e43f3d93b2
In the wild, we occasionally see valid ESPs where some file modification
times are 0. For instance:
├── [Dec 31 1979] EFI
│ ├── [Dec 31 1979] BOOT
│ │ ├── [Dec 31 1979] BOOTX64.EFI
│ │ └── [Dec 31 1979] fbx64.efi
│ └── [Jun 27 02:41] fedora
│ ├── [Dec 31 1979] BOOTX64.CSV
│ ├── [Dec 31 1979] fonts
│ ├── [Mar 14 03:35] fw
│ │ ├── [Mar 14 03:35] fwupd-359c1169-abd6-4a0d-8bce-e4d4713335c1.cap
│ │ ├── [Mar 14 03:34] fwupd-9d255c4b-2d88-4861-860d-7ee52ade9463.cap
│ │ └── [Mar 14 03:34] fwupd-b36438d8-9128-49d2-b280-487be02d948b.cap
│ ├── [Dec 31 1979] fwupdx64.efi
│ ├── [May 10 10:47] grub.cfg
│ ├── [Jun 3 12:38] grub.cfg.new.new
│ ├── [May 10 10:41] grub.cfg.old
│ ├── [Jun 27 02:41] grubenv
│ ├── [Dec 31 1979] grubx64.efi
│ ├── [Dec 31 1979] mmx64.efi
│ ├── [Dec 31 1979] shim.efi
│ ├── [Dec 31 1979] shimx64.efi
│ └── [Dec 31 1979] shimx64-fedora.efi
└── [Dec 31 1979] FSCK0000.REC
5 directories, 17 files
This causes grub-probe failure, which in turn causes grub-mkconfig
failure. They are valid filesystems that appear intact, and the Linux
FAT stack is able to mount and manipulate them without complaint.
The check for mtime of 0 has been present since
20def1a3c3952982395cd7c3ea7e78638527962b (fat: support file
modification times).
Signed-off-by: Robbie Harwood <rharwood@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. See the file MAINTAINERS for information about the GRUB maintainers, etc. If you found a security vulnerability in the GRUB please check the SECURITY file to get more information how to properly report this kind of bugs to the maintainers. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'