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Bug 102900 - Boot process unable to open /root on S-ATA hardddisk
Summary: Boot process unable to open /root on S-ATA hardddisk
Status: RESOLVED INVALID
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Unspecified (show other bugs)
Hardware: x86 Linux
: High normal
Assignee: Gentoo Linux bug wranglers
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2005-08-17 14:36 UTC by Nes Yarug
Modified: 2005-08-17 15:05 UTC (History)
1 user (show)

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Package list:
Runtime testing required: ---

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Description Nes Yarug 2005-08-17 14:36:29 UTC 
Fresh stage 1 install via Gentoo Live CD with the following partition layout:

/dev/sda1 /boot
/dev/sda2 swap
/dev/sda3 /var
/dev/sda4 /

/dev/sdb1 /opt
/dev/sdb2 /usr
/dev/sdb3 /home

I.e. two S-ATA harddisks in non-RAID configuration.

Using GRUB, here is my grub.conf:

root (hd0,0)
kernel /kernel-2.6.12-gentoo-r9 root=/dev/sda4

This results in the following error when booting Linux (GRUB loads up okay):

VFS: Cannot open root device "sda4" 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)

Reproducible: Always
Steps to Reproduce:
1. Boot system
2. 
3.

Actual Results:  
System halts at "Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)".

Expected Results:  
Boot into Linux.
Comment 1 Nes Yarug 2005-08-17 15:05:22 UTC 
Doh!, I forgot to add generic SCSI support:

Device Drivers --->
SCSI device support --->
<*> SCSI disk support
<*> SCSI generic support

I already had this:
Device Drivers --->
SCSI device support --->
SCSI low-level drivers --->
[*] Serial ATA (SATA) support

Anyway, able to boot now. Marking this bug invalid.