[arm-allstar] The forgotten root password blues

[KK4MJZ Repeater Admin]

One question regarding this.   How can you make a backup copy of shadow if you cannot get in via root?

> On Apr 11, 2020, at 03:07, KK4MJZ Repeater Admin <info at kk4mjz.com> wrote:
> 
> Thanks David!  I will give this a try!
> 
> 
> 
>> On Apr 11, 2020, at 02:29, Doug Crompton via ARM-allstar <arm-allstar at hamvoip.org> wrote:
>> 
>> From an earlier message...  It involves a few step and in many cases it
>> might be easier to just re-setup the node. Your choice....
>> 
>> I've gotten a few e-mail messages requesting more info about editing the
>> /etc/shadow file.  So, here it is.....
>> 
>> First, make a backup copy of this file, something like:
>> 
>> cd /etc
>> cp shadow shadow.backup
>> 
>> Then, here is what the contents looks like. Your file will probably be
>> slightly different. That's fine. Notice that I'm just including the 9
>> lines of the file. The remainder was below the <snip>. Don't truncate this
>> file when editing!
>> 
>> [root at Allstar-inttek etc]# cat shadow
>> root:$6$l7HzU5Ge$i.yO6XqGhbFnQQxLUI/NZoD2k23vbEhASTlV.cP40cFrsWpmfo3i5BEKyD0ZKFeE4guXsgsmgX0270cSBW3ir/:17684::::::
>> bin:x:14871::::::
>> daemon:x:14871::::::
>> mail:x:14871::::::
>> ftp:x:14871::::::
>> http:x:14871::::::
>> uuidd:x:14871::::::
>> dbus:x:14871::::::
>> nobody:x:14871::::::
>> <snip>
>> 
>> 
>> Note that only the "root" entry contains a password hash---this is the
>> second field. The fields are delimited by colons (":"). The first field is
>> the account name.
>> 
>> Rename the "root" account line to something else, like "root_old"...You
>> can also remove the old line entirely, if preferred:
>> 
>> root_old:$6$l7HzU5Ge$i.yO6XqGhbFnQQxLUI/NZoD2k23vbEhASTlV.cP40cFrsWpmfo3i5BEKyD0ZKFeE4guXsgsmgX0270cSBW3ir/:17684::::::
>> 
>> 
>> Now, paste in THIS  new line for the "root" account and save the file. It
>> has a hashed password of: HAMfun1901
>> 
>> root:$6$lOf4wZcQ$J6X9iCrOG9powS9hglu/4ozgEwf.b7wjh3Fq7Tx7p5JXr4EfuQpmgCIjV2Lsxq.lOLnosW9ld6iakF2Fz5F7H1:18235::::::
>> 
>> 
>> So, the /etc/shadow file will now look like:
>> 
>> 
>> [root at Allstar-inttek etc]# cat shadow
>> root:$6$l7HzU5Ge$i.yO6XqGhbFnQQxLUI/NZoD2k23vbEhASTlV.cP40cFrsWpmfo3i5BEKyD0ZKFeE4guXsgsmgX0270cSBW3ir/:17684::::::
>> root_old:$6$l7HzU5Ge$i.yO6XqGhbFnQQxLUI/NZoD2k23vbEhASTlV.cP40cFrsWpmfo3i5BEKyD0ZKFeE4guXsgsmgX0270cSBW3ir/:17684::::::
>> bin:x:14871::::::
>> daemon:x:14871::::::
>> mail:x:14871::::::
>> ftp:x:14871::::::
>> http:x:14871::::::
>> uuidd:x:14871::::::
>> dbus:x:14871::::::
>> nobody:x:14871::::::
>> <snip>
>> 
>> 
>> You can now place the SD card back in the original RPi and boot.  You
>> should be able to login as root with the password: HAMfun1901   ....Then,
>> go and change the root password to something else!
>> 
>> 73, David KB4FXC
>> 
>>> On Sat, Apr 11, 2020 at 2:26 AM "KK4MJZ Repeater Admin via ARM-allstar" <
>>> arm-allstar at hamvoip.org> wrote:
>>> 
>>> With the numerous hacking attempts, I have changed tons of passwords that
>>> I frequently use.  Unfortunately I made my hamvoip ASL extremely hard and
>>> had a phone call right after without putting it in my secure password
>>> Database.
>>> 
>>> Ive been reading numerous ways to reset it, but wanted to check to see if
>>> there is a certain way everyone here recommends?  Thank you in advance for
>>> the help.
>>> _______________________________________________
>>> 
>>> ARM-allstar mailing list
>>> ARM-allstar at hamvoip.org
>>> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>>> 
>>> Visit the BBB and RPi2/3/4 web page - http://hamvoip.org
>>> 
>> _______________________________________________
>> 
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>> 
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