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-rw-r--r--dev/boot/BootKit/BootKit.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/dev/boot/BootKit/BootKit.h b/dev/boot/BootKit/BootKit.h
index 2bf95696..03902363 100644
--- a/dev/boot/BootKit/BootKit.h
+++ b/dev/boot/BootKit/BootKit.h
@@ -297,7 +297,7 @@ inline Boolean BDiskFormatFactory<BootDev>::Format(const Char* part_name) {
epm_boot.FsVersion = kNeFSVersionInteger;
epm_boot.LbaStart = kNeFSRootCatalogStartAddress;
- epm_boot.LbaEnd = fDiskDev.GetDiskSize();
+ epm_boot.LbaEnd = fDiskDev.GetDiskSize() - 1;
epm_boot.SectorSz = BootDev::kSectorSize;
epm_boot.Kind = kEPMNeKernel;
epm_boot.NumBlocks = 1;