Serial log during boot, this is from the boot_loader:

Error: Invalid package file: Total size in header (45501579) doesn't agree with total file size (45462774)
../src/system/boot/loader/file_systems/packagefs/packagefs.cpp:849: Bad data

Investigating the haiku.hpkg file in Linux:

leavengood@dragon /m/l/D/h/src> ls -la ../generated.x86_64/objects/haiku/x86_64/packaging/packages/haiku.hpkg
-rw-r--r-- 1 leavengood leavengood 45501579 Aug 13 01:03 ../generated.x86_64/objects/haiku/x86_64/packaging/packages/haiku.hpkg
leavengood@dragon /m/l/D/h/src> xxd -l 30 ../generated.x86_64/objects/haiku/x86_64/packaging/packages/haiku.hpkg
00000000: 6870 6b67 0050 0002 0000 0000 02b6 4c8b  hpkg.P........L.
00000010: 0000 0001 0001 0000 0000 0000 02b6       ..............
leavengood@dragon /m/l/D/h/src> irb
irb(main):001:0> 0x2b64c8b
=> 45501579
irb(main):002:0>

File is 45501579 bytes, header says 45501579 bytes, but Haiku (or the package kit code in the boot loader at least)
thinks it should be 45462774 bytes, which is 38805 bytes shorter.

I begin to wonder if my SSD is going bad...