[2024-feb-29] Sad news: Eric Layton aka Nocturnal Slacker aka vtel57 passed away on Feb 26th, shortly after hospitalization. He was one of our Wiki's most prominent admins. He will be missed.
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| — | howtos:slackware_admin:recovery_boot_option [2012/09/25 01:54 (UTC)] (current) – moved from general howtos section mfillpot | ||
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| + | <!-- Add your text below. We strongly advise to start with a Headline (see button bar above). --> | ||
| + | ====== Setting up a Recovery Boot Option ====== | ||
| + | ===== Overview and Purpose ===== | ||
| + | Currently most Linux based distributions install a recovery/ | ||
| + | option and a memory test option in the default bootloader. | ||
| + | While Slackware does not install such options by default, | ||
| + | they can be easily added to any system. | ||
| + | |||
| + | The recovery prompt that will be installed in this tutorial | ||
| + | will be an on-disk option to enter the Slackware usbboot image. This image | ||
| + | currently includes a basic command line mode that is used to fix | ||
| + | boot issues, the capability to run the setup application for new Slackware | ||
| + | installations and access to the memtest86 application. | ||
| + | |||
| + | ===== File Preparation ===== | ||
| + | - Before you begin to make changes to your system you will need to obtain the file '' | ||
| + | - Enter the root prompt by issuing the command **//su//** or signing into the system as the root user. | ||
| + | - Mount the '' | ||
| + | - Create a separate directory in your ''/ | ||
| + | - Copy the files from the '' | ||
| + | - Unmount the mounted usbboot.img file by issuing the command< | ||
| + | |||
| + | ===== lilo Configuration ===== | ||
| + | |||
| + | < | ||
| + | |||
| + | In those cases you can either upgrade lilo (which may not be possible) or enter the standard prompt from within an installation CD, DVD or USB stick. | ||
| + | </ | ||
| + | |||
| + | Before we begin modifying the lilo configuration you must first | ||
| + | understand why the various options are being used. | ||
| + | * **image** points to the kernel image which will be booted. | ||
| + | * For 32-bit Slackware the options are **hugesmp.s** and **huge.s**. | ||
| + | * For 64-bit Slackware the only option is **huge.s**. | ||
| + | * **label** lists the label that will be presented for the option in the bootloader menu. | ||
| + | * **initrd** lists the initial RAM disk that is used to load the temporary file system. | ||
| + | * **password**, | ||
| + | * **read-only** is used to tell the system to mount the file system as read-only. | ||
| + | |||
| + | Using your favorite text editor modify the ''/ | ||
| + | < | ||
| + | label = slackware-recovery | ||
| + | initrd = / | ||
| + | password = newpassword | ||
| + | read-only | ||
| + | </ | ||
| + | |||
| + | Once the new entry has been applied and saved in '' | ||
| + | < | ||
| + | root@darkstar: | ||
| + | Added linux * | ||
| + | Added recovery | ||
| + | </ | ||
| + | |||
| + | Since passwords are being applied within the ''/ | ||
| + | < | ||
| + | |||
| + | ===== Adding a memtest Option ===== | ||
| + | The memtest option can currently be executed through the recovery command line prompt by issuing the command '' | ||
| + | |||
| + | We will assume that you have already followed the instructions above to create a recovery option, if the instructions were not followed you can follow the basic steps above but only copy the file called '' | ||
| + | |||
| + | |||
| + | If you followed the recovery option instructions above, the memtest | ||
| + | binary will already be present in the ''/ | ||
| + | |||
| + | The file memtest will be referenced as the **image** for a new lilo entry as shown below. | ||
| + | < | ||
| + | image = / | ||
| + | label = memtest | ||
| + | password = newpassword | ||
| + | read-only | ||
| + | </ | ||
| + | |||
| + | Once the new lilo entry has been saved and the **// | ||
| + | < | ||
| + | root@darkstar: | ||
| + | Added linux * | ||
| + | Added recovery | ||
| + | Added memtest | ||
| + | </ | ||
| + | |||
| + | |||
| + | ====== Sources ====== | ||
| + | <!-- If you are copying information from another source, then specify that source --> | ||
| + | <!-- * Original source: [[http:// | ||
| + | <!-- Authors are allowed to give credit to themselves! --> | ||
| + | * Originally written by [[wiki: | ||
| + | <!-- * Contributions by [[wiki: | ||
| + | |||
| + | <!-- Please do not modify anything below, except adding new tags.--> | ||
| + | <!-- You must remove the tag-word " | ||
| + | {{tag> | ||
