Felix Miata <mrma...@earthlink.net> writes: > Save yourself many keystrokes by using the symlinks in the root directory > instead > of the long-winded full version-named /boot/vmlinuz-4.19.0-5-686-pae....
This is wonderful to know and in the root or / directory of this disk, there is initrd.img, initrd.img.old, vmlinuz and vmlinuz.old Those all point to valid targets. I presently have the no-boot disk mounted on a working linux system where it's root directory is /dev/sde1 and the current links plus the old links are as follows: lrwxrwxrwx 1 root root 32 Jun 26 2019 initrd.img -> boot/initrd.img-4.19.0-5-686-pae lrwxrwxrwx 1 root root 31 Jun 26 2019 initrd.img.old -> boot/initrd.img-4.9.0-9-686-pae lrwxrwxrwx 1 root root 29 Jun 26 2019 vmlinuz -> boot/vmlinuz-4.19.0-5-686-pae lrwxrwxrwx 1 root root 28 Jun 26 2019 vmlinuz.old -> boot/vmlinuz-4.9.0-9-686-pae I finally have found something that may be a clue to what's actually wrong. While trying to manually make that drive boot, I got this: grub rescue> set prefix=(hd0,1)//boot/grub grub rescue> insmodnormal Unknown command `insmodnormal'. That was a good old syntax error so I tried insmod normal with a space grub rescue> insmod normal error: symbol `grub_calloc' not found. I'm pretty sure that shouldn't happen at all and is what's behind the failure to boot. I haven't found any uuid's that are different although I first thought I had as I looked at some links which had uuid's but they were good when I looked at the actual partition. It's easy to go down a rabbit hole if one doesn't watch out. I think there may be something about grub that got left out or changed during the upgrade. Martin Martin