SIMULATIONUpgrading the kernel as 2.6.36.7.1, and configure the system to Start the default kernel, keep the old kernel available.
Answer(s): A
# cat /etc/grub.conf# cd /boot# lftp it# get dr/dom/kernel-xxxx.rpm# rpm -ivh kernel-xxxx.rpm# vim /etc/grub.conf default=0
SIMULATIONCreate a 512M partition, make it as ext4 file system, mounted automatically under /mnt/data and which take effect automatically at boot-start.
# fdisk /dev/vdan+512Mw# partprobe /dev/vda# mkfs -t ext4 /dev/vda5# mkdir -p /data# vim /etc/fstab/dev/vda5 /data ext4 defaults 0 0# mount -a
SIMULATIONCreate a volume group, and set 8M as a extends. Divided a volume group containing 50 extends on volume group lv (lvshare), make it as ext4 file system, and mounted automatically under /mnt/data. And the size of the floating range should set between 380M and 400M.
# fdisk# partprobe# pvcreate /dev/vda6# vgcreate -s 8M vg1 /dev/vda6 -s# lvcreate -n lvshare -l 50 vg1 -l# mkfs.ext4 /dev/vg1/lvshare# mkdir -p /mnt/data# vim /etc/fstab/dev/vg1/lvshare /mnt/data ext4 defaults 0 0# mount -a# df -h
SIMULATIONDownload ftp://192.168.0.254/pub/boot.iso to /root, and mounted automatically under /media/cdrom and which take effect automatically at boot-start.
# cd /root; wget ftp://192.168.0.254/pub/boot.iso# mkdir -p /media/cdrom# vim /etc/fstab/root/boot.iso /media/cdrom iso9660 defaults,loop 0 0# mount -amount [-t vfstype] [-o options] device dir
SIMULATIONAdd admin group and set gid=600
# groupadd -g 600 admin
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