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Please tell me which image I need to choose?

(28 posts) (3 voices)

• Started 6 months ago by Swarm
• Latest reply from Swarm
• This topic is not a support question

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1. 

   Swarm
   

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   Thank you, but you have too high of an opinion about my Linux knowledge! :)
   1) I formatted the USB to Fat32 and extracted the downloaded archive "3.16.55-pae.zip" onto it.
   2) I booted from the "slitaz-rolling-core64.iso" image and mounted the USB to /mnt.
   3) I executed the following commands:
   tazpkg -i /path/to/3.16.55-pae/linux-3.16.55.tazpkg --forced
   tazpkg -b linux
   tazusb writefs lzma rootfs.gz

   see screens...

   and about this:
   Modify the (or create a new) entry in the GRUB2 menu as this:

   menuentry "SliTaz Rolling - Console" {
   set root=(hd0,gpt5)
   linux /boot/vmlinuz-3.16.55-slitaz
   initrd /boot/rootfs.gz
   }
   Question: To complete this step, should the created files be copied with replacement into the "slitaz-rolling-core64.iso" ISO image or directly injected into Grub2?
   "I tried doing it that way, but it doesn't work! It gives me the following error message:" server not specified...

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   Posted 6 months ago #
2. 

   Swarm
   

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   .

   Posted 6 months ago #
3. 

   Ceel
   

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   Hey, no problem with your Linux knowledge, you've done all right!
   Now, just copy the vmlinuz-3.16.55-slitaz and the new rootfs.gz files in the same place the SliTaz ISO you use for the first boot is.
   I guess you have another ditro installed. Then always edit the GRUB2 menu using /etc/grub.d/40_custom file.

   Though, a detail: you used slitaz-rolling-core64.iso to start... It would be better to use slitaz-rolling.iso and load rootfs4.gz in the initrd line of the menu (the slitaz-rolling.iso has 4 rootfs). The rootfs.gz generated with Tazusb will be only ~15MB instead of 56MB and the boot will be much quicker. I suggest you do it again.

   Posted 6 months ago #
4. 

   Swarm
   

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   "Now, just copy the vmlinuz-3.16.55-slitaz and the new rootfs.gz files in the same place the SliTaz ISO you use for the first boot is." - I don't understand this line! Do I need to insert the files named "vmlinuz-3.16.55-slitaz" and "rootfs.gz" that were I created yesterday into the ISO image,
   in my case, it's "slitaz-rolling.iso"?

   I know how to extract a content of an ISO image! To me, need to mount the ISO image to a folder and copy the contents to another folder - it's easy!
   But I don't know how to create a new image from the modified "ISO" folder!

   Posted 6 months ago #
5. 

   Ceel
   

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   No no no, that's much simpler than what you imagine!
   Say your nvme0n1p5 partition is mounted at /mnt, then `
   cp vmlinuz-3.16.55-slitaz /mnt
   cp rootfs.gz /mnt`
   and that's all!

   How does boot the computer from the ISO?
   The bootloader loads in memory from the root you have defined (set root=(hd0,gpt5))

   1. the ISO (loopback loop /iso/slitaz-rolling-core64.iso)
   2. then from this, loads the kernel (linux (loop)/boot/vmlinuz-3.16.55-slitaz64)
   3. and the rootfs (initrd (loop)/boot/rootfs.gz)

   We don't need the ISO anymore after vmlinuz-3.16.55-slitaz64 and rootfs.gz) have been extracted of it.

   There are advantages to have vmlinuz-3.16.55-slitaz and rootfs.gz on the HD

   • the boot is faster (no need to load an ISO)
   • you save space in memory (the one occupied by the ISO)
   • you don't need to build a new ISO each time you generate a new rootfs, just replace the previous one

   But as said in my previous post, it would be better to rebuild a new rootfs.gz starting from slitaz-rolling.iso (32bit) and its rootfs4.gz than from core64. I'm not sure that mixing a 32bit kernel with files from a system with a 64bit kernel is a good deal... and rootfs4.gz is smaller than rootfs.gz of core64 -> boot still faster.

   Posted 6 months ago #
6. 

   Swarm
   

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   I found the answer to my question. https://doc.slitaz.org/en:handbook:hacklivecd
   And here's my result :)

   My ISO "slitaz-zerg.iso" is 211,2 МиБ!
   My image is loading several times slower than image "slitaz-rolling.iso"!
   However, all the memory is being used!

   Question: Why did my image become so heavy?

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   Posted 6 months ago #
7. 

   Swarm
   

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   I didn't see your last message! I will redo everything...

   Posted 6 months ago #
8. 

   Ceel
   

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   Well done!

   211MB... probably because the ISO is not compressed and because core64 is an ISO that boots (when compatible with your HW) in graphic mode.
   Using the command tazlito writeiso lzma will generate a compressed ISO (~60MB) but still slower than booting from a kernel and a compressed rootfs on the HD.

   Tell us when you'll have succeeded to boot in frugal mode.

   By the way, I forgot to answer on one point: when you generate a new rootfs you can see Failed when you answer "no" at the question
   Do you whish to remove local/keymap settings?
   Don't take care ot it; same thing for me but all seems OK...

   Posted 6 months ago #
9. 

   Swarm
   

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   I created a new partition on my SSD drive with a size of 100MB. Formatted it as FAT32, and saved files onto it.
   I modified Grub2, and now I can boot from this disk partition "nvme0n1p8"!
   Is this what is referred to as booting in frugal mode?

   I need make:
   1.it does not ask for the username and password.
   2. Install "btrfs-progs"
   3 Add a bash script to the startup, for example, Hello world!

   #!/bin/bash
   echo "Hello, world!"

   Is it possible in my case? I mean booting from a hard "nvme0n1p8" drive that only has two "files rootfs.gz" and "vmlinuz-3.16.55-slitaz"?
   Or do I need to create a ISO image?

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   Posted 6 months ago #
10. 

    Ceel
    

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    Is this what is referred to as booting in frugal mode?

    Yes.

    I need make:
    1.it does not ask for the username and password.
    2. Install "btrfs-progs"
    3 Add a bash script to the startup, for example, Hello world!

    1. Normaly, adding autologin in the linux line of the GRUB2 menu: linux /boot/vmlinuz-3.16.55-slitaz autologin does SliTaz boots with the default user (tux); seems not working in console...
    2. As root:
       tazpkg -gi btrfs-progs
       Remember you must create and save a new rootfs before to shutdown when you installed new packages if you want to find them at next boot.
    3. This is possible when SliTaz boots in graphic mode but I don't know how to do it in console :(

    Posted 6 months ago #
11. 

    Swarm
    

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    Could you advise me on an "ISO" with that I can use to meet the conditions listed below, even with a desktop?

    1. Maximally fast booting from an ISO image!
    2. Allows booting without prompting for a password and login!
    3. Ability to add in to start up a bash script, for example, "Hello world!"

    This is needed to quickly roll back the system on Btrfs from Grub2 menu. I will write a bash script that will sort all available Btrfs snapshots on the specified disk partition, then delete the root subvolume and, if necessary, the home subvolume, replacing them with the selected subvolumes.

    Posted 6 months ago #
12. 

    Ceel
    

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    1. Maximally fast booting is with vmlinuz and rootfs on the hard disk.
    2. Unfortunately I don't see any solution; when you tried slitaz-rolling-core64.iso, it seems you booted in console instead in graphic mode. I think the kernel is too old for your computer (how old is your computer?) or maybe you need to install a driver but I don't have many hope :/ , SliTaz doesn't run in graphic mode on my more recent computer too :( .
       Install the pciutils package (tazpkg -gi pciutils and post the return of the command lspci.
    3. maybe a solution: depending of what your script(*) does you could write it in /etc/init.d/local.sh; this script is executed during the boot after the network is started and before to launch X:
       

       ...
       udhcpc: lease of 192.168.42.67 obtained, lease time 3600
       Processing /etc/init.d/local.sh
       Starting X environment...
       Starting message bus daemon: DBUS...                                  [ Done ]
       Starting all daemons...
       Setting up kernel security rules...                                   [ Done ]
       WARNING: IPtables rules are disabled
       Starting inetd daemon: inetd...                                       [ Done ]
       Starting ntpd daemon: ntpd...                                         [ Done ]
       
       Welcome to your box

    (*) Note SliTaz uses by default the shell of Busybox; if your script needs absolutely Bash you'll have to install it:
    tazpkg -gi bash

    Posted 6 months ago #
13. 

    Swarm
    

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    Thanks for the help! I will then create my own image based on Archlinux ...

    Posted 6 months ago #

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