Linux

February 17, 2009

Disk Partitioning

Linux Tips - Disk Partitioning

Posted by pj at 09:12 PM | Comments (0)

June 11, 2006

LVM article

LinuxDevCenter.com: Managing Disk Space with LVM

Posted by pj at 06:55 PM

June 06, 2006

What Linux kernel version am I running?

echo `uname -r`

Posted by pj at 12:07 PM | Comments (0)

May 08, 2006

Partitioning and formatting a RAID disk post installation under Linux

You need to use the 'fdisk' command to create the partitions, for example:

- fdisk /dev/sda

- Type n to create the new partition.

- Select Primary

- Set up the partition size and accept the default start cylinder size then enter the size you wish to make the partition.

- Type p to review the partition table

- If everything is to your liking type w to write the changes and exit fdisk

- Reboot the system so the partition table is re-read.

- Then create the filesystem, for example, to create an ext 3 filesystem:

- Once the filesystem is created you need to mount it.

- Create a mount point:

mkdir /storage (or whatever)

- Now mount the new disk:

mount /dev/sda1 /storage

- Copy some files to the new mount point to verify it's working

If you want the new disk to come up on every reboot you need to make a label and add an entry to /etc/fstab:

- run the following command: umount /storage

- then run: e2label /dev/sda1 /storage

- open /etc/fstab in your preferred text editor and add the following line:

LABEL=/storage /storage ext3 defaults 1 2

- Save /etc/fstab

- Mount the new filesystem again by running:

mount /storage

Posted by pj at 04:10 PM | Comments (0)

April 05, 2006

The Unofficial Fedora FAQ

http://www.fedorafaq.org/

Posted by pj at 04:18 PM

March 13, 2006

Setting firewall rules on Fedora Core 4

Use the following utility:

system-config-securitylevel

Posted by pj at 12:25 PM

September 23, 2005

Broke my GRUB

I ran the Fedora up2date tool on my desktop against kernel packages today and broke GRUB so my machine wouldn't boot.

I used the installation disk to boot from, fired up rescue mode and typed the following:

grub
grub> root (hd0,2)
grub> setup (hd0)
grub> quit

Once I rebooted, this fixed things.

Posted by pj at 01:08 PM

September 09, 2005

File partition problems with Fedora Core 4 / Windows XP dual-boot installation

I've been having some difficulty getting Grub to see my Windows NTFS partition after I used partition magic to resize it and then DiskDruid as part of the Fedora install.

Grub wasn't seeing the Windows partition.

Disk /dev/sda: 160.0 GB, 160000000000 bytes
255 heads, 63 sectors/track, 19452 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1           7       56196    6  FAT16
/dev/sda2               8        9729    78091965    7  HPFS/NTFS
/dev/sda3   *        9730       19388    77585917+  83  Linux
/dev/sda4           19389       19452      514080   82  Linux swap / Solaris

This was because the Windows partition (/dev/sda2) was flagged as hidden.

Grub therefore didn't write this into the grub.conf file on installation

I used parted to switch the hidden setting off:

[root@fba-pc04 dev]# parted /dev/sda
GNU Parted 1.6.22
Copyright (C) 1998 - 2005 Free Software Foundation, Inc.
This program is free software, covered by the GNU General Public License.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
Public License for more details.

Using /dev/sda
(parted) print
Disk geometry for /dev/sda: 0.000-152587.890 megabytes
Disk label type: msdos
Minor    Start       End     Type      Filesystem  Flags
1          0.031     54.909  primary   fat16
2         54.910  76316.594  primary   ntfs        hidden
3      76316.594 152084.091  primary   ext3        boot
4     152084.092 152586.123  primary   linux-swap
(parted) set 2 hidden off
(parted) print
Disk geometry for /dev/sda: 0.000-152587.890 megabytes
Disk label type: msdos
Minor    Start       End     Type      Filesystem  Flags
1          0.031     54.909  primary   fat16
2         54.910  76316.594  primary   ntfs
3      76316.594 152084.091  primary   ext3        boot
4     152084.092 152586.123  primary   linux-swap
(parted)

I then changed the /boot/grub/grub.conf file as follows and it all now works:

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You do not have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /, eg.
#          root (hd0,2)
#          kernel /boot/vmlinuz-version ro root=/dev/sda3
#          initrd /boot/initrd-version.img
#boot=/dev/sda3
default=0
timeout=20
splashimage=(hd0,2)/boot/grub/splash.xpm.gz
hiddenmenu
title Fedora Core (2.6.11-1.1369_FC4smp)
        root (hd0,2)
        kernel /boot/vmlinuz-2.6.11-1.1369_FC4smp ro root=LABEL=LINUX rhgb quiet
        initrd /boot/initrd-2.6.11-1.1369_FC4smp.img
title Fedora Core-up (2.6.11-1.1369_FC4)
        root (hd0,2)
        kernel /boot/vmlinuz-2.6.11-1.1369_FC4 ro root=LABEL=LINUX rhgb quiet
        initrd /boot/initrd-2.6.11-1.1369_FC4.img
title Windows XP
        map (hd0,0) (hd0,1)
        map (hd0,1) (hd0,0)
        rootnoverify (hd0,1)
        chainloader +1

This was quite useful for explaining the syntax in the grub.conf file:

- http://www.tldp.org/HOWTO/Linux+Win9x+Grub-HOWTO/proc.html#AEN54

Posted by pj at 11:33 AM

November 15, 2004

Guide to a Linux iTunes Server | Linux Gazette

Guide to a Linux iTunes Server | Linux Gazette

Posted by pj at 11:41 AM