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I don't know if it is possible.
I want to start an archlinux installation from an USB stick so that if I connect the stick to another computer it will boot without changing boot configuration, regardless of the hard disks attached to new computer.
The new computer BIOS will be set to boot from USB stick.
This is not a "live" USB installation. It is a standard one.
Most of time I had to change grub configuration with grub-mkconfig from another installation or arch CD but I would like to have a system that will boot without any intervention.
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I do not understand why do you need to change your grub configuration.
Reading here , it seems the usb is always recognized as hd0, so what kind of configuration do you feel necessary to be able to boot your usb arch linux ?
Last edited by GloW_on_dub (2014-05-30 10:07:50)
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In my system with 3 more hardisks (2 windows sata ntfs internal and one usb3 external ntfs) with the USB stick connected to a USB2 port, in grub.cfg I have (hd3,msdos1)
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Well that's strange, the wiki said that your usb should be at hd0 if you've installed grub on it.
You've made a mistake or the wiki is incorrect...
Last edited by GloW_on_dub (2014-05-30 10:55:28)
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This is the result of bootinfoscript:
Boot Info Script 0.61 [1 April 2012]
============================= Boot Info Summary: ===============================
=> Windows is installed in the MBR of /dev/sda.
=> Windows is installed in the MBR of /dev/sdb.
=> Windows is installed in the MBR of /dev/sdc.
=> Grub2 (v1.99) is installed in the MBR of /dev/sdd and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
in partition 75 for .
sda1: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /bootmgr /Boot/BCD
sda2: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
sdb1: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /bootmgr /Boot/BCD /Windows/System32/winload.exe
sdc1: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows XP: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
sdd1: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Arch Linux ()
Boot files: /boot/grub/grub.cfg /etc/fstab
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 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
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 * 2,048 206,847 204,800 7 NTFS / exFAT / HPFS
/dev/sda2 206,848 976,771,071 976,564,224 7 NTFS / exFAT / HPFS
Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 232.9 GiB, 250059350016 bytes, 488397168 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
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sdb1 * 208,896 487,680,367 487,471,472 7 NTFS / exFAT / HPFS
Drive: sdc _____________________________________________________________________
Disk /dev/sdc: 1.8 TiB, 2000365289472 bytes, 3906963456 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
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sdc1 2,048 3,906,963,455 3,906,961,408 7 NTFS / exFAT / HPFS
Drive: sdd _____________________________________________________________________
Disk /dev/sdd: 14.9 GiB, 16013942784 bytes, 31277232 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
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sdd1 2,048 31,277,055 31,275,008 83 Linux
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/sda1 CEBC9DA5BC9D889B ntfs Riservato per il sistema
/dev/sda2 FC1AA10C1AA0C4CC ntfs data
/dev/sdb1 FC1AA10C1AA0C4CC ntfs
/dev/sdc1 F474B7AA74B76DCC ntfs My Passport
/dev/sdd1 0cd6f57a-72a1-4620-af0f-b00c25b9d478 ext4 archaudio2
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/sda2 /media/windows fuseblk (rw,nosuid,nodev,noexec,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096)
/dev/sdc1 /media/windows2 fuseblk (rw,nosuid,nodev,noexec,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096)
/dev/sdd1 / ext4 (rw,noatime,data=ordered)
=========================== sdd1/boot/grub/grub.cfg: ===========================
--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
insmod part_gpt
insmod part_msdos
if [ -s $prefix/grubenv ]; then
load_env
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="${saved_entry}"
fi
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod ext2
set root='hd3,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos1 --hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1 0cd6f57a-72a1-4620-af0f-b00c25b9d478
else
search --no-floppy --fs-uuid --set=root 0cd6f57a-72a1-4620-af0f-b00c25b9d478
fi
font="/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_input console
terminal_output gfxterm
if [ x$feature_timeout_style = xy ] ; then
set timeout_style=menu
set timeout=5
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
set timeout=5
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Arch Linux, with Linux linux-rt' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-rt-advanced-0cd6f57a-72a1-4620-af0f-b00c25b9d478' {
savedefault
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos submenusubmenu
insmod ext2
set root='hd3,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos1 --hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1 0cd6f57a-72a1-4620-af0f-b00c25b9d478
else
search --no-floppy --fs-uuid --set=root 0cd6f57a-72a1-4620-af0f-b00c25b9d478
fi
echo 'Loading Linux linux-rt ...'
linux /boot/vmlinuz-linux-rt root=UUID=0cd6f57a-72a1-4620-af0f-b00c25b9d478 rw quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initramfs-linux-rt.img
}
menuentry 'Arch Linux, with Linux linux-rt COMMAND LINE' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-rt-advanced-0cd6f57a-72a1-4620-af0f-b00c25b9d478' {
savedefault
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos submenusubmenu
insmod ext2
set root='hd3,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos1 --hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1 0cd6f57a-72a1-4620-af0f-b00c25b9d478
else
search --no-floppy --fs-uuid --set=root 0cd6f57a-72a1-4620-af0f-b00c25b9d478
fi
echo 'Loading Linux linux-rt ...'
linux /boot/vmlinuz-linux-rt root=UUID=0cd6f57a-72a1-4620-af0f-b00c25b9d478 rw quiet systemd.unit=multi-user.target
echo 'Loading initial ramdisk ...'
initrd /boot/initramfs-linux-rt.img
}
menuentry 'Arch Linux, with Linux linux-rt (fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-rt-fallback-0cd6f57a-72a1-4620-af0f-b00c25b9d478' {
savedefault
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd3,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos1 --hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1 0cd6f57a-72a1-4620-af0f-b00c25b9d478
else
search --no-floppy --fs-uuid --set=root 0cd6f57a-72a1-4620-af0f-b00c25b9d478
fi
echo 'Loading Linux linux-rt ...'
linux /boot/vmlinuz-linux-rt root=UUID=0cd6f57a-72a1-4620-af0f-b00c25b9d478 rw quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initramfs-linux-rt-fallback.img
}
menuentry 'Arch Linux, with Linux linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-advanced-0cd6f57a-72a1-4620-af0f-b00c25b9d478' {
savedefault
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd3,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos1 --hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1 0cd6f57a-72a1-4620-af0f-b00c25b9d478
else
search --no-floppy --fs-uuid --set=root 0cd6f57a-72a1-4620-af0f-b00c25b9d478
fi
echo 'Loading Linux linux ...'
linux /boot/vmlinuz-linux root=UUID=0cd6f57a-72a1-4620-af0f-b00c25b9d478 rw quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initramfs-linux.img
}
menuentry 'Arch Linux, with Linux linux (fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-fallback-0cd6f57a-72a1-4620-af0f-b00c25b9d478' {
savedefault
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd3,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos1 --hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1 0cd6f57a-72a1-4620-af0f-b00c25b9d478
else
search --no-floppy --fs-uuid --set=root 0cd6f57a-72a1-4620-af0f-b00c25b9d478
fi
echo 'Loading Linux linux ...'
linux /boot/vmlinuz-linux root=UUID=0cd6f57a-72a1-4620-af0f-b00c25b9d478 rw quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initramfs-linux-fallback.img
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows 8 (loader) (on /dev/sdb1)' --class windows --class os $menuentry_id_option 'osprober-chain-FC1AA10C1AA0C4CC' {
savedefault
insmod part_msdos
insmod ntfs
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 FC1AA10C1AA0C4CC
else
search --no-floppy --fs-uuid --set=root FC1AA10C1AA0C4CC
fi
drivemap -s (hd0) ${root}
chainloader +1
}
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
### BEGIN /etc/grub.d/60_memtest86+ ###
### END /etc/grub.d/60_memtest86+ ###
--------------------------------------------------------------------------------
=============================== sdd1/etc/fstab: ================================
--------------------------------------------------------------------------------
#
# /etc/fstab: static file system information
#
# <file system> <dir> <type> <options> <dump> <pass>
UUID=0cd6f57a-72a1-4620-af0f-b00c25b9d478 / ext4 rw,noatime,data=ordered 0 1
/dev/sda2 /media/windows ntfs-3g users,uid=1000,gid=100,fmask=0113,dmask=0002 0 0
/dev/sdc1 /media/windows2 ntfs-3g users,uid=1000,gid=100,fmask=0113,dmask=0002 0 0
/dev/sr0 /media/cd udf,iso9660 users,noauto,exec 0 0
# none /media/ramdisk tmpfs nodev,nosuid,noexec,noatime,size=1024M 0 0
--------------------------------------------------------------------------------
=================== sdd1: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
=============================== StdErr Messages: ===============================
cat: /tmp/BootInfo-Hqvf2tox/Tmp_Log: No such file or directory
No volume groups found
mdadm: No arrays found in config file or automatically
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There is no expectation that a USB will always have the same 'hd' number. Use UUIDs rather than block identifiers.
I'm not sure how to do this is grub, but if it isn't easy, then perhaps syslinux would be a better choice (it is simple in syslinux).
Last edited by Trilby (2014-05-30 11:19:13)
"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman
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I have installed Syslinux with UUID of the USB pen and all is working very fine!!
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