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Use the archisolabel= command line option to mount the archiso device.

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If the archisolabel= option is specified on the kernel commandline,
a device /dev/archiso will be created and will be used to boot the
live system.
Patch from brain0 <thomas@archlinux.org>

Signed-off-by: Gerhard Brauer <gerbra@archlinux.de>
Signed-off-by: Aaron Griffin <aaronmgriffin@gmail.com>
This commit is contained in:
Gerhard Brauer 2009-07-26 10:57:46 +02:00 committed by Aaron Griffin
parent 73dc6b4b1b
commit 9794a6fb7c
2 changed files with 25 additions and 52 deletions
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69
archiso/hooks/archiso
View File

@ -50,61 +50,34 @@ run_hook ()
ramdisk_size="75%"
fi
msg -n ":: Mounting tmpfs, size=${ramdisk_size}..."
mount -t tmpfs -o "size=${ramdisk_size}" tmpfs /tmpfs
mount -t tmpfs -o "size=${ramdisk_size}" tmpfs /tmpfs
msg "done."
# external drives may need to settle
msg ":: Waiting for devices to settle..."
/sbin/udevadm trigger --subsystem-match=usb
/sbin/udevadm settle
usbdelay=$(( ${usbdelay:-0} + 1 ))
msg ":: Waiting ${usbdelay}s for USB devices"
/bin/sleep "${usbdelay}"
msg ":: Scanning for boot device..."
msg ":: Waiting for boot device..."
/bin/mkdir -p /bootmnt
found=0
/bin/modprobe -q isofs >/dev/null 2>&1
msg ":: Scanning cd drives..."
for cdrom in /dev/hd[a-z] /dev/sr[0-9]* /dev/scd[a-z] /dev/sg[0-9]*; do
[ ! -e "${cdrom}" ] && continue
if mount -r -t iso9660 "${cdrom}" /bootmnt >/dev/null 2>&1; then
if [ -e "/bootmnt/isomounts" ]; then
found=1
msg "${cdrom}"
break
fi
else
echo "Failed to mount ${cdrom}"
fi
[ ${found} -eq 0 ] && umount /bootmnt >/dev/null 2>&1
while ! poll_device /dev/archiso 30; do
echo "ERROR: boot device didn't show up after 30 seconds..."
echo " Falling back to interactive prompt"
echo " You can try to fix the problem manually, log out when you are finished"
PS1="ramfs$ " /bin/sh -i
done
if [ ${found} -eq 0 ]; then
msg ":: Scanning usb drives..."
for usb in /dev/sd[a-z][0-9]; do
[ ! -e "${usb}" ] && continue
if mount -r -t vfat "${usb}" /bootmnt >/dev/null 2>&1 ||\
mount -r -t ext2 "${usb}" /bootmnt >/dev/null 2>&1; then
if [ -e "/bootmnt/isomounts" ]; then
found=1
msg "${usb}"
break
fi
else
echo "Failed to mount ${usb}"
fi
[ ${found} -eq 0 ] && umount /bootmnt >/dev/null 2>&1
done
fi
if [ ${found} -eq 0 ]; then
echo "ERROR: cannot find boot device, cannot continue..."
echo " Falling back to interactive prompt"
PS1="ramfs$ " /bin/sh -i
eval $(fstype < /dev/archiso 2>/dev/null)
if [ -n "${FSTYPE}" -a "${FSTYPE}" != "unknown" ]; then
if mount -r -t "${FSTYPE}" /dev/archiso /bootmnt >/dev/null 2>&1; then
if [ -e "/bootmnt/isomounts" ]; then
echo "SUCCESS: Mounted archiso volume successfully."
else
echo "ERROR: Mounting was successful, but the isomounts file does not exist."
exit 1
fi
else
echo "ERROR: Failed to mount /dev/archiso"
exit 1
fi
else
echo "ERROR: /dev/archiso found, but the filesystem type is unknown."
fi
/bin/modprobe -q squashfs >/dev/null 2>&1

8
archiso/hooks/archiso-early
View File

@ -1,8 +1,8 @@
# vim: set ft=sh:
run_hook ()
{
# Set our usbdelay time. Default: 0
cd /
/bin/mkdir -p etc/modprobe.d/
echo "options usb-storage delay_use=${usbdelay:-0}" > /etc/modprobe.d/usb-delay
if [ -n "${archisolabel}" ]; then
echo "ACTION==\"add|change\", SUBSYSTEM==\"block\", IMPORT{program}=\"vol_id --export \$tempnode\"" > /lib/udev/rules.d/00-archiso-device.rules
echo "ENV{ID_FS_LABEL_ENC}==\"${archisolabel}\", SYMLINK+=\"archiso\"" >> /lib/udev/rules.d/00-archiso-device.rules
fi
}