Kare bugun Grub2 tare da sunan mai amfani da kalmar wucewa (rubutu)

Tsarkuwa2 shine ingantaccen sigar Grub (GNU Grand Unified Bootloader), Linux bootloader wacce ta dawo a shekara ta 1999 sakamakon ci gaban Yoshinori Okuji, tare da tunanin samar da kayan aiki na Penguin da kayan aiki na zamani tun daga LILO, kodayake yana da kwanciyar hankali da tsaro, amma hakan baiyi ba bayar da hanyoyi da yawa don nan gaba. Saboda haka, Grub2 wani yanki ne mai mahimmanci na duka aikin da kuma tsaron kwamfutar mu, sabili da haka yana da mahimmanci ganin yadda zamu iya kula da waye, ta yaya kuma yaushe aka shiga shi.

Kamar yadda yawancin masu karatun mu zasu sani, Tsarkuwa2 Ana iya amintar da shi ta yadda zamu iya samun damar zabin ta kawai ta hanyar shigar da sunan mai amfani da kalmar wucewa, wani abu wanda tabbas bashi da iyaka kuma amma a kalla yana bamu tsaro kuma zai jinkirta abubuwa ga wadanda suke kokarin shiga ba tare da izini . zuwa Linux boot Loader. Kuma a cikin wannan sakon zamu gani yadda za a kare Grub2 tare da sunan mai amfani da kalmar wucewa (rubutu).

A hanya don tabbatar da yanayin mai amfani ɗaya, kazalika da Gaggawa da Ceto, cewa zai taimaka mana a cikin Ret Hat Enterprise Linux, Fedora ko CentOS 7, kuma wannan kawai yana buƙatar stepsan matakai kamar yadda zamu gani a ƙasa:

Da farko zamu shiga azaman mai gudanarwa (ko kuma mu ɗaga damarmu ta amfani da umarnin 'su') tunda zamu shirya tsarin Grub. Amma kafin wannan muna ƙirƙirar kwafin ajiyar fayilolin da ke kula da ita:

cp /boot/grub2/grub.cfg /boot/grub2/grub.cfg.original
cp /etc/grub.d/10_linux /etc/grub.d/10_linux.original

Yanzu mun buɗe fayil ɗin 10_linux:

sudo vi /etc/grub.d/10_linux

Kuma muna ƙara masu amfani masu amfani da kalmar shiga (maye gurbin waɗancan kalmomin da abin da muka zaɓa):

cat << EOF
set superusers="willy" password willy contraseñadewilly
EOF

Anan mai amfani da hankali zai sami kalmar sirri 'kalmar sirridewilly', kuma ya bayyana a cikin sashin 'superusers' saboda shine kadai zai iya samun damar shiga kowane menu na Grub, gyara su (ta hanyar latsa 'e') ko kuma ya kira yanayin layin umarnin sa (ta latsa 'c').

Yanzu muna samar da sabon Grub.cfg:

grub2-mkconfig --output=/tmp/grub2.cfg

Yanzu muna maye gurbin fayil ɗin sanyi na Grub tare da wannan wanda muka ƙirƙira:

mv /tmp/grub2.cfg /boot/grub2/grub.cfg

Shi ke nan, za mu iya sake farawa kuma idan muka ga allon Grub za mu iya danna 'e', ​​bayan haka za a nemi kalmar sirri da muka shigar a cikin fayil ɗin daidaitawa.