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 Forum index » Advanced Topics » Cutting edge » Multi-session live-CD/DVD
disc-swap upgrade issue(s)
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`f00


Joined: 06 Nov 2008
Posts: 809
Location: the Western Reserve

PostPosted: Thu 07 Mar 2013, 17:59    Post_subject:  disc-swap upgrade issue(s)
Sub_title: - add yours! -
 

A short background on disc-swap upgrade, I generally use iang's method - the 1st (usually larger) savedir made when "burning data from previous CD" is a merge of previous savedirs .. it pops the disc out, then you close the tray and hit enter/return<key> and it continues with writing your current session (what's in /initrd/pup_rw) as the 2nd savedir. Also, I reboot rather than shutdown/poweroff so I can do a shakedown on the upgrade - usually it works quite well if the versions are close, but details vary.

______disc-swap upgrade 'perils'

Sometimes a disc-swap upgrade (saving session from an older version like racy 5.3.90 to a fresh racy 5.4.91 disc - mostly I do multisession discs) seems to work quite well. But occasionally there are minor puzzles like the following..

On the less side, some oddness (see top two attached caps) with pmount and driveicons Confused pmount and driveicons were working well on the minimal shakedown session just after the disc-swap, but a reboot or two after and it's not quite so well on that front.

Fixing this took some fiddling about as illustrated in the rest of the caps. One of the joys of multisession disc - if I used a savefile things would be different Laughing
mountui.png
 Description   something is odd
 Filesize   36.32 KB
 Viewed   261 Time(s)

mountui.png

mountui2.png
 Description   hmm, more xerrs.log hints
 Filesize   40.73 KB
 Viewed   264 Time(s)

mountui2.png

5390probedisk2.png
 Description   how it was in racy 5.3.90
 Filesize   7.07 KB
 Viewed   178 Time(s)

5390probedisk2.png

5491probedisk.png
 Description   how it is in racy 5.4.91
 Filesize   6.12 KB
 Viewed   176 Time(s)

5491probedisk.png

layerissue.png
 Description   symlinks pointing to each other..
 Filesize   5.05 KB
 Viewed   175 Time(s)

layerissue.png

fix-a.png
 Description   part 1 of the fix..
 Filesize   7.73 KB
 Viewed   175 Time(s)

fix-a.png

fix-b.png
 Description   using the archive..
 Filesize   6.82 KB
 Viewed   170 Time(s)

fix-b.png

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Ted Dog


Joined: 13 Sep 2005
Posts: 2313
Location: Heart of Texas

PostPosted: Fri 08 Mar 2013, 16:46    Post_subject:  

probedisk had a major rewrite a short time ago, optical drives code has been replaced, also the dvd-session core functions where moved to /etc/init.rd/functins

I am unable to follow what he did, but I could tell the code to reburn DVD at shutdown is missing.
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