On Tuesday 27 September 2005 12:24, [EMAIL PROTECTED] wrote: > Hi, > Any clue where to look for this problem? I guess it must be possible > for me to write some suitable "printf" in some part of the kernel > where the check is made.... Ok, will debug this. However the relevant source files should be arch/um/drivers/ubd_*.c and arch/um/drivers/*cow*
> Also another Q: the "umlid" argument seems to be ignored (wherever I > put it in the argument list) as I just get some random characters for > the socket name, although they do work. Am I using the umlid correctly? It's spelled umid=, not umlid= - and ./vmlinux --help is correct about this. Yes, it can be confusing. > BTW: UML is very cool. I am about to deploy 3 UMLS on 80 student lab > machines so they can do some security tool experiments (hack into the > machines, learn to spot a rootkit and learn how to fix them, use SNORT, > iptables between them etc....). This kind of activity is very difficult to > achieve on multiple machines for large student numbers. I am building > a "uml_manager" in Tcl to start/stop/save COW snapshots etc, does > anyone else know of tools like this? Search for netkit, especially since the given field of your activity. > Regards, > > Martin > > Blaisorblade writes (edited with a few answers to Qs): > > On Saturday 24 September 2005 20:12, [EMAIL PROTECTED] wrote: > > > Hi, > > > > > > I cannot successfully move the backing file of a COW file. I am > > > following the instructions for moving the backing file given at: > > -edited- > > > This is what you complain about, but > > > > > Failed to get modification time of backing file > > > "/somewhere/root_fs", err = 2 Failed to open > > > '/somewhere/root_fs_cow', errno = 2 > > > > What's this? It doesn't even find the COW file. Would you please > > double check your configuration (say a startup script broken by the > > move or anyway some other change)? > > Checked all permissions etc no obvious problems, no change to the > system except for a reboot so nothing should be broken > > > Btw: > > > usermode-utilities-20040406 > > > > Hope that's the -r1 Gentoo release (which contains a local DoS > > security fix - an unprivileged user could easily bring down an > > interface). > > Sure is, but thanks for the warning. > > Martin > -- > Dr. M.J. Reed Room: 1NW.5.3G > Dept. Electronic Systems Engineering Tel:+44 (0)1206 872479 > University of Essex, Colchester CO4 3SQ, UK FAX:+44 (0)1206 872900 > Email mjreed (non Essex users should add @essex.ac.uk) > Web: http://esewww.essex.ac.uk/~mjreed -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894) http://www.user-mode-linux.org/~blaisorblade ___________________________________ Yahoo! Mail: gratis 1GB per i messaggi e allegati da 10MB http://mail.yahoo.it ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl _______________________________________________ User-mode-linux-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
