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How can two LL versions be mutually compatible on one physical hard drive?
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One of my laptops has LL2.8 installed on its HDD,  along with more than 20 other distros.
I have just installed LL3.0 next to 2.8, the newer version now being in charge of the grubscreen.
However, though I can boot into LL3.0, when I choose to boot from LL2.8 (selecting it from the grublist) it refuses to boot.

Therefore, it seems that when I install two different versions of LL (on the same HDD), only the last installed version is bootable.  Is there something I can do so that either version is bootable (i.e. they are mutually compatible) or am I just stuck with being able to boot only the last installed LL version?

Many thanks for any comments or advice on this...
Mike
64bit OS (32-bit on Samsung[i] netbook) installed in [i]Legacy mode on MBR-formatted SSDs (except pi which uses a micro SDHC card):
2017 - Raspberry pi 3B (4cores) ~ [email protected] - LibreElec, used for upgrading our Samsung TV (excellent for the task)  
2012 - Lenovo G580 2689 (2cores; 4threads] ~ [email protected] - LL3.8/Win8.1 dual-boot (LL working smoothly)
2011 - Samsung NP-N145 Plus (1core; 2threads) ~ Intel Atom [email protected] - LL 3.8 32-bit (64-bit too 'laggy')
2008 - Asus X71Q (2cores) ~ Intel [email protected] - LL4.6/Win8.1 dual-boot, LL works fine with kernel 4.15
2007 - Dell Latitude D630 (2cores) ~ Intel [email protected] - LL4.6, works well with kernel 4.4; 4.15 doesn't work
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How can two LL versions be mutually compatible on one physical hard drive? - by m654321 - 06-08-2016, 12:46 PM

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