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Make some money - linux/Plesk guru
- Thread starter stevenb
- Start date
Audi TT Stronic
Hi got your PM.
When you boot into single user mode does it boot without problem ? and are your drives being mounted correctly or are you having to manually mount them.
Have you tried booting into linux rescue mode ?
If you can, boot to rescue mode then cd to /mnt/sysimage/etc and edit your /etc/passwd and /etc/shadow directly or with vipw
Also, if you can create a /etc/passwd and /etc/shadow then you can leave the root password blank and then change it by going to single user again and typing passwd.
When you boot into single user mode does it boot without problem ? and are your drives being mounted correctly or are you having to manually mount them.
Have you tried booting into linux rescue mode ?
If you can, boot to rescue mode then cd to /mnt/sysimage/etc and edit your /etc/passwd and /etc/shadow directly or with vipw
Also, if you can create a /etc/passwd and /etc/shadow then you can leave the root password blank and then change it by going to single user again and typing passwd.
Last edited:
I make all the changes in single user ( recovery) mode as root can now not login to normal mode via ssh
Ive tried mounting it but not with that command so will try that in a bit,
Ive tried editing /etc/passwd and shadow with pico save the file see its changed by going ls -la
reboot out of single ser mode and the file reverts back and any changes are not saved.
Im going to try
mount -uw /
now andsee what happens and your mnt/ comand
Ive tried mounting it but not with that command so will try that in a bit,
Ive tried editing /etc/passwd and shadow with pico save the file see its changed by going ls -la
reboot out of single ser mode and the file reverts back and any changes are not saved.
Im going to try
mount -uw /
now andsee what happens and your mnt/ comand
Audi TT Stronic
root is normally disabled for remote SSH logins by default (for security), you should log in with a normal user account then su to root.
if your running in rescue mode then your running a 'virtual' filesystem, your editing a virtual file...
dont edit /etc/passwd and /etc/shadow
DO edit
/mnt/sysimage/etc/passwd
and
/mnt/sysimage/etc/shadow
otherwise next time you reboot it will be back the way it was !
Your REAL filesyste is located in /mnt/sysimage when you go into rescue mode.... hence to edit your REAL passwd file you have to edit /mnt/sysimage/etc/passwd
hope that makes sense.
root@wpc0049:~# /mnt/sysimage/etc
-bash: /mnt/sysimage/etc: No such file or directory
as with some other mount commands this one dosnt work either
2.6.15.7-ubuntu1-live #1 SMP Mon Sep 4 15:12:51 UTC 2006 i686 GNU/Linux
Welcome to your recovery system!
-bash: /mnt/sysimage/etc: No such file or directory
as with some other mount commands this one dosnt work either
2.6.15.7-ubuntu1-live #1 SMP Mon Sep 4 15:12:51 UTC 2006 i686 GNU/Linux
Welcome to your recovery system!
Audi TT Stronic
ah okay your using ubuntu, forget the /mnt/sysimage then.
Your drives are mounted as read-only when you go into rescue mode so you must re-mount them as read/write using
mount -rw -o remount
that will remount / as read/write. if you /etc is on a seperate partition you must remount that aswell.
The command
pwconv
will rebuild your shadow file from the passwd file, then change your root password using the
passwd
command.
Its worth check /var/backup as you may have passwd and shadow file backups in there. they will have the .bak extention on them, eg shadow.bak...
when you boot the system normally what error are you getting ?
Your drives are mounted as read-only when you go into rescue mode so you must re-mount them as read/write using
mount -rw -o remount
that will remount / as read/write. if you /etc is on a seperate partition you must remount that aswell.
The command
pwconv
will rebuild your shadow file from the passwd file, then change your root password using the
passwd
command.
Its worth check /var/backup as you may have passwd and shadow file backups in there. they will have the .bak extention on them, eg shadow.bak...
when you boot the system normally what error are you getting ?
It doesn't the users do, and it's bloody complicated to sort out, that's why I never get too deep into Linux, it starts to melt my s**tty brain
Nah, it's easy to fix compared to Windows servers.
You ever seen a Windows Active Directory domain which is out of sync between the controllers?
Same with IIS - I can fix Apache quicker than IIS Manager loads, let alone look at the mess which is inside it!!
Altho, technically, "Linux" is just the kernel.. so..
172
I don't do servers I hate anything like that it bores the pants off me. I'm down on the list to be 2nd in command with all our servers @ work (inc. gentoo linux servers), but I just don't want to. I need to though as I feel sorry for the guy who looks after them all now, poor lad is worked to the bone with them and needs some backup.
I hate anything like that it bores the pants off me. I'm down on the list to be 2nd in command with all our servers @ work (inc. gentoo linux servers), but I just don't want to. I need to though as I feel sorry for the guy who looks after them all now, poor lad is worked to the bone with them and needs some backup.Solution:
We log in in single user mode and found the correct part to mount issued these commands
# mkdir /mnt/hda3
# mount /dev/hda3 /mnt/hda3
That’s where all of the harddrive data is kept. Took a while to find it.
cp /mnt/hda3/etc/passwd-backup /mnt/hda3/etc/passwd
cp /mnt/hda3/etc/group-backup /mnt/hda3/etc/group
reboot to normal mode
Done – Thanks to the help of someone over MSN we both had the challenge but took a while 4 commands in the end. Im so grateful for all the help I received.
We log in in single user mode and found the correct part to mount issued these commands
# mkdir /mnt/hda3
# mount /dev/hda3 /mnt/hda3
That’s where all of the harddrive data is kept. Took a while to find it.
cp /mnt/hda3/etc/passwd-backup /mnt/hda3/etc/passwd
cp /mnt/hda3/etc/group-backup /mnt/hda3/etc/group
reboot to normal mode
Done – Thanks to the help of someone over MSN we both had the challenge but took a while 4 commands in the end. Im so grateful for all the help I received.
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