doc:appunti:linux:sa:if_rename
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doc:appunti:linux:sa:if_rename [2024/04/12 18:01] – [Debian 9 predictable network interface names] niccolo | doc:appunti:linux:sa:if_rename [2024/06/21 17:54] (current) – [Beware of initramfs image] niccolo | ||
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Name=lan0 | Name=lan0 | ||
</ | </ | ||
+ | |||
+ | ==== Beware of initramfs image ==== | ||
+ | |||
+ | :!: If you have some files in **/ | ||
+ | |||
+ | These files are considered by '' | ||
+ | |||
+ | So it is always advisable to **update the initramfs** whenever you update the content of **/ | ||
+ | |||
+ | < | ||
+ | update-initramfs -k all -u | ||
+ | </ | ||
+ | |||
+ | === How to unpack the iniramfs image to inspect its content === | ||
+ | |||
+ | In **Debian 12** the iniramfs image may be composed by two appended cpio archives. The first containing the Intel microcode in //ASCII cpio archive// format, and the second containing the actual initramfs as a //Zstandard compressed cpio archive//. To extract both, do the following: | ||
+ | |||
+ | Extract **the microcode part** (take note of the number of blocks printed on stderr): | ||
+ | |||
+ | < | ||
+ | cat / | ||
+ | 14080 blocks | ||
+ | </ | ||
+ | |||
+ | Make a copy of **the initramfs part** stripping the microcode and decompress it: | ||
+ | |||
+ | < | ||
+ | dd if=/ | ||
+ | unzstd initramfs.img.zst --stdout | cpio --extract --make-directories | ||
+ | </ | ||
==== NetworkManager interfering with rename ==== | ==== NetworkManager interfering with rename ==== | ||
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:!: **ATTENZIONE**: | :!: **ATTENZIONE**: | ||
- | :!: **ATTENZIONE**: | + | :!: **ATTENZIONE**: |
===== Debian 9 Network Interface Naming ===== | ===== Debian 9 Network Interface Naming ===== |
doc/appunti/linux/sa/if_rename.1712937683.txt.gz · Last modified: 2024/04/12 18:01 by niccolo