append a correct "root=" boot option. Kernel panic, can not find sda1 device

[fang zhengshu]

the attach of the last email is the movie of booting l4linux through serial
+hardisk
and I put an attach which is the picture of the error.
any one can help me?
thank you.



2009/12/24 fang zhengshu <fangzhsh07 at gmail.com>

> hi all,
> I download the newest l4linux by using svn and use the x86-native_defconfig
> to configure the l4linux
> then modify some place:
> process and the keyboard,vga
>
> then I can boot l4linux with the given drops-rd.rd through serial.
> but when I use the same l4linux kernel to boot it on the national hardisk
> throug serial.
> I came across the following problem:
>
> Please append a correct "root=" boot option. Kernel panic - not syncing:
> VFS: Unable to mount root fs on unknown-block(2,0)
>

I have enable the sata disk support!

> I have following someone's step as the google:
>
> http://www.linuxquestions.org/questions/linux-kernel-70/kernel-panic-not-syncing-vfs-unable-to-mount-root-fs-on-unknown-block20-688150/
> ...
> but the error still exist!
>
> I do the things in vmware.
> the menu.lst is:
>
> title l4linux26+serial
> #my hardisk is /dev/sda1
> root (hd0,0)
> kernel /boot/l4linux/bootstrap -serial -modaddr 0x02000000
> module /boot/l4linux/fiasco -nowait -nokdb -serial_esc \
> -comspeed 115200 -comport 1
> module /boot/l4linux/sigma0
> module /boot/l4linux/roottask task modname "bmodfs" attached 4 modules
> module /boot/l4linux/names
> module /boot/l4linux/log
> module /boot/l4linux/dm_phys --isa=0x00800000
> module /boot/l4linux/simple_ts -t 300
> module /boot/l4linux/rtc
> module /boot/l4linux/l4io
> module /boot/l4linux/bmodfs
> module /boot/l4linux/libld-l4.s.so
> module /boot/l4linux/libloader.s.so
> module /boot/l4linux/vmlinuzserial
> module /boot/l4linux/l4linuxserial.cfg
> module /boot/l4linux/loader --fprov=BMODFS l4linuxserial.cfg
>
>
> the l4linuxserial.cfg is:
>
> modpath "(hd0,0)/boot/L4Linux"
> task "vmlinuz" "earlyprintk=yes console=ttyLv0 init=/bin/sh mem=256M
> l4ser.vkey_enable=1 root=/dev/sda1 ide_generic.probe_mask=0x3f"
> all_sects_writable
> allow_vga
>
>
> thank you!
>  --
> fang,
>
>



-- 
fang,
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