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FastTurtle
Guru
Joined: 03 Sep 2002
Posts: 499
Location: Flakey Shake & Bake Caliornia, USA
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 Posted: Sat Nov 02, 2024 5:21 pm Post subject: Using Lilo with GPT and PartUUID |
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Just found this on a Slackware Thread about how to get Lilo to work with a PARTUUID
| Code: | | append = " root=PARTUUID=00f34709-02" |
It's that simply but does require the lates Lilo V: 24.2
I'll be testing this by Year End (Christmas gift to myself) on a SuperMicro H12SSL based motherboard with an Epyc. Problem is that according to the Manual it's either Legacy (default) or EFI and my LSI 9300-16i is only visable in Legacy Mode if I want to boot and I can use GPT mode and now simply test the append and use the root=PARTUUID=xxxxxx-xxx as desired for the boot disk. It even gives me the option of multi booting the system using the partuuid of what ever I plan on testing while keeping all of my data safe on other drives.
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eccerr0r
Watchman
Joined: 01 Jul 2004
Posts: 9818
Location: almost Mile High in the USA
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| Posted: Tue Nov 05, 2024 3:53 am Post subject: |
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TBH I'm not sure why one would want to use lilo or elilo on an uefi system. Former doesn't support EFI, latter hasn't had patches in almost a decade.
To use lilo on a modern machine, the firmware must have CSM or MBR BIOS compatibility mode. EFI will have nothing of legacy boot sectors.
This is not to say you can't install lilo on a GPT disk, but the firmware of the computer still needs to do legacy boot.
TBH either use grub or refind, or don't use a bootloader at all - the point of lilo is that MBR firmware does not understand filesystems and lilo bridged that gap. EFI however does understand one filesystem (ESP/FAT) and can load boot file images directly. Using EFI is much safer as you won't risk writing sectors in funny places (which is what lilo does in order to be able to boot) so less chance of corruption, not to mention you can't move files around without upsetting lilo.
There's the other problem of EFI firmware on expansion cards knowing that it needs to also do legacy boot, which may not exist...
I ditched lilo a long long time ago as grub brought boot features of OpenFirmware to PCs though without the safety of unmodifible firmware. With UEFI I also question the need of grub, alas having a consistent boot interface among all my PCs is helpful...
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Chiitoo
Administrator
Joined: 28 Feb 2010
Posts: 2726
Location: Here and Away Again
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| Posted: Tue Nov 05, 2024 8:00 am Post subject: |
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When grub "legacy" was going away, and after having tried grub-2... I tried LILO and I like that it is simple and works.
Some years ago I did try the EFI way too... when I last moved my trusty install to another drive, and didn't get it to work on the first try, so I went back to the way I know works (with GPT included).
So far have not seen an advantage for me with the other methods, though I'm likely to be ignorant to them, but for the time being I'll probably be sticking with LILO at least for some more time to come.
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