Re: what serve the file in the /dev directory
Look in /usr/src/kernel-source-??/Documentation/devices.txt for information on devices. On Sun, 29 Mar 1998, Alain Toussaint wrote: Hello i need to know what serve the files in the /dev directory,it's because i did some experiment trying to build a boot/root disk set (sort of rescue disk and a good way to learn about linux),i copied all the files in the /dev directory to a floppy disk (the root disk in question) using this method: cd /dev find . -print | cpio -pmd /mnt/dev i also copied the needed library for bash ( libreadline.so.2, libncurses.so.3.0, libdl.so.1 and libc.so.5 ) but now,i lack the space needed for copying bash,does anyone here know where i can get the information i need to safely prune the /dev directory without erasing something important ?? thanks a lot for your help !! Alain -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] /*** Running Debian Linux *** * For God so loved the world that He gave his only begotten Son, * * that whoever believes in Him should not perish...John 3:16 * * W. Paul Mills* Topeka, Kansas, U.S.A.* * [EMAIL PROTECTED] * http://homepage.midusa.net/~wpmills/ * * [EMAIL PROTECTED] * http://www.networksplus.net/wpmills/ * * Bill, I was there several years ago, why would I want to go back? * / -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: what serve the file in the /dev directory
i did some work removing unneeded files/devices in the /dev directory but i still get an error ( cp: /mnt/bin/bash: No space left on device ),what command i need to do to know the space left on my disk and does there is some utility to compress the library so they still remain executable (i allready taken care off the potential performance hit because the root disk is copied to a ramdrive and root is mounted there). Alain -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: what serve the file in the /dev directory
My /dev directory only takes up 1.4MB of space. To my understanding, it normally isn't a good idea to erase device files. The same goes for any system file. Anyway, you can use the df and du commands to find out what your disk usage is. Look at the man pages for the appropriate command line arguments. You mentioned that you copied your /dev directory in an earlier message. Copying the /dev directory is generally not a good idea, at least for the device files. Use the MAKEDEV shell script in /dev or the mknod command to recreate your /dev directory. The first (and last) time I tried copying my /dev directory on UN*X system, specifically Solaris, the copy ended up going in to an infinite loop when the /dev/zero device was copied. -Ossama -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: what serve the file in the /dev directory
The files in the /dev are not the actual device drivers , but the files corresponding to a spesific device driver , so on my system the /dev/hda is the first harddisk etc. You don't actually need everyone. If you dont have a scsi disk you cant omit all the /dev/sd files. The best way to make these files are with the MAKEDEV script (or if you want you can make them manually with the mknod command ). The BootDisk-HOWTO has a list at the end telling which files you must have . On a really plain bootdisk i got away with : # ls -l /mnt/dev/ crw--w--w- 2 root tty4, 0 Mar 29 07:06 console brw-rw 1 root floppy 2, 0 Mar 29 07:06 fd0 brw-rw 1 root disk 1, 250 Mar 29 07:06 initrd crw-rw-rw- 1 root sys 10, 2 Mar 29 07:07 inportbm crw-rw 1 root kmem 1, 2 Mar 29 07:06 kmem crw-rw 1 root kmem 1, 1 Mar 29 07:06 mem crw-rw-rw- 1 root sys1, 3 Mar 29 07:07 null brw-rw 1 root disk 1, 0 Mar 29 07:06 ram0 brw-rw 1 root disk 1, 1 Mar 29 07:06 ram1 brw-rw 1 root disk 1, 2 Mar 29 07:06 ram2 brw-rw 1 root disk 1, 3 Mar 29 07:06 ram3 brw-rw 1 root disk 1, 4 Mar 29 07:06 ram4 brw-rw 1 root disk 1, 5 Mar 29 07:06 ram5 brw-rw 1 root disk 1, 6 Mar 29 07:06 ram6 brw-rw 1 root disk 1, 7 Mar 29 07:06 ram7 lrwxrwxrwx 1 root root4 Mar 29 07:06 ramdisk - ram0 crw--w--w- 2 root tty4, 0 Mar 29 07:06 systty crw-rw-rw- 1 root sys5, 0 Mar 29 09:23 tty lrwxrwxrwx 1 root root7 Mar 29 09:23 tty0 - console crw--w--w- 1 root tty4, 1 Mar 29 07:05 tty1 crw--w--w- 1 root tty4, 2 Mar 29 07:05 tty2 crw--w--w- 1 root tty4, 3 Mar 29 07:06 tty3 crw--w--w- 1 root tty4, 4 Mar 29 07:06 tty4 crw--w--w- 1 root tty4, 5 Mar 29 07:06 tty5 crw--w--w- 1 root tty4, 6 Mar 29 07:06 tty6 crw-rw-rw- 1 root sys1, 5 Mar 29 07:07 zero But this doesn't add support for any type of fixed disk. The link from systty to console is after my understanding rather important, since my system won't boot witout it ! Happy hacking ! George Bonser wrote: Those are your device drivers! BE CAREFUL IN THERE! For example, if you have an ide hard disk it is /dev/hda On Sun, 29 Mar 1998, Alain Toussaint wrote: Hello i need to know what serve the files in the /dev directory,it's because i did some experiment trying to build a boot/root disk set (sort of rescue disk and a good way to learn about linux),i copied all the files in the /dev directory to a floppy disk (the root disk in question) using this method: cd /dev find . -print | cpio -pmd /mnt/dev i also copied the needed library for bash ( libreadline.so.2, libncurses.so.3.0, libdl.so.1 and libc.so.5 ) but now,i lack the space needed for copying bash,does anyone here know where i can get the information i need to safely prune the /dev directory without erasing something important ?? thanks a lot for your help !! Alain --- [EMAIL PROTECTED] http://dragon.telnett.no/~fredrik Don't trust an operating system were you don't have the source. -- --- [EMAIL PROTECTED] http://dragon.telnett.no/~fredrik Don't trust an operating system were you don't have the source. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
what serve the file in the /dev directory
Hello i need to know what serve the files in the /dev directory,it's because i did some experiment trying to build a boot/root disk set (sort of rescue disk and a good way to learn about linux),i copied all the files in the /dev directory to a floppy disk (the root disk in question) using this method: cd /dev find . -print | cpio -pmd /mnt/dev i also copied the needed library for bash ( libreadline.so.2, libncurses.so.3.0, libdl.so.1 and libc.so.5 ) but now,i lack the space needed for copying bash,does anyone here know where i can get the information i need to safely prune the /dev directory without erasing something important ?? thanks a lot for your help !! Alain -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: what serve the file in the /dev directory
Those are your device drivers! BE CAREFUL IN THERE! For example, if you have an ide hard disk it is /dev/hda i do know,i take extreme precaution before making a move there but there's cryptic devices there who i don't know they're purpose,all who's compiled in my custom kernel is serial,ide hard drive and ide cd so i know that i dont touch ttyS* hda and hdb,i removed sd* and lp device (i didn't compiled these in the kernel),here's the device i'm not sure about they're definition: nst*, pty*, hitcd, hwtrap, importbm, jbm, logibm, mcd, st* ( are these an interface for st506 hard drive), ttyq*, md*, rft*, qscd, xda*, sndstat. that's nearly all i've found in my /etc directory on the disquette who i dont know about these. Alain Toussaint p.s. the * denote a wildcard,i didn't wanted to write the full name of the device. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
