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You might have a look at your partition layout: fdisk -l /dev/sda Also, your UEFI motherboard could be booting in legacy BIOS mode. A couple of months back, I had to re-arrange a borked Debian install. This is a 4 TB Western Digital Black drive on a UEFI motherboard: [0:root@TUX ~]$ fdisk -l /dev/sda Disk /dev/sda: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: gpt Disk identifier: 170B3F1A-BFD5-4785-B5E8-803B2B036244 Device Start End Sectors Size Type /dev/sda1 2048 6143 4096 2M BIOS boot /dev/sda2 6144 67115007 67108864 32G Linux swap /dev/sda3 67115008 68114432 999425 488M Microsoft basic data /dev/sda4 68116480 7812083341 7743966862 3.6T Linux RAID /dev/sda5 7812083712 7814037134 1953423 953.8M Linux filesystem I don't remember why I had to define /dev/sda3. I think Debian insisted on it. If the disk doesn't use EFI, you need the 'BIOS boot' partition. It only has to be 1 MB (maybe less) but this was my first time doing this and I wanted to be sure I didn't have to re-arrange partitions again. Lots of copying files and waiting, waiting, waiting. Breaking mirrors and re-syncing them. Lots of fun. If you are using it as an EFI disk, you need a different partition other than the 'BIOS boot' but don't rememer what it is. HTH, Bill On 6/27/2017 9:35 PM, William Mattison
wrote:
(replying to all three messages) When I boot, the bios display says it is UEFI. Am I mis-understanding what that means? Am I mis-using the term? My /boot directory has only two sub-directories: "grub" and "grub2", no sub-directory "efi". Each of the two sub-directories has a file called "grub.cfg". The two files are identical, except for permissions. In /etc/fstab, the UUIDs are already correct, based on output by both the blkid command and the lsblk command (which blkid's man page says I really should use instead). I tried the grub2-mkconfig command in both sub-directories. Then I rebooted. The new menu has Fedora, other Fedora options, Windows 7 (on /dev/sda1), and Windows 7 (on /dev/sda2). Each option appears to boot up correctly, though I did not attempt to actually log in to a windows account. Why are there two menu entries for windows? On this system, sda1 is the master boot record, sda2 is the windows partition. After signing in to Fedora, I get a crash message saying vmlinuz crashed. I couldn't catch the whole message. Yet the system does seem to work. What's going on? thanks, Bill. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx |
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