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bulletbill22
n00b
Joined: 15 Oct 2022
Posts: 34
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 Posted: Thu Jul 11, 2024 6:07 pm Post subject: Using usr/gen_initramfs.sh to create initramfs_list? |
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I am trying to follow along and understand this tutorial: https://wiki.gentoo.org/wiki/Custom_Initramfs#External_file_list
It suggests | Code: | | usr/gen_initramfs.sh /usr/src/initramfs | tee ../initramfs.list |
as an apparant means of generating an initramfs_list file, then using | Code: | | usr/gen_init_cpio ../initramfs.list > ../initramfs.cpio |
to create the actual cpio file.
However, invoking usr/gen_initramfs.sh does not create an initramfs_list file, it creates a cpio file. I can see no option to generate an initramfs_list file. |
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pietinger
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Joined: 17 Oct 2006
Posts: 5050
Location: Bavaria
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| Posted: Thu Jul 11, 2024 8:48 pm Post subject: Re: Using usr/gen_initramfs.sh to create initramfs_list? |
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| bulletbill22 wrote: | | However, invoking usr/gen_initramfs.sh does not create an initramfs_list file, it creates a cpio file. I can see no option to generate an initramfs_list file. |
There is no option to create an initramfs-List file ... you always have to write it yourself. Maybe this article might help to understand it better:
https://wiki.gentoo.org/wiki/User:Pietinger/Tutorials/Initramfs_Overview
(chapter 3 shows all 4 ways to create an initramfs manually)
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pjp
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Joined: 16 Apr 2002
Posts: 20476
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| Posted: Thu Jul 11, 2024 9:51 pm Post subject: Re: Using usr/gen_initramfs.sh to create initramfs_list? |
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| bulletbill22 wrote: | | However, invoking usr/gen_initramfs.sh does not create an initramfs_list file, it creates a cpio file. I can see no option to generate an initramfs_list file. |
I think the confusion comes from a poor choice of wording... | Quote: | | Instead of creating the list manually, the cpio list and archive can be generated by two tools that are provided by the kernel source files. |
"the cpio list and" does seem to imply that it will create the list. What I _think_ is meant, is that it automatically creates it's own "internal" list, not a list for use by users.
When I follow the given instructions, the created archive file contains what could have been put in a list created by the user. For this to work, the files need to be manually copied to the destination directory, or /usr/src/initramfs/<appropriate subdirectories> per the used example.
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bulletbill22
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Joined: 15 Oct 2022
Posts: 34
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| Posted: Fri Jul 12, 2024 6:57 am Post subject: |
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| Quote: | root #usr/gen_initramfs.sh /usr/src/initramfs | tee ../initramfs.list
#####################
# /usr/src/initramfs
# Last modified: 1544312413.9519881540
dir /bin 755 0 0
file /bin/busybox /usr/src/initramfs/bin/busybox 755 0 0
dir /dev 755 0 0
nod /dev/console 600 0 0 c 5 1
nod /dev/null 666 0 0 c 1 3
nod /dev/sda1 660 0 6 b 8 1
nod /dev/tty 666 0 5 c 5 0
dir /etc 755 0 0
file /init /usr/src/initramfs/init 744 0 0
dir /lib64 755 0 0
dir /lib 755 0 0
dir /mnt 755 0 0
dir /mnt/root 755 0 0
dir /proc 755 0 0
dir /root 700 0 0
dir /sbin 755 0 0
dir /sys 755 0 0
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This implies to me that the output of the command | Code: | | usr/gen_initramfs.sh /usr/src/initramfs | tee ../initramfs.list |
is | Code: | #####################
# /usr/src/initramfs
# Last modified: 1544312413.9519881540
dir /bin 755 0 0
file /bin/busybox /usr/src/initramfs/bin/busybox 755 0 0
dir /dev 755 0 0
nod /dev/console 600 0 0 c 5 1
nod /dev/null 666 0 0 c 1 3
nod /dev/sda1 660 0 6 b 8 1
nod /dev/tty 666 0 5 c 5 0
dir /etc 755 0 0
file /init /usr/src/initramfs/init 744 0 0
dir /lib64 755 0 0
dir /lib 755 0 0
dir /mnt 755 0 0
dir /mnt/root 755 0 0
dir /proc 755 0 0
dir /root 700 0 0
dir /sbin 755 0 0
dir /sys 755 0 0 |
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