift
;;
-nobios|-legacy|-legacyboot)
noBios=1
;;
-nocolor|-nocolors|-nocolor|-nocolors)
unset colors # Pretty simple color killer.
;;
@@ -1130,7 +1136,10 @@ else
if [ ! -f "$biosPath" ] ; then printer "${colors[red]}-bios\t\tdoesn't appear to exist: ${colors[none]}\t${biosPath}" ; ((++expectLaunchIssue)) ; fi
fi
if [ -n "$biosVars" ]
if [ -n "$noBios" ]
then
printer "${colors[green]}-nobios\t\tspecified. Booting standard non-UEFI."
elif [ -n "$biosVars" ]
then
if [ ! -f "$biosVars" ]
then
@@ -1266,7 +1275,7 @@ fi
smpArgs="-smp sockets=1,cores=$guestCores,threads=$guestThreads"
coreArgs="$machineArgs -enable-kvm -m $guestmemoryMB $cpuArgs $smpArgs"
coreArgs+=" -name $(basename $0),debug-threads=on"
coreArgs+=" -drive if=pflash,format=raw,unit=0,readonly=on,file=$biosPath"
[ -z "$noBios" ] && coreArgs+=" -drive if=pflash,format=raw,unit=0,readonly=on,file=$biosPath"
[ -n "$biosVars" ] && coreArgs+=" -drive if=pflash,format=raw,unit=1,file=$biosVars"
coreArgs+=" -serial mon:stdio" # Add a qemu serial device
coreArgs+=" -nodefaults" # Don't use any default devices