all userid cannot login incuding root

vvcat · 03-11-2008, 04:23 AM

Hi all,

I have using Fedora 8 and running pwconv, after that, all user including root cannot login, please help.

I use console root login but also failure.

p.s. I have backup the /etc/shadow to /etc/shadow.bk

gilead · 03-11-2008, 04:40 AM

The short answer would be to copy /etc/shadow.bk to /etc/shadow, check the permissions/ownership and see if that fixes the problem.

How did you use pwconv and what errors are you getting at the moment when you try to login?

vvcat · 03-11-2008, 04:42 AM

when I run pwconv, it generate /etc/shadow

I will mv bk file to /etc/shadow If I can use root login, the problem is now when I use root login, it shown password failure!

jschiwal · 03-11-2008, 04:43 AM

Fedora 8 is already setup to use shadow passwords. You have no reason to use pwconv. Restoring your old /etc/passwd and /etc/shadow files should fix the problem. It's likely only the /etc/shadow file needs fixing.

gilead · 03-11-2008, 04:48 AM

Do you have a rescue CD or DVD that you can use to boot with? Once you do that, you can mount your hard disks and restore the shadow files.

vvcat · 03-11-2008, 04:51 AM

Dear gilead,

Rescure disk means setup disk which I setup to Fedora8?

gilead · 03-11-2008, 05:03 AM

You should be able to use it. I haven't used Fedora for a long time so I don't remember what it contains. Try booting your box with it and then use the mount command to mount your root partition under (for example) /mnt/harddisk. Then use your favourite text editor to remove root's password from /mnt/harddisk/etc/shadow