Cyclades AlterPath, User Manual

Page: 388 / 418

Troubleshooting
356
the other set of partitions. The environment variable
currentimage
is
changed so that the system boots from the new image.
• Do a network boot from the new image and then save it onto the removable
flash
The monitor command
net_boot
boots the image from the TFTP server
specified in the environment variables. After the image is downloaded by
network boot, the root filesystem is in the RAMDISK, and the image can
run even if there is no removable flash card is inserted.
From the command line, you can run the
create_cf
script with the
--doformat
option to automatically save the image in removable flash.
The script erases everything in the flash, partitions the flash, if necessary,
formats the partitions, and copies the files currently in the RAMDISK into
the corresponding image partitions. If the flash is already partitioned, you
can choose where the image is saved using the option
--imageN
.
Changing the Boot Image
If, for any reason, you want to change to another image from the current one,
if you have access to the Web Manager, you can use the Configuration >
System > Boot Configuration form in Expert mode to select the other image,
and then use the reboot button on the Management > Reboot form in Expert
mode to reboot the KVM.
You can use the Linux
bootconf
options if you do not have access to the
Web Manager. See “To Boot from an Alternate Image With bootconf” on page
356.
You can also boot in U-Boot monitor mode and use the available boot
commands. See “To Boot in U-Boot Monitor Mode” on page 358.
T
To Boot from an Alternate Image With
bootconf
1. Connect to the KVM from a terminal connected to the console port or
create a
telnet
or
ssh
connection, and log in as root.
2.
Enter the
bootconf
command.
#
bootconf