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PC- ( Linux-) . - , ; , , (i-node), .., . , ; , (fsck).
, (fsck -a). , , , , . , (. 2.2) .
, , " " (read-only, r/o). read-only , , (/tmp, /var/run, /var/log, ...) " " (read/write, r/w). ( , .pid , ..). :
r/w /var/lib/roroot/volatile, (/etc/init.d/boot) /var/lib/roroot/volatile.ini. r/o , , r/w :
ln -s /var/lib/roroot/volatile/X/Y/Z /X/Y/Z
r/o.
/etc/mtab mount . "mount -n" mtab, , mtab (, df mount) .
, /proc/mounts, /etc/mtab, .
/etc/mtab : /etc/mtab /proc/mounts, "mount -n".
modprobe , , kerneld, , . /etc/init.d/modutils , . /lib/modules/`uname -r`/modules.dep r/o , . /etc/init.d/modutils, modules.dep r/w.
, - . ( ), modules.dep.
, login (chown, chmod) /dev/ttyXXX, . /dev r/o , .
( , ) , root. login chown chmod, -- , /dev r/o . /dev r/w , -- , r/w .
a /bin/login, chown/chmod EROFS.
- , . , , , , IP- (pppmlogin.db) , . "syslog to remote host", r/o - r/w .
. r/w /var/lib/roroot/volatile, (mount -t nfs) /var/lib/roroot/remote. , r/o , "r/w ", :
ln -s /var/lib/roroot/remote/X/Y/Z /X/Y/Z
(roroot-NNN.deb), (dpkg -i) , .. ; dish-router .
dish-router:~# fdisk Using /dev/hda as default device! Command (m for help): p Disk /dev/hda: 10 heads, 34 sectors, 984 cylinders Units = cylinders of 340 * 512 bytes Device Boot Begin Start End Blocks Id System /dev/hda1 1 1 20 3383 1 DOS 12-bit FAT /dev/hda2 * 21 21 562 92140 83 Linux native /dev/hda3 563 563 755 32810 82 Linux swap /dev/hda4 756 756 984 38930 83 Linux native Command (m for help):
dish-router:~# ls -l `find / -lname '*roroot*'` lrwxrwxrwx 1 root root 28 Sep 29 22:41 /tmp -> /var/lib/roroot/volatile/tmp lrwxrwxrwx 1 root root 36 Sep 30 17:47 /var/backups -> /var/lib/roroot/volatile/var/backups lrwxrwxrwx 1 root root 35 Sep 29 22:41 /var/catman -> /var/lib/roroot/volatile/var/catman lrwxrwxrwx 1 root root 33 Sep 29 22:41 /var/lock -> /var/lib/roroot/volatile/var/lock lrwxrwxrwx 1 root root 32 Sep 29 22:41 /var/log -> /var/lib/roroot/volatile/var/log lrwxrwxrwx 1 root root 32 Sep 29 22:41 /var/run -> /var/lib/roroot/volatile/var/run lrwxrwxrwx 1 root root 38 Sep 29 22:41 /var/spool/lpd -> /var/lib/roroot/volatile/var/spool/lpd lrwxrwxrwx 1 root root 40 Sep 29 22:41 /var/spool/smail -> /var/lib/roroot/volatile/var/spool/smail lrwxrwxrwx 1 root root 32 Sep 29 22:41 /var/tmp -> /var/lib/roroot/volatile/var/tmpsizif@botik.ru
Last modified: Sun Oct 5 00:15:27 MSD 1997