SATA trouble when compiling kernel from source.

B4RR13N705 · 2009-08-30 04:35:17

Hi, im compiling 2.6.18 kernel, and i got this kernel panic:

VFS: Cannot open root device 'sda3' or unknown-block(0,0)
please append a correct 'root=' boot option.
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

Ive searched in google, and this seem to be a SATA support issue.
Ive activated this when compiling:

CONFIG_SCSI_SATA=m

And when generating kernel image i get:

[root@arch4linux ~]# mkinitcpio -k 2.6.18-OS -g /boot/kernel26-OS.img
:: Begin build
:: Parsing hook [base]
:: Parsing hook [udev]
:: Parsing hook [autodetect]
:: Parsing hook [pata]
:: Parsing hook [scsi]
:: Parsing hook [sata]
ERROR: module 'sd[-_]mod' not found

Whats left in kernel config?

djszapi · 2009-08-30 10:36:41

Hello B4RR13N705!

First of all, can you check your menu.lst is okay, and relevant to the /etc/fstab e.g. ?

tomk · 2009-08-30 11:27:53

Do you need to use an initramfs image with this kernel? The error you posted occurs when the initramfs image does not provide the support your system requires at boot -time.It will simplify things for you if you can do without the initramfs, as you can build everything you need into the kernel.

broch · 2009-09-01 02:25:48

CONFIG_SCSI_SATA=m

not good enough:
you need to have
CONFIG_BLK_DEV_SD=m
and
CONFIG_CHR_DEV_SG=m
and maybe (your hardware, may not need this but check mkinitcpio.conf)
CONFIG_SCSI_SATA_AHCI=m
at minimum

or set kernel without initrd as mentioned above but then these must be build in and also fs must be build-in

Arch Linux

#1 2009-08-30 04:35:17

SATA trouble when compiling kernel from source.

#2 2009-08-30 10:36:41

Re: SATA trouble when compiling kernel from source.

#3 2009-08-30 11:27:53

Re: SATA trouble when compiling kernel from source.

#4 2009-09-01 02:25:48

Re: SATA trouble when compiling kernel from source.

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