Thank you Thomas ...
1.
➜ ~ blkid
/dev/sde1: LABEL="XXXXXX" UUID="*d8a7b940-0ff5-41c4-81a0-9fd1797501ed*"
TYPE="ext4" PARTUUID="0860eda0-01"
➜ ~ sudo fdisk -l
Disk /dev/sde: 14.8 GiB, 15833497600 bytes, 30924800 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0860eda0
Device Boot Start End Sectors Size Id Type
/dev/sde1 2048 30924799 30922752 14.8G 83 Linux
/It is clear that I've correctly partitioned my //*USB stick*//./
2.
➜ ~ cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sdc3 during installation
UUID=XXXXXXXXXXXXXXXXXXXXXXXXXXXX / ext4
errors=remount-ro 0 1
# /dev/sde1
UUID=*d8a7b940-0ff5-41c4-81a0-9fd1797501ed* / ext4 errors=remount-ro
0 1
# /boot/efi was on /dev/sdb1 during installation
UUID=YYYYYYYYY /boot/efi vfat umask=0077 0 1
/swapfile
/This is my //*host laptop's fstab*//. Hmm, here is what I'm
//*NOT*//quite clear. //*mtab automatically*//mounts my *USB stick*
every time if I don't specify this //*USB stick*//in //*fstab*//.
Anyway, now I clearly specified this */dev/sde1* via *UUID* in
/*/fstab/*/, it's *NOT* showing *in mtab* any more, which is just what
I'm expecting. *However*, how about if I *plug out this USB stick* and
want to use it on *another laptop*?/
3. Rebooting ... Let me show you some more pictures first...
https://longervision.cc/bugs/grub.jpg
https://longervision.cc/bugs/grub_advanced_option.jpg
https://longervision.cc/bugs/kernel_panic.jpg
/It's weird the names listed in *grub*... Can I change them? But how? I
checked my *host's grub.cfg*, and found:/
//
menuentry 'Longer Vision Technology (8.4) (on /dev/sde1)' --class
longervisiontechnology --class gnu-linux --class gnu --class os
$menuentry_id_option
'osprober-gnulinux-simple-d8a7b940-0ff5-41c4-81a0-9fd1797501ed' {
insmod part_msdos
insmod ext2
set root='hd4,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd4,msdos1
--hint-efi=hd4,msdos1 --hint-baremetal=ahci4,msdos1
d8a7b940-0ff5-41c4-81a0-9fd1797501ed
else
search --no-floppy --fs-uuid --set=root
d8a7b940-0ff5-41c4-81a0-9fd1797501ed
fi
linux /boot/vmlinuz-5.0.2-lfs-8.5 rootdelay=10 root=/dev/sde ro
}
submenu 'Advanced options for Longer Vision Technology (8.4) (on
/dev/sde1)' $menuentry_id_option
'osprober-gnulinux-advanced-d8a7b940-0ff5-41c4-81a0-9fd1797501ed' {
menuentry 'GNU/Linux, Linux 5.0.2-lfs-8.5 (on /dev/sde1)' --class
gnu-linux --class gnu --class os $menuentry_id_option
'osprober-gnulinux-/boot/vmlinuz-5.0.2-lfs-8.5--d8a7b940-0ff5-41c4-81a0-9fd1797501ed'
{
insmod part_msdos
insmod ext2
set root='hd4,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root
--hint-bios=hd4,msdos1 --hint-efi=hd4,msdos1
--hint-baremetal=ahci4,msdos1 d8a7b940-0ff5-41c4-81a0-9fd1797501ed
else
search --no-floppy --fs-uuid --set=root
d8a7b940-0ff5-41c4-81a0-9fd1797501ed
fi
linux /boot/vmlinuz-5.0.2-lfs-8.5 rootdelay=10 root=/dev/sde ro
}
}
It looks the options are *automatically built* into this*host's*
*grub.cfg* while I was doing *sudo update-grub* ? I just do NOT like the
name, and I believe I can modify this *host's grub.cfg* into to show a
different name (doing it now). However, since it's automatically built
into this *host's grub.cfg*, where is the *original place* that I can
specify this info? Just cannot remember. It must be ME who specified
those info somewhere .....
Anyway, Thank you very much for your prompt reply...
Cheers
Pei
On 2019-03-18 3:22 a.m., thomas wrote:
Am 2019-03-18 11:14, schrieb Pei Jia:
Hi:
I now make some progress:
* I followed your suggestions, CP -A LFS OUT TO MY HOST, AND
PARTITION THE USB DRIVE.
* However, I still failed to boot, please refer to my new result:
https://longervision.cc/bugs/lfs_kernel_panic.jpg
I believe I'm already very close to the RIGHT answer...
Anyway, I now have 2 GRUBS, one is ON MY HOST'S LAPTOP GRUB, the
other is ON MY USD DRIVER.
BTW, is this
http://linuxfromscratch.org/lfs/view/stable/chapter08/grub.html for
configuring GRUB2 on the HOST COMPUTER (EXISTING GRUB) ? or for the
NEWLY USB DRIVE?
Cheers
Pei
On 2019-03-17 2:13 p.m., spiky0011 wrote:
On 17/03/2019 20:33, Pei Jia wrote:
...
Please do not top-post. Add your comments *below* the text you're
answering. That helps to follow the discussion.
Please provide the grub.cfg file, the fstab of the system to boot and
the partition layout including info about which partition contains
which file system.
Indeed, it looks like we not too far from success, but you never
know... ;-)
--
Thomas
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