my server is almost 100% immutable :) easiest way of protecting the boot sequence up to load. and one way to remove that is remove the immutable flag simple and clean
----- Original Message ----- From: Gerald Timothy Quimpo <[EMAIL PROTECTED]> Date: Mon, 2 Dec 2002 13:22:05 -0500 To: [EMAIL PROTECTED] Subject: Re: [plug] can't delete a file > hi sacha, val, > > On Monday 02 December 2002 04:44 pm, Sacha Chua wrote: > > This is a result of the file being marked as immutable (chattr +i > > /var/log/messages). You can remove the immutable flag with chattr -i > > /var/log/messages > > regarding your reply: > > i cannot think of a situation where /var/log/messages being immutable > would be useful. well, except one, i guess, where we set it immutable > so that it can't grow, but then ln -s /var/log/messages /dev/null works > for that too, and it works better since whatever is logging won't > get "write failed" errors. > > is there some other scenario where /var/log/messages would be immutable > and it would be a good thing? > > regarding val's original problem: > > [something that might help] > i *have* had problems before where i could not delete files even > though "ls" showed them (and the permissions were good). > those were due to the box having been turned off without > shutting down (power plug removed for some reason, or > suspend failed and i had to turn the notebook off and on). > i guess ext3 (where /var/log is) and reiser (where i have /home) > sometimes barf when restoring the journal. it's as if the directory > entries were there but didn't point at the right inodes or something. > so when i'd try to delete the files i couldn't. > > going to single user mode and doing an fsck would fix most > problems. > > on the other hand, the original question had to do with identifying > where the original file is after an ln (i don't know why that would be, > there's not really any good reason to do a hard link for /var/log/messages > either, although i often do symbolic links (ln -s) when, for instance, > i decided on partition sizes wrong when setting things up and now > i want to have the logs on /usr/var/log but i still need links to them > in /var/log so that stuff that logs to there still works. > > i suppose he didn't mean an ln -s since an ls -l would show where > the real file is. so i guess he means a hard link. is there a > meaningful answer to this question? or is the question not > meaningful? what i mean is, does linux (or, in general, unix) even > keep track of the concept of a file's [not the filename, the actual > data on disk organized as one logical unit] original filename? > > i get the impression that for hard links (i.e., no -s param to ln), there > is no concept of an "original" filename . the file (on disk, so the physical > data, not the "name") will get physically deleted when the last hard link to > the file is deleted. i may be very wrong here though. if someone knows > i am, i'd be glad to be corrected. > > is there some program in linux (or unix, generally) that will list all > the filenames that are linked to the same file? the best i can find for now > is: get the inode of one of the hard links (with a little program that calls > stat and prints the inode), then: > > find -inum <inodenumber> > > tiger > > -- > Gerald Timothy Quimpo tiger*quimpo*org gquimpo*sni-inc.com tiger*sni*ph > Public Key: "gpg --keyserver pgp.mit.edu --recv-keys 672F4C78" > Veritas liberabit vos. > Inigo Montoya: You seem a decent fellow, I hate to kill you. > Westley: You seem a decent fellow, I hate to die. > _ > Philippine Linux Users Group. Web site and archives at http://plug.linux.org.ph > To leave: send "unsubscribe" in the body to [EMAIL PROTECTED] > > Fully Searchable Archives With Friendly Web Interface at http://marc.free.net.ph > > To subscribe to the Linux Newbies' List: send "subscribe" in the body to >[EMAIL PROTECTED] > -- __________________________________________________________ Sign-up for your own FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup One click access to the Top Search Engines http://www.exactsearchbar.com/mailcom _ Philippine Linux Users Group. Web site and archives at http://plug.linux.org.ph To leave: send "unsubscribe" in the body to [EMAIL PROTECTED] Fully Searchable Archives With Friendly Web Interface at http://marc.free.net.ph To subscribe to the Linux Newbies' List: send "subscribe" in the body to [EMAIL PROTECTED]
