Example Midterm Test Questions
1. List the 5 steps (exact commands) you would enter in order to
format an ext3 file system on hard drive partition /dev/sdb2,
label it BACKUP, set its maximum mount count to 50, check it for
errors and mount it on directory /mnt.
You should assume the mount point and the hard drive partition
already exist and that the partition has never been formatted.
[ Each command is worth one mark. ]
1st COMMAND: mkfs.ext3 /dev/sdb2
2nd COMMAND: e2label /dev/sdb2 BACKUP
3rd COMMAND: tune2fs -c 50 /dev/sdb2
4th COMMAND: e2fsck -ycfv /dev/sdb2
5th COMMAND: mount /dev/sdb2 /mnt
2. Describe the process to create two partitions, physical volume, volume group, filesystem, label it, extent the volume group and logical volume and then resize the filesystem.
1st COMMAND: fdisk /dev/sdb
2nd COMMAND: pvcreate /dev/sdb1 /dev/sdb2
3rd COMMAND: vgcreate seneca /dev/sdb1
4th COMMAND: lvcreate -n home --size 500M seneca
5th COMMAND: mkfs.ext3 /dev/seneca/home
6th COMMAND: mount /dev/seneca/home /mnt
7th COMMAND: e2label /dev/seneca/home myhome
8th COMMAND: vgextend seneca /dev/sdb2
9th COMMAND: lvextend -L +1G /dev/seneca/home
10th COMMAND: resize2fs /dev/seneca/home
+------[ Volume Group (VG) - lvmdsk ]------+
| +--[ PV - hda1 ]---+ +--[ PV - hdb1 ]--+ |
| | PE PE PE PE PE PE| | PE PE PE PE PE | |
| +------------------+ +-----------------+ |
| | | | | |
| | | +-----------------+ | |
| | +----------------+ | |
| | | | | |
| +-[ LV - var ]-+ +-[ LV - home ]-+ |
| | LE LE LE LE | | LE LE LE LE | |
| +--------------+ +---------------+ |
+---------------------------------------------+
source: http://focalinux.cipsga.org.br/guia/inic_interm/ch-disc.htm
3. Steps to compile the linux kernel
1st make mrproper
2nd make oldconfig
3rd make menuconfig
4th make
5th make modules_install
4. '''Steps to reduce the LV (logical Volume)'''
1. To reduce the volume the file system has to reduced first.
In this example the original size of LV is 240 MB and we
have to reduce it by 200. Means the resulting LV size would be 40 MB
(a)File system has to unmounted before reducing
#umount /mnt
(b)make sure the file system is in consistence state before reducing
# fsck -f /dev/seneca/home
(c)reduce the size by 200MB
# resize2fs /dev/seneca/home 40M
(d)Now we can reduce the LV.
#lvreduce /dev/seneca/home -L 40M
PS: wrong values/parameters may render file system unavailable
ref:RHCE exam Book
