FSTAB
 

Hi all,

I m using RHEL AS5, by mistake I deleted the fstab file and restarted the machine, and when I am trying to restore backup file in the single user mode it is not allowing me to do so.

#cp /etc/fstab.orig /etc/fstab

cp: can not create regular file 'etc/fstab'

when I gave command whoami it says command not found and when I tried su - it says seesion could not be opened.

can anyone help me please to avoid formatting.

Regards,


Balaji.

just try by giving the absolute path of the command..

first ensure, where are you using pwd
#pwd
/
Now remember that, command are separate executable files that present in directory specified by $PATH variable. So since $PATH variable in not in use in single user mode, specify absolute path of file.

Now ensure that / is mounted, by using 'mount' command.

suppose to execute cp command
write
/bin/cp /etc/fstab.org /etc/fstab

thnks

hi
 

Thanks Guys

I tried that also, it is not allowing me to write anything in any partition, it says read only file system, I wonder why it is saying session could not be opened when I give su -.

Also last time when I had deleted one line in fstab, just to check how single user mode works, it allowed me to restore the backup file.

try editing the grub and mount it as rw.may b it is some sort of unconventional way..i wont guarentee nything.try at ur own risk

Dear
try to remount to / in rw mode

mount -o rw,remount /

Now try /bin/cp

thnks

You need the remount option to remount / as read+write:

mount -o remount,rw /

did you try in rescue mode to recover the fstab file. and in rescue mode also chroot to /mnt/sysimage/. and then try to recover.

You could also just try booting into another OS and making your own fstab? Maybe a live CD could help?