fast command:
try with
#mdadm -As /dev/md0
#mdadm --stop /dev/md0 #mdadm --assemble --force /dev/md0 /dev/sda1 /dev/sdb1 /dev/sdc1
good look
I must remember how to conver deb package from 32 bit to 64 bit:
This are the steps
date i seguenti comandi
sudo fakeroot alien --to-tgz epson-alc1100-filter_1.2-1_i386.deb
sudo fakeroot alien --to-tgz epson-alc1100-filter-cups_1.2-1_i386.deb
and
sudo fakeroot alien --to-deb epson-alc1100-filter-1.2.tgz
sudo fakeroot alien --to-deb epson-alc1100-filter-cups-1.2.tgz
I need fakeroot and alien packages.
This are the steps:
install qemu for test usb disk
apt-get install qemu-kvm
Download freedos
wget http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/1.0/fdbasecd.iso
Format your key usb
sudo mkfs.msdos /dev/sdx1
sdx is your partition
Attention!!!
sudo qemu -boot d -m 512 -cdrom /path/fdbasecd.iso -hda /dev/sdx
sdx must be entire usb disk device
Press 1
Press 1
Choise your languages
Press 5 (Run FreeDOS from CD-ROM)
TYPE into DOS SHell
a:
sys c:
That’s all
Close Qemu Window
only 2 file must be into c: : command.com and kernel.sys
unplug the usb stick and plug in again
copy your firmware into usb drive
Bye
1) Turn on virtual machine
2) open bash and type this command
dd if=/dev/zero of=/empty_file; rm /empty_file
3) shutdown virtual machine
4) mv name_disk.vmdk name_disk-unshrinked.vmdk
5) vmware-vdiskmanager -r name_disk-unshrinked.vmdk -t 0 name_disk.vmdk
6) rm -f name_disk-unshrinked.vmdk
I’ve Virtual Machine called “maps” and i want change into “mapsnew”
0) shutdown the virtual machine
For first i backup the directory 
1) cp -arx maps/ maps.backup/
2) cd maps/
3) vmware-diskmanager -n maps.vmdk mapsnew.vmdk
4) i rename all file called maps into mapsnew
5) into configuration file mapsnew.vmx change all reference maps into mapsnew (this is possible use also sed command: sed -i ‘s/maps/mapsnew/g’ mapsnew.vmx
Bye…
Original Link
tar cvjf - directory/ | split -d -b 4G - filename.tar.bz2.
If you want to restore the file, first copy all te parts in one directory, and then type
cat filename.iso.tar.gz.* | tar xvzf -
install package openvpn
cp /usr/share/doc/openvpn/server.conf /etc/openvpn
cp /usr/share/doc/openvpn/examples/easy-rsa/2.0 /etc/openvpn
cd /etc/openvpn/easy-rsa/2.0/
type the command
source ./vars
./clean-all
./build-ca
You will be asked to answer the questions you filled up top.
./build-key-server server
You will have to answer the same questions above. It will ask you for a password, I suggest you don’t put a password when it ask.
Click yes to sign the certificate.
Now to build the client files.
Type
./build-key client1
Next you will want to type ./build-dh
cd /etc/openvpn/
vim server.conf
/etc/init.d/openvpn start
I’ve 2 disk 1T.
I partitioned the disk in this way:
fdisk /dev/sdx
This is a sequence of command in fdisk
n
p
1
+500G
t
8e
… ecc … and in this way i created 3 partition primary and 3 partition in the extended area
500G 256G 124G 64G 32G 32G
Now i must clone the partition table in the second disk
sfdisk -d /dev/sdx | sfdisk /dev/sdy
I crete the device raid md0
mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdx /dev/sdy
add the md0 in phisical lvm
pvcreate /dev/md0
group lvm
vgcreate backup-raid /dev/md0
logical volume
lvcreate -L+500G -n backupRaid backup-raid
format the new raid area
mkfs.ext4 -j /dev/backup-raid/backupRaid
Configure mdadm.conf
mdadm --detail --scan >> /etc/mdadm/mdadm.conf
Create a mount point
mkdir /media/backup
and modify /etc/fstab
/dev/mapper/backup--raid-backup--raid /media/backup ext4 rw 0 0
and now…
reboot for check if all this ok
Bye Bye
sorry for my english…
Feel free correct any word of this article… Bye
This is a sequence of command that i use in “chimera” for create a swap space variable with lvm.
Turnoff swap area
swapoff -a
I prepare my swap space with lvm
fdisk /dev/sdx
pvcreate /dev/sdxy (x is letter of your disk and y is number partition)
vgcreate swap /dev/sdxy
lvcreate -L+4G swap swap
now format partition
mkswap /dev/swap/swap
Turn on swap area
swapon -a
Check free memory swap
free -m
If the area swap not turn on i resolved in this way
I check the UUID for new swap area
blkid -c /dev/null | grep swap
Write in /etc/fstab the uuid mount the swap area
UUID=ff049cd2-b1a9-ff4a-9722-651b52beeda1 none swap sw 0 0
Write in /etc/initramfs-tools/conf.d/resume
RESUME=UUID=ff049cd2-b1a9-ff4a-9722-651b52beeda1
now
update-initramfs -u
and……
reboot
Bye bye bye
Sorry for my english…… You feel free for correct any word of this article.
Comando magico bash per controllare quale directory occupa piu’ spazio all’interno del nostro hd:
du -sch *
