{"id":36,"date":"2012-10-27T19:13:43","date_gmt":"2012-10-27T19:13:43","guid":{"rendered":"http:\/\/honza.paws.cz\/?p=36"},"modified":"2013-01-24T19:22:47","modified_gmt":"2013-01-24T19:22:47","slug":"openwrt","status":"publish","type":"post","link":"http:\/\/honza.paws.cz\/?p=36","title":{"rendered":"OpenWRT"},"content":{"rendered":"

staAbychom nez\u016fst\u00e1vali jen u Ubuntu, m\u00e1m doma i star\u00fd po\u010d\u00edta\u010d, ve kter\u00e9m jsou nastrkan\u00e9 disky v LVM poli na ukl\u00e1d\u00e1n\u00ed fotek ze zrcadlovky a pak je\u0161t\u011b p\u0159ekl\u00e1p\u00ed DVB-T do LANu, i takto star\u00e9 Pentium III zvl\u00e1dne HD\u010dkov\u00fd multiplex 4, nahr\u00e1vat v\u0161ak dok\u00e1\u017ee pouze SD kan\u00e1ly. Vedle toho m\u00e1me D-Link DIR-825, kter\u00fd s p\u016fvodn\u00edm firmware funguje pouze jako router. Jen\u017ee kdy\u017e v\u00e1m na st\u0159echu daj\u00ed p\u011bkn\u00e9 5 GHz s\u00edte\u010dko se 400 MHz procesorem jako router, byla by hloupost znovu p\u0159ekl\u00e1dat. Nezbylo ne\u017e nasadit Linux a to nejprve DD-WRT, kter\u00e9 jsme vym\u011bnili za OpenWRT, kter\u00e9 vypad\u00e1 dosp\u011bleji a prost\u011b funguje. Dnes jsem \u0159e\u0161il, jak roz\u0161\u00ed\u0159it jeho 3 MB pam\u011b\u0165 pro instalaci bal\u00ed\u010dk\u016f na 16 GB flashdisk p\u0159ipojen\u00fd do USB hubu spolu s tisk\u00e1rnou, kter\u00e1\u017eto byla tak\u00e9 jedn\u00edm z p\u016fvodc\u016f p\u0159echodu. Koup\u00edte si toti\u017e krabi\u010dku s USB portem, ale v\u00fdrobce se u\u017e nepochlub\u00ed, \u017ee tisk\u00e1rna a spol. se zp\u0159\u00edstup\u0148uj\u00ed jedin\u011b pomoc\u00ed windowsovsk\u00e9ho klienta. Na\u0161e tisk\u00e1rna je v\u0161ak star\u00e1 stejn\u011b jako po\u010d\u00edta\u010d s Debianem a funguje dle n\u00e1lady, zpo\u010d\u00e1tku jsem samoz\u0159ejm\u011b nahr\u00e1l na DIR-825 bal\u00edk p910n, kter\u00fd p\u0159ekl\u00e1p\u00ed tiskov\u00e9 \u00falohy p\u0159\u00edmo tisk\u00e1rn\u011b. Na po\u010d\u00edta\u010di jsem mohl sledovat stavov\u00e9 hl\u00e1\u0161en\u00ed prob\u00edhaj\u00edc\u00edho tisku, pap\u00edr v\u0161ak nevylezl. N\u00e1sledovala snaha nainstalovat hplip \u010di cups a k tomu je t\u0159eba mnoho prostoru v \u00falo\u017ei\u0161ti.<\/p>\n

K nahrazen\u00ed syst\u00e9mov\u00e9ho \u00falo\u017ei\u0161t\u011b flashkou sta\u010d\u00ed n\u00e1sledovat n\u00e1vody ve wiki OpenWRT. Zejm\u00e9na http:\/\/wiki.openwrt.org\/doc\/howto\/extroot<\/a><\/p>\n

V bal\u00edku e2fsprogs<\/code> jsou n\u00e1stroje pro form\u00e1tov\u00e1n\u00ed disku.<\/p>\n

Flash disk se objev\u00ed pravd\u011bpodobn\u011b jako \/dev\/sda*<\/code>, ov\u011b\u0159\u00edte n\u00e1strojem fdisk -l<\/code>.
\nTen p\u0159ipoj\u00edte nap\u0159. do existuj\u00edc\u00ed slo\u017eky \/mnt\/sda1<\/code>. Zkop\u00edrujte sou\u010dasn\u00fd instalovan\u00fd software p\u0159\u00edkazem:
\ntar -C \/overlay -cvf - . | tar -C \/mnt\/sda1 -xf -<\/code><\/p>\n

Klik\u00e1tkem nebo editac\u00ed \/etc\/config\/fstab<\/code> nastavte p\u0159ipojen\u00ed sv\u00e9ho \/dev\/sda*<\/code> do \/overlay<\/code> a nastavte p\u0159\u00edznak is_rootfs<\/code>:<\/p>\n

config mount
\noption device \/dev\/sda1
\noption fstype ext3
\noption options rw,sync
\noption enabled 1
\noption enabled_fsck 0
\noption is_rootfs 1<\/code><\/p>\n

Pak reboot, a je hotovo, pokud vynd\u00e1te flashku, na\u010dte se p\u016fvodn\u00ed stav p\u0159ed p\u0159echodem, zkr\u00e1tka linuxov\u00e1 par\u00e1di\u010dka.<\/p>\n","protected":false},"excerpt":{"rendered":"

staAbychom nez\u016fst\u00e1vali jen u Ubuntu, m\u00e1m doma i star\u00fd po\u010d\u00edta\u010d, ve kter\u00e9m jsou nastrkan\u00e9 disky v LVM poli na ukl\u00e1d\u00e1n\u00ed fotek ze zrcadlovky a pak je\u0161t\u011b p\u0159ekl\u00e1p\u00ed DVB-T do LANu, i takto star\u00e9 Pentium III zvl\u00e1dne HD\u010dkov\u00fd multiplex 4, nahr\u00e1vat v\u0161ak dok\u00e1\u017ee pouze SD kan\u00e1ly. Vedle toho m\u00e1me D-Link DIR-825, kter\u00fd s p\u016fvodn\u00edm firmware funguje […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"_links":{"self":[{"href":"http:\/\/honza.paws.cz\/index.php?rest_route=\/wp\/v2\/posts\/36"}],"collection":[{"href":"http:\/\/honza.paws.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/honza.paws.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/honza.paws.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/honza.paws.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=36"}],"version-history":[{"count":1,"href":"http:\/\/honza.paws.cz\/index.php?rest_route=\/wp\/v2\/posts\/36\/revisions"}],"predecessor-version":[{"id":37,"href":"http:\/\/honza.paws.cz\/index.php?rest_route=\/wp\/v2\/posts\/36\/revisions\/37"}],"wp:attachment":[{"href":"http:\/\/honza.paws.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=36"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/honza.paws.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=36"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/honza.paws.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=36"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}