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fix: Hide long mode from 32-bit Windows guests (#2178)

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Kroese
2026-08-22 00:07:19 +02:00
committed by GitHub
parent afa55b476c
commit 2fe4645685
4 changed files with 73 additions and 54 deletions
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src/legacy.sh
+5 -2
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@@ -87,12 +87,15 @@ setMachine() {
case "${id,,}" in
"win9"* | "winnt4" | "win2k"* | *"x86"* | "reactos" )
"win9"* | "winnt4" | "win2k"* | *"x86"* )
# Legacy 32-bit Windows may enter an incompatible PAE/DEP path when the
# NX flag is exposed, causing installation failures or repeated resets.
#
# Long mode is unusable by 32-bit guests and may cause the firmware to
# allocate PCI resources above 4 GB, which older systems may not handle.
writeState "flag" "nx=off" || return 1 ;;
writeState "flag" "nx=off,lm=off" || return 1 ;;
esac