home user composed on 2025-09-13 21:58 (UTC-0600):
> Felix Miata wrote:
>> Or, you could just ignore which is in control, and
>> use the BBS hotkey each time a choice to the non-default is wished. With BBS
>> hotkey usage, it shouldn't matter whether one installation knows anything
>> about
>> booting another.
> "BBS hotkey"? What's that? I don't see any keys on my keyboard
> labelled anything remotely suggesting "BBS".
BIOS Boot Selector/Service
With most "PC" compatible computers it's reported to you on your POST screen at
the same time it reports which key gets you into BIOS/firmware setup. Otherwise
you may need to get into BIOS setup or the computer manual to discover which key
it is, or find it below:
Abit F9
Acer F12 or ESC or F9
ASRock F11
Asus F8
Biostar F9
Dell F12
DFI ESC
eCS F12 or F10
eMachines F10
EVGA F7
Fujitsu ?
Gateway F12 or F10
Gigabyte F12
HP/Compaq F10, F9 or ESC or ESC,F9
Intel F10
Lenovo F12 or F8 or F10
MSI F11
Shuttle ESC or F11 or F7
Toshiba F12
>>> By default, Fedora uses the "btrfs" file system, right?
>> By default. Default != mandatory. It supports both btrfs and ext4.
>>
>>> By default, Ubuntu uses the "ext4" file system, right?
>> By default. Default != mandatory. It supports both btrfs and ext4.
> Here, too, this is a major part of why I'm doing this thread. With no
> install instructions, I don't know how to control which file systems are
> used. I don't even know if both distros have to use the same file
> system, though my first guess is that they do if they're on the same
> desktop.
I partition, format and LABEL in advance of starting any installer. I then only
need to use the partitioning section of the installer to designate which to
mount
where. LABELs can make it easy to keep track of purpose, and substitute for
UUIDs
in fstabs and root= parameters in bootloaders. Most people use whatever
partitioner the installer includes, but I like using the exact same one always
regardless what I'm installing, giving me no surprises or compatibility issues
by
mixing different ones at different times. It's during installation's
partitioning
phase where selection of filesystem type(s) is normally offered, unless the
basic
installation path selected is to use whatever a installer defaults to.
# grep EXT4_FS= /boot/config-6.15.10-200.fc42.x86_64
CONFIG_EXT4_FS=y
# grep BTRFS_FS= /boot/config-6.15.10-200.fc42.x86_64
CONFIG_BTRFS_FS=y
# inxi -S
System:
Host: big41 Kernel: 6.8.0-63-generic arch: x86_64 bits: 64
Console: pty pts/0 Distro: Ubuntu 24.04.2 LTS (Noble Numbat)
# grep EXT4_FS= /boot/config-6.8.0-63-generic
CONFIG_EXT4_FS=y
# grep BTRFS_FS= /boot/config-6.8.0-63-generic
CONFIG_BTRFS_FS=m
You should be good with the pair Fedora and Ubuntu, though in 24.04 BTRFS is in
a
module rather than a kernel built-in.
--
Evolution as taught in public schools is, like religion,
based on faith, not based on science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata
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