To Grub Or Not And It's A Lonely World (Apparently)

[Forest Fire]

Hi, new user here.

 

I am installing Funtoo on an otherwise empty 1 TB drive, sdb. The other drive,  sda, boots PC-BSD via grub. Both drives have GPT partition tables and the system boots with UEFI. Sda is a 250 GB SSD and is full. The Funtoo installation will take up about 200 GB on sdb, a conventional drive.

 

Despite a whole lot of Googling, I cannot determine the best practice in this instance. Do I install grub in the second (sdb) drive as part of the Funtoo install, or do I skip that step when I get to it and simply update grub on sda only.  

 

Second question. I got this after doing emerge --depclean following the first emerge operation in the installation process.

!!! You have no world file.

I went no further. Do I have a problem here?

 

Thank you.

 

 

[666threesixes666]

just update the grub on sda.  --depclean isn't required to install?  if you emerge anything with out the -1 or --oneshot it will generate a world file.

[Forest Fire]

OK, thanks. I will continue the installation once I get a chance.  If all goes well, I will mark this solved.

 

[cowa]

Welcome :) 

[Forest Fire]

Well, updating grub on sda did not work. It could not find Funtoo.  I didn't have the patience to dig into PCBSD's grub configuration, so I proceeded to install grub on Funtoo's drive, which resulted in changing the bios settings on my desktop. :angry:  The machine now boots into Funtoo, but there is no entry for PCBSD. Apparently, there is a lot I don't know about UEFI bioses and booting. 

 

I found the setting in the bios that controls which drive is used for booting. The Funtoo installation had changed it. I changed it back to sda and PCBSD booted OK, but still no joy on booting Funtoo from the sda grub menu.

 

During my searching, I discovered that UEFI bioses usually allow boot drive selection via the F11 or F12 function key. Mine does not. That may be due to the fact that is an industrial system versus a desktop oriented box. To change the boot drive, I have to go into the bios and change a setting. 

 

So, I have two options. I can see about having Funtoo control the grub boot menu for all OSes, or beat my head against the wall trying to figure out why PCBSD's boot menu isn't working properly. I will probably do the former. Fortunately, that PCBSD installation isn't all that critical at the moment.

 

I will leave this unsolved for now.

 

 

[stac80]

I don't have a lot of experience dual booting with Funtoo nonetheless I'm going to suggest that you add an entry for PC-BSD in your /etc/boot.conf and run boot-update. That should create an entry for PC-BSD in your Funtoo managed Grub menu. The specifics of what to add to boot.conf, to get PC-BSD booting, I am unsure of. Perhaps someone else can chime in?

[Forest Fire]

Grub is capable of auto detecting OSes, so it may not be an issue from the Funtoo side. I need to get the rest of Funtoo installed before I go any further, though.

[whiteghost]

Grub is capable of auto detecting OSes, so it may not be an issue from the Funtoo side. I need to get the rest of Funtoo installed before I go any further, though.

not quite. look at

$man boot.conf

 

here is mine for an example

 

 $ cat /etc/boot.conf

boot {

generate grub

default "Funtoo Linux" 

timeout 3 

}

 

"Funtoo Linux" {

kernel kernel-xfce

initrd initramfs-xfce

params real_root=/dev/sda2

params += video=800x600

}

 

"Funtoo Linux g3" {

kernel kernel-deb

initrd initramfs-deb

params real_root=/dev/sda3

        params += video=800x600 

} 

 

"Funtoo Linux better-initramfs" {

kernel vmlinuz[-v]

initrd /initramfs.cpio.gz

}

"Windows 7" {

type win7

params root=/dev/sdc1

}

 

"kde" {

       kernel kernel-kde

       initrd initramfs-kde

       params real_root=/dev/sdd1        

       params += rootfstype=ext4

       params += video=800x600

}