Re: Mount bzip2 disk image

On 14 September 2023 9:59:57 am AEST, Polytropon <freebsd@edvax.de> wrote:
 > On Wed, 13 Sep 2023 17:01:36 +0200, Andrea Venturoli wrote:
 > > On 9/13/23 15:28, Frank Leonhardt wrote:

 > > > The rest of the paragraph explains this would be decompressing
 > the bzip2 
 > > > image from tape (or other offline stream), so the actual disk
 > space 
 > > > would be about the same as having the bzip2 file on DASD.

 > > I'm not sure I understand what you mean...
 > > I have no tape.

 > DASD = Direct Access Storage Device, i. e., disks or SSDs,
 > also known as on-line storage ("D U,DASD,ONLINE", if you wish).
 > 
 > Yes, I am old. ;-)

So is Frank, if he speaks DASD.   These kids wouldn't know a mainframe if they tripped over the console unit  :)

 > > I only have internal HD storage, where the bzip2 image is and where
 > > I could decompress it (provided enough space would be free).
 > 
 > Do you have the change to temporarily add a sufficiently
 > big external disk, even if it's just a cheap 5 TB USB disk?
 > It won't be fast (as it's the speed limit of USB),

Even so, at least make sure it's USB 3.

 > but you
 > could then use the image file in the mentioned way of vnode
 > (mdconfig + mount -o ro + cp + umount), and afterwards you
 > have a nice big disk - a DASD - to your disposal... :-)

In t'olden days, DASDs looked more like washing machines than books ...

cheers, Ian