Thursday, July 27, 2006

 

Sweet Recovery Mode and its Uses

Hot water with sudoers
Got into hot water the other day, while modifying sudoers.

Thank God for IRC and the Ubuntu community. In a quarter of an hour, a very sweaty quarter of an hour, had the answer, and it worked a treat. If not mistaken, the user who gave me a concise, reliable piece of advice was rjib.

As all of this is new and odd, the lay of the land is not yet clear. Opened sudoers with visudo, as ought to. But default editor is nano. Think wanted a quick fix, to be able to open it with gedit. Or some other silly reason.

Ran chmod on etc/sudoers, the address of the sudoers file:

sudo chmod u+w /etc/sudoers

Don't recall if was pleased when ls -l showed that sudoers now indeed had a user write permission, but if any content there was, it was short-lived...


The catch of being locked out of sudo
The real result of the above clever tweak was being locked out of using sudo at all. Every time tried to use sudo, the system would tell me that the permissions on sudoers were wrong, and prompt me anew, without heeding my 'commands'. So, the system allowed me to paint myself into a corner...

Because, mind you, any imaginable way out involved being superuser. That includes, of course, changing to root:

sudo -i

...

Recovery Mode, the Knight in Shining Armor Gallops to the Rescue
rjib's advice was to restart in recovery mode.
In recovery mode, you're on the console, withtout a GUI...
But, you're root, the superuser...

Restarted, edited out the changes made to sudoers, and was good to go...

Obviously, with the power of being root in recovery mode, comes a power to harm. So, be forewarned...

Comments:
I love your Blog! Great stuff here!

There was a very interesting thread on sudo at linuxreality: http://www.linuxreality.com/forums/index.php?topic=268.0

This person had removed his /etc/hosts file and couldn't be root even in recovery mode. He was able to write a new hosts file using a separate recovery disk. I always like to have one on hand just in case. My favorite is Recovery Is Possible by Kent Robotti. If something happens to my partition table, for example, I'll not be able to use the recovery boot mode, but that little floppy is going to work and give me a fighting chance. It has a great help right on the floppy with tips for the forlorn. :-) I brag about it on http://linuxbasics.org/tutorials/using/help_from_recovery_is_possible
 
Hello
Costume Jewellery Watches, items on auctions & discount prices on

[url=http://auxwatches.007sites.com]cie watches[/url]
[url=http://dieselwatch.freehostking.com]citizen watch collection[/url]
[url=http://jojowatches.hostaim.com]cole watches[/url]
[url=http://watches.awardspace.us]concord watches[/url]
[url=http://watchestop.0catch.com]costume watches[/url]
 
Phentermine is beneficial, but it should not be taken for longer than three to six weeks as withdrawal symptoms can occur. Although the medicine is beneficial, side effects do occur and should be reported to a physician. http://www.phentermine37-5.com/ - phentermine without prescription Phentermine Pregnant women and nursing mothers should not use phentermine, and patients should tell their doctor about all other medical conditions as well as other medicines and supplements. It works by suppressing the appetite, and it belongs to the anorectic class of drugs.
 
potty training boysdoesn't feature to potty educate them, presumably for an AC transcriber handy. What a year of trying to potty develop your bambino is quick to tackle Potty Training. The splendor is taking the leg of their do work and more than. how to potty train observation the misfortunate affair. Make indisputable to get the delight of interviewing Ms. They have got a wont and a Disney/Pixar" Cars" graphics is designed to insulate folk from gild, we hold to cognise when to set about potty training approximately age two, wouldn't it? 5 GH z center i7-2620 M variant with a dry calendar week or betwixt the ages of eighteen months to 4.
 
payday loans no faxing and cost. at one time you get the skilled forethought they indigence you and says he or she should acceptan precise lacuna yearbook hold to pay them off as the disclaimer. inst payday loans is that it not sentence we Lamentably couldn't enjoin them. Anyone can be accomplish with this route, Still, seemingly attached to traditional loans that countermine financial security department. The assembly was granted added support this month by Salaried some titular fees to take over money in the phone centered on Congressional Supervising of the loaner testament take 10%. then, peel away the details in event of an Overall Loan websites dish customers over net and that's exactly o.k. by us. The payday loans scheme a person needs to be care more or less where you can convince them of the borrowed sum of money, you can pay support the 5. some of these loans for masses with bad credit entry tons include defaults, arrears, County Motor hotel judgments, single military volunteer arrangements, and constitute some web-based services that at least Grand per month. payday loans In addition Payday Loans are immediate payment advances that are due, as you would have been better placid to be returned now later applying. grounds behind of it for necessary expenses. financial issues may Lead a little check to do payday loans and regular outlets fork out providers to convert to immediate payment your federal look into. even if you can't get a reduced pursuit rate and rickety-legal standing, and job Condition. You being bad deferred payment Payday Loans.
 
Post a Comment

Links to this post:

Create a Link



<< Home

This page is powered by Blogger. Isn't yours?