If you are installing CentOS or Red Hat Enterprise Linux on a machine without a DVD or CD drive, then your best option is to create a bootable USB drive. The Red Hat manual provides instructions for Linux, and it is simple to translate these instructions for Windows:
- Download dd for Windows, as well as
diskboot.img from your OS distribution media.
- Write the disk image to your USB drive using the command
dd if=diskboot.img of=\\.\x: --progress, where
x is the Windows drive letter of your USB drive. The
--progress flag is optional and lets you see that the records are actually copying to the USB drive.
If you want to write a command-line, windowless Linux application, but need to use the extended features of REBOL/View, such as DLL access, then you are unfortunately out of luck. Attempting to run REBOL in a console results in the following error:
[root@dot ~]# ./rebol -ivwt
** User Error: Bad face in screen pane!
** Near: size-text self
The only alternative seems to be to purchase a commercial license for REBOL/SDK.
It is sometimes useful to backup a single table from a MySQL database and re-load it on a different database. You can do so with the following operations:
mysqldump original_db table_name > table.sql
mysql new_db < table.sql
I’m not sure why I’m getting this from within a VMWare session when running MySQL Cluster:
WARNING: timerHandlingLab now: 4194521 sent: 4194399 diff: 122
2010-02-01 18:05:14 [ndbd] INFO
-- Watchdog: User time: 7 System time: 52
2010-02-01 18:05:14 [ndbd] WARNING
-- Watchdog: Warning overslept 227 ms, expected 100 ms.
How can I increase the watchdog timer? This is definitely a problem that seems exclusive to running in a virtual machine, but I need to do so for simulation purposes.