SliTaz Forum
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hi,
I am using
$ uname -a
Linux lxuser-Latitude-3580 4.10.0-28-generic #32~16.04.2-Ubuntu SMP Thu Jul 20 10:19:48 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.3 LTS
Release: 16.04
Codename: xenial
$ grub-install --version
grub-install (GRUB) 2.02~beta2-36ubuntu3.12
I want to run slitaz fully from RAM by using its iso file and adding entry in grub2 menu .
Has anybody done that ?
If yes , can you provide details like custom_cfg_file and link to iso file.
Thanks.
BTW , I have tried http://mirror.slitaz.org/iso/stable/flavors/slitaz-4.0-core.iso but I get kernel too old. and in case of rolling version it hangs up.
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Hi,
A simple entry for the 4-in1 Rolling ISO:
menuentry "LiveISO" {
loopback taziso (hd0,1)/boot/slitaz-rolling.iso
linux (taziso)/boot/bzImage ro root=/dev/null kmap=fr-latin1 autologin
initrd (taziso)/boot/rootfs4.gz (taziso)/boot/rootfs3.gz (taziso)/boot/rootfs2.gz (taziso)/boot/rootfs1.gz
}
Of course you can use the name you want instead "taziso"; and adapt (hd0,1) according at where is the ISO.
BTW, take care of the support where your ISO is stored. I meat some troubles with NTFS.
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i will try and get back with result .
Thanks.
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@Ceel
I did as you have mentioned .
I get a plain purple screen when I select the option 'LiveISO'
I am sure that my iso is in right partition (type ext4) and folder but cannot say what is going on as there are no prints on screen.
Is there a way to find out the cause of hangup ?
Thanks.
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Maybe the kernel does not recognize your graphic card. Try to boot in console only:
At the GRUB menu, select LiveISO but don't press [Enter], press [E]. Then edit the [c]initrd[/c] line; supress [c](taziso)/boot/rootfs3.gz (taziso)/boot/rootfs2.gz (taziso)/boot/rootfs1.gz[/c] and press [F10] to boot.
If it's OK, then boot X only: same as above but supress [c](taziso)/boot/rootfs2.gz (taziso)/boot/rootfs1.gz[/c].
By the way, in your [c]grub.cfg[/c] it would be better to suppress [c]autologin[/c] (and of course if you don't use a french keyboard [c]kmap=fr-latin1[/c] 
)
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i will remove autologin and all options in initrd except rootsfs4.gz
Then I will get back with results.
Thanks.
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ok , now i am able to get shell.
please see attached log file.
Is there a way to get gui ?
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Hi, I don't know if it still works, but in that case it would boot from the grub with a "screen=text" (without quotes) then once logged in as root in text mode, it would give a "tazx" that would allow "install or reconfigure Xorg". Obviously only if you have internet available in the lan socket...
At the end to test the graphics was enough to give a "slim" or simply "startx"
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As suggested by gibor, you can run [c]tazx[/c] as root and [c]install or reconfigure Xorg[/c]; then select the intel driver
or from the prompt as root:
[c]tazpkg -gi xorg-xf86-video-intel[/c]
Then [c]startx[/c]. If it fails again, post the new Xorg.0.log.
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ok
I will try that .
I also have another laptop . Its model is https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-edge-laptops/thinkpad-e470/20h1
On it , I find that I get hungup purple screen after selecting option in grub2 even when rootfs4.gz is only present . Should I start a new thread for that one ?
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As suggested by gibor, you can run tazx as root and install or reconfigure Xorg; then select the intel driver
or from the prompt as root:
tazpkg -gi xorg-xf86-video-intel
Then startx. If it fails again, post the new Xorg.0.log.
lim
As root , I ran tazx and tried xorg , xorg-light , slim one by one but still no gui.
Then I ran tazpkg -gi xorg-xf86-video-intel but it says already installed.
Here is new failure log on trying startx .
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I found a topic on the Linux Mint forum about the Intel HD Graphics 620 (your graphic card); seems it needs at least a kernel 4.4 or later to work... 
Concerning the Lenovo, after you selected LiveISO, you even don't see something like this
[c][Linux-bzImage, setup=0x3e00, size=0x3b3310]
[Linux-initrd @0xf5dc000, 0x903708 bytes][/c]
before to get a purple screen?
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In Lenovo
I simply get purple screen after I select boot option . No messages appear .
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I guess the last hope is to add "nomodeset" to the grub...
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gibor , in laptop where i get purple hungup screen - i will add nomodeset to linux line in grub options and see how that goes.
BTW ceel , i have attached new xorg-log for laptop in which i get text prompt.
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BTW ceel , i have attached new xorg-log for laptop in which i get text prompt.
Yes, I had a look at it; the intel module is now loaded. But the builtin module i915 before kernel 4.4 don't support the Intel HD Graphics 620.
I hope [c]nomodeset[/c] will help but it seems your system hangs when mounting the ISO; it does not load the kernel and the rootfs.
Although it is unlikely, please check again there is no error in the menuentry of grub.cfg. If it's correct and [c]nomodeset[/c] doesn't provide the solution, here is a test you can do:
[*]extract rootfs4.gz, rootfs3.gz, rootfs2.gz, rootfs1.gz and bzImage of the ISO
[*]copy the files in a directory, say [c]frugal[/c] (if Windows is installed on your computer, don't copy them on the same partition)
[*]create a new entry in grub.cfg
menuentry "SliTaz Rolling (frugal mode)" {
set root=(hd0,2)
linux /frugal/bzImage ro root=/dev/null
initrd /frugal/rootfs4.gz /frugal/rootfs3.gz /frugal/rootfs2.gz /frugal/rootfs1.gz
}
Note: [c](hd0,2)[/c] suggests that the directory [c]frugal/[/c] is on the second partition of the first disk.
and see if the kernel and the rootfs are loaded and SliTaz boots (with or without GUI...)
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