2.2.18 e patch OpenWall
Elenco dei files e delle versioni di patches
leggere il nome del file di kernel da /etc/lilo.conf (linea /boot/vmlinuz???)
mkbootdisk -device /dev/fd0 ??? (es. 2.2.12-20)
riavviare provando se funziona
rm -rf /usr/src/linux
rm -rf /usr/src/linux-2.2. {....}
rm -rf /lib/modules/2.2. {...}
oppure
rpm -qa | grep kernel
rpm -e --nodeps kernel-headers kernel
rm -rf /usr/src/linux-2.2. {...}
rn -rf /lib/modules/2.2. {...}
muovere il file in /usr/src/ e scompattarlo
tar zxvfp linux-version...
rm -f linux-version...
nel file /usr/src/linux/include/linux/tasts.h
cambiare i parametri
NR_TASKS da 512 a 3072
MIN_TASKS_LEFT_FOR_ROOT da 4 a 24
nel file/usr/src/linux/Makefile
HOSTCC da gcc a egcs
CC da $(CROSS_COMPILE)gcc -D__KERNEL__ -I$(PATH)
a $(CROSS_COMPILE)egcs -D__KERNEL__ -I$(PATH)
CFLAGS da -WALL -Wstrict-prototypes -O2
-fomit-frame-pointer
a {quello del processore}
HOSTCFLAGS da -Wall -Wstrict-prototypes -O2
-Fomit-frame-pointer
a {quello del processore}
{RICONTROLLARE!}
muovere il file linux-...-ow2_tar.gz /usr/src
cd /usr/src
tar xzvfp linux-...-ow2_tar.gz
cd linux-...ow2
mv linux-...ow2.diff /usr/src
patch -p0 <linux-...-ow2.diff
rm -rf linux-2....
rm -f linux-2.2....diff
rm -f linux..-ow2_tar.gz
verso asm/ linux/ e scsi/ da /usr/include
cd /usr/src/linux
make mrproper
make menuconfig
oppure make config
oppure usare il file .config gia' preparato
Note sulle opzioni da variare rispetto al default:
Processor type:
- config_snp? N
Loadable modules support:
- config_modules? N
General setup:
- config_pci_quirks? N
-config_pci_old_proc? N
Plug and play support:
Block devices:
- config_blk_dev_cmd640? N
- config_blk_dev_rz1000? N
Networking options:
- config_firewall? Y
- config_ip_firewall? Y
- config_syn_cookies: Y
Telephony support:
SCSI support:
- config_scsi_multi_lun? N
- config_scsi_constants? N
SCSI low-level drivers:
- {scegliere la scheda giusta}
Network device support:
ARCnet devices:
Ethernet (10 o 100MBit):
Ethernet (1000 MBig):
Token Ring devices:
WAN interfaces:
Amateur Radio support:
IrDA support:
ISDN support:
Old cd-rom drivers (non SCSI non IDE)
Character devices:
- config_unix98_pty_count? [256] 128
Mice:
- config_82c710_mouse? N
Joystick support:
Video for Linux:
Ftape:
Filesystems:
- config_quota? Y
- config_autofs_fs? N
Network file systems:
- config_nfs_fs? N
Partition Types:
Console drivers:
Sound:
- config_sound? N
Security options (openwall):
- config_secure_proc? Y
- config_secure_shm? Y
Kernel hacking
cd /usr/src/linux
make dep; make clean; make bzImage
eventualmente (nel caso si usino i moduli)
make modules
make modules_install