I haven't messed with it in a while. I've got my boot partition on /dev/sda1 (my initrd is at /efi/EFI/Slackware/initrd.gz and a copy of the 3.10.17 kernel is there as well) and an lvm for /dev/sda2 with a couple volumes. my root is /dev/system/slackware on it. I need to create a boot entry using efibootmgr and I can't for the life of me remember how it goes. I remember it being a giant pain in the butt. Can't remember if I need to point to the partition and there were backslashes and single quotes and all sorts of things. Can anyone help me out?

I've never created a boot entry using the efi bootmgr.

I think the initrd is to boot the system which attempts to mount /sysroot and then look for the fstab.

http://linux.die.net/man/8/efibootmgr

Here's another way:-
-:-To create an EFI boot entry, a couple of arguments are passed to efibootmgr-:-
http://wiki.gentoo.org/wiki/Efibootm...g_a_boot_entry

Hope that helps.

Here's a sample to set up a new entry on partition 1 of /dev/sda
Very helpful link with lots of details here --> http://www.rodsbooks.com/efi-bootloa...tallation.html

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I have to add -u to point to the root in the lvm and the initrd. I've tried a bunch of different things. it's something like

efibootmgr -c -L "Slackware " -l (the kernel path) -u "root=(my root path) initrd=(my initrd path)"

The backslashes and quotes and exact syntax are what get me. I've tried a bunch of different combinations and everything to no avail. every distro seems to have a different method and there's no real Slackware advice available anywhere which seems weird. I had it written down but I lost the notebook I had it in. -d and -p are redundant since my system falls under the program's defaults.

edit: also not sure if there's some way I need to declare which partition my lvm is on for the root. if I select the boot entry my screen flashes black and goes right back to my boot menu so I can only imagine I have the kernel part wrong.

Me too, that stuff is annoying till you get it just right.

Maybe download efi bootmgr from Slackbuilds and let it do the work.
http://slackbuilds.org/repository/14...em/efibootmgr/

I'll look around in the Forums and dig around in the Slackware Documentation.
If i find anything I'll post it for you.

thanks for the thought but...

edit: in case this helps anyone down the road, the actual command was:

efibootmgr -c -L "Slackware" -l '\EFI\Slackware\vmlinuz-generic-3.10.17' -u "root=/dev/system/slackware initrd=/EFI/Slackware/initrd.gz"

no need to put the mount point and back-slashes only go where you point to the kernel. all the ascii stuff is regular ol' slashes.

Your Welcome.