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использование_загрузчика_grub
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использование_загрузчика_grub [2011/02/11 15:07] val removed |
использование_загрузчика_grub [2013/05/22 13:50] 127.0.0.1 внешнее изменение |
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| ===== Grub 2 ===== | ===== Grub 2 ===== | ||
| - | |||
| - | [[https://help.ubuntu.com/community/Grub2]] | ||
| - | |||
| - | [[https://help.ubuntu.com/community/WindowsDualBoot]] | ||
| ==== Управление параметрами ядра при загрузке ==== | ==== Управление параметрами ядра при загрузке ==== | ||
| Line 17: | Line 13: | ||
| - Press **Ctrl-x** to boot your system. | - Press **Ctrl-x** to boot your system. | ||
| - Your system will boot up to a passwordless root shell. | - Your system will boot up to a passwordless root shell. | ||
| - | - Type in **passwd username** where username is the username you lost the password for. | + | - Type in **passwd username** where username is the username you lost the |
| + | |||
| + | password for. | ||
| - Set your password. | - Set your password. | ||
| - Type in reboot. | - Type in reboot. | ||
| </code> | </code> | ||
| - | ==== Восстановление утерянного пароля ==== | + | ==== Управление параметрами ядра в конфигурации GRUB ==== |
| + | |||
| + | === Ubuntu === | ||
| + | [[https://help.ubuntu.com/community/Grub2]] | ||
| + | |||
| + | [[https://help.ubuntu.com/community/WindowsDualBoot]] | ||
| + | <code> | ||
| + | # cat /etc/default/grub | ||
| + | ... | ||
| + | GRUB_CMDLINE_LINUX_DEFAULT="quiet" | ||
| + | ... | ||
| + | |||
| + | # update-grub | ||
| + | </code> | ||
| + | |||
| + | ==== Варианты использования изменения параметров ядра ==== | ||
| + | |||
| + | === Восстановление утерянного пароля === | ||
| Добавить в параметры загружаемого ядра | Добавить в параметры загружаемого ядра | ||
| <code> | <code> | ||
| - | single | + | init=/bin/bash |
| + | </code> | ||
| + | После загрузки | ||
| + | <code> | ||
| + | # mount -o remount,rw / | ||
| + | # passwd | ||
| </code> | </code> | ||
| - | ==== Проблема "черного экрана" ==== | + | === Проблема "черного экрана" === |
| Добавить в параметры загружаемого ядра | Добавить в параметры загружаемого ядра | ||
| <code> | <code> | ||
| nomodeset | nomodeset | ||
| + | </code> | ||
| + | |||
| + | === Отображение процесса загрузки === | ||
| + | Убрать из параметров загружаемого ядра | ||
| + | <code> | ||
| + | quiet | ||
| </code> | </code> | ||
| Line 42: | Line 68: | ||
| - Press **e** for edit. | - Press **e** for edit. | ||
| - Highlight the line that begins “Ubuntu, KERNEL ………” and press **e**. | - Highlight the line that begins “Ubuntu, KERNEL ………” and press **e**. | ||
| - | - Go to the end of this line, add **rw init=/bin/bash** or add **single** and press enter. | + | - Go to the end of this line, add **rw init=/bin/bash** or add **single** and |
| + | |||
| + | press enter. | ||
| - Press **b** to boot your system. | - Press **b** to boot your system. | ||
| - Your system will boot up to a passwordless root shell. | - Your system will boot up to a passwordless root shell. | ||
| - | - Type in **passwd username** where username is the username you lost the password for. | + | - Type in **passwd username** where username is the username you lost the |
| + | |||
| + | password for. | ||
| - Set your password. | - Set your password. | ||
| - Type in reboot. | - Type in reboot. | ||
| Line 66: | Line 96: | ||
| title Ubuntu | title Ubuntu | ||
| root (hd0,1) | root (hd0,1) | ||
| - | kernel /boot/vmlinuz-2.6.24-16-server root=UUID=08931346-445f-4a43-b136-dcb96397b8c6 ro quiet splash | + | kernel /boot/vmlinuz-2.6.24-16-server |
| + | |||
| + | root=UUID=08931346-445f-4a43-b136-dcb96397b8c6 ro quiet splash | ||
| initrd /boot/initrd.img-2.6.24-16-server | initrd /boot/initrd.img-2.6.24-16-server | ||
| savedefault | savedefault | ||
использование_загрузчика_grub.txt · Last modified: 2019/02/21 15:39 by val
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