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Operating Systems AIX Can I use mkdvd to create bootable DVD from mksysb on tape Post 303005850 by rbatte1 on Tuesday 24th of October 2017 05:11:19 AM
Old 10-24-2017
Yes, but it's messy and requires you to copy the file to disk first. Oh.

In theory you could position the tape by skipping forward 2 tape files (or is it 3?) and then using the drive as the parameter for the -m flag, but in practice I would expect this to fail. Give it a try though. You still need space to process it though (see below)

Is there a physical limitation on adding a disk? They are relatively cheap now.

Can you share the output from lsvg, lsvg -l rootvg? We might be able to work something. Also, the contents of /etc/exclude.rootvg and /image.data

The mkdvd eventually calls readcd with the-w flag (for write) which is rather bizarre, but it need enough space to have two copies of the image whilst it does it. The first is to extract the image in to, then the next is to rebuild making a bootable image to write as a single IO to the media.

Do you have another AIX server with a DVD-RAM drive that does have space?


I sadly no longer have access to AIX servers, but I will see what I can remember.



Kind regards,
Robin
 

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EJECT(1)						    BSD General Commands Manual 						  EJECT(1)

NAME
eject -- eject a floppy disk, cdrom or tape SYNOPSIS
eject [-fv] [-l | -L | -U] [-t device-type] [-d] device eject -n DESCRIPTION
The eject program ejects a medium from the specified device. It can also load a cdrom in the drive if this operation is supported by the hardware. The device argument specifies a device either by its full path name (identified by a /dev/ prefix), or by one of the built-in nicknames. If the medium contains a file system that is currently mounted, eject will attempt to unmount the file system before ejecting. The following options are available: -d Deprecated. -f Force the eject operation without attempting to unmount any file systems first. -l Load media in the drive (only supported for the cdrom device type). -L Lock the media into the drive (but see BUGS below). -n List the built-in nicknames on standard output. -t device-type Specify the device type. The argument must be one of diskette, floppy, cdrom, disk, or tape. This option is necessary when ejecting a device for which no built-in knowledge is available. -U Unlock the media from the drive. -v Display some of the actions taken on standard output. BUGS
Most disk drivers automatically lock the media on the first open and unlock it on the last close, making 'eject -L' almost useless, since when it closes the device, it gets unlocked again. BSD
October 6, 2001 BSD
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