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

fang zhengshu fangzhsh07 at gmail.com
Thu Dec 24 10:08:43 CET 2009


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

> 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.
>
sorry not for put the attach!

> 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,
>



-- 
fang,
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