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reboot: Implement -D from nextboot

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Implement -D from nextboot.sh which deletes the nextboot.conf file and
exists.

Sponsored by:		Netflix
Differential Revision:	https://reviews.freebsd.org/D43822
This commit is contained in:
Warner Losh 2024-02-12 11:45:29 -07:00
parent cfeedadfbd
commit 2c47954811
2 changed files with 22 additions and 7 deletions
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12
sbin/reboot/reboot.8
View file

@ -36,16 +36,16 @@
.Nd stopping and restarting the system
.Sh SYNOPSIS
.Nm halt
.Op Fl flNnpq
.Op Fl DflNnpq
.Op Fl k Ar kernel
.Nm
.Op Fl cdflNnpqr
.Op Fl cDdflNnpqr
.Op Fl k Ar kernel
.Nm fasthalt
.Op Fl flNnpq
.Op Fl DflNnpq
.Op Fl k Ar kernel
.Nm fastboot
.Op Fl dflNnpq
.Op Fl dDflNnpq
.Op Fl k Ar kernel
.Sh DESCRIPTION
The
@ -77,6 +77,10 @@ driver implements the power cycle functionality and only on hardware
with a BMC that supports power cycling.
Unlike power off, the amount of hardware that supports power cycling
is small.
.It Fl D
Delete existing
.Nm nextboot
configuration and exit.
.It Fl d
The system is requested to create a crash dump.
This option is

17
sbin/reboot/reboot.c
View file

@ -95,7 +95,7 @@ main(int argc, char *argv[])
struct utmpx utx;
const struct passwd *pw;
int ch, howto, i, sverrno;
bool fflag, lflag, nflag, qflag, Nflag;
bool Dflag, fflag, lflag, Nflag, nflag, qflag;
uint64_t pageins;
const char *user, *kernel = NULL;
@ -104,12 +104,15 @@ main(int argc, char *argv[])
howto = RB_HALT;
} else
howto = 0;
fflag = lflag = nflag = qflag = Nflag = false;
while ((ch = getopt(argc, argv, "cdk:lNnpqr")) != -1)
Dflag = fflag = lflag = Nflag = nflag = qflag = false;
while ((ch = getopt(argc, argv, "cDdk:lNnpqr")) != -1)
switch(ch) {
case 'c':
howto |= RB_POWERCYCLE;
break;
case 'D':
Dflag = true;
break;
case 'd':
howto |= RB_DUMP;
break;
@ -148,6 +151,8 @@ main(int argc, char *argv[])
if (argc != 0)
usage();
if (Dflag && ((howto & ~RB_HALT) != 0 || kernel != NULL))
errx(1, "cannot delete existing nextboot config and do anything else");
if ((howto & (RB_DUMP | RB_HALT)) == (RB_DUMP | RB_HALT))
errx(1, "cannot dump (-d) when halting; must reboot instead");
if (Nflag && (howto & RB_NOSYNC) != 0)
@ -163,6 +168,12 @@ main(int argc, char *argv[])
err(1, NULL);
}
if (Dflag) {
if (unlink(PATH_NEXTBOOT) != 0)
err(1, "unlink %s", PATH_NEXTBOOT);
exit(0);
}
if (qflag) {
reboot(howto);
err(1, NULL);