On Sat, Oct 28, 2017 at 02:31:36PM -0400, Gene Heskett wrote: > Greetings all; > > I've partitioned and formatted this 64GB SSD, copied everything from both > working partitions of a 2TB drive to it, filling it up to a whopping > 18%, edited the SSD's version of /etc/fstab to use the proper blkid's to > mount it including swap, and edited /boot/grub/device.map to point at > the /dev/disk/by-id description/identifier of the drive. And set the > first partitions boot flag. > > But pull the 2TB, and plug its cables into the SSD, and grub is not > loading. > > What did I miss? > When swapping boot devices, after I have done transferring the data and while it is still plugged in as a secondary device, I do the following:
- Mount the new device somewhere (like /mnt) - Mount the proc, devpts, and sysfs into /mnt - Chroot into /mnt - Run update-grub After that, I shut everything down, remove the original drive, put the replacement in as primary and everything works. I just went through this a couple of months ago to replace a failing drive in my laptop. Regards, -Roberto -- Roberto C. Sánchez