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genkernel unable to mount root on /dev/sda5
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skaman814
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Joined: 11 Nov 2017
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PostPosted: Sun Nov 12, 2017 8:35 pm    Post subject: genkernel unable to mount root on /dev/sda5 Reply with quote

Hi :D

After a lot of head scratching yesterday, today I decided I would try first using genkernel today.

Following the handbook, after using genkernel and all the other steps, I configured grub and rebooted. Grub loaded, I selected the kernel, and it appears to have successfully initialized the ram disk. The startup fails when it tries to mount root on /dev/sda5

my /etc/fstab:
Code:

/dev/sda2       /boot   ext2    defaults        0 2
/dev/sda3       none    swap    sw              0 0
/dev/sda4       /home   f2fs    noatime         0 1
/dev/sda5       /       f2fs    noatime         0 1


When I ran
Code:
find /lib/modules/4.12.12-gentoo/ -type f -iname '*.o' -or -iname '*.ko' | less

I didn't see any f2fs modules. I did see an ext2, so in /etc/conf.d/modules I have:
Code:
modules="ext2"


Thanks in advance for any suggested solutions or reference to any documentation that could be useful.

Also, I did just run
Code:
find /lib/modules/4.12.12-gentoo/ -type f -iname '*f2fs.o' -or -iname '*f2fs.ko' | less
to try and confirm it's not listed as a module.
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skaman814
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PostPosted: Sun Nov 12, 2017 8:39 pm    Post subject: Reply with quote

So, if I go to /usr/src/linux and run make menuconfig I notice f2fs isn't selected, is this an indication that genkernel didn't add it at all?
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NeddySeagoon
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PostPosted: Sun Nov 12, 2017 8:58 pm    Post subject: Reply with quote

skaman814,

Yes. Genkernel is not clever, it loads a preset .config file.

You will need to help genkernel with the -menuconfig option and build f2fs in.
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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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skaman814
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PostPosted: Sun Nov 12, 2017 9:05 pm    Post subject: Reply with quote

Awesome, thank you @NeddySeagoon :D
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