boot failure after installing Mint 20
by Martinus2u from LinuxQuestions.org on (#59GAW)
hi to all Linux Mint experts!
I'm not new to Linux at all, but new to Linux Mint, and new to grub.
I've started installing Linux Mint for friends and family on accounts of it being beginner-friendly. But I have come across an issue that a beginner can't solve.
A minor nuisance is that the installer freezes occasionally. I've observed that on two machines, using the same GT 240 graphics card. My assumption is that it is nouveau-related, and well, i can re-boot until the installer runs through.
A much bigger problem is this: whenever I try a non-trivial partitioning scheme (I choose "Something else" and then create two partitions mounted at / and /boot, for instance) the installation runs through, but the subsequent boot ends up with kernel panic - root filesystem not found. Upon further inspection it turns out that the grub parameters for root= are wrong (wrong UUIDs or no UUIDS at all)
When I repeat the install with a simpler scheme (only one partition mounted on /) everything is installed correctly.
Now the questions to the experts: what am I doing wrong? how can I fix the grub installation in case of a botched install? I am familiar with fdisk and the like, just not with grub.
I'm not new to Linux at all, but new to Linux Mint, and new to grub.
I've started installing Linux Mint for friends and family on accounts of it being beginner-friendly. But I have come across an issue that a beginner can't solve.
A minor nuisance is that the installer freezes occasionally. I've observed that on two machines, using the same GT 240 graphics card. My assumption is that it is nouveau-related, and well, i can re-boot until the installer runs through.
A much bigger problem is this: whenever I try a non-trivial partitioning scheme (I choose "Something else" and then create two partitions mounted at / and /boot, for instance) the installation runs through, but the subsequent boot ends up with kernel panic - root filesystem not found. Upon further inspection it turns out that the grub parameters for root= are wrong (wrong UUIDs or no UUIDS at all)
When I repeat the install with a simpler scheme (only one partition mounted on /) everything is installed correctly.
Now the questions to the experts: what am I doing wrong? how can I fix the grub installation in case of a botched install? I am familiar with fdisk and the like, just not with grub.