konecne som sa k tomu po dlhom case opat dostal..
na danom notebooku nejak hapruje CD mechanika. neda sa nabootovat, popripade po chvili nastartovaneho systemu system zatuhne a mechanika huciii.. z USB sa bootovat na tejto starej sune neda

tak som vymontoval HDD a pripojil k inemu notebooku cez USB. na stránke
Řešení problémů/Bootování som našiel, že je fajn pripojiť logy.
pripájam .xsession-errors
/etc/gdm/Xsession: Beginning session setup...
Setting IM through im-switch for locale=sk_SK.
Start IM through /etc/X11/xinit/xinput.d/all_ALL linked to /etc/X11/xinit/xinput.d/default.
(polkit-gnome-authentication-agent-1:1404): GLib-GObject-WARNING **: cannot register existing type `_PolkitError'
(polkit-gnome-authentication-agent-1:1404): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
GNOME_KEYRING_CONTROL=/tmp/keyring-lnuHwU
GNOME_KEYRING_CONTROL=/tmp/keyring-lnuHwU
SSH_AUTH_SOCK=/tmp/keyring-lnuHwU/ssh
GNOME_KEYRING_CONTROL=/tmp/keyring-lnuHwU
SSH_AUTH_SOCK=/tmp/keyring-lnuHwU/ssh
** (nm-applet:1476): DEBUG: old state indicates that this was not a disconnect 0
** (update-notifier:1429): DEBUG: --security-updates-unattended: 1
** (update-notifier:1429): DEBUG: Skipping reboot required
** (nm-applet:1476): DEBUG: going for offline with icon: notification-network-wireless-disconnected
** (nm-applet:1476): DEBUG: old state indicates that this was not a disconnect 0
XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"
after 31 requests (31 known processed) with 0 events remaining.
update-notifier: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"
after 13328 requests (13145 known processed) with 1 events remaining.
The application 'lxpanel' lost its connection to the display :0.0;
most likely the X server was shut down or you killed/destroyed
the application.
polkit-gnome-authentication-agent-1: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
pcmanfm: ../../src/xcb_io.c:385: _XAllocID: Assertion `ret != inval_id' failed.
nm-applet: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
je to jediny z danych logov kde je zjavna zmienka o chybe.
system by som nerad instaloval odznovu ak je tam iba nejaka blbost chyba.
dakujem za snahu