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PeterNL
n00b
Joined: 20 Feb 2018
Posts: 10
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 Posted: Tue Apr 10, 2018 12:42 pm Post subject: Grub2 problem |
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Hi,
I posted before on grub2. I restarted with this new subject, to solve my grub2 problem.
Partitions:
| Code: |
| DRIVE | PARTITION | FORMAT | MOUNT | OS |
|-------+-----------+---------+-------------------+-----------------|
| sda | sda1 | ext4 | / | Linux Mint Work |
| sda | sda2 | fat32 | The efi partition | |
|-------+-----------+---------+-------------------+-----------------|
| sdb | sdb1 | ext4 | / | Linux Mint Play |
|-------+-----------+---------+-------------------+-----------------|
| sdc | sdc1 | ntfs | | Windows 10 |
| sdc | sdc2 | fat32 | /boot/efi | |
| sdc | sdc3 | unknown | | |
| sdc | sdc4 | ntfs | | |
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What I did was booted from linux work (sda1) first. It doesn't boot anymore. So the same could be done from liveusb or linux play (chroot):
These are my preperations before diving into Gentoo. 
| Code: |
# mount linux mint Work.
sudo mount /dev/sda1 /mnt
# mounten efi partition created with gparted
sudo mount /dev/sda2 /mnt/boot/efi
# mounten grub stuff on root
sudo mount --bind /dev /mnt/dev &&
sudo mount --bind /dev/pts /mnt/dev/pts &&
sudo mount --bind /proc /mnt/proc &&
sudo mount --bind /sys /mnt/sys
modprobe efivars #, niet gedaan kreeg error op desktop 2tb linux
sudo chroot /mnt
# this made the error go away:"efibootmgr: skipping unreadable variable "Boot0000":input/output error"
mount -t efivarfs efivarfs /sys/firmware/efi/efivars/
grub-install --target=x86_64-efi --efi-directory=/boot/efi/ /dev/sda ##What to point to efi partition.
#grub-install --target=x86_64-efi-signed
#geeft error: doesn't look like efi partition.efi partition aanmaken en toevoeging: sudo mount /dev/sda2 /mnt/boot/efi
grub-install --recheck /dev/sda
#apt-get install --reinstall grub-efi-amd64
update-grub
#exit chroot
exit &&
#unmount grub folders
sudo umount /mnt/sys &&
sudo umount /mnt/proc &&
sudo umount /mnt/dev/pts &&
sudo umount /mnt/dev &&
#unmounten efi partittion:
sudo umount /mnt/boot/efi
#unmount linux
sudo umount /mnt
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The problem is that when choosing these options in uefi:
| Code: |
| Windows Boot Manager | sdc | Boots Windows | Working! |
| Grub Boot (P1:Samsung ssd 850) | sda | Still grub terminal | so Not Working |
| ubuntu (P1:Samsumg ssd 850) | sda | grub menu only few options not able to select sda | so Not working |
| ubuntu (p3:st2000) | sdb | just Boots linux play | working |
| P1:Samsung 850 | sda | nothing | so Not working |
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What do i have to do to have a bootable and complete grub menu on sda?
Preferebly the whole boot stage 1 & 2 on sda2,the fat32 efi partition.
And how to repare sda1, My linux mint work partition.
When this works i put my other ssd in. and install gentoo there. Then i replace the boot proces to this new drive, when i got the hang of this.
I would be really helped. Thank you. |
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TheUltimateNewbie
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Joined: 04 May 2018
Posts: 10
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Installing Gentoo
