hi !
Yesterday i made a mistake by using command
crle -l /usr/local/lib which changed my all settings and no command was working even ls was not working. Between this process i execute some command n system hang up n i had no option but to restart it n after that i got msg which continusly moving from up to down
Warning:init(1m) existed on fatal signal 9: restarting automatically
Then i tried to boot it from cdrom and use following commands

boot cdrom -s
mount /dev/dsk/c0t0d0s0 /a
crle -l /usr/lib
rm /var/ld/ld.config
rm /var/ld/64/ld/config

n reboot it but problem was there then i tried
boot cdrom -s

crle -l /lib:/usr/lib:/usr/local/lib
n also tried command after boot cdrom -s
export LD_LIBRARY_PATH=/lib:/usr/lib

but problme is still there.
How can i recover my system with original settings.

You made a second mistake by running other commands and rebooting.

Now, the third mistake is you are setting the linker path on the miniroot instead of your main disk.

Try copying /var/ld/ld.config to /a/var/ld/ld.config

I did
boot cdrom -s
cp /var/ld/ld.config to /a/var/ld/ld.config

error
cp: cannot access /var/ld/ld.config

You need to create a /var/ld/ld.config file first.

wat should i do next ?

i created file in /var/ld/ld.config and then tried to cp it to /a/var/ld/ld.config
i gave me error
cp: cannot create /a/var/ld/ld.config No such file or directory.
n i tried to the following
touch /a/var/ld/ld.config
error: cannot create

You need to remount your partition in read-write mode.

wat command will be used ?
mount -o rw not working .

try: mount -o remount,rw

hi !
i tried
mount -o remount,rw

it gave me some different usage options like mount [-v][-p]

try:

mount -F ufs -o remount /dev/dsk/c0d0p0s0 /a
mount: /dev/dsk/c0d0p0s0 or /a, no such file or dirctory.

Sure, there was a typo, it's c0t0p0s0.

same error .
can u define me wat this command do ?

Hmmm, another typo, but you should have found this by yourself, as in fact it is a command you already entered in your first post.

What it does is mounting the device given as first argument to a directory given as second argument.