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Mxgrub improve message output #14

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Sep 26, 2017
Merged

Mxgrub improve message output #14

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7fdf77b
mxgrub: list --test option in usage message
thomas Sep 25, 2017
9a6df45
mxgrub: check for consistent GRUB installation
thomas Sep 25, 2017
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20 changes: 20 additions & 0 deletions mxgrub/mxgrub
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@ sub USAGE { return <<"EOF" }
$0 --list : list available labels
$0 --update : only scan /boot and rewrite grub.cfg
$0 --initramfs : update /boot/grub/initramfs.igz from /project/admin/initramfs
$0 --test : perform miscellaneous tests (VX50 board)
EOF

sub sys {
Expand Down Expand Up @@ -41,6 +42,23 @@ sub check_mbr {

}

sub check_grub_installation {
my $fingerprint='[ab]*.mod'; # this 'scans' just a dozen, and not 200 files.
my $sum_lib = ` cat /usr/lib/grub/i386-pc/$fingerprint | md5sum `;
my $sum_boot = ` cat /boot/grub/i386-pc/$fingerprint | md5sum `;
my @root_dev = root_dev();

warn << "EOF" if $sum_lib ne $sum_boot;

Note: GRUB version installed in /usr differs from GRUB version used to boot.

Consider updating the boot-loader with:

grub-install --boot-directory=/boot $root_dev[1]

EOF
}

# /usr/include/sys/sysmacros.h
# MMMM.MMMM MMMM.MMMM MMMM.MMMM MMMM.MMMM mmmm.mmmm mmmm.MMMM MMMM.MMMM mmmm.mmmm

Expand Down Expand Up @@ -255,6 +273,8 @@ sub cmd_initramfs {
sys('bash','-c','cd /project/admin/initramfs;find .|cpio -H newc -o | gzip > /boot/grub/initramfs.igz');
}

check_grub_installation

our ($opt_list,$opt_update,$opt_initramfs,$opt_test);

GetOptions(
Expand Down