$ gethostip 1.2.3.4
1.2.3.4 1.2.3.4 010203047

This is useful for naming files in a pxelinux.cfg directory, for instance.

> grub-md5-crypt
Password:
Retype password:
$1$KnYGn/$wOAmKuQH3KP35XRjWiUpX/

Copy and paste to “rootpw –iscrypted” as appropriate.

rpm -q -a --queryformat='%{N}-%{V}-%{R}.%{arch}\n'

To flush the cache, you must run nscd with the “-i” flag instead of simply restarting it:


sudo nscd -i passwd -i group


Partition the disk using fdisk; we want the standard Linux partition id of “83″, so no need to modify that here:

# /sbin/fdisk /dev/sdc
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.
The number of cylinders for this disk is set to 1305.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-1305, default 1): (press enter to accept default)
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-1305, default 1305): (press enter to accept default)
Using default value 1305
Command (m for help): p
Disk /dev/sdc: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdc1 1 1305 10482381 83 Linux


On VMware, align the partition:

Command (m for help): x
Expert command (m for help): b
Partition number (1-4): 1
New beginning of data (63-83875364, default 63): 128


Write the partition table out to disk:


Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.


Format the partition as XFS, using the defaults:

# /sbin/mkfs.xfs /dev/sdc1
meta-data=/dev/sdc1 isize=256 agcount=16, agsize=163787 blks
= sectsz=512 attr=0
data = bsize=4096 blocks=2620592, imaxpct=25
= sunit=0 swidth=0 blks, unwritten=1
naming =version 2 bsize=4096
log =internal log bsize=4096 blocks=2560, version=1
= sectsz=512 sunit=0 blks, lazy-count=0
realtime =none extsz=4096 blocks=0, rtextents=0


The XFS partition is now set for use:

# mount /dev/sdc1 /depot

rpm2cpio file.rpm | cpio -id

Note that this will create a (local) directory tree under which the extracted files will be placed. In other words, expect the files to be extracted under a newly created “usr” directory or similar.

 > getfacl file.txt

To modify the ACL on a file:

 > setfacl -m user:rwx file.txt

To recursively change an ACL:

 > setfacl -R -m user:rwx .

To modify the default ACL for a directory:

 > setfacl -d -m user:rwx.

See the getfacl and setfacl man pages for more information.

• Press “e” while the GRUB screen to select a kernel version is displayed.
• Edit the kernel line, again by pressing “e”, to remove any references to “quiet” – it is generally at the end of the line, with “splash”.
• Edit the fifth line, below the “initrd” line – the “quiet” all by itself on a line – so that it is empty.

To permanently display boot messages, edit /boot/grub/menu.lst:

• Edit (but do not uncomment) the “defoptions” line so that it reads:

  # defoptions=splash

• Edit your default entry (defined with the default entry near the top of the file) as in the one-time steps, removing “quiet” in both locations.
• Reboot.