Linux and No boot directory(!!!!!)

[iNDE]

Afto einai ena apo ta pio trela pragmata pou exo dei se Linux server. Prosfata prospathisa na kano update ton Kernel se ena dedicated server kai eirtha adimetopos me kati provlimata lathous... mpika sto /boot na do ti pezetai kai giati den mporei na kanei install to RPM kai paratirisa to ekshs:

 

[root@server root]# cd /boot

[root@server root]# ls -la

total 0

 

Ma pou peige to boot? Ektos aftou den mporei na graftei tpt ekei mesa kai afeterou... deite kai to ekshs koufo:

 

[root@server boot]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/hda5 980M 214M 716M 23% /

/dev/hda1 45M 19M 24M 43% /boot

/dev/hda2 58G 5.0G 49G 10% /home

 

Nai to boot exei mesa 19Mb hahaha ... ok leo isos gia kapoio logo na egine unmount (eixe tixei mia fora paliotera)... deite ti leei meta apo mount/umount edoles:

 

[root@server boot]# umount -f /boot

umount2: Device or resource busy

umount: /dev/hda1: not mounted

umount: /boot: Illegal seek

kai

 

[root@server boot]# mount -t ext3 /dev/hda1 /boot

mount: /dev/hda1 already mounted or /boot busy

mount: according to mtab, /dev/hda1 is already mounted on /boot

 

Apistefto kai omos alithino?? Prosopika pistevo pos exei dimiourgithei kapio provlima ston skliro kai xreiazetai kanena allagma... exei kaneis kammia allh idea gia to ti pezei?

[Maniakos]

[root@server boot]# umount -f /boot

umount2: Device or resource busy

umount: /dev/hda1: not mounted

umount: /boot: Illegal seek

kai

 

[root@server boot]# mount -t ext3 /dev/hda1 /boot

mount: /dev/hda1 already mounted or /boot busy

mount: according to mtab' date=' /dev/hda1 is already mounted on /boot[/color']

 

 

Logiko na min borei na sto kanei unmount afou eisai mesa sto directory pou pas na kaneis unmount kai auto den ginetai. Ksanakanto alla na eisai se diaforetiko dir kai meta kanto pali mount.

[bigbrother]

Rixe kai ena 'lsof' na deis ti open files exeis sto directory......

[apoikos]

Το ότι δεν το έκανε mount / unmount, όπως είπε ο Maniakos κατά πάσα πιθανότητα οφείλεται στο ότι ήσουν μέσα στο dir (μπορεί έκτος από αυτό βέβαια να φταίει και κάτι άλλο). Αν κάνει κανονικά boot το μηχάνημα, τότε μάλλον ο δίσκος δεν έχει πρόβλημα (τουλάχιστον βλέπει τον πυρήνα), αλλά καλού-κακού κάνε ένα touch /forcefsck και reboot.

[iNDE]

Exm vgika sto / kai ekana mount/umount... apla me to paste pou ekana afisa to idio command prefix #.

 

bigbrother: to dokimasa to lsof alla den dixnei tpt pou na trexei mesa apo to boot. Outos i allos logiko einai na mhn exei open files ekei.

 

To mhxanhma prin kanei to teleytaio reboot htan ok... meta apo 10 meres eida ti pezontan. Shmera anakalipsa kai alla provlimata se arxeia kai diskusages Gmt einai kai remote o server kai den mporo na kano polla...

[Maniakos]

kanto reboot remotely kai des ti ginete. Molis er8ei back online kane ena dmesg gia na deis ama eginan mount ola properly stin ekinisi kai oti allo sxetiko 8es na deis.

[bigbrother]

kane "mount"

 

kai

 

"cat /etc/fstab"

 

kai kane copy paste se mas ti yparxei.

 

an deis oti synexizetai to programma bootare me linux cd kai kane mount to /dev/hda1 sto /mnt kai des an yparxoun arxeia.

 

Skefthkes mhpws na thn exeis pathsei me ena rootkit? [xereis ti einai? an oxi psaxe sto google]

 

epishs kane ena

 

lsof |grep /boot

 

mpas kai sou exei xefygei tipota.

[iNDE]

An kano reboot ton server den tha anoiksei tpt kata 99%. File bigbrother opos eipa kai parapano den ginetai mount kai o server einai remote... an htan edo tha tou eixa allaksei hdh skliro i kanena format. Anyway shmera parousiase kai alla provlimata opote tha allaxtei o skliros mallon klaps.

 

PS: to /boot den exei system-in-use files kai sto lsof den vgazei tpt tetoio.. logiko kiolas.

 

Anyway thanks se olous gia thn voithia