-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello,
I've been having a rather strange problem with GRUB, one that I have been encountering for a while. For some reason, GRUB cannot read partitioned FAT file systems on my, as well as others', USB drives. This occurs on all GRUB releases I have tried, including the development version through git. I have a standalone GRUB for EFI image that I generated with the grub-mkimage tool as follows. Notice that I have included the FAT module as part as PART_FAT: ../grub-mkimage -d . --format x86_64-efi --config '/home/username/Desktop/grub.cfg' -o ~/Desktop/boot.efi boot linux ext2 normal configfile lspci ls loadenv help echo fat exfat multiboot multiboot2 terminal sleep loopback normal fixvideo iso9660 loadbios When I boot into GRUB and go into the normal prompt, trying to list list devices works, as I'll type verbatim here: grub> ls (hd0) (hd1) (cd0) Typing the following should work, but doesn't. grub> ls (hd0)/ error: unknown filesystem. I know that (hd0) is the identifier for my USB drive, because the access indicator light flashes while that operation is being performed. Now, if I format the USB drive to have a FAT filesystem but no partitions, the operation works. For instance, this command: sudo mkfs.vfat -I /dev/sdX -n LINUX produces a drive that functions as expected. This has happened not just to me, but to others that are using my compiled GRUB image as well. So I don't know if this is an issue with GRUB or something that I'm doing wrong. I've made dumb mistakes before, so this is a possibility. Any ideas any one has would be appreciated. - -- SevenBits -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSpL6NAAoJEFbRvtGxmFPEFEMIAMEgXSJldLiy2ljTytVfKeUE 2pQAMxEIGboYEzzhu2UX4znQmn0CI6vsutb4buDjxy5Z2aBS6AB7JL5BqpR0yK/I WKOElwbG0HYB1D3KEcXetLXS/1z4/OQIqw7Vme5zcqrLjLF8YqNSR3EAhASkDR3o x5SEneGSVDEvSsiUxfFaMkfO6LyZlbs0oDQMnO9bkBsfig3F/sqjug7gNbcN6LJY tvher2r3SE22kF6mNfjoiEPPuyVJ5UfMamrMOT4A0T2w2ohCH5LUf5bnrZ3/WAti h1knsei/P5hQ2SGQ1If/O2nvOTfXh27m4N/5XTgecsDYuMdEJbtpe8CwVX9tifE= =sKnK -----END PGP SIGNATURE----- _______________________________________________ Help-grub mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-grub
