Difference between revisions of "Linux how to"
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==How to extend an xfs filesystem== | ==How to extend an xfs filesystem== | ||
* xfs filesystems must be mounted to be extended. There is no need to unmount | * xfs filesystems must be mounted to be extended. There is no need to unmount | ||
| − | * usually an xfs fileystem occupies all of its logical volume so the extension of a filesytem involves first the expansion of the logical volume | + | * usually an xfs fileystem occupies all of its logical volume so the extension of a filesytem involves first the expansion of the logical volume and then the extension of the filesystem |
:* expanding the logical volume | :* expanding the logical volume | ||
::* lvextend -L +5G /dev/Volume00/data-lv00 - this will add 5GB on logical voluem /dev/Volume00/data-lv00 | ::* lvextend -L +5G /dev/Volume00/data-lv00 - this will add 5GB on logical voluem /dev/Volume00/data-lv00 | ||
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More on how to operate the Logical Volume Manager (LVM) is found [http://www.tldp.org/HOWTO/LVM-HOWTO/ here] | More on how to operate the Logical Volume Manager (LVM) is found [http://www.tldp.org/HOWTO/LVM-HOWTO/ here] | ||
| + | |||
| + | ==How to extend an ext3 file system== | ||
| + | ''Note: A mounted ext3 file system cannot be extended. Unmount it before proceeding.'' | ||
| + | :* Unmount the file system | ||
| + | :* expand the logical volume containing the file system | ||
| + | ::* lvextend -L +2G /dev/Volume00/lvol00 - this will add 2GB on logical voluem /dev/Volume00/lvol00 | ||
| + | :* do an fsck on the file system (this is required) | ||
| + | ::* e2fsck /dev/Volume00/data-lv00 | ||
| + | :* extend the filesystem to the logical volume limits | ||
| + | ::* resize2fs /dev/Volume00/data-lv00 | ||
| + | :* remount file system | ||
==How to install java== | ==How to install java== | ||
Revision as of 11:36, 23 March 2006
Practical instructions on how to go about doing things in Linux. This is about the Fedora Linux.
How to extend an xfs filesystem
- xfs filesystems must be mounted to be extended. There is no need to unmount
- usually an xfs fileystem occupies all of its logical volume so the extension of a filesytem involves first the expansion of the logical volume and then the extension of the filesystem
- expanding the logical volume
- lvextend -L +5G /dev/Volume00/data-lv00 - this will add 5GB on logical voluem /dev/Volume00/data-lv00
- xfs_growfs /NewFS - this will extend the filesystems on the previously extended LV to occupy it completely. The filesystem is mounted on /NewFS in this case.
More on how to operate the Logical Volume Manager (LVM) is found here
How to extend an ext3 file system
Note: A mounted ext3 file system cannot be extended. Unmount it before proceeding.
- Unmount the file system
- expand the logical volume containing the file system
- lvextend -L +2G /dev/Volume00/lvol00 - this will add 2GB on logical voluem /dev/Volume00/lvol00
- do an fsck on the file system (this is required)
- e2fsck /dev/Volume00/data-lv00
- extend the filesystem to the logical volume limits
- resize2fs /dev/Volume00/data-lv00
- remount file system
How to install java
- 1. Download the latest JDK version from Sun. Choose the "Linux self-extracting file" version (not the RPM version).
- 2. Make sure the "rpm-build" package is installed:
yum install rpm-build
- 3. Move the JDK to the RPM Building Source directory:
mv jdk-* /usr/src/redhat/SOURCES/
- 4. Download the Source RPM from JPackage. Make sure you choose the same version as the JDK you downloaded in step 1.
- 5. Build the Java RPM using the file that you just downloaded:
rpmbuild --rebuild java-*src.rpm
- 6. After the build the RPMs can be founf in /usr/src/redhat/RPMS/i586/. You can install them using yum:
yum -y localinstall /usr/src/redhat/RPMS/i586/java-1.5.0-sun-*
- 7. If you want to enable the Java plugin for your web browser do the following:
ln -s /usr/lib/jvm/jre/plugin/i386/ns7/libjavaplugin_oji.so /usr/lib/mozilla/plugins/
- 8. Make sure that the old X11 libraries are installed, or Java will crash your web browser:
yum install xorg-x11-deprecated-libs