[SOLVED] E212 cant open file for writing. I have root access

slowerogue · 10-09-2012, 02:19 AM

Hi guys,
i was editing network interfaces

i have the root access

Code:

[root@xxx]# uid=0(root) gid=0(root) groups=0(root) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023

Code:

/etc/network/interfaces" E212: Can't open file for writing
Press ENTER or type command to continue

i cant save changes after i modified the file.
any help?
thanks!

update,
i was able to modify vi /etc/sysconfig/network-scripts/ifcfg-eth0

JaseP · 10-09-2012, 08:29 AM

Note: Just because you're root, doesn't mean you can do things that can't be done. For instance, if you have a file's permissions set for read only, you can't normally edit it without changing permissions to read/write. Also, lock-files may block access to a service, etc. Think of root as "super-user," with pervasive authority to change things in the system,... not a "God mode," omnipotent and able to change the rules of the system.

slowerogue · 10-09-2012, 08:48 PM

i see tqtq
so how do i change it to read/write permission? thx

ilesterg · 10-09-2012, 09:25 PM

Code:

ls -l filename

would display the permission. from the above scenario, we could expect something like -r--r--r-- (no w). You could add permissions by issuing the following command

Code:

sudo chmod u+w filename

slowerogue · 10-10-2012, 01:30 AM

thank you veli much!
bb