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Re: to allow root logins or not?



On Sat, Apr 21, 2007 at 09:19:20AM -0700, John Jason Jordan wrote:
> On Sat, 21 Apr 2007 17:18:49 +0300
> Linas Žvirblis <0x0007@gmail.com> dijo:
> 
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> > 
> > Douglas Allan Tutty wrote:
> > 
> > > If something happens during boot and you want to boot single, /home
> > > isn't mounted and only root is allowed to log in.  If there is no root
> > > user, how does this happen?
> > 
> > This one is a nasty surprise. You will be given a root prompt _without_
> > being asked for password. This looks more like a bug, rather than a
> > feature, to me.
> 
> Happened to me the other day on a new Ubuntu Feisty install. I booted
> to "recovery mode" and there I was, at a command line prompt as root.
> No login required.

If you are using grub you can edit the current boot line add in init=/bin/bash,
this will by pass all the login/security stuff, do what you want to fix stuff
and then reboot.

> 
> As it turns out, this time it was a good thing. What I needed to fix
> was a broken login caused by an overfull hard disk that was set up as
> RAID 1. Live CDs couldn't grok the partitions and I was grasping at any
> way I could figure out to get access so I could make some room on the
> disk. But most of the time this is probably not a good thing. I wonder
> if there is a way to change it. On the other hand, the Feisty machine
> had the Desktop version of Feisty, not the Server version. Maybe the
> server version won't do this. I'm less familiar with Etch, so I don't
> know how much of this applies to Etch as well.
> 
> 
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