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chroot&grub
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| #from sda5 (/) to sdb1, MBR/BIOS - HP Microserver N40 | |
| newroot=/mnt/b1 | |
| mount /dev/sdb1 $newroot | |
| mount -o bind / /tmp/realroot | |
| cd /tmp/realroot | |
| rsync -a --exclude /tmp/realroot . $newroot/ | |
| #rsync -a -n --exclude /tmp/realroot . $newroot/ | |
| #sent 1,049,625 bytes received 122,278 bytes 260,422.89 bytes/sec | |
| #total size is 2,516,596,807 speedup is 2,147.44 (DRY RUN) | |
| mount -t proc /proc "$newroot/proc" | |
| mount --rbind /sys "$newroot/sys" | |
| mount --rbind /run "$newroot/run" | |
| mount --rbind /dev "$newroot/dev" | |
| chroot $newroot | |
| vi etc/fstab # set pass=0 for old /, pass=1 for new / | |
| grub-install /dev/sdb # intall Grub to MBR | |
| update-grub # make /boot/grub/grub.cfg | |
| exit | |
| umount -l $newroot/proc | |
| umount -l $newroot/sys | |
| umount -l $newroot/run | |
| umount -l $newroot/dev | |
| umount $newroot | |
| reboot | |
| # adjust boot device with F10 |
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