Help - system boot failure

[psycho]

Hi.
I use command

dhclient re0

for connecting to Internet.
I wanted to speed up whole process by adding this line of code to /etc/rc.conf because I thought it would done it automatically on booting.
Now I have infinite loop, because the steps of "dhclient re0" are repeating and boot can't continue.

 

[SirDice]

How did you add it?

It should be this:

ifconfig_re0="DHCP"

 

[fender0107401]

try single user model and edit rc.conf

 

[psycho]

@ fender0107401: tnx I'll try that.
@SirDice: no I just added command

dhclient re0

to /etc/rc.conf

 

[DutchDaemon]

/etc/rc.conf is not a simple shell script! You really need to put

ifconfig_re0="DHCP"

in there, as suggested.

 

[SirDice]

@SirDice: no I just added command

dhclient re0

to /etc/rc.conf

Don't ever do that again

/etc/rc.conf should contain various variables to set options, it should not contain commands.

 

[psycho]

well now I know.

Ok I tryed Single User Mode and I have succesfully booted into the system but edit/pico commands don't work and when I was shutting down system, it tried to write some Log file, and then error occured with msg that this is Read-only mode

 

[SirDice]

well now I know.

Ok I tryed Single User Mode and I have succesfully booted into the system but edit/pico commands don't work and when I was shutting down system, it tried to write some Log file, and then error occured with msg that this is Read-only mode

In single user mode, only the root filesystem is mounted. And it's mounted read-only. To fix that:

fsck -y
mount -u /
mount -a -t ufs

After that edit/pico/vi should work and you will be able to edit /etc/rc.conf.

 

[psycho]

o tnx , solved problem.
Can you SirDice be so kind to explain what this piece of code does?

 

[jalla]

o tnx , solved problem.
Can you SirDice be so kind to explain what this piece of code does?

I suspect he can, but you really should see the manpages for whatever commands here you don't understand.

 

[tangram]

o tnx , solved problem.
Can you SirDice be so kind to explain what this piece of code does?

Have fun:
rc.conf(5)
ifconfig(8)

 

[Beastie]

I think he rather means the fsck and mount commands.

fsck does a file system consistency check and answers yes to all questions asked.

Then you unmount the root partition (since it was mounted read-only by default).

Then you mount all partitions of the ufs type (to ensure only system partitions are mounted).

fsck(8)
mount(8)

 

[tangram]

Oh yeah...

# fsck -p
# mount -u /
# mount -a -t ufs
# swapon -a

This checks the file systems, remounts / read/write and mounts all the other UFS file systems referenced in /etc/fstab.

 

[SirDice]

Then you unmount the root partition (since it was mounted read-only by default).

Actually, you remount the root filesystem with "mount -u /" (You cannot unmount a filesystem that's in use ) with the settings in /etc/fstab (which usually means read/write).

 

[Beastie]

Of course, yes. You're exactly right. My bad.