su command not found

Posted on 2000-03-16
Last Modified: 2012-06-22
Can someone tell me how to reinstall this, we ran fcsk on your disk the other day which seemed to be dieing now the system is really messed up and su command is not found so I can not gain root access, luckily I have ssh installed which lets me login as root.
Question by:tsingy

Expert Comment

ID: 2627595
Check your paths
whereis su
if that does not work
find / -name su

Expert Comment

ID: 2627695
don't you already have to be logged on as root to use the su command?..

Just a thought

Expert Comment

ID: 2628454
su should be in /bin and no, you don't need to root to be able to use it.

To answer your question, in most distro's su comes with the a package "sh-utils".

Since you apparantly crashed bad I dont't think su will be the only thing missing. BTW, what do you mean when you say that AFTER fsck'ing your system is really messed up? Did your fsck at boottime tell you to manual fsck some partition for a repair? What messages did you get from fsck? Did you look in the /lost+found directory for stray files?
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Expert Comment

ID: 2628557
su should be under /bin/su. You may have just lost your shell profile so try executing su by typing /bin/su

Expert Comment

ID: 2634651
I hope you didn't run fsck on your hard drive while while it was mounted.  If you did, you probably really screwed it up.  You should have gotten an error message if your file system was mounted.  If you did this, I recommend you make all attempts possible to back up data on your system.  You may need to enter single user mode through LILO to do this, therefore you will not need to su to root.  To enter single user mode at the LILO prompt enter "linux single" where "linux" is the name of your linux system to boot.

Expert Comment

ID: 2700646
tsingy: Any progress?

Accepted Solution

unixway52 earned 30 total points
ID: 2767592
Take a look under /lost+found as well. Sometimes
a whole directory entry (such as /bin) will
get moved to there as will be represented as the
original inode number. If you cd to that
directory it may still have the original files
listed normally under it ... you can then move them back to the original /bin.

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