On 2020-06-27 21:50, Greg Thomas wrote: > Hey folks, I'm trying to avoid buggin y'all, but I'm down to my last two > tasks, setting up dual boot with Windows 10 and setting up OpenVPN. I'm > currently trying to troubleshoot "Loading.... ERR M" while using Windows > BCD. I can boot no problem when selecting my boot drive while starting up > my Thinkpad X220. > > I installed a couple of weeks ago using pretty much all defaults. ... > nihilanon# fdisk sd0 > Disk: sd0 geometry: 121601/255/63 [1953525168 Sectors] > Offset: 0 Signature: 0xAA55 > Starting Ending LBA Info: > #: id C H S - C H S [ start: size ] > ------------------------------------------------------------------------------- > 0: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused > 1: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused > 2: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused > *3: A6 0 1 2 - 121600 254 63 [ 64: 1953520001 ] OpenBSD
I'm not seeing a windows partition here. And it appears your OpenBSD partition is using the entire disk. Oh. Your computer has three disks in it...your Windows install is on a second/third disk? I don't think that is going to work. from your dmesg: sd0 at scsibus1 targ 0 lun 0: <ATA, ST1000LM049-2GH1, SDM2> naa.5000c500b98a130c sd0: 953869MB, 512 bytes/sector, 1953525168 sectors, thin sd1 at scsibus1 targ 1 lun 0: <ATA, M4-CT512M4SSD2, 040H> naa.500a07510369b769 sd1: 488386MB, 512 bytes/sector, 1000215216 sectors, thin sd2 at scsibus1 targ 2 lun 0: <ATA, SAMSUNG SSD PM85, EXT4> naa.5002538844584d30 sd2: 244198MB, 512 bytes/sector, 500118192 sectors, thin ERR M basically means that biosboot(8), which is "tagged" with the physical location of /boot(8) on the disk, doesn't see the marker that indicates that what it is pointing at is actually /boot. The windows 10 boot loader is pulling from a disk other than sd0, the pbr is pointing at something "correct" if it were sd0, but the Windows boot loader is trying to pull it from whatever the new default disk is. Maybe. There may be some bcdedit magic that can say "boot from this other disk" which might solve your problem, but I have no idea. A lame way of doing this might be to shrink your Windows partition by 1G, and install your OpenBSD root partition there, and the rest on sd0. Nick.
