On Sat, Mar 02, 2019 at 11:15:03PM +0100, k...@aspodata.se wrote: > hendrik: > > Currently booting from a 750G BIOS-partitioned disk. > > Trying to enable booting from the 4.7T drive, which is GPT partitioned. > > > > With grub-install I get errors: > > > > april:/farhome/hendrik# grub-install /dev/sda > > Installing for i386-pc platform. > > grub-install: warning: this GPT partition label contains no BIOS Boot > > Partition; embedding won't be possible. > > grub-install: error: embedding is not possible, but this is required for > > RAID and LVM install. > > april:/farhome/hendrik# > > > > Evidently there is some kind of incompatibility here. > > > > What is going on? What can I to do other than continuing to boot from > > small BIOS disks? > > I have: > > # file -s /dev/sda > /dev/sda: DOS/MBR boot sector, LInux i386 boot LOader; partition 1 : ID=0xee, > start-CHS (0x0,0,1), end-CHS (0x3ff,254,63), startsector 1, 4294967295 sectors > # fdisk -l /dev/sda > Disk /dev/sda: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors > Disk model: TOSHIBA MG03ACA3 > 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: 7A22F348-BA09-4E8C-9EE5-D2534E719D7C > > Device Start End Sectors Size Type > /dev/sda1 2048 194559 192512 94M Linux RAID > /dev/sda2 194560 1953791 1759232 859M Linux RAID > /dev/sda3 1953792 19531775 17577984 8.4G Linux RAID > /dev/sda4 19531776 117186559 97654784 46.6G Linux RAID > /dev/sda5 117186560 136718335 19531776 9.3G Linux RAID > /dev/sda6 136718336 1953124351 1816406016 866.1G Linux RAID > /dev/sda7 1953124352 5860532223 3907407872 1.8T Linux RAID > # > > Using lilo and mdraid mirrored partitions, no problems at all. > I always use a small /boot partition first, no initrd, self compiled > kernel.
Interesting. I used to have lilo boot from a floppy, as an alternative in case the complicated grub ever failed. But lilo hasn't worked for me lately -- it turns out the problem was hardware -- over the years the floppy disk's magnetic oxides had completely worn off. It was *transparent*! Or at least. transparent where the boot track used to be. I'll get a new floppy disk before I mess with grub. I hope hthe floppy drive's heads aren't also worn down of clotted wit oxide. This does bring up another problem that I've wondered about. Why is my floppy drive always turning when there's a disk in? I'll investigate later. Right now I have enough to do. I'll just make sure I don't keep the disk peranently in the drive. I vaguely remember that it may have started about two years ago when I moved house, so it may also be a hardware problem. Loosened cable, maybe? My USB ports stopped working around the same time. > > Hope this helps you. It might. It reminded me. -- hendrik _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
