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Don't create entries higher than Boot00FF

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Apparently Boot20## are sometimes reserved for firmware even if
they seem to be free. Boot00## is the normal place to be.
This commit is contained in:
Lauri Kenttä
2023-11-27 15:19:06 +02:00
parent 9ebe4e2476
commit 6b724d5590
1 changed files with 3 additions and 2 deletions
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src/Efi.cs
+3 -2
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@@ -403,10 +403,11 @@ public class Efi {
Setup.Log($"Read EFI variable: {bootOrder}"); Setup.Log($"Read EFI variable: {bootOrder}");
Setup.Log($"Read EFI variable: {bootCurrent}"); Setup.Log($"Read EFI variable: {bootCurrent}");
var bootOrderInts = new List<UInt16>(BytesToUInt16s(bootOrder.Data)); var bootOrderInts = new List<UInt16>(BytesToUInt16s(bootOrder.Data));
foreach (var num in BytesToUInt16s(bootCurrent.Data).Concat(bootOrderInts).Concat(Enumerable.Range(0, 0xffff).Select(i => (UInt16) i))) { foreach (var num in BytesToUInt16s(bootCurrent.Data).Concat(bootOrderInts).Concat(Enumerable.Range(0, 0xff).Select(i => (UInt16) i))) {
var entry = GetVariable(String.Format("Boot{0:X04}", num)); var entry = GetVariable(String.Format("Boot{0:X04}", num));
if (entry.Data == null) { if (entry.Data == null) {
if (ownEntry == null) { // Use only Boot0000 .. Boot00FF because some firmwares expect that.
if (ownEntry == null && num < 0x100) {
ownNum = num; ownNum = num;
ownEntry = entry; ownEntry = entry;
} }