Dotaz: obnoveni smazaneho jadra

[k3rn3l]

Cus lidi, potrebuji poradit. Mam kubuntu 12.04 lts, vzhledel k nedostatku mista na system oddilu sem byl nucen neco smazat, takze jako obvykle sem v adresari boot smazal hafo starejch jader a nechal posledni. jenze tentokrat se to systemu nelibi a zrejme stale chce jet na tom smazanem starsim. nasel sem si navod jak na to nabootoval live cd s ubuntu 13.10 jenze nejde mi ty jadra doinstalovat porad to neco mele o dependecies a nebomuze ani ten parametr f. ted teda uz nevim co s tim :( Vadi ze mam live s ubuntu 13.10 a chci opravit kubuntu 12.04lts?

Daval sem do google "how to recover deleted kernel ubuntu" a prvni odkaz mi nasel toto http://askubuntu.com/questions/28099/how-to-restore-a-system-after-accidentally-removing-all-kernels

vysledek: ubuntu@ubuntu:~$ sudo su root@ubuntu:/home/ubuntu# mount /dev/sda1 /mnt root@ubuntu:/home/ubuntu# mount --bind /dev /mnt/dev root@ubuntu:/home/ubuntu# mount --bind /proc /mnt/proc root@ubuntu:/home/ubuntu# mount --bind /sys /mnt/sys root@ubuntu:/home/ubuntu# sudo chroot /mnt root@ubuntu:/# apt-get install linux-image-generic Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: linux-generic-pae : Depends: linux-headers-generic-pae (= 3.2.0.73.87) but 3.2.0.74.88 is to be installed linux-image-generic : Depends: linux-image-3.2.0-74-generic but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). root@ubuntu:/#

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Odpovědi

[2014]

Nabootovat z live CD a v chroot opravit systém. Obecnou radu dávám, protože sám nepoužívám Ubuntu.

[k3rn3l]

Chjo, tak mi nikdo neporadi co s timhle?

apt-get install linux-image-generic Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: linux-generic-pae : Depends: linux-headers-generic-pae (= 3.2.0.73.87) but 3.2.0.74.88 is to be installed linux-image-generic : Depends: linux-image-3.2.0-74-generic but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

[Wily]

Takže to mám chápat tak, že tam máš poslední jádro akorát GRUB ti bootuje to předposlední? Podle toho co jsi napsal, tak tvrdíš, že jsi smazal všechny krom posledního a systém chce předposlední.

[k3rn3l]

Nevim. Me je jedno jestli to bude bootovat posledni jadro. Nezalezi mi na presne verzi, hlavne kdyz mi to bude fungovat. Ve vsech moznostech vcetne recovery mi grub hlasi no such file.

Klidne at se to vsechno vymaze a nastavi vse na jedno jadro. Jsem ve stavu ze se dal jak do nabidky grubu nedostanu ani do recovery, proste je to uplne v ha...u.

Pripadne se muzu podivat co je presne v boot adresari za verzi nebo v nejakem configu pokud mne nekdo nasmeruje co mam hledat.

[Petr Šobáň]

No tak si v grubu vyber jádro které funguje - které na HDD máš.

Pokud tam žádné nemáš tak nabotovat z DVD a potom připojit FS a chroot a doinstalovat (přeinstalovat) patřičné balíčky které jsi zrušil - smazal.

[k3rn3l]

Willi: system mi VUBEC nebootuje, hlasi ze neexistuje soubor s jadrem, potrebuji proste system zprovoznit s jakymkoliv jadrem, mozna kvuli nedostatku mista nedoslo k spravnemu nahrazeni, kubuntu predtim hlasilo nutny restart a to dela vzdy kvuli zmene jadra

[Wily]

A zkoušel jsi grup update? To by ti mohlo říct co tomu chybí.

[Wily]

překlep je to grub

[Jendа]

takze jako obvykle sem v adresari boot smazal hafo starejch jader a nechal posledni

Normální člověk odstraní balíčky s jádrem. Smaže to i moduly, takže opravdu nějaké místo ušetří, neudělá si v systému bordel a navíc ho dpkg upozorní, pokud odstraňuje jádro, které je jediné bootovací.

hlasi ze neexistuje soubor s jadrem

A ten soubor opravdu neexistuje? Říkal jsi, že tam nějaké jádro máš. Proč mu jeho název nezadáš ručně?

[nobody]

po "sudo chroot /mnt" v navodu je potreba "sudo apt-get update" protoze to vypada ze chces instalovat neco co uz neni aktualni protoze system ma zastarale informace o obsahu repositaru, tim "... update" je aktualizujes... pokud to bude hlasit problem i pak tak pust to co radi "sudo apt-get -f install" na opravu naborenejch zavislosti

"vysledek" priste v prispevku obal do znacek PRE (predformatovano) aby nebyl splacanej dohromady:)

btw: smazat rucne jadra v /boot je prasarna, jednak si "spravce balicku" porad mysli ze je to nainstalovano, ale pro tebe hlavne smazane 1 jadro+init ti uvolni cca 40MB, ale zustanou ti ke kazdemu jadru moduly (pridavne ovladace) v /lib/modules 120MB :)
spravne a ciste je odinstalovat:

# vylistovani nainstalovanejch jader + hlavicky
dpkg -l | grep -e linux-image -e linux-headers

# odinstalovani verzi co uznas za nepotrebne napr. pro verzi 3.5.0-51
sudo apt-get remove linux-image-3.5.0-51-generic linux-image-extra-3.5.0-51-generic linux-headers-3.5.0-51 linux-headers-3.5.0-51-generic

# az/jestli prejdes na ubuntu 14.04lts, tak zde se odinstaluji starsi jadra jiz jednoduse
# automaticky se oznaci za nepotrebne starsi a ponechavaji se prvni a dve posledni
# a odeberou se automaticky pri odstranovani nepotrebneho
sudo apt-get autoremove

[Jendа]

Taky se dá místo získat pomocí localepurge (až gigabajt!) a balíčky na vyhození navrhne deborphan.

[nobody]

a smazat cache stazenejch instalovanejch/aktualizovanejch baliku: apt-get clean

[k3rn3l]

Ahoj, diky za obsahlou odpoved. Tak sem zkusil apt-get update a nevypada to dobre, hodne veci se mu nelibi, je to tak dlouhej log ze nebylo mozne zkopirovat jeho zacatek, no i tak to zkusim jet dal a uvidim, treba se to rozjede

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W: Failed to fetch http://ppa.launchpad.net/stebbins/handbrake-releases/ubuntu/dists/precise/main/source/Sources  Something wicked happened resolving 'ppa.launchpad.net:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/multiverse/binary-i386/Packages  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/main/i18n/Translation-en_US  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/main/i18n/Translation-en  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/main/i18n/Translation-cs  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/multiverse/i18n/Translation-en_US  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/multiverse/i18n/Translation-en  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/multiverse/i18n/Translation-cs  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/restricted/i18n/Translation-en_US  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/restricted/i18n/Translation-en  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/restricted/i18n/Translation-cs  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/universe/i18n/Translation-en_US  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/universe/i18n/Translation-en  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-security/universe/i18n/Translation-cs  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/restricted/binary-i386/Packages  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/main/binary-i386/Packages  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/multiverse/binary-i386/Packages  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/universe/binary-i386/Packages  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/main/i18n/Translation-en_US  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/main/i18n/Translation-en  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/main/i18n/Translation-cs  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ppa.launchpad.net/stebbins/handbrake-releases/ubuntu/dists/precise/main/binary-i386/Packages  Something wicked happened resolving 'ppa.launchpad.net:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ppa.launchpad.net/stebbins/handbrake-releases/ubuntu/dists/precise/main/i18n/Translation-en_US  Something wicked happened resolving 'ppa.launchpad.net:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ppa.launchpad.net/stebbins/handbrake-releases/ubuntu/dists/precise/main/i18n/Translation-en  Something wicked happened resolving 'ppa.launchpad.net:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ppa.launchpad.net/stebbins/handbrake-releases/ubuntu/dists/precise/main/i18n/Translation-cs  Something wicked happened resolving 'ppa.launchpad.net:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/multiverse/i18n/Translation-en_US  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/multiverse/i18n/Translation-en  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/multiverse/i18n/Translation-cs  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/restricted/i18n/Translation-en_US  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/restricted/i18n/Translation-en  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/restricted/i18n/Translation-cs  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/universe/i18n/Translation-en_US  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/universe/i18n/Translation-en  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/universe/i18n/Translation-cs  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

E: Some index files failed to download. They have been ignored, or old ones used instead.
root@ubuntu:/#

[Jendа]

Máš v /etc/resolv.conf blbě nastavený DNS server nebo vůbec nemáš síť.

[k3rn3l]

Diky chlapi, zitra s tim zkusim neco udelat a dam vedet co pomohlo.

[k3rn3l]

aha tak stupidni live cd ubuntu, se mi po suspendu pres noc nejak zblblo a ackoli mi to nacita stranky ve firefoxu tak

root@ubuntu:/# ping cesnet.cz ping: unknown host cesnet.cz

kurna jak tomu mam rict aby to umelo spravne resolvovat? klikacka na odpojit/zapojit sitovku nepomohlo, nic nepomaha. no asi bude rychlejsi to proste a jednoduse restartovat nez zkoumat jak to vyresit. jdu to restartnout a dam si zatim kafe :D

[pavlix]

Tak kafe není nikdy na škodu. Pokud jde o problé se sítí, tak může mít různé příčiny, pokud se ti to stane znovu, tak zkus dodat logy a obsah /etc/resolv.conf a taky ověř konektivitu pingem na IP, třeba na 8.8.8.8.

[k3rn3l]

sakra tak i po restartu me to neresolvuje. muzu na inet pres firefox ale nejde mi pingat

ubuntu@ubuntu:~$ cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1

kdyz sem zkusil to prepsat tim guglim nema to ucinek a v samotnem souboru upozornuji ze se to nema prepisovat :)

Respektive vypada to ze si system neumi nacist pri nacteni ip z dhcp dns nebo se o to dokonce nai nepokousi? ale jakto ze mi jednou stranky ve firefoxu? Muze vadit ze sem si predtim zmenil default root heslo pomoci passwd? To jak mi tu nekdo radil prepsanim gugli dns bylo k nicemu, zase se to prepise na 127.0.1.1 :(

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/restricted/i18n/Translation-cs  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/universe/i18n/Translation-en_US  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/universe/i18n/Translation-en  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ucho.ignum.cz/ubuntu/dists/precise-backports/universe/i18n/Translation-cs  Something wicked happened resolving 'ucho.ignum.cz:http' (-5 - No address associated with hostname)

E: Some index files failed to download. They have been ignored, or old ones used instead.
root@ubuntu:/# ping seznam.cz
ping: unknown host seznam.cz
root@ubuntu:/# 

[2014]

Edit the resolv.conf file

How do I add new nameservers

[pavlix]

muzu na inet pres firefox ale nejde mi pingat

Takže Firefox resolvuje a ping nikoli? To může znamenat ledacos včetně problémů v samotné síti.

Respektive vypada to ze si system neumi nacist pri nacteni ip z dhcp dns nebo se o to dokonce nai nepokousi?

Právě naopak, jestliže resolvuješ ve firefoxu, tak to pravděpodobně znamená, že DNS z DHCP máš nakonfigurované. Samozřejmě je tu relativní nedostatek informací, takže těžko říct.

To jak mi tu nekdo radil prepsanim gugli dns bylo k nicemu, zase se to prepise na 127.0.1.1 :(

Proto jsem ti to radši neradil. Když chceš měnit konfiguraci manuálně, měl bys vědět trochu víc než jen jak přepsat ten soubor. Podle mě narážíš na nějaký neobvyklý problém k jehož řešení je potřeba trochu víc skillů. Rád bych poradil, ale popravdě řečeno většinou potřebuju mít tyhle věci v ruce.

mole ~ # ping -c 1 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=58 time=9.10 ms

--- 8.8.8.8 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 9.105/9.105/9.105/0.000 ms
mole ~ # dig www.seznam.cz @8.8.8.8

; <<>> DiG 9.9.5 <<>> www.seznam.cz @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61904
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;www.seznam.cz.                 IN      A

;; ANSWER SECTION:
www.seznam.cz.          151     IN      A       77.75.76.3

;; Query time: 7 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sun Dec 14 15:54:23 CET 2014
;; MSG SIZE  rcvd: 58

mole ~ # dig www.seznam.cz

; <<>> DiG 9.9.5 <<>> www.seznam.cz
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41609
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;www.seznam.cz.                 IN      A

;; ANSWER SECTION:
www.seznam.cz.          300     IN      A       77.75.72.3

;; Query time: 18 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Sun Dec 14 15:54:34 CET 2014
;; MSG SIZE  rcvd: 58

Ještě se můžeš zkusit ptát toho lokálního nameserveru (@127.0.1.1 místo @8.8.8.8), nebo můžeš z logů vytáhnout jména nameserverů z DHCP a ptát se jich. Když budeš hodně zoufalý, můžeš zkusit digu přidat +noedns nebo +tcp.

[pavlix]

Tak vzhledem k tomu, že se ukázalo, že jsi špatně reportoval situaci, ve skutečnosti ti v live systému funguje DNS v pořádku, považuj komentář výše za bezpředmětný.

[Adamec]

echo nameserver 8.8.8.8 >> /etc/resolv.conf

[nobody]

teda to je hajzl to livecd, asi by jsi to mel reklamovat a zadat vraceni penez co jsi za to vyplacl... protoze takove svinarny jako ze livecd nema 100% funkcni suspend to se preci nedela, mozna by meli tvurce toho livecd zavrit nebo rovnou postrilet, v nejhorsim pripade by ti mel zorat cele pole za vodu a kousek tvrdeho chleba, co myslis ?

[k3rn3l]

no heled, ted sem zjistil ze to nefunguje i kdyz zadnej suspend nedavam, proste je problem s dns, tak babo rad :D nechapu ze mi jdou www ve firefoxu ale nejde pingat tudiz nejde ani dokoncit apt-get update :(

PROBLEM NENI V SUSPEND! ;) A ja ma opensource sw rad, windows uz nepouzivam 2 roky takze klid, to se clovek nemuze nastvat? Nikdy se ti nestane ze si na neco zanadavas? Jsi absolutni flegmatik? Ja to fakt neumim, tak promin no.

[pavlix]

Trollů si nevšímej ;).

[pavlix]

I když jestli je to ten stejný nobody, co postoval tu radu odinstalovat a čistě nainstalovat jádra, tak v tom ohledu bych ho naopak poslechl.

[nobody]

ano jsem to ten samej ja a ne nejsem troll, reagoval sem vecne na "stupidni live" ;)

[pavlix]

Jako máš pravdu, taky to na mě na první kouknutí zapůsobilo jako rudý hadr, ale když jsem v dalších komentářích viděl, jak tápe...

[nobody]

tak sem flegmatik to jo, ale kdyz porad vidim jak lidi nadavaj na neco co maji zadarmo, tak si obcas do nich rejpnu, mozna si nekdo z nich na koho to vyjde i uvedomi ze muze byt rad za to vse co naopak funguje :)

[pavlix]

Doporučuju koupit dostatečně velký disk a na něm udělat novou instalaci a přepínat se na roota pouze za účelem správy balíčků. A především nehrabat do vnitřností systému.

[lertimir]

+1

[k3rn3l]

clovece ja nesjem uplnej zacatecnik jak si asi myslis, to ze neznam do detailu zpusoby zavadeni systemu neznamena ze sem uplna lama. bezne si instaluju sw z prikazovyho radku, par prikazu znam, uplnej zacatecnik co vidi linux poprve v zivote vazne nejsem, tak semnou prosim nejednej jak s retardovanou babickou ktere nekdo nainstaloval ubuntu s tim "skvelym" unity (z toho mam osypky uz davno sem presel na KDE :))

[2014]

U mě, kdo ručně maže soubory jader (prasárna), i když by to šlo udělat přes správce balíčků, je u mě začátečník, a to ještě s špatnými návyky.

[pavlix]

clovece ja nesjem uplnej zacatecnik jak si asi myslis

Rozhodně na mě působíš jako člověk s nedostatkem zkušeností, jestliže mažeš systémové soubory ručně namísto odinstalování balíčků (a navíc s s tím pak nedokážeš poradit). Takže pokud máš pocit, že na tebe reaguju jako na lamu, tak si to pravděpodobně zasloužíš :).

[2014]

+1

[pavlix]

Neschopnost rozeznat, že konfigurační problém s DNS není v live systému, ale jen v chrootu rovněž ukazuje na nedostatek zkušeností. Na tom není nic špatného, každý byl někdy začátečník, důležité ovšem je si to umět přiznat a na základě toho postupovat, tedy především dělat všechny kroky pečlivě, nechat si na všechno dostatek času, a hlavně, každý problém, na který narazíš, řádně otestovat a izolovat, abys alespoň věděl, v jaké souvislosti se objevuje.

[k3rn3l]

ha tak sem na to prisel, musel sem vytvorit novej resolv.cong na tom chrootnutym oddilu, to mi nikdo nerekl ze to musim zmenit tam, ted uz to pinga tak jdu zkusit ten update

[pavlix]

to mi nikdo nerekl

Ty jsi nikomu neřekl, že ti resolving v tom live systému funguje a že ti nefunguje pouze v chrootu, takže se nemůžeš divit. Navíc je to standardní součást práce s chrootem, takže jsi buď postupoval podle špatného návodu, nebo jsi něco vynechal. Pokud bys v dotazu dobře specifikoval problém, dostal by si možná do hodiny odpověď, že máš zkopírovat /etc/resolv.conf ze systému do chrootu.

[k3rn3l]

tak update konecne stahuje, uvidim jestli ty jadra pujdou doinstalovat

mezi tim jeste poddotaz, jedno za cas se mi objevi hlaska kvuli ktere se prestane aktualizovat tor, nevite co s tim?

W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://deb.torproject.org precise Release: The following signatures were invalid: KEYEXPIRED 1409325681 KEYEXPIRED 1409325681 KEYEXPIRED 1409325681 KEYEXPIRED 1409325681

W: Failed to fetch http://deb.torproject.org/torproject.org/dists/precise/Release

[nobody]

dle navodu si aktualizuj key a pak nainstaluj balik deb.torproject.org-keyring kterej ti bude aktualizovat do budoucana key sam, neni nad to obcas kouknout do dokumentace :)

[k3rn3l]

hmm tak to asi vypada blbe coz? no uvidim co po restartu chjo...

root@ubuntu:/# apt-get install linux-image-generic
Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 linux-generic-pae : Depends: linux-headers-generic-pae (= 3.2.0.73.87) but 3.2.0.74.88 is to be installed
 linux-image-generic : Depends: linux-image-3.2.0-74-generic but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
root@ubuntu:/# 

root@ubuntu:/# apt-get -f install
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following extra packages will be installed:
  linux-generic-pae linux-image-generic-pae
The following packages will be upgraded:
  linux-generic-pae linux-image-generic-pae
2 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
5 not fully installed or removed.
Need to get 0 B/4,052 B of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]? y
Can not write log, openpty() failed (/dev/pts not mounted?)
Setting up initramfs-tools (0.99ubuntu13.5) ...
update-initramfs: deferring update (trigger activated)
Setting up linux-image-3.2.0-73-generic-pae (3.2.0-73.108) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
The link /initrd.img is a dangling linkto /boot/initrd.img-3.2.0-74-generic-pae
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.2.0-73-generic-pae /boot/vmlinuz-3.2.0-73-generic-pae
run-parts: executing /etc/kernel/postinst.d/dkms 3.2.0-73-generic-pae /boot/vmlinuz-3.2.0-73-generic-pae
Error! Bad return status for module build on kernel: 3.2.0-73-generic-pae (x86_64)
Consult /var/lib/dkms/virtualbox/4.1.12/build/make.log for more information.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.2.0-73-generic-pae /boot/vmlinuz-3.2.0-73-generic-pae
update-initramfs: Generating /boot/initrd.img-3.2.0-73-generic-pae
run-parts: executing /etc/kernel/postinst.d/pm-utils 3.2.0-73-generic-pae /boot/vmlinuz-3.2.0-73-generic-pae
run-parts: executing /etc/kernel/postinst.d/update-notifier 3.2.0-73-generic-pae /boot/vmlinuz-3.2.0-73-generic-pae
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.2.0-73-generic-pae /boot/vmlinuz-3.2.0-73-generic-pae
Generating grub.cfg ...
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.
Found linux image: /boot/vmlinuz-3.2.0-74-generic-pae
Found linux image: /boot/vmlinuz-3.2.0-73-generic-pae
Found initrd image: /boot/initrd.img-3.2.0-73-generic-pae
Found memtest86+ image: /boot/memtest86+.bin
done
Setting up linux-image-3.2.0-74-generic-pae (3.2.0-74.109) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.2.0-74-generic-pae /boot/vmlinuz-3.2.0-74-generic-pae
run-parts: executing /etc/kernel/postinst.d/dkms 3.2.0-74-generic-pae /boot/vmlinuz-3.2.0-74-generic-pae
Error! Bad return status for module build on kernel: 3.2.0-74-generic-pae (x86_64)
Consult /var/lib/dkms/virtualbox/4.1.12/build/make.log for more information.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.2.0-74-generic-pae /boot/vmlinuz-3.2.0-74-generic-pae
update-initramfs: Generating /boot/initrd.img-3.2.0-74-generic-pae

run-parts: executing /etc/kernel/postinst.d/pm-utils 3.2.0-74-generic-pae /boot/vmlinuz-3.2.0-74-generic-pae
run-parts: executing /etc/kernel/postinst.d/update-notifier 3.2.0-74-generic-pae /boot/vmlinuz-3.2.0-74-generic-pae
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.2.0-74-generic-pae /boot/vmlinuz-3.2.0-74-generic-pae
Generating grub.cfg ...
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.
Found linux image: /boot/vmlinuz-3.2.0-74-generic-pae
Found initrd image: /boot/initrd.img-3.2.0-74-generic-pae
Found linux image: /boot/vmlinuz-3.2.0-73-generic-pae
Found initrd image: /boot/initrd.img-3.2.0-73-generic-pae
Found memtest86+ image: /boot/memtest86+.bin
done
Setting up linux-image-generic-pae (3.2.0.73.87) ...
dpkg: dependency problems prevent configuration of linux-generic-pae:
 linux-generic-pae depends on linux-headers-generic-pae (= 3.2.0.73.87); however:
  Version of linux-headers-generic-pae on system is 3.2.0.74.88.
dpkg: error processing linux-generic-pae (--configure):
 dependency problems - leaving unconfigured
No apport report written because MaxReports is reached already
Processing triggers for initramfs-tools ...
update-initramfs: Generating /boot/initrd.img-3.2.0-74-generic-pae
Errors were encountered while processing:
 linux-generic-pae
E: Sub-process /usr/bin/dpkg returned an error code (1)

[Jendа]

Tohle jsem už potkal a nějak magicky jsem to opravil tak, že jsem všechny kernely odstranil (možná to nešlo přes apt-get, ale přes dpkg) a pak jeden nainstaloval znova. A pokud je to stroj bez PAE, tak se muselo přidat nějaké PPAčko.

[pavlix]

Pokud si dobře pamatuju, tak nadbytečná podpora PAE v kernelu ničemu nevadí.

[nobody]

nebyl to tento problem, ale do zaznamu :)
od urcite doby co se defaultni jadra buildej s pae, tak na cpu bez pae (resp. jde spise o PentiumM a CeleronM ktere pae maji, ale cpu to nehlasi) je/byl potreba doinstalovat fake-pae (kterej udelal to ze na /proc/cpuinfo povesil soubor s add flag pae), od jadra 3.13 je mozne pri bootu dat parametr forcepae (a fake-pae tedy uz netreba)

[pavlix]

Ujisti se, že máš aktualizovaný seznam balíků (býval to apt-get update) a pak bych asi pro jistotu aktualizoval buď celý systém nebo alespoň balíky, kterých se to týká. Možná zkus ty balíky i v tom chrootu komplet odinstalovat (pozor aby nesebraly moc závislostí) a znovu nainstalovat, kernel pro funkci chroot nepotřebuješ.

[k3rn3l]

tak i kdyz to uz nevypadalo moc nadejne a psalo to stejne dost erroru, tak se to kupodivu umoudrilo a uz sem v normalnim systemu, ted jeste budu odmazavat tak jak se to ma ty stare kernely vcetne modulu (teda nejsem si jist jak smazat ty moduly co patrily ke starym kernelum a ktere nebyly smazany systemem)

jinak asi pomohlo

apt-get update apt-get -f install

nicmene stale mam problem s tim ze mi to ukazuje 0bytes free, to jeste zkusim poresit dle rad vyse.

MAM DOTAZ: jde nejak trvale premistit TMP adresar a dalsi slozky aby byly v mem home ktery mam na jine partici? docela mi vadi ze mi to stale neco zaplnuje, mam dojem ze dokonce i flash videa co se tahaj pri spustenem youtube se ukladaj nekde v rootu a ne do home a to hned zaplacne vsecho. pak mi nejde spustit ani kratke video na FB, a dokonce ani malinkej soubor pres firefox nestahnu, protoze ho chce ukladat nekam do cache ktera (nevim proc) je nekde na rootu.

Naivne sem se domnival ze to ze si dam oddelene home od systemu na jinou partici zajisti i to ze se tam budou ukladat vsechny temp polozky.

JDE NEJAK zajistit aby se napr i aktualizace apod ukladaly do meho home? Ja si puvodne nastavit na system jen 10GB, nepocital sem s tim ze mi to neustale bude neco stazeneho nebo dokonce adobe flash videa zaplacavat.

Ted se mi kvuli tomu i uplne rozfrncal skype a pri spousteni mi spadne. to je ale zrejme i tim nulovym mistem. Zajimave je ze pres live distro mi to ukazovalo free space 240MB. Mam dojem ze je cast prostoru vyhrazena pro roota ale k cemu je to teda dobre?

[pavlix]

MAM DOTAZ: jde nejak trvale premistit TMP adresar a dalsi slozky aby byly v mem home ktery mam na jine partici?

Nevím, jestli je to úplně dobrý nápad. Není lepší celý disk uspořádat tak, aby to vyhovovalo, popřípadě použít LVM a alokovat jen kolik je potřeba a dále rozšiřovat (používám já), popřípadě použít btrfs a subvolumes (používají jiní)? Navíc doporučuju zkontrolovat zda náhodou /tmp není v tmpfs. Pokud ano, nemá přesouvání smysl. Pokud ne, a stroj má dost RAM, mohlo by mít smysl tu RAM takto použít.

Naivne sem se domnival ze to ze si dam oddelene home od systemu na jinou partici zajisti i to ze se tam budou ukladat vsechny temp polozky.

Pro spoustu software to půjde poladit nějakou proměnnou prostředí. Používat systém s nedostatkem prostředků, v tomto případě diskového prostoru, je krajně nestandardní situace.

JDE NEJAK zajistit aby se napr i aktualizace apod ukladaly do meho home?

Proč hledat složité řešení nad blbě rozloženým diskem? Nestačilo by udělat rozložení nanovo a tentokrát nějak rozumně?

Ted se mi kvuli tomu i uplne rozfrncal skype a pri spousteni mi spadne. to je ale zrejme i tim nulovym mistem.

Většina aplikací není na provoz bez volného diskového prostoru vůběc testovaná a někdy ani stavěná.

Mam dojem ze je cast prostoru vyhrazena pro roota ale k cemu je to teda dobre?

Právě k tomu, aby za roota všechno fungovalo, a bylo tak možné dát systém do kupy.

[nobody]

moduly od jader co si smazal rucne odinstaluj stejne jako sem psal jak odinstalovavat ciste, sice to treba zarve ze nenaslo vmlinuz v /boot, ale odinstaluje to moduly a nastavi balicky ze nejsou nainstalovane

je to sice trochu prasarna, ale oproti rucnimu mazani v boot je to cistoucke jak lilie :)

# vytvorit dir kam presouvat
mkdir /home/.pridavek

# zkopirovat na home oddil a pri uspechu smazat na puvodnim miste
sudo cp -a /tmp /home/.pridavek && sudo rm -fR /tmp/*

# nabindovat novej dir na puvodni misto
sudo mount --bind /home/.pridavek/tmp /tmp

#pro trvale reseni na konec /etc/fstab pridat:
/home/.pridavek/tmp /tmp none bind 0 0

v zavislosti na tom co si mel pusteno a co vyuzivalo /tmp, je mozne ze bude treba restart, protoze mozna neco muze blbnout, kdyz to pod rukama smazes a nenecha se presvedcit za chodu ze ma to same uz z home zpatky :)

celkem bych rozvazil co takto presunout na home oddil, mozna pokud jsou velke mysql db (/var/lib/mysql), rozsahlejsi weby (/var/www), uchovavaci tmp (/var/tmp), mozna to kde se ukladaji deb balicky pri instalaci/aktualizaci (/var/cache/apt/archives) - to je dir co se maze pri pouziti "apt-get clean", pripadne kdyz doinstalujes synaptic, tak ma v nastaveni/moznosti/soubory moznost vybrat ze docasne deb soubory se po nainstalovani mazou automaticky (ale nejdrive se tam ulozit musi, takze presunuti do home asi je vhodne) :) Pro analyzu co kde zabira nejvice doinstaluj pro pouziti v terminalu ncdu, nebo pro pouziti v grafice baobab

[lertimir]

já na analýzu toho co zabírá hodně používám Kdirstat. Mě ty koláčové grafy zvedají adrenalin, protože tam je tolik nevyužitého místa v tom poli a o tolik méně informací.

[Jendа]

Já používám ncdu (protože je textové a na serveru grafický udělátor instalovat nebudu…), případně na zděděných starých redhatech (kde není) rekurzivně du -sh *.