97 lines
No EOL
2.1 KiB
Bash
97 lines
No EOL
2.1 KiB
Bash
#!/bin/bash
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# chroot_mount()
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# prepares target system as a chroot
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#
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chroot_mount()
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{
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[[ -e "${DESTDIR}/sys" ]] || mkdir -m 555 "${DESTDIR}/sys"
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[[ -e "${DESTDIR}/proc" ]] || mkdir -m 555 "${DESTDIR}/proc"
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[[ -e "${DESTDIR}/dev" ]] || mkdir "${DESTDIR}/dev"
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mount -t sysfs sysfs "${DESTDIR}/sys"
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mount -t proc proc "${DESTDIR}/proc"
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mount -o bind /dev "${DESTDIR}/dev"
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chmod 555 "${DESTDIR}/sys"
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chmod 555 "${DESTDIR}/proc"
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}
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# chroot_umount()
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# tears down chroot in target system
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#
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chroot_umount()
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{
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umount "${DESTDIR}/proc"
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umount "${DESTDIR}/sys"
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umount "${DESTDIR}/dev"
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}
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# _getdisccapacity()
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#
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# parameters: device file
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# outputs: disc capacity in bytes
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_getdisccapacity()
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{
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echo $(fdisk -l $1 | grep $1: | cut -d" " -f5)
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}
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# Get a list of available disks for use in the "Available disks" dialogs. This
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# will print the disks as follows, getting size info from _getdisccapacity():
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# /dev/sda: 625000 MiB (610 GiB)
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# /dev/sdb: 476940 MiB (465 GiB)
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_getavaildisks()
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{
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for DISC in $(finddisks); do
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DISC_SIZE=$(_getdisccapacity $DISC)
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echo "$DISC: $((DISC_SIZE / 2**20)) MiB ($((DISC_SIZE / 2**30)) GiB)\n"
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done
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}
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getfstype()
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{
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echo "$(${_BLKID} -p -i -s TYPE -o value ${1})"
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}
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# getfsuuid()
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# converts /dev devices to FSUUIDs
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#
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# parameters: device file
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# outputs: FSUUID on success
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# nothing on failure
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# returns: nothing
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getfsuuid()
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{
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echo "$(${_BLKID} -p -i -s UUID -o value ${1})"
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}
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# getuuid()
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# converts /dev/[hs]d?[0-9] devices to UUIDs
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#
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# parameters: device file
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# outputs: UUID on success
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# nothing on failure
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# returns: nothing
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getuuid()
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{
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if [ -n "$(echo ${1} |grep -E '[shv]d[a-z]+[0-9]+$|mmcblk[0-9]+p[0-9]+$')" ]; then
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echo "$(blkid -s UUID -o value ${1})"
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fi
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}
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# parameters: device file
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# outputs: LABEL on success
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# nothing on failure
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# returns: nothing
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getfslabel()
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{
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echo "$(${_BLKID} -p -i -s LABEL -o value ${1})"
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}
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getpartuuid()
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{
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echo "$(${_BLKID} -p -i -s PART_ENTRY_UUID -o value ${1})"
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}
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getpartlabel()
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{
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echo "$(${_BLKID} -p -i -s PART_ENTRY_NAME -o value ${1})"
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} |