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Pvt.Penguin
n00b
Joined: 25 Feb 2020
Posts: 2
Location: Asia
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 Posted: Thu Feb 27, 2020 10:02 pm Post subject: [SOLVED]Unable to mount root fs on unknown block (8,4) |
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Hello Gentoo community!
Trying to install Gentoo,I am a Linux novice.Trying to install Gentoo amd86_64 on Oracle Virtual Box.
1.The fs partition was according to Gentoo handbook and which I implemented,
| Code: | Number || Partition || File system || Name || Flags
1 || /dev/sda1 || || grub || bios_grub
2 || /dev/sda2 || ext2 || boot || boot,efi
3 || /dev/sda3 || (swap) || swap ||
4 || /dev/sda4 || ext4 || rootfs || |
|| is used for partitoning columns.
2.My fstab file,
| Code: | /dev/sda2 /boot ext2 defaults 0 2
/dev/sda3 none swap defaults 0 1
/dev/sda4 /root ext4 defaults 0 2 |
3.Used genkernel to configure and compile kernel.
4.generated initramfs and img
5. | Code: | | /echo 'GRUB_PLATFORMS="efi-64"' >> /etc/portage/make.conf |
| Code: | | emerge --ask sys-boot/grub:2 |
error:too many circular dependencies.
Tried to find a solution but this being my 4th attempt to install Gentoo felt a little lazy and went with LILO instead.
6. /etc/lilo.conf
| Code: | boot=/dev/sda
prompt
timeout=50
default=gentoo
compact
image=/boot/vmlinuz-4.9.16-gentoo #used the generated img here.
label=gentoo
read-only
root=/dev/sda4 |
6.exit the chroot environment and rebooted.
Presses F12 and LILO was working,as set in lilo.conf had only one option-->gentoo
7.Boot check successful but after some time I get the message below,
Unable to mount root fs on unknown block (8,4)
Where did I make a mistake?
Is there anyway to repair this or will I have to start again?
Any form of help,advice,criticism is welcome!
Thanks in advance,
Pvt.Penguin
Added a few code tags -- NeddySeagoon
_________________
You tried,you failed,
Lesson is,never try!
Last edited by Pvt.Penguin on Fri Feb 28, 2020 1:16 pm; edited 1 time in total |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54300
Location: 56N 3W
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| Posted: Thu Feb 27, 2020 10:19 pm Post subject: |
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Pvt.Penguin,
Welcome to gentoo.
| Quote: | 3.Used genkernel to configure and compile kernel.
4.generated initramfs and img |
So far, so good. You have a kernel that requires an initrd to boot, but its not loaded by your /etc/lilo.conf.
As there is no initrd, the kernel modules required to mount the real root filesystem are missing.
Hence the | Code: | | Unable to mount root fs on unknown block (8,4) |
The (8,4) means /dev/sda4
Your lilo.conf is missing an initrd= ... line.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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Pvt.Penguin
n00b
Joined: 25 Feb 2020
Posts: 2
Location: Asia
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| Posted: Fri Feb 28, 2020 1:17 pm Post subject: |
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Greetings!
Thanks NeddySeagoon!That solved the problem.
_________________
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Lesson is,never try! |
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Installing Gentoo
