I am presuming you mean "Are you sure this not a hardware issue?" I am sure it is not, for two reasons. 1) If it were a hardware issue I would still expect the two device nodes (whole disk and partition) to report the *same* data. 2) I have since developed a workaround involving BLKFLSDEV. The workaround is really ugly. On Sat, Aug 26, 2023 at 6:03 PM Bagas Sanjaya <bagasdotme@xxxxxxxxx> wrote: > > On Sat, Aug 26, 2023 at 02:59:45PM -0700, Joshua Hudson wrote: > > uname -a > > Linux nova 6.4.12 #1 SMP PREEMPT_DYNAMIC Sat Aug 26 09:11:27 PDT 2023 > > x86_64 GNU/Linux > > > > Kernel source is > > https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/linux-6.4.12.tar.xz > > > > Can reliably reproduce as follows: > > > > # hexedit /dev/sda1 (this is my EFI partition) > > PgDn > > # hexedit /dev/sda > > G 100000 (your value may vary--we want to seek to the start of the > > EFI partition) > > PgDn > > PgDn > > ^C > > write a marker to the padding between the BPB and the first FAT sector. > > (If your system doesn't have one, edit an error message in the boot sector) > > ^X > > # hexedit /dev/sda1 > > PgDn > > Look for marker written above, find it's not there !!! > > ^C > > > > I discovered this one trying to defragment my EFI partition after a > > grub upgrade left it very fragmented due to replacing logos. > > Are you sure this is hardware issue? > > -- > An old man doll... just what I always wanted! - Clara
