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Savoritias
n00b
Joined: 07 Oct 2013
Posts: 21
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 Posted: Sat Oct 12, 2013 2:40 pm Post subject: [SOLVED] Grub 2 refuses to install on /dev/sdb. |
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I have managed to emerge grub2 but now it says this when I try to isntall it:
| Code: | root@sysresccd /mnt/gentoo % grub2-install /dev/sdb
Path `/boot/grub2' is not readable by GRUB on boot. Installation is impossible. Aborting. |
Is this the fault of fstab?
Last edited by Savoritias on Sat Oct 12, 2013 3:47 pm; edited 1 time in total |
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Logicien
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Joined: 16 Sep 2005
Posts: 1555
Location: Montréal
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| Posted: Sat Oct 12, 2013 3:24 pm Post subject: |
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No, fstab is not in cause. You try to install Grub2 of the SystemRescueCD. Even if you are in the path of your Gentoo installation /mnt/gentoo, you are not in the chroot of it. So, you're not calling Grub2 of Gentoo but SystemRescueCD.
If you want to install Grub2 of your Gentoo installation, you must first mount the virtual filesystems needed if they are not, pass in chroot and then install Grub2 that you say it's already emerged
| Code: | mount -o bind /dev /mnt/gentoo/dev
mount -o bind /proc /mnt/gentoo/proc
mount -o bind /sys /mnt/gentoo/sys
HOME=/root SHELL=/bin/bash USER=root chroot /mnt/gentoo
grub2-install /dev/sdb
grub2-mkconfig -o /boot/grub/grub.cfg |
That's the way to install Grub2 for your Gentoo installation done in chroot. It should work with Grub2 for grub_platforms_pc .
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Paul
Last edited by Logicien on Sat Oct 12, 2013 4:23 pm; edited 6 times in total |
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creaker
l33t
Joined: 14 Jul 2012
Posts: 651
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| Posted: Sat Oct 12, 2013 3:25 pm Post subject: |
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Seems like you outside of chroot environment. Did you mount proc, sys, dev and ran chroot?
Oups, a bit late. |
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Savoritias
n00b
Joined: 07 Oct 2013
Posts: 21
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| Posted: Sat Oct 12, 2013 3:34 pm Post subject: |
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| it says that it is read only file system. How do I change the priviledges? |
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Logicien
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Joined: 16 Sep 2005
Posts: 1555
Location: Montréal
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| Posted: Sat Oct 12, 2013 3:41 pm Post subject: |
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If you're asking how to change the previleges of the root filesystem of you're Gentoo installation that I suppose is mounted in /mnt/gentoo you can do
| Code: | | mount -o remount,rw /mnt/gentoo |
If you have a boot partition it could be needed to remount it as rw too. Follow the handbook to be sure of what you're doing.
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Paul |
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Savoritias
n00b
Joined: 07 Oct 2013
Posts: 21
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| Posted: Sat Oct 12, 2013 3:47 pm Post subject: |
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| it worked thanks |
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Installing Gentoo
